Re: [Elecraft] K4D compatibility
Yes, it will.73,Ed W0YK Original message From: Dave Sublette Date: 7/6/24 08:17 (GMT-08:00) To: Elecraft Discussion List Subject: [Elecraft] K4D compatibility I can't find a mail list dedicated to the K4D. If there is one, pleaseredirect me. I want to know if the K4D will seamlessly plug into my setup,using the same cables I am now using with my K3s, P3 driving my KPA500 andKAT500?Thanks for your help.Dave, K4TO__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K3 and P3
Well, I don't click on obfuscated links with no explanations. He could have easily put the text from some pdf doc into the email instead. On Thu, Jun 20, 2024 at 3:14 PM wrote: > All the preliminary stuff starting with the icloud URL is icloud > "protecting" you from opening what could be a suspect URL. Although in > this > case, if you look at the end of all that, you will see "IMG_0716.pdf". > That > is a PDF of what is in the package for sale. > > 73, > Ken, KJ9B > > -Original Message- > From: elecraft-boun...@mailman.qth.net > On > Behalf Of Ed Parish > Sent: Thursday, June 20, 2024 2:19 PM > To: Dan Littel > Cc: Elecraft Mailing List > Subject: Re: [Elecraft] Elecraft K3 and P3 > > What is this? > > On Tue, Jun 18, 2024, 12:07 Dan Littel wrote: > > > > > Attachment available until Jul 18, 2024 Click to Download < > > https://www.icloud.com/attachment/?u=https%3A%2F%2Fcvws.icloud-content > > .com%2FB%2FAT_Z1dHE4GVNSVSgJ0AotMBGf4ZhAQKCLbPjR_INRRA1hIS0WwcJ_OVz%2F > > %24%7Bf%7D%3Fo%3DAiu-KiMVO3qLl6BALEc7e53979WyusXEwuirkBIY2Zbk%26v%3D1% > > 26x%3D3%26a%3DCAogIeLSjPwAs-12bUr4_eItJ5or7HUj66UovmUWIqibSgkSehCR4OTg > > gjIYkfDftIwyIgEAKgkC6AMA_0zl7WVSBEZ_hmFaBAn85XNqJ2ufxJeh15UT3TgTOhTUbV > > p-MWe3sVtVFmR6LE_HM0nRl1B9rTmagHInZoga4J7OKslcXSr18C2w9c4yRgskeVr2HYes > > QlKAXodB2R-Dta7w%26e%3D1721318766%26fl%3D%26r%3DB5C44C10-F3C2-4B37-B7C > > 4-C1D25FC535C1-1%26k%3D%24%7Buk%7D%26ckc%3Dcom.apple.largeattachment%2 > > 6ckz%3D6338C022-26BC-47FB-8770-957F459AFB24%26p%3D33%26s%3DoyPpqUaxa0x > > O1hoC2nzV9SgjMB4=J309B-p3DAWV3sV5ZxXx9A=IMG_0716.pdf=26513679 > > >IMG_0716.pdf > > 26.5 MB > > > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net Please help support this email > > list: http://www.qsl.net/donate.html Message delivered to > > k1ep.l...@gmail.com > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message > delivered to ken.k...@gmail.com > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > -- Ed Parish, K1EP k...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K3 and P3
What is this? On Tue, Jun 18, 2024, 12:07 Dan Littel wrote: > > Attachment available until Jul 18, 2024 > Click to Download > < > https://www.icloud.com/attachment/?u=https%3A%2F%2Fcvws.icloud-content.com%2FB%2FAT_Z1dHE4GVNSVSgJ0AotMBGf4ZhAQKCLbPjR_INRRA1hIS0WwcJ_OVz%2F%24%7Bf%7D%3Fo%3DAiu-KiMVO3qLl6BALEc7e53979WyusXEwuirkBIY2Zbk%26v%3D1%26x%3D3%26a%3DCAogIeLSjPwAs-12bUr4_eItJ5or7HUj66UovmUWIqibSgkSehCR4OTggjIYkfDftIwyIgEAKgkC6AMA_0zl7WVSBEZ_hmFaBAn85XNqJ2ufxJeh15UT3TgTOhTUbVp-MWe3sVtVFmR6LE_HM0nRl1B9rTmagHInZoga4J7OKslcXSr18C2w9c4yRgskeVr2HYesQlKAXodB2R-Dta7w%26e%3D1721318766%26fl%3D%26r%3DB5C44C10-F3C2-4B37-B7C4-C1D25FC535C1-1%26k%3D%24%7Buk%7D%26ckc%3Dcom.apple.largeattachment%26ckz%3D6338C022-26BC-47FB-8770-957F459AFB24%26p%3D33%26s%3DoyPpqUaxa0xO1hoC2nzV9SgjMB4=J309B-p3DAWV3sV5ZxXx9A=IMG_0716.pdf=26513679 > >IMG_0716.pdf > 26.5 MB > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Too Many K2's for Sale from AB4IQ
K2/100 #5689 KDSP2 DSP Filter & Real Time Clock KSB2 SSB Board KIO2 RS232 Interface I/O W/Cable KNB2 Noise Blanker K160RX 160 Module w/receive Ant SW Fixed Audio out Clifton Labs 21 Buffer Amp K2/100 #7857 and K2/100 #7864 same as above except have the KAF2 RTC instead of the KDSP2 $1250 each shipped with insurance. Postal Money order or personal check. K2/10 #7529 KAT2 Auto Antenna Tuner KAF2 Audio Filter & Real Time Clock KNB2 Noise Blanker KIO2 160RX 160 Meter Module PTT OUTKey An External Amp KSB2 SSB Module $850 Shipped ALL rigs aligned by W8FGU Postal Money order or personal check. My PayPal account was hacked so no longer accept payment via that method. Ed AB4IQ ab...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS: Elecraft Cables (new)
Brand new, still in packaging…. E850720 K-Pod 6’ USB A male to B male $12 KXUSB cable $25 $30 for both Thanks! 73, Ed K6CTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Re Elecraft 20M SSB Net
Listened 4/14 on 14.303.5 at 1800utc and heard no one. No propagation. 73, Ed - KL7UW K3 + KXPA100 + Hygain Th3mk4 at 50-foot __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Re Elecraft 20M SSB Net
Eric, WB9JNZ, was off in Norway so Brian, K1NW, stood in as net control with relays John, N6JW, and Steve, WM6P. Odd propagation and heavy QSB. The net will meet again next Sunday at 1800Z on 14.3035 MHz. Comment: been a long time since trying to check-in. In past only heard John - N6JW who relayed my check-in to NC. Maybe try again to see if 20m propagation at 10am local-time has gotten better. I run K3+KXPA100 (100w) to Hygain TH3mk4 at 50-foot. Not a loud signal out of South-central Alaska (70-mi South of Anchorage). 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS: N6TV Y-Box with K-On
FS: N6TV Y-Box parallel splitter and breakout box for K3/K4. Included is the K-On accessory for the K-4. This will power on the K4 when you turn on your power supply (no need to use power switch on rig). $105 shipped. Thanks… 73, Ed K6CTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 VFO Friction
Elecraft can send the proper part.73,Ed W0YK Original message From: Joel Black Date: 3/26/24 07:23 (GMT-08:00) To: Elecraft List Subject: [Elecraft] K2 VFO Friction My K2 VFO knob spins a little more freely than I'd like. I took it off and looked at the felt and it appears pretty thin and worn.I really thought about using the felt rings that you can get for 12 VDC battery terminals but wondered if anything’s on those rings (anti-corrosive) that would keep me from doing that. Otherwise, is there anything that anyone has found that works particularly well?Thanks,Joel - W4JBBK2 #4833__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] IF OUT - Same as just sharing the antenna?
IF means Intermediate Frequency. It is the result of mixing the RF with a local oscillator, LO. So, no, it isn't sharing an antenna. On Sat, Mar 9, 2024, 15:39 JHR wrote: > Please help me understand how the IF OUT works on an Elecraft radio. Is > it the same thing as sharing the antenna with a T/R switch, or does it > tap the RF processing chain later down the line. Does the IF OUT merely > share the antenna, or does it come later in the circuit - are there any > practical reasons why one is better than the other? I presume the IF > OUT is better, but wonder why. > > [It matters and will settle a bet who eats steak and who eats hot dog.] > > Thanks in advance K8JHR > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/0 Mini and P3.?
No.73,Ed W0YK Original message From: Josep via Elecraft Date: 1/11/24 07:06 (GMT-08:00) To: Elecraft Reflector Subject: [Elecraft] K3/0 Mini and P3.? Howdy.!Is there a possibility to connect a P3 to a K3/0 Mini..?Thanks.73, JosepEA6BFBUG #256 - CWOps #3072 - FOC #2182 (ex 1724) - CTDXCC__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S VFO B doesn't change sub-RX frequency
Did you try B.SET and then unlock? On Sun, Dec 3, 2023, 12:06 Jim Kutsch KY2D wrote: > When the K3S sub-RX is turned on, VFO B does nothing. It's as if it's > locked > but unlock doesn't change the situation. Might there be a config setting > that was accidentally changed? I think I've gone through everything and > haven't found a solution. Thank. > > > > 73 Jim KY2D > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Kpod not Working on K3
Have you connected both the RJ45 data cable and a separate power cable? On Wed, Nov 15, 2023, 05:35 wrote: > Hi All, I have taken my Kpod from my K4 and put it on my K3. (I assume it > works for both rigs). > > The K3 has had the Mod completed as per the Kpod manual with a 6.8 Ohm, 1/8 > W Leaded Resistor as per pages 16-18 of the Kpod manual. > > Problems. > > 1. Kpod does not power up with the Data cable between K3 & Kpod > connected (No leds lit up at all. > 2. When I power Kpod with a 12v source the On led shows as does D1 - > D3 > when switched with the rocker switch. > 3. The large tuning knob on the Kpod does not function in any way. > > > > I have tested the Data cable with a network tester it is wired correctly > 2-6 > pins only and they show satisfactory on the tester. > > I have tried programming Macros and saved to K3 accordingly but the Kpod > doesn't activate any of them. > > > > Anyone have any ideas of possible problems that a dummy can fix or try at > home please? > > > > TIA > > Chris G0TZZ > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Re: Elecraft 80M SSB Net Report
Often read the reports from Elecraft Nets and kind of wondered what the "usual" maximum range for stations on the 80m SSB Net? I'm in southcentral AK so do not expect to ever hear the net which appears centered on MI (I was K8MWA 1958-1968 in MI). Late night 80m prop often brings in West Coast stations (W7 and W6) so that would suggest a couple thousand miles. Normal daytime 80m is about 400 miles up here. Also seems as a West Coast 80m net could co-exist with the current Elecraft 80m SSB Net. Be nice if NC were located in NW (Seattle?) as that might reach us 1300 miles to the north. I have checked in the 20m SSB Net in the past with 100w and 3-element yagi at 50-foot. Building a 1200w linear this winter (might improve chances??). I mostly do VHF-SSB or EME but with the great cycle-25 might enjoy what it brings in! 73, Ed - KL7UW https://www.kl7uw.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Kitchen Radio
https://www.target.com/s/am+fm+kitchen+radio On Sun, Oct 22, 2023, 10:11 Wilson Lamb via Elecraft < elecraft@mailman.qth.net> wrote: > Would someone please tell me how to find the message about the improvised > radios made from kitchen finds? > Thanks, > Wilson > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Astron RS-35M Hum
Glad to hear of the fix! My Astron 50M rack-mount vibrates and hums at times, but I cures with mechanical lifting the unsupported back. I will install rack rails when I move to the new hamshack (in a couple weeks). I have an old GE MASTR-II repeater PS that hums at startup but tapers off after warming. 15v@35A its a brute with massive transformer. But I just use it as bench supply intermittently, so live with the hum. I have two of these and the second one will get installed at my 2m-eme tower base to drive the Alfa-Spid RAK azimuth rotator (220-feet from new hamshack). A HP "blade" 50V/50A switching supply also located there to feed my 1200w 2m sspa (120-foot No. 2awg 240vac line runs from house). I have an Astron VM35 that blew a diode and seems to have a ground fault after repair. Maybe get around to look at it someday. It made a nice bench supply when it worked. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Fwd: K2 Band Data
wrong link: https://www.unifiedmicro.com/ apparently marketed by DXEngineering Forwarded Message Subject: Re: [Elecraft] K2 Band Data Date: Fri, 1 Sep 2023 12:29:42 -0800 From: Ed Cole To: elecraft@mailman.qth.net Not help for the K2 band data, but thought there might be interest in how I am interfacing my K3/10 band data to a 1.2 kW W6PQL amp LP filter bank: http://www.kl7uw.com/HF-6M_AMP.jpg Unified Microsystems makes an interface: www.microsystems.com/decoder.html 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 Band Data
Not help for the K2 band data, but thought there might be interest in how I am interfacing my K3/10 band data to a 1.2 kW W6PQL amp LP filter bank: http://www.kl7uw.com/HF-6M_AMP.jpg Unified Microsystems makes an interface: www.microsystems.com/decoder.html 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] A Good Headset For A K3
Just a couple more comments on the Antion ModMic: I plug into the rear mic jack on my K3 and the front jack of the KX3 using an adapter cable. The tiny boom mic has a foam cover for resisting wind-blast. Also has two settings: normal mic and cardiode pattern. On-air reports the normal setting has nicer sound, though both are good sounding. I have had not much use of the boom mic so far. One nice feature of the boom is easily detachable if you do not need a boom mic with the headset (uses an earth-magnet). I also own a Bose QC headset for flying but its not as comfortable as the Sony headset. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] A Good Headset For A K3
i Normally use my Heil HM10 desk mic and ancient Sony MDR-V600 headphones. But several years ago investigated finding a headset with boom mic. The Yamaha cm500 howled in feedback when put on over my hearing aids (even not plugged into the K3). I ended up attaching an Antion ModMic to my old faithful Sony headset. Got good on-air reports on the audio. I added a hand PTT button in the mic cord. Main use is for outdoor operation with my KX3 which is my 2m IF on 10-GHz operations with tripod-mounted dish. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Grounding, Lightning & Attic Antennas
Well...I'm blessed to live in a region with No* lightening activity, so generally have ignored doing all the preventative work. *We hear thunder about once every 4-5 years and see lightening even less often. But winter wind brings static build-up on exposed metal (antennas and wires) so isolating sensitive electronics is desirable. Diode discharge in coax lines or outright grounding when not in use. Apparently a static burst (or power-line surge) took out the ground choke in my KIO3A RS-232 I/F a few years ago and also got the IC (fixed by K3). I will install my new KIO3B soon to provide direct USB control of the K3 (KIO3A to become spare). I do use ground rods for safety grounding and noise and computers are on UPS. Phone (internet) and power is buried in my area. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Very late to the party - computer rig control and sound card modes for K3
I really don't know what the big deal is about Signalink. I have a non-USB K3 and have used it for FT8 as well as SSB contesting with just the internal sound card of my computer for over 15 years. I have also used inexpensive ($10) external USB sound cards when the internal sound card doesn't have separate line in and Microphone inputs. My desktop machine has separate inputs, but my laptop doesn't. On Tue, Jul 18, 2023, 05:00 Paul Barlow wrote: > Dear Elecrafters, > > I am very late to the party. For various reasons I have been QRT for a few > years and I'm just now getting back on the air. I'm still using a paper > log, and QRP CW is my 'thing'. > > My rig is a K3, serial no. in the 7000's. I have the KUSB cable, which I > have only used to update the firmware. Could I use this to connect to a pc > and have rig control via this cable? Say for interfacing with a logging > program? > > Also, I've never used the FT8 type modes. I understand they use the pc for > all the signal processing, and I could interface the K3 directly using > audio cables and VOX. I see that there are products available like the > SignaLink which interface with a pc using usb, which I think might be a > less fiddly option. > > I guess these subjects have been beaten to death years ago, is there > somewhere I could look to find some concise information? > > 73, > > Paul EI5KI > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] k4D using remotely
I subscribe to the K4 groups.io Thanks so much! Ed W0SD On 5/23/2023 12:29 PM, Lou Laderman wrote: Unfortunately not yet. For the remote software, here’s part of a post on the K4 group on groups.io from a Q with Eric at Dayton: Key points from Eric: IP audio is working, expect summer release (not in beta yet) which leads to: Remote from another K4 or K4/0; early summer (first) VK4 release, early summer (small fee), he only mentions Windows (any flavor, tablet or...) WITH panadapter (working now at the booth) K4/0 (front panel, p/s, I/o, internet) summer; waiting for critical components (parts company bought, handoff stumble, it's gonna happen); local audio, local keyer, i/o for logging (etc); it will support an internal battery (and charger); will allow plug in internet for wifi encrypted end to end paths (password key protected) for audio and K4/0 and K4(D) remote ops data path 73, Lou W0FK Lou Laderman (314) 308-4363 Sent from my mobile device On May 23, 2023, at 12:26 PM, Ed Gray W0SD via Elecraft wrote: I have a question on using my K4D at my home QTH in SD from AZ as a snowbird? If I buy a second K4D can I access/control/use my K4D from AZ at my home QTH over the internet. I want to do Digital, CW and SSB. I also read about "VK4". What is the status of this software? Thanks, Ed W0SD -- This email has been checked for viruses by AVG antivirus software. www.avg.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to llader...@icloud.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] k4D using remotely
I have a question on using my K4D at my home QTH in SD from AZ as a snowbird? If I buy a second K4D can I access/control/use my K4D from AZ at my home QTH over the internet. I want to do Digital, CW and SSB. I also read about "VK4". What is the status of this software? Thanks, Ed W0SD -- This email has been checked for viruses by AVG antivirus software. www.avg.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KI03B order
KIO3BUPKT-WL_KIO3B Upgrade Kit for K3: Confirmed my order a couple days ago. Been a long wait but happy to finally que up to my name! Not sure if I will install or just hold as spare for my KI03A. 73, Ed - KL7UW I ordered several months after the order period closed. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Using ANTLION MODMIC 4 with Elecraft K3
+173,Ed W0YK Original message From: George Fremin III Date: 3/13/23 06:20 (GMT-08:00) To: w...@w5wz.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Using ANTLION MODMIC 4 with Elecraft K3 I plug my mod mic into the back and the pinout is correct using rear panel and bias on George Fremin IIIK5TR> On Mar 13, 2023, at 6:08 AM, w...@w5wz.com wrote:> > > > Anyone using an ANTLION MODMIC 4 with an Elecraft K3?> > I'm having difficulty. The Modmic works great plugged into my PC Mic Input on the front panel.> > I believe the ModMic is electret - requiring BIAS, which I know is turned on at CONFIG > MIC > press #2, so the end result is FP.H BIAS.> > A Heil AD-1-K is plugged into the front panel; however, pin 6 (8v) is not wired to the mono 1/8 mike jack on the adapter. The Modmic uses a T-R-S 1/8 inch.> > What is the correct pinout for the K3 front mic jack to the Modmic?> > --Scott, W5WZ> __> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> Message delivered to geo...@kkn.net __Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Vertical antennas Was: KX3 and KPA1500, compatibility
Couple comments: Vertical radials: I put up a top-loaded (very) short vertical for 630m (475-KHz). Top "hat" was two parallel 130-foot horizontal wires and vertical was three parallel wires 43-foot long (inverted-L). Used a BIG base loading coil but needed radials that normally would be over 600-foot long (1/4WL). I only had room for 70-foot radials. I was told to get some 3-foot wide chicken wire fencing and lay that out on top of the ground for radials. I put three down and also connected to the shield of my 120-foot run of 1-5/8 inch hardline as fourth radial. That system worked great and I was heard 4,000 miles away in Buffalo, NY (EIRP of 4w) on 500-KHz long duration CW. My new 630m antenna will be a "T" vertical with four top wires formed by 80 & 40m dipoles. Feedline will be 40-foot 300-ohm open wire which will be shorted for use as a vertical and use the same base loading coil. Radial system will be wires lain in the lawn with staples from DXEngineering (so lawn can be mowed). Start out with six radials but can add to that over time to improve the antenna. The vertical will also set up for 160m use by using a different coil tap. I once had a 4BTV which I bolted to the front bumper of my truck and it worked quite well without radials or counterpoise (heard Antarctica from Alaska on 20m SSB from a campground setup). No longer have it (use Hygain TH3mk4 at 50-foot, instead). 73, Ed - KL7UW --- Now, it has one "radial". Actually an Ufer ground, consisting of a concrete slab, 70 feet long by 10 feet wide, with 80 feet of 8AWG copper wire buried in it. The slab is actually a solar collection field for our swimming pool. I left a space in the middle for the antenna. I was going to do radials, but had a sudden thought - I'd be a fool if I didn't bury some wire in that concrete. So I ran to the local hardware store, grabbed a roll of 8AWG off their rack, and strung it around the site, hooking it up to the rebars. Then they came and poured the concrete. - Jerry, KF6VB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Starting to Ship K3 & K3S Option Last Time Buy, Orders (3/1/23)
*KIO3B & KSYN3A* - Now Shipping (finally!): We received *100%* of both items late last week from our Calif. PCB assembly subcontractor and we are testing, packaging and shipping them now. -- Once we finish the prepaid deposit orders, we'll be contacting our waitlist orders and going through the same process to confirm shipping info, collect funds etc. We will post here and via our newsletter much more often as we work through the pile of orders. (% of deposit orders, and then the same for waitlist orders. ) --- I'm one of the wait list for the KIO3B, so hope I am not too far down the list for this shipment. My KIO3A was repaired by Elecraft in summer 2020 and is working FB. Just decided it would be prudent to have a backup. I may swap out for the B version to try the USB connection for running wsjt-x. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 no power out
A couple days ago I encountered that kind of issue: I had the K3 in DATA mode "looking at the psk-31 mode" and went to shift back to USB, but the XMIT/TUNE button yielded no output. Checked thru the list you provided and checked that I was in ANT1 output as I have run xvtr mode in the past. No output into my KXPA100/KXAT100; no input to re-tune the ATU...huh? Manually keying PTT switched the KXPA100 into tx. So finally, I recycle the power button on the K3 and it resumed normal operation (TUNE worked; SSB worked, ta-da). I have noted that changing bands with the K3/KXPA100 combo the ATU doesn't always recognize the freq shift (until I recycle power on the KXPA100). I'm guessing that's because there is no control line from the K3 to the amp like what is used with the KX3 (which is really nice when mobile and amp is under the back seat). Anyway sometimes recycling power works! 73, Ed - KL7UW Josep, Please check the obvious things: 1) Is 'test mode' on? 2) Is the power level turned to zero? 3) Is the VOX on (for CW)? 4) Are you using the right antenna selection? 5) Is your key plugged in/wiring OK? I know some of this is really basic, but sometimes in the heat of battle, something gets overlooked. 73, -- Dave, N8SBE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 recommendation - wait for HD or no?
On the subject of two radios operating in close proximity: I have a K3/10 (12w version) that I use with a KXPA-100 on 6m or HF. I have noted the noise level of the K3 S-meter rise about one s-unit when I transmit on 2m with the IC-9700 + 100w TE amplifier into a high-gain 2m vertical about 100-foot away from the 3-element 6m yagi. K3 is on 50.125 in SSB mode, but both radios physically on the same table. I've not been overly concerned, as trying to receive 6m while transmitting on 2m is not a normal operating situation for me. K3 is updated with latest Synthesizers (two). I suppose cable radiation could be the cause vs antenna-antenna pickup. Also have not tested IC-9700 harmonic output. Testing with K3 connected to my 500w Bird term probably would reveal this. Anyway thought it curious behavior for the K3 (SN 4340). 73, Ed - KL7UW may be sort-term situation as the shack will be moved into a new location in a couple months with new cables and grounding. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Diversity
One VERY IMPORTANT reason I chose the K3 with sub Rx was the fact the two receivers were in coherent phase, whereas Flex radio had two Rx but not in total phase. I think diversity is tossed around as a loosely defined process. In 2012 when I wanted a dual-Rx radio to process dual-polarity signal for use by MAP65, K3 was the only "game" available "off-shelf". Since access is not provided to the IQ data stream in the K3, I had to resort to running two phase-locked LP-Pan (SDR) on the 1st IF's. I had to modify the LP-Pan to have both in phase-lock on 8.215 MHz. A few years later the IQ+ was introduced for use on 144 and 432 dual-Rx. I is a SDR. But one still would need a separate transmitter to operate. Here is a block diagram of how I used my K3 (in diversity mode) in a dual-polarity adaptive receiver running MAP65: http://www.kl7uw.com/MAP65.htm Recently, I explored the SDR-DUO for use for noise cancelling and noted with adding ext ref, the two Rx were in phase-lock. Later, I noted it tuned up to 3-GHz so would be usable on ham freq up 13cm (2.3 GHz). I'm considering getting one primarily as a RA receiver on 21cm (1420-MHz). I suspect there are more choices out there for diversity Rx, now days. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Two-meter Radio Needed
I have had several 2m radios (HT's and mobiles). to be equivalent to a 706 you are looking for an all-mode (usually mobile or desk model). I have had the IC-211 (pretty much obsolete, now days), FT-847, FT-736R, and my K3 + DEMI transverters. The K3+DEMI is pretty much dedicated to eme use so I recently bought a IC-9700 to replace the aged FT-736R. I love it for SSB or FM usage. But its not cheap ($1500 range). But you do not need amplifiers with it. 73, ED - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 & K3S Options Last Time Buy Update,, (12/02/2022
Well, I found the cause of the clicking (but not what is clicking). I use two almost identical computers (DELL Inspiron desk tops). One is for general Internet use, e-mail, etc. the other is dedicated to ham radio sw. The K3 is connected to the later one. So I decided to try a different USB port (4 ports on back, 2 on front) and the clicking stopped. I had disconnected a USB cable to do this. When I reconnected it the clicking started back up. That cable goes to my SDR-IQ receiver. Apparently the two radios are interacting (maybe trying to connect to the same port?). Anyway, simple solution is to run SDR-IQ on computer A and K3 on computer B. Maybe I will explore this deeper at a later time. This was not the start-up port testing that windows does. This was non-stop clicking as long as K3 was connected (wether powered On or OFF). Obvious it was computer generated as it stopped if computer shut-down or USB cable disconnected from K3. curious that the clicking appeared to not interfere with K3 operation or running computer sw (like wsjt-x). we can close this topic. Ed -KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 & K3S Options Last Time Buy Update, (12/02/2022)
Nice to hear about. I contacted sales@elecraft regarding getting on the KI03B list (more than a year ago) and was told, at that time I would be added. I have the KI03A (original with my K3) which Elecraft repaired about two years ago and has worked well, so far. I decided I should have a backup so ordered the B board (A NLA). But not being one of the original list, but an add-on, I wonder if inventory will be sufficient to fill my order? I encountered a strange phenomena, as the K3 would constantly click whenever the computer I/F cable (from Elecraft) was connected and computer turned on. I have 4 USB ports on rear of computer and 2 on front. Moving to a front USB connector ceased the clicking. BTW the clicking appears not to affect the K3 operation (port uses Com5). I use my K3 on FT8 and for eme (JT65 or Q65), so very important the computer I/F works correctly. B version uses direct USB/USB interface so might not be an issue. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Yamaha Headphones
$26 on Amazon, but the SB45 for $30 may be better for our use.73,Ed W0YK Original message From: Todd KH2TJ Date: 12/1/22 21:38 (GMT-08:00) To: Walter Underwood , Elecraft@mailman.qth.net Subject: Re: [Elecraft] Yamaha Headphones AT $27 with free shipping, can't go wrongI've been using an older SB49 for a few years now without any trubs.https://www.bhphotovideo.com/c/product/1066286-REG/koss_184755_full_size_headphones_noise_cancelling.html/overviewLater,Todd KH2TJFrom: elecraft-boun...@mailman.qth.net on behalf of Walter Underwood Sent: Monday, November 21, 2022 11:42 AMTo: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Yamaha HeadphonesOn Nov 18, 2022, at 6:24 AM, Mike Smith VE9AA wrote:>> Recently I bought a few sets of the Koss SB40 and by gosh they look an awful> lot like the Yamaha's..maybe made in the same factory - who knows. They are> starting to get hard to find as well but I found mine on amazon.ca for> around $60 CDNThe Koss SB40 appears to be the same headset as the Yamaha CM500, but with a dynamic mic. My first CM500 headset actually said “KOSS” on the microphone plug, so yes, they are probably made in the same factory.An electret mic has much better fidelity than an inexpensive dynamic mic, so the CM500 is probably a better choice.wunderK6WRUWalter UnderwoodCM87wjhttp://observer.wunderwood.org/ (my blog)__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to w7tr@outlook.com__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Running high power
I only have one RFI issue with my K3+KXPA100: running 80w on 50.125 SSB. Seems my wife has her portable radio tuned to 100.1 MHz FM in the next room. 50.125 x2 = 100.25 "ouch"! Antenna is 20-foot high on tower attached to end of the house. Guess I need a "good" harmonic filter. I had one on my Harris 1000w 6m amp (converted ch.2 TV amp), but it was sold with the amp. When I get my MRF-1K50H LDMOS amp running 1200w on 160-6m will be interesting to see how well the LP filters do. spring, next year> 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Yamaha Headphone
I can see this has really drifted off topic. MY first phone radio (1960) was a WWII surplus ARC-1 that a ham friend modified to 144-MHz for AM. Ran 20w with 820's. The hand mic was certainly a carbon mic. First mic I bought for ham radio, I splurged and got an EV-664 Cardioid dynmaic. It was all metal and designed for a metal tube base mount. Sure put out sweet AM in 1966 with my Johnson 6N2 running 150w on 2m. For my FT-847 (bought in 1998) I got a Heil HM-10. Still use it with my K3 (SN4043) bought in 2010. "and that is the rest of the story"! 73, ED - KL7UW (Happy Turkey Day) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 Voltage?
PS: Only the mains line is aluminum and connections treated with antioxidant paste. All new wiring in the new hamshack is copper (12-2 for 120vac and 10-3 for 240vac). The 3000w Meanwell 50v PS is served with a short 10-3 line to a 30A twist-lock receptacle in a floor mounted utility box with three foot 8-3 jumper to the PS (All copper). Max load is 12.5A; fused at 15A. Meanwell has internal overload and overtemp auto shutdown. Main thermostat (3000w) is programmable, so heat load will only be highest when the area is occupied. The workshop has manual thermostat which can be turned off when shop not in use (dividing wall is insulated between hamshack and workshop). The building will have a monitored (24/7) security system with smoke monitors. Monitor service calls police/fire dept if no one answers the phone. Two FD stations within five miles. I guess I could add thermistors to the mains contacts to alert overtemp. I use such a system on my QRO amp heatsinks to protect the amps (auto-overtemp shutdown of B+). I will monitor initial application of 240vac power to look for problems. In my college years I was a Electrician assistant for one summer job and got a good practical education installing ckts (even 440 industrial). Thanks for all the comments! Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 Voltage?
On the general subject of house wiring, loads, and resulting voltage: I am wiring my new hamshack with 240vac mains extension from the house. I selected three No. 2 awg aluminum lines (copper not commonly used these days). These are approx 1/4-inch diameter. That is rated for 90A (in general). Resistance is 0.318 ohms/1000-feet so my 120-foot run has 0.0382 ohms. At 50A this results in a voltage drop of 1.9v. My service voltage is 243VAC. Estimation of max load at the new hamshack/workshop calculates as 36.5A. Maximum will likely never exist as not everything will be activated simultaneously, but good design is for max load. Largest load is electric baseboard heat (4000w); 50v PS is next (3000w). All my QRO amps are LDMOS and run about 2500w dc-input. I use three of these switching PS, but only one at a time. Info on my website: www.kl7uw.com 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Recommendation for Microphone for K3s?
I also bought the Antlion Modmic. Previously, tried the CM500 and they caused my hearing aids to "howl" in feedback (not even connected to a radio). The Modmic uses a tiny earth magnet that attaches to my revered old Sony stereo headset. The mic boom clicks to the magnet securely. I tested both normal and cardiod pattern settings with good reports with my K3. Comes with two lengths extension wires, PTT module, and 1/4 to 3.5mm stereo adapter, all in a neat zipped carrying case (for when do not want a boom mic). Mic has wind-blast foam cover for operating outdoors. I mainly bought it for using with my KX3 operating portable mw shots with small tripod-mounted dish on SSB. Also, good for SSB Contesting or running a net when you want hands free for logging. 73, Ed - KL7UW If I is was not clear - that i the beauty of the ModMic you can add it to any headphones. And it does not damage the headphones and when you remove the mic the attachment point is small and does not affect the headphones in anyway. So I can use my Bose on the airplanes and then pop the mic on them when I get to the ham staiton. And it easy to take off when I am not on voice modes. https://antlionaudio.com/products/modmic-uni -- George Fremin III - K5TR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Recommendation for Microphone for K3s?
Still $60 at Sweetwater: https://www.sweetwater.com/store/detail/LC2CM500--yamaha-cm500-closed-back-b roadcast-headset-with-boom-mic 73, Ed N3CMI -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of j...@kk9a.com Sent: Wednesday, November 2, 2022 9:52 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Recommendation for Microphone for K3s? I got a few direct emails saying the same thing. I know that you can still purchase the CM500, it just seems to be a lot rarer than it once was. A lot of places like B show the Yamaha CM500 out of stock or no longer available. Even Yamaha USA shows the item out of stock. One Amazon seller lists it for $109.95 + $19.95 shipping and they have a poor delivery rating. Another Amazon seller has only 1 product review and it is not available with Prime. John KK9A -Original Message- From: k...@comcast.net [mailto:k...@comcast.net] Sent: Wednesday, November 2, 2022 10:44 AM To: j...@kk9a.com; elecraft@mailman.qth.net Subject: RE: [Elecraft] Recommendation for Microphone for K3s? Not sure about the manufacturing aspect but still available from amazon, sweetwater, etc. Hank / KR7X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of j...@kk9a.com Sent: Tuesday, November 1, 2022 9:57 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Recommendation for Microphone for K3s? Is the Yamaha CM500 still being manufactured? John KK9A Rick NK7I wrote: They're nothing special; you can dial in equalization just as well in the K3S. I bought the Heil with my K3 and quickly gave up on them. The Yamaha CM500 plugs into the rear (with bias) and the headphones are comfy for hours, without spending a lot (by comparison, you can get a few for the cost of one Heil). They block most of the noise in my shack. I keep a couple spares as the foam covers do wear out. If you need to block of lot of shack noise, there are other options, most are expensive. A search of the archives is recommended, this topic has been covered many times before. 73, Rick nk7i __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to edhop...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft AX-1 Whip Antenna
Ghost or Carolina Reaper chilies, yes! RF or poison oak...NO! 73, Ed N3CMI -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Hank via Elecraft Sent: Sunday, September 25, 2022 7:13 PM To: Wayne Burdick Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft AX-1 Whip Antenna Sometimes the burn feels good! > On Sep 25, 2022, at 7:17 PM, Wayne Burdick wrote: > > No. But try on a little poison oak followed by a hot shower. OMG. That’s the > nice burn. > > > elecraft.com > >> On Sep 25, 2022, at 12:11 PM, Fred Jensen wrote: >> >> There is no such thing as a "nice" RF burn. >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> Steve L wrote on 9/24/2022 6:36 PM: >>> Caution when using this location: Make sure your counterpoise is insulated >>> and there’s no way to contact bare metal at this point with your hand when >>> using the KX2 hand-held ‘walkie-talkie’ style. I received a nice RF burn >>> on my hand at this point once! >>> >>> Steve >>> AA8AF >>> >>>>> On Sep 24, 2022, at 3:37 PM, Dan Presley wrote: >>>> >>>> The other nice feature of the KX2 is the mini banana jack on the side of >>>> the radio for attaching the counterpoise . It’s perfect for pedestrian >>>> mobile and should you encounter some sort of snag it’ll pop out before the >>>> wire breaks.Wayne can better comment than me,but I believe the resonance >>>> of the AX1 (or AX2 I presume) it’s not right within the 20M band, but >>>> close. The auto tuner easily takes care of matching and as Wayne mentioned >>>> earlier compensates for all of the other variables. Just a note that the >>>> AX2 is a single band coil and can be modified for different bands. Plus >>>> it’s even a lot lower profile than the AX1. >>>> If you want to see some fun videos of using the AX1 directly attached to >>>> the KX2 search on YouTube for HB9BZG-SOTA from the Swiss Alps! >>>> >> >> >> >> -- >> This email has been checked for viruses by AVG antivirus software. >> www.avg.com >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> n...@elecraft.com > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > h...@optilink.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to edhop...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 has ticking sound
I thought this might be of interest: I use my K3 for digital modes which requires a USB/RS232 conversion cable. A couple years ago my FTDI cable quit working and also one I bought locally would not work. I had a Western Mountain Nomic soundcard which came with a Prolific cable, so I tried it with my K3 and it worked (for awhile). The computer would shut off the com port after running about 4-hours, and only way to restore was to plug into a different USB jack (and different com port). Then, lately, my K3 would begin ticking whenever the computer was turned on. It sounds like a mini relay being switched 2x per second. Radio ticked whether turned on or off. Only went away if I pulled the com cable or shut down the computer. Almost had me wondering if Elecraft installed timer. My first thought it was PTT being toggled, but PTT works normal even with radio ticking. I could not find anything being affected as far as the radio functions. So I reasoned the problem was the cable and ordered a new KUSB cable; arrived two days ago. It works fine and no ticking. 73, Ed - KL7UW PS: see my use of the Nomic with the KX3: http://www.kl7uw.com/KX3_Computer_Interface.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Lighting
Another anecdote: Summer of 1981 I was working for the BLM Alaska Wildfire Center in Fairbanks as a radio tech. That summer a Class-A fire started near the town of Livengood and only three miles away from the Alaska Pipeline that brings crude oil from the north shore down to Valdez. There was great concern that the fire would reach the pipeline so large response was activated. I was assigned as the Radio Officer for this. The main base camp was set up on a 2400-foot high ridge that overlooked the fire. We had a tent dispatch center consisting of two vertical VHF antennas mounted on two 30-foot fiberglass "Hot Sticks" (so name as the telescoped from 8-foot and primarily used by power line workers for high tension lines). From this contact was made over 75-miles to the BLM Base. A wind storm generated considerable static electricity such that the HT's lying on the ground would draw a six inch arc if one were to try picking up the radio. Initially being told by one of the dispatchers that the "radio bit her", I scoffed that a 6v radio could do that and promptly demonstrated my "intelligence" by getting shocked when I tried to pick one HT up. Took me a bit to work out what was happening. There was a pause in dispatch for almost an hour. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Any progress on K3 modules?
Howard-WA4PSC. and all: Just had a personal experience that show this: I ordered 15 ferrite beads in an order to Digi-Key on April-18, this year. They were back-ordered an I received notice they are shipping them, today! Only a four month delay. Good thing I hadn't started on that 1200w amplifier kit, yet. 73, Ed - KL7uW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Any progress on K3 modules?
Group 3: KXV3B, KBPF3A, P3TX Monitor, KAT3A:, KPA3A, 10-14 weeks --- Rough calculation from May 1 to August 20 is 15 weeks, so if parts arrived as was predicted in May, these should be in production. I'm on the waiting list for a KXV3B. After all the discussion on the sensitivity of this module to taking a hit, I decided to have a backup for my KXV3A. It failed unexpectedly in 2020 and was repaired for me by Elecraft (taking about two months). This module is essential for my eme use of digital modes. This is 90% of my use of my K3. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] switchbox KX3 to signalink/mike+headphones
I made something similar: I wanted to breakout the mic PTT line from my IC9700 to control a sequencer (which was already wired to control preamps, TR relays and amplifier PTT's). I found 8-pin connectors on Amazon that would mate to the IC9700 mic jack, used RG-174 for shielded cable for the mic audio jumper inside a small aluminum box and used cat-5e for mic cable jumper from radio to switch box and added a clamp-on ferrite bead at the radio end (for ac hum/noise rejection). I used 4-pin mic connectors to route the PTT to/from the sequencer (and using more cat-5e for that jumper). I added a toggle switch to defeat radio PTT if I was running my K3 with the sequencer to avoid accidental keying of the IC9700 by the sequencer. http://www.kl7uw.com/IC9700_Hints For interfacing KX3 mic/signal link, you will need a four conductor mini phone jack to mate into the radio. They can be found with a little searching. I made a computer interface for my KX3 using a West Mountain Rigblaster Nohmic: http://www.kl7uw.com/KX3_Computer_Interface.htm These are NOT hard to do projects. No surface-mount soldering of computer components, involved, 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] N6TV Y-Box has been sold
Thanks for the interest!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS - N6TV Y-Box
Now that I have a K4, I no longer need my Y-Box. This is an original model….it’s in excellent condition. $85 shipped. Thanks! 73, Ed K6CTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] The RIGHT way is to adjust COMP
From: Bob McGraw
nd.net>
Start with COMP at 0, adjust the MIC gain while speaking normal voice to
attain 5 to 6 bars {no more} as indicated on the ALC meter.? Then adjust
the COMP for a value to indicate about 10 on voice peaks.
For those that believe in using the "I turned it up a little bit, now
how does that sound?" approach, . forget it.? Set it correctly as
described above? and it will sound great.?? There is a right way to do
this.?? Anything else is flying by the seat of your pants.
If you desire to have it sound different, then twiddle the EQ values
until your hearts content.?? After doing so, you may need to reset the
MIC and COMP levels to be correct.
I much prefer to listen to my signal on a remote SDR and record my
signal on the SDR site. Then listen to it in my shack on my speakers.?
Then I know HOW MY SIGNAL SOUNDS.?? That's what is important. ? I make
adjustments from there.
As to others, they can adjust their receivers, their speakers, their
hearing aids and a host of other things that will make ones signal
sound..err, many different ways.? So which one of the "many
different ways" is best?? Likely none of them.
73
Bob, K4TAX
---
OK, with mic set to 20 ALC was a little low; 23 setting produced ALC=5
with speaking the word "FORE" (old radioman's test word for checking
modulation).
When I advanced COMP, 23 now has 10-dB indicating. MY guess the
difference heard by others from 20&25 to 23&23 probably would not be
discerned. I will find out tomorrow during our VHF Net. My old default
settings were 20&20.
73, Ed - KL7UW
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ham Qualifications, Customer Service
On 6/29/2022 9:39 AM, Ed Cole wrote: > Note on SSB compression, I've run at 20 with no complaints of distortion > or splatter. Dial readout is the WRONG way to set compression -- it's meaningless. The RIGHT way is to adjust COMP for a METER reading of 10 dB on voice peaks. 73, Jim K9YC OK tested with COMP meter and 25 gives 10-dB. 20 setting produced about 2-dB. Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ham Qualifications, Customer Service
I used my K3/100 in the 2007 CQWW SSB contest from J3A. reply to: k...@arrl.net On Wed, Jun 29, 2022, 12:40 Ed Cole wrote: > I bought my K3/10 in 2010 (SN 4340). Didn't realize that was only two > years after launch of the radio "We started selling the K3 in early > 2008-per Wayne". > > radio has performed well over the last 12 years. Only one failure of > the KIO3A board which I opted to have Elecraft repair (two months in > 2020; height of Covis issues). I did upgrade my two synth boards and > upgraded the general band filter to add 630m use. > > Recently, in light of comments about the KIO3 board, I ordered a KIO3B > as backup spare (just in case as computer I/F is critical for my use of > the K3 on digital modes - eme). > > Since I run in transverter mode most of the time, little actual usage of > the 10w modules have transpired. Now running 6m-eme at 3w still ought > to be gentle on the transistors (I drive a MRF-1K50H LDMOS final amp). > > Surface-mount repair tasks one's abilities in eyesight and finger > control (I did s-m repair for over twenty years, professionally and > getting difficult as I age). So I understand the comments about > self-repair of much of today's electronics. > > When I was working in a commercial shop we had a rule about deciding > repair or replace: if repair costs equal or exceeded 50% of replacement > we would recommend replacement. Then there were always the customer > with 1950's stuff wanting repair with no hope of finding replacement > parts (eg vibrator PS). > > Note on SSB compression, I've run at 20 with no complaints of distortion > or splatter. I do not do "combat contesting" or "aggressive DX", so > that seems a good setting. Audio drive also at 20 using Heil mic. > > Spending money on ham radio at advanced age is a difficult choice. But > I decided to renovate my 12x38 foot storage building into a ham > shack/workshop this summer (looking like $15K with most work done by > contractor). But moving out of 11x12 spare bedroom will be nice > (emptying the storage bldg is not). > > 73, Ed - KL7UW > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ham Qualifications, Customer Service
I bought my K3/10 in 2010 (SN 4340). Didn't realize that was only two years after launch of the radio "We started selling the K3 in early 2008-per Wayne". radio has performed well over the last 12 years. Only one failure of the KIO3A board which I opted to have Elecraft repair (two months in 2020; height of Covis issues). I did upgrade my two synth boards and upgraded the general band filter to add 630m use. Recently, in light of comments about the KIO3 board, I ordered a KIO3B as backup spare (just in case as computer I/F is critical for my use of the K3 on digital modes - eme). Since I run in transverter mode most of the time, little actual usage of the 10w modules have transpired. Now running 6m-eme at 3w still ought to be gentle on the transistors (I drive a MRF-1K50H LDMOS final amp). Surface-mount repair tasks one's abilities in eyesight and finger control (I did s-m repair for over twenty years, professionally and getting difficult as I age). So I understand the comments about self-repair of much of today's electronics. When I was working in a commercial shop we had a rule about deciding repair or replace: if repair costs equal or exceeded 50% of replacement we would recommend replacement. Then there were always the customer with 1950's stuff wanting repair with no hope of finding replacement parts (eg vibrator PS). Note on SSB compression, I've run at 20 with no complaints of distortion or splatter. I do not do "combat contesting" or "aggressive DX", so that seems a good setting. Audio drive also at 20 using Heil mic. Spending money on ham radio at advanced age is a difficult choice. But I decided to renovate my 12x38 foot storage building into a ham shack/workshop this summer (looking like $15K with most work done by contractor). But moving out of 11x12 spare bedroom will be nice (emptying the storage bldg is not). 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Field Day and FT-8
Ham radio is a TECHNICAL hobby. We are required to pass an exam demonstrating that we understand the underlying principles, our privileges are based on our having that understanding, and it is our LAWFUL responsibility to transmit clean signals. A major problem is that many hams have never bothered to learn the many fundamentals of radio, audio, and electronics, stopping after memorizing only enough Q to pass the exam for their license. 73, Jim K9YC --- Jim, Have to smile (or cringe) at your observations. I certainly did not have much technical knowledge when I got my first license in 1958 (Novice at age 14). And most hams were not wanting to be bothered explaining anything to a "kid". I bought ARRL books and eventually QST from which I absorbed a little bit. I used the Q approach to passing exams (even the 2nd Class Radio telephone license). My first antenna was a 40-meter folded dipole made from TV twinlead (locally obtainable). I just soldered a PL-259 onto the twinlead and screwed into my DX-35. Peak-n-dip and I had output. SWR I took Elect. Engineering in college and learned a lot of higher math ways of designing electronics (but the simple algebraic equations in the ARRL Handbook carried my further). design now involves sw apps. Starting as a young engineer, I learned enough to know I didn't know much about much. An older mentor provided wise education on many things. But with no desire or ambition to learn; null = null. The knob thing came from many CBer upgrades to ham radio. Or "More" is better. I am still running into hams that do not know how to solder even basic things. My last 20-years of professional life I was doing surface-mount troubleshooting and repairs. New techs just swap boards. I use FT8 mostly on 6m. I noted that audio level had to be adjusted if I switched to MSK-144 (both pgms under wsjt-x). I run a K3. 73, Ed - KL7UW Note to Wayne: I worked as tech writer with Hughes Aircraft for 2-1/2 years. But at age 78 might be a bit late for being employed, again. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 and Heatsink
I added a heat sink to my KX3 a few years ago since I use it with long "key-down" digital modes such as wsjt-x (primarily on 6m). I obtained the heat sink from VE7FMN and it installed easily. Later Elecraft came out with its version which I bought (but have not installed). Being a thin metal plate didn't seem comparable in heat conduction to the die-cast aluminum unit with cooling fins. I tried finding VE7FMN's product and domain name is not registered so guessing he quit making them. My testing results: http://www.kl7uw.com/KX3.htm 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/P3 for sale - correction
Obviously “local sale” is no longer correct! Thanks I’m selling my K3/P3….. K3-F 100 W Main rx filters (all 8 pole): 1.8 kHz, 1 kHz, 400 Hz, 250 Hz. KUSB KXV3 KRX3 sub rx - 2.1 kHz, 1 kHz and 500 hz filters P3 includes P3SVGA and P3 TXMON with coupler The K3 had a complete refresh in 2018, including upgrading the DSP… Includes all manuals, cables for P3 and TX Mon, and KE7X book.. $2350 (plus shipping) 73, Ed K6CTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/P3 for sale
I’m selling my K3/P3….. K3-F 100 W Main rx filters (all 8 pole): 1.8 kHz, 1 kHz, 400 Hz, 250 Hz. KUSB KXV3 KRX3 sub rx - 2.1 kHz, 1 kHz and 500 hz filters P3 includes P3SVGA and P3 TXMON with coupler The K3 had a complete refresh in 2018, including upgrading the DSP… Includes all manuals, cables for P3 and TX Mon, and KE7X book.. I’d prefer a local sale….so I’m sending this to this list first! $2350 (plus shipping) 73, Ed K6CTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 reduces power as it gets warmer?
Disclaimer: OK the title is about the KPA1500; Elecraft advice probably extends to all their amps. KL7UW *** "You should be running fans full-speed under those conditions if you want it to live long! " Please share any data you have that supports any claim than running continuous full fan on any Elecraft amplifier has any advantage over letting the firmware control the fans based on PA temperature. Andy, k3wyc - If talking about CW, SSB, other low duty cycle modes that is fine, But: Running digital modes that run "Key down" full output for longer time periods (eme cycles Tx=50sec/ Rx=70-seconds sometimes for for significant parts of a hour). The safest procedure is to turn on fans full time. Letting temp control logic control speed is also good (with Elecraft) but you are depending on reliability of more ckts. What is the risk? How much to repair blown amp? KL7UW *** It?s actually better than that. FT8 only transmits for 12.6 seconds giving a duty cycle of 42%. The 7.4 seconds left over are used for decode so you can have an answer to send in the next transmit slot. 73 Bill AE6JV - Assuming you are running FT8 in 15-second sequencing. But FT8 can be run 30-sec or 1-min seq, where Tx time is extended. FT8 on HF or 6m using skip or sporadic-E, signals are probably strong enough for short receive sequences. Not true if you are trying true weak-signal methods (example eme). KL7UW *** The engineer that created the amp recently said that you should let the amp handle the fans.? It should be in the archives here on this list. W0MU -- OK, how much risk you take is up to you. Regarding fan wear, I'm sure Elecraft chose long life-cycle fans (what is the MTBF?) BTW does the KPA1500 display heat sink temp? I add thermistors to all my amp heat sinks to real-time monitor temp. The control board I use provides cktry for monitoring thermistor voltage plus auto-shutdown if temp exceeds trip point (or I can switch fans on, Full Time, bypassing the fan control ckt). I operate eme 99% of the time. 73, Ed - KL7UW Only Elecraft amp I own is KXPA100 the rest are W6PQL LDMOS amps __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 reduces power as it gets warmer?
Slight drop (10%) in output with warming is normal for most solid-state amps. Having fans run full speed might counter that, slightly. Drop from 1500 to 1350 is 0.5 dB in signal (which is likely only noticeable if you are running a marginal propagation path (like eme). In fact that is not significant on eme (normally) if you have sufficient antenna gain. FT8 and many of the wsjt-x modes are weak-signal modes so one wants to run as much power as needed for the path. Eg: yesterday I ran FT8 on 6m with a friend that was running a portable station for POTA. He had 50w into a mobile vertical. That was good for a -16 dB signal at my 6m-eme station (two 7-element LFA yagis into a K3). I ran 1000w which was more than needed for the path (received 599 report since he was in contest-mode). He was in the mountains only 100-miles from me. Most amps are most efficient at their rated power: My converted Harris TV Linear runs 1000w at 48.6v at 50A (dc power is 2430w so 1430w is being dissipated as heat and indicates eff of 41%). It uses 16 transistors to do that. Five 4-inch fans run full speed (always) because I normally am running "key down" digital modes 50-seconds out a 2-minute Tx/Rx cycle. Good part of this Harris designed this amp to run continuous in ch2 AM for TV (100% duty cycle). Keeps shack warm in winter! You should be running fans full-speed under those conditions if you want it to live long! When I ran a 8877 on 2m running JT65, blowers ran continuously (and tube never failed at 1500w). Talk about noise! Good part about digital modes is one does not listen to received signals, so noise is not a hindrance; wear noise-cancelling headset if it bothers you (I just remove my hearing aids). 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Receiver impedance?
Most of you are HF operators; translation: you receive strong signals. But if you design VHF/UHF/mw preamps, achieving low Noise figure (NF) is desired. Advanced receiver designers are aware lowest NF does not occur at low-Z (eg. 50-ohms). Input Z is lowest in NF at Z near 200-ohms (varies by device, ckt design, individual units). This why achieving low NF is difficult when device is used on real antennas vs ideal NF meter 50-ohm setups. But as I stated at beginning, HF receivers are designed with other parameters being more important (operating in a high RF environ, for example). My eme preamps try to detect signals at -155 to -160 dBm (K3+PR6 sens is about -145dBm @ 500-KHz bw (NF=4 dB), which is way more than needed on most HF bands (exception 10m and 6m, where sky noise begins to drop making preamp NF become more important). But local produced noise is still the limiting factor for most of us (and getting worse with more "wireless" devices encroaching our neighborhood). On 6m I see S5 noise with PR6 (21 dB gain) on my K3. With 6m antennas elevated above horizon s-meter drops to S3. 80m is S8 with preamp off. With 50-ohm term instead of antenna I see S0 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 for sale
I have a P3 with SVGA monitor board and TXMON board with the 2KW HF sensor for sale. $1200. I will bring to Hamvention. Contact me at k...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Antenna Quandary
Unbelievable answers (really). If someone asked if anyone was knowledgeable about contesting or say eme, would you just answer yes or no? Or would you offer assistance to the questioner? My first ham antenna was a folded dipole for 40m. It was described in my first ARRL Handbook as there were no nearby hams to ask and in 1958 there was no internet. TV twinlead was locally available so was easier to make than one requiring coax. I soldered a PL-259 directly the twinlead feedline and connected to my DX-35 (which loaded it FB even with high SWR that, at age 14, I was unaware of). For HF half-wave, center-fed, dipoles have been my favorite. Currently have a 80/40M inverted-V (fan-style). Wire lengths slightly longer for resonance than for horizontal dipole. Cut slightly longer than formula (492/F) and trim until SWR matched. I have ends supported with nylon cord over pulleys to lower for cutting. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Versed in dipoles
There definitely is Richard, KE0OG, the ARRL's new technical editor and columnist for QST, is very knowledgeable/expert in antennas and many other technical topics. He's produced a bunch of YouTube videos on antennas/dipoles/verticals both from a practical standpoint as well as technical. If you go to his website "Ask Dave" with your questions, you may find your question in QST magazine. GL/73 Ed __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PayPal holding payment. (Follow up)
I ran a business making kits and used PayPal with no issues (probably over 100 transactions). Even used PayPal credit to purchase a IC-9700, with no issues. I have an excellent credit rating. If you want to check someone's transaction quality, E-Bay collects buyer/seller ratings. Mine is 100%. Only time I had issues was with shipping being lost or delayed. Not a PayPal issue. Had one or two bogus vendors which PayPaal promptly refunded me. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Option Advice Wanted
I ordered the "kit" version when the first one's were offered (sn 475). I got everything except paddle (not a CW operator) or the battery charger (use either external battery or use it mobile/in shack). I did get the 2m module as 144 is IF of my mw transverters (1w drive level) where SSB is prime mode. Microwave* shots are typically from shore line or hill (mountain) top in semi-portable operation. I use it with the KXPA-100 for mobile, where I have 25w 2m booster to drive 150w amp. 80w on HF/6m is fine for mobile. I got options with thoughts of resale value (later on). 73, Ed - KL7UW *3400MHz & 10GHz __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/K3S Options Last time buy update
Thanks for the update, Eric. I hadn't gotten the the order list, when offered, but recent chatter on this list prompted to write to get me added on wait list (which I received confirmation from sales). I've had only one failure, the KI03A, which was repaired by Elecraft two years ago. I decided that I should get a backup so ordered a KIO3B. this is sensible since my twelve year old K3/10 will be used another ten years, hopefully. I have the K3/10, KX3+2m, and KXPA-100. All good stuff! I built my own QRO LDMOS amps for HF, 50, 144, 1296 from partial kits. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Service
Boy, a lot of comments on this topic. I'll try to brief: I bought my K3/10 in 2010. My primary use was for eme using transverters so I did not need 100w version. I did buy the KXV3 and TCXO-03, EXREF, and KRX3. Decided on the 8-pole filters (13, 2.8, 0.400 MHz in the main Rx and 2.8 in the sub-Rx). Main focus was the low phase-noise LO and superb CW performance (I had a FT-847 before which I ran 2m-eme, but HF was mediocre). The K3 fit my needs (as my forever radio). I acquired a KX3 plus 2m module and then the KXPA-100 (targeting portable/mobile use including as IF for mw operations). The KXPA-100 fit well with the K3/10 as a bonus. Only had one issue needing repair on the K3 and that was my KI03A apparently was hit blowing up a ferrite choke and IC. I could have upgraded to a KI03B but really did not need the USB I/F. Part availability and perhaps manpower issue delayed return for about three months (summer 2019). I could not operate digital eme modes without the board. Probably will not upgrade to a K4D, but sure looks nice. I', estimating maybe ten more years of ham radio (64-years as a ham, so far). One last solar cycle peak (first was 1958). Certainly many new SDR to chose from now days. Choosing a new rig is about what your needs and use are. A used K3 or K3s would not be a bad choice (if you want it fast). K4 is probably worth waiting for. Side note: just bought new John Deere lawn tractor/mower for $4K ($400/year payback). But my old Craftsman is 13 years old (and it wants to retire). Well I've been retired 13 years. 73, Ed - KL7UW 2022 projects: HF/6m 1200w MRF1k50 amplifier (kit) 2m-eme array/tower rebuild 16-foot dish rebuild 6-foot dish for 10-GHz eme Renovation of storage shed into ham shack/work shop just taking it easy this summer (and spending too much money) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Using MFJ-1026 Noise Canceller on 6m-eme
Chet, Your experience using noise sense antenna brings up something I am curious about; whether pointing noise antenna at same heading as signal antenna will have affect on cancelling ability. At present my 6m-eme yagis are pointed az=060 and noise sense antenna is fixed at az=130 (3-elem side mounted to a tower leg). If I find correlation with antenna headings, I might mount the noise antenna on the same mast as the eme array but 8-foot above them. With isolation relay in line the noise Rx will be offline in Tx. Also characteristics of the noise waveform may affect how well phase nulling works. I also see noise floor occasionally rise on 2m which is something switched on and then off (appliance of some sort). My house is clean except for the microwave oven. Still experimental; more results to follow. 73, Ed - KL7UW On 4/16/2022 4:26 PM, chetsubacco...@snet.net wrote: Thanks for the info Ed, quite appreciated. And, similar to what Lyn has stated, I have had mixed results using a Timewave ANC-4 on 6M. When the noise source was S7 from one direction about 2 miles away, I was able to use a low 3 el vert noise yagi to reduce it to S1-2. But when the noise was radiating from the powerlines right in front of my house with a broad azimuth, I could not do too well. 73, Chet, N8RA -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Lyn Norstad Sent: Saturday, April 16, 2022 5:12 PM To: 'Ed Cole' ; magic...@groups.io Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Using MFJ-1026 Noise Canceller on 6m-eme Interesting setup, Ed. I've used the MFJ-1026 in the past, but found that satisfactory (i.e.: meaningful) results were hard to come by when used in the recommended manner. Please keep us posted on your tests. 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ed Cole Sent: Friday, April 15, 2022 8:32 PM To: magic...@groups.io Cc: elecraft@mailman.qth.net Subject: [Elecraft] Using MFJ-1026 Noise Canceller on 6m-eme Diagram of final configuration: http://www.kl7uw.com/6M_NOISE_CANCEL.jpg This a basic phasing unit to reduce band noise on HF bands. But first I tried it on 6m where no null was achieved. Next I configured to use the 1st IF output of my dual-Rx Elecraft K3 running in Diversity mode which phase-locks both Rx to the main VFO. That involved using an outboard SDR to detect the 8.215 MHz IF signal and supply audio to my computer. Sensitivity was too low on the second Rx so required opening/inspecting cables inside the radio. I found the synth coax not seated well to the second Rx. Re-seating the connector fixed that. But I still had too low an audio level from the 8-MHz SDR to drive wsjt-x. A bit of research found the proper dialog box to adjust mic gain. Apparently the K3 line output is much higher than the SDR audio (LP-Pan2). Original design involved using an external preamp for the 6m noise antenna (3-element yagi) but I found I had adequate gain using the MFJ internal preamp set to gain=2 (out of 10). To add additional RF protection to the MFJ, I added a coax relay to disconnect the aux input of the MFJ. It does have a TR control line to give protection to the main Rx line, but none to the aux Rx input. My main Rx is fed by a preamp at the tower located behind a TR relay. I adjusted audio levels for main and aux inputs so wsjt-x read 36 on the audio bar meter for each. With both inputs it read 40. Placing the K3 into diversity mode I could null about 6-dB (reading dropped to 32/34. No idea if this is enough noise reduction for 6m where I regularly see S5 pointing NE toward MR, Pointing SE local noise often drops to S2/S3. One s-unit is 6-dB. Next is to test with actual eme signals. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to l...@lnainc.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to chetsubacco...@snet.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Using MFJ-1026 Noise Canceller on 6m-eme
Diagram of final configuration: http://www.kl7uw.com/6M_NOISE_CANCEL.jpg This a basic phasing unit to reduce band noise on HF bands. But first I tried it on 6m where no null was achieved. Next I configured to use the 1st IF output of my dual-Rx Elecraft K3 running in Diversity mode which phase-locks both Rx to the main VFO. That involved using an outboard SDR to detect the 8.215 MHz IF signal and supply audio to my computer. Sensitivity was too low on the second Rx so required opening/inspecting cables inside the radio. I found the synth coax not seated well to the second Rx. Re-seating the connector fixed that. But I still had too low an audio level from the 8-MHz SDR to drive wsjt-x. A bit of research found the proper dialog box to adjust mic gain. Apparently the K3 line output is much higher than the SDR audio (LP-Pan2). Original design involved using an external preamp for the 6m noise antenna (3-element yagi) but I found I had adequate gain using the MFJ internal preamp set to gain=2 (out of 10). To add additional RF protection to the MFJ, I added a coax relay to disconnect the aux input of the MFJ. It does have a TR control line to give protection to the main Rx line, but none to the aux Rx input. My main Rx is fed by a preamp at the tower located behind a TR relay. I adjusted audio levels for main and aux inputs so wsjt-x read 36 on the audio bar meter for each. With both inputs it read 40. Placing the K3 into diversity mode I could null about 6-dB (reading dropped to 32/34. No idea if this is enough noise reduction for 6m where I regularly see S5 pointing NE toward MR, Pointing SE local noise often drops to S2/S3. One s-unit is 6-dB. Next is to test with actual eme signals. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Shipping via UPS - A Lesson Learned the Hard Way
Most be glad you are not shipping in/out of AK. UPS/FedEx rates are double (or more) than USPS. If it will fit a USPS Flat-rate box that is even less. That is for 3-day delivery which can take up to five days. UPS/Fedex 2-day is also 3-days (because delivery is to the Anchorage Int'l Airport Office and then trucked to my address 150-miles away the next day. UPS/FedEx delivery is M-F (no weekends) and is the "drop and scoot" delivery (too lazy to push the door bell). I always make a point to be home and watch for their truck. USPS is kept at the PO for my pickup (they have door locks and security); M-St access. Most of the time if a vendor says "UPS only" or "FedEx only", I find another vendor to spend my dollars with. Also like free delivery (except not to AK or HI). And they ship by USPS (duh). Or "spend more than $xxx and shipping is free (except to AK or HI). Now I can see this if its multi-hundred pound item on a pallet, but for a package with a few semiconductors (greedy B*sturds). USPS insures but it may take up to six months to receive it. Better keep a copy of your shipping label. Click-n-ship keeps a record for you up to a year when you have an account (which is free). Now back to Elecraft stuff! Ed - KL7UW I ran a Int'l business out of my home (WA2ODO Preamps; Kits by KL7UW) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Shipping via UPS - A Lesson Learned the Hard Way
Anyone can register for a UPS account on their website. Then, use their shipping page to generate the package label, paid by credit card. Affix the label using clear packing tape and take to any UPS drop-off point, including any UPS Store. We've been doing this for 20 years and the rates are discounted from the UPS regular retail pricing. 73,Ed W0YK Original message From: Mike Fatchett Date: 4/11/22 15:42 (GMT-08:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Shipping via UPS - A Lesson Learned the Hard Way They are franchise type stores and the rates are ridiculous. My son worked at one for about a year. At least they gave you the honest answer and were able to handle at an actual UPS shipping location. The shipping rates are higher too.W0MUOn 4/11/2022 4:29 PM, eda...@aya.yale.edu wrote:> I just shipped some of my Elecraft gear to someone who had purchased it from> me. The agreement was that I would ship it and they would bear the shipping> expense. The buyer was OK with my using UPS.>> >> So I packed it up and took it to "The UPS Store." There are about 30 of> them in the Denver metro area and about a dozen in the city itself. Before> taking the package there I looked at UPS on-line to see what insurance would> cost. The UPS site said $1.05 per hundred dollars in excess of the $100> included in the shipping rate. When I arrived at the UPS Store they charged> me $4.50 per $100. That difference times the value of what I was shipping> came to well over $100. When I questioned it (more accurately, when I> complained about it) they told me that UPS and The UPS Store are different> entities. The latter, they said, is a network of franchises independent of> the real UPS that "works with" UPS for retail shipping and receiving. So> what I had seen on the UPS website was what UPS charges, not the grossly> inflated premium The UPS Store charges. OK, I asked, how can I ship this> via UPS itself? The answer was a 90 minute round-trip drive to the nearest> real UPS terminal.>> >> The UPS Store does not charge real UPS rates. They have UPS in their name.> They use a logo indistinguishable from the UPS logo. Their counter clerks> wear UPS Brown. There was a standar UPS truck parked in front of the shop.> There was NOTHING visible to me in the store that indicated it wasn't a UPS> shop. Maybe everyone on this reflector already knows about this. Until> this morning I didn't.>> >> There's an old maxim that a happy customer tells one other person about> their experience. An unhappy customer tells ten other people.>> >> Ted, KN1CBR>> >> __> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net>> This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> Message delivered to w...@w0mu.com-- Mike W0MU__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: KWM-380
Mine went back to the factory and was returned with no trouble found.73,Ed W0YK Original message From: "James F. Boehner, MD via Elecraft" Date: 4/3/22 07:55 (GMT-08:00) To: 'Bill Tippett' , 'Elecraft Reflector' Subject: [Elecraft] OT: KWM-380 I'm sorry you had so much trouble with your KWM-380. My experience is quitethe opposite. I did send mine to be completely refurbished and calibratedand it is easily the quality of my KWM-2A and more. Techs who work on theKWM-380 are listed on the Collins Collectors Association website. I usedBob Struk KX6K.Sorry about the off-topic post.'73 de JIM N2ZZ-Original Message-From: elecraft-boun...@mailman.qth.net OnBehalf Of Bill TippettSent: Sunday, April 3, 2022 6:12 AMTo: Elecraft Reflector Subject: [Elecraft] KWM-380 (was K4 and Delivery Delays)W0YK wrote:The KWM-380 may have been a "hot radio" in some people's minds, but I canpersonally attest to the opposite. I have one, along with a number ofKWM-2As and S-Lines. The 380 is a horrible performer. The receiver isincredibly noisy, obstructing reception of all but the loudest signals.The audio is distorted and filtering is poor. Collins' last hurrah was adud.Hi Ed,I don't recall ever telling you this but your 380 also had horrible TX phasenoise. In the early 80s, we were located within 5 miles of each other in CO,both running amps. Whenever you transmitted on 80 or 160, the phase noisewould cover the entire CW bands. I don't recall what you replaced the380 with but I was a very happy camper when you did!I take pride that my KSYN3A-updated K3 is still one of the cleanest CWsignals on the bands.73, Bill W4ZV (ex-W0ZV)__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html Messagedelivered to jboehne...@yahoo.com __Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KWM-380 (was K4 and Delivery Delays)
I'm not surprised. The receiver is chock full of internally generated birdies. On a dead band, a bandscope looks like a major contest!73,Ed W0YK Original message From: Bill Tippett Date: 4/3/22 03:12 (GMT-08:00) To: Elecraft Reflector Cc: e...@w0yk.com Subject: KWM-380 (was [Elecraft] K4 and Delivery Delays) W0YK wrote:The KWM-380 may have been a "hot radio" in some people's minds, but I can personally attest to the opposite. I have one, along with a number of KWM-2As and S-Lines. The 380 is a horrible performer. The receiver is incredibly noisy, obstructing reception of all but the loudest signals. The audio is distorted and filtering is poor. Collins' last hurrah was a dud.Hi Ed, I don't recall ever telling you this but your 380 also had horrible TX phase noise. In the early 80s, we were located within 5 miles of each other in CO, both running amps. Whenever you transmitted on 80 or 160, the phase noise would cover the entire CW bands. I don't recall what you replaced the 380 with but I was a very happy camper when you did!I take pride that my KSYN3A-updated K3 is still one of the cleanest CW signals on the bands.73, Bill W4ZV (ex-W0ZV) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 215, Issue 15
Thanks Bob, My late night calculating in my head was off by factor of ten 5ppm at 10-MHz is +/- 50Hz and at 30-MHz 150-Hz And I forgot that the TCXO-03 actually performed at 0.5ppm so one got ten times better stability suing the TCXO-03. I reviewed my actual notes for testing with the TCXO-03 + EXREF stabilized by an OCXO at 10-MHz having +/-5 E-12 short term stability. I have a K3/10 so power output was set to 10w for the tests. I measured 28 MHz with -1.5 Hz offset, and 50-MHz with -2.5 Hz offset, tests repeated the next day within 1-Hz. Measurements per my EIP-538 frequency meter which was externally locked to a Rubidium source of +/-5 E-11. [I was a beta tester on the EXREF] That effectively brings the K3 down to .05ppm. On 28-MHz I figure I'm within 2-Hz which is great for running VHF/UHF transverters that can add up to 10-Hz drift running modes like FT8 or JT65. On 2m using my K3 with 25w transverter, I see total upward drift of 7-Hz after running 30-minutes of JT-65. One wants to limit max drift to 20-Hz running digital modes. At 432 and 1296 my transverters have PLL local oscillators so only drift is from the K3. Note I run the K3 transverter I/F at 1mw so there is virtually no heating inside the K3 to cause drift. Running a K3 with 100w might yield different results. My understanding is that the K4 has the EXREF as standard, if one wants to use an external frequency standard (correct me if that is not true). 73, Ed - KL7UW On 3/31/2022 3:35 PM, elecraft-requ...@mailman.qth.net wrote: From: Bob McGraw To:elecraft@mailman.qth.net Subject: [Elecraft] TCXO Message-ID:<4b5a4813-135d-f484-171d-be99a71a3...@benlomand.net> Content-Type: text/plain; charset=UTF-8; format=flowed The TCXO is the reference frequency for about everything that takes place in the radio.? It is the master clock.? If it is incorrect, then everything else is incorrect, for the most part. A 5 ppm TCXO, or 5 parts per million, can have an error of ±250 Hz on 6 meters.?? Where as a 0.5 ppm TCXO can have an error of 25 Hz on 6 meters.?? It just depends on how accurate and stable you desire your radio to be. Oh, the frequency read-out on the front is just that, a read out.? It is not a frequency measurement of the exact frequency. Many will put their radio on 14.255.000 and swear it is on that frequency.? But with a 5 ppm TCXO it could be ± 71 Hz.? Where as with a 0.5 ppm it would be ± 7 Hz.? Of course one must consider crystal and component ageing and perform very easy calibration procedure at regular intervals.? I check and adjust mine once a month and can maintain ± 2 Hz or or better. I ordered mine with the 1 ppm TCXO with F/W corrected to 0.5 ppm. 73 Bob, K4TAX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] TCXO
To add a little to what Lance-W7GJ said: Every K3 has a TCXO. Standard is the TCXO-01 with 5ppm stability which fine if you only run CW/SSB/AM/FM. TCXO stands for Temperature Controled Xtal Oscillator. I provides the frequency standard for the K3 synthesizers to lock to. 5ppm translates as 5*10^-6 or on 10-MHz frequency is within 5-Hz; 30-MHz its 15-Hz. TCXO-03 improves this to 1ppm: 1-Hz at 10-MHz; 3-Hz at 30-MHz If you buy the TCXO-03 option and add the K3EXREF board this improves to 2-Hz at 30-MHz. The EXREF compares the TCXO with a high standard 10-MHz reference oscillator like an OCXO or GPSDO. When the TCXO drifts off frequency the EXREF corrects that about every 4-seconds. High frequency stability is needed when running certain digital modes such as FT8. Also, useful if your K3 is driving a VHF/UHF/mw transverter. 73, Ed - KL7UW Date: Wed, 30 Mar 2022 07:44:49 -0500 From: rikoski To: elecraft@mailman.qth.net Cc: Richard Rikoski Subject: [Elecraft] TCXO Message-ID: <11ce6286-6d21-47fd-9734-4b1646d35...@rikoski.com> Content-Type: text/plain; charset=us-ascii What are the uses for the TCXO option in a K3? Why would I want one? Thanks, 73 W9ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 and Delivery Delays
The KWM-380 may have been a "hot radio" in some people's minds, but I can personally attest to the opposite. I have one, along with a number of KWM-2As and S-Lines. The 380 is a horrible performer. The receiver is incredibly noisy, obstructing reception of all but the loudest signals. The audio is distorted and filtering is poor. Collins' last hurrah was a dud.73,Ed W0YK Original message From: Fred Jensen Date: 3/30/22 18:40 (GMT-08:00) To: Scott Manthe Cc: Elecraft List Subject: Re: [Elecraft] K4 and Delivery Delays There's not a lot on the web re: KWM-380 except for sales. I recall little about it except that it was very expensive for the time. I think the KWM-2 went for about $1,500 new? in the 60's, that would be about $15,000 in today's money, although it wouldn't be an attractive transceiver in today' world. But, a -380 was a pretty hot radio in those days.73,Fred ["Skip"] K6DGWSparks NV DM09dnWashoe CountyScott Manthe wrote on 3/30/2022 3:53 PM:> Back in the late 70s or early 80's, when I was a teenager and a > "lowly" Technician, one of my teenager Technician friends won a > KWM-380 at the Cedar Rapids hamfest. The old-timers were not amused. > I'd have preferred to win the radio, but barring that, seeing the > reaction of those old guys to a teenager Tech winning that KWM-380 was > pretty priceless. Of course, now I am one of those old guys...>> 73,> Scott N9AA-- This email has been checked for viruses by AVG.https://www.avg.com__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 drive level for Q5 Signal 432 Transverter
Tried what you suggested Gary. No joy. The upper limit with the PWR knob remains at 0.8MW. I can adjust downward but not upward. Need to get a good power meter on it and see what the actual output is. And, I?ll try the low-level power calibration process and see what happens. Thanks again. Any others have any suggestions? David, NS4V For accurate measurement of power at 1mw, the HP-432A Power Meter is excellent. But probably Tried what you suggested Gary. No joy. The upper limit with the PWR knob remains at 0.8MW. I can adjust downward but not upward. Need to get a good power meter on it and see what the actual output is. And, I?ll try the low-level power calibration process and see what happens. Thanks again. Any others have any suggestions? David, NS4V -- For measuring mw level RF, the HP-432A Microwave Power Meter is excellent and reads up to 10-GHz, which probably not needed by most who read this reflector. They sell used at about $150, but the power sensor and cord are hardest to find. For most reading RF voltage across a 50-ohm dummy load with an oscilloscope is good. Read the peak voltage and calculate the rms voltage. Vrms = 0.7071*Vpk. Power = Vrms^2/50. Scope needs to be rated for the frequency being measured. One other note: I have found my K3 will drop power if the load is not low SWR. Could the input impedance of the Q5 not be 50-ohms? I assume the input is similar to the DEMI 432 transverter with a choice of high power (up to 10w) or low power (down to -20mw). There is a mini-pot for adjusting Tx drive on the pcb. The Q5 manual should have installation and tune-up instructions that mention input power requirements and drive adjustment. Probably a call to Elecraft Service might help. 73, ED - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] D-104 Mic Element Replacement
I remember the D104's from my early years in Ham radio. I never had a mic for my DX35 in the late 1950's and acquired a carbon mic with the old AN-ARC-1 VHF AM radio I bought for 2m AM as a Tech. I upgraded to a Johnson 6N2 after college so bought a new Electro-voice mic that had cardiode pattern for noise reduction. It was shaped like a long silver tube and I got a desk stand for it. It was a broadcast mic so made fine quality AM on 2m with my plate modulated 5894 at 150w. All that gear is gone, now. Most of my station is now Elecraft. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Multi-Device mouse and keyboard
I use a Logitech M590 mouse with my K4 and laptop. The laptop is via Bluetooth and the K4 uses the USB dongle. Works great. Ĺ reply to: k...@arrl.net On Tue, Feb 22, 2022, 15:28 Bill Ham wrote: > I am trying to get a Logitech K780 keyboard and M585 to work with a Win 10 > PC and my new 0594 K4. I can only get the Mouse to work on both if I use > one Unifying RCVR/Dongle in the K4 and another in the PC. The Mouse will > toggle between the devices. I can get the Kybd working on either the PC or > the K4, but not both. > > Any suggestions would be greatly appreciated. > > Tnx & 73, > Bill - K0KO > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 with PX3 Panadapter
Has anyone tried using a PX3 with the K3 transceiver? Seems like running the IF through an LP-PAN, and then connecting the I/Q output of the LP-PAN to the PX3 would work. --Ed, N3CW— -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 wattmeter adjustment
I would guess most RF power meters are lucky to be within 5% accuracy of full scale. As a comm tech in the 2-way commercial industry, the Bird43 is pretty much a standard field instrument for measuring power and reflected power (to check SWR on cables, antennas, filters, etc.). If you want higher precision measuring ac voltage across an accurate 50-ohm termination is the better choice. The ac voltmeter is your scope and its accuracy depends on the frequency range its built for. For fairly low power you can get quite accurate RF loads. I keep a couple for doing comparison checks with my Bird (have two of them). Since I do ham radio up to 10-GHz the Bird and most ham SWR meters are useless. I have a surplus HP432A microwave power meter for that. Its not calibrated (recently). I have several directional couplers for measuring reflected power. A couple are rated to nearly 1000w for the 900-MHz mobile phone market. I checked directional and coupling factors using the HP432A at 1296 and those are installed on output of my 600w 1296 amp for continuous monitoring forward and reflected power. I use a small pcb with shottky diode detectors to provide indication on a ma meter. I record the dc voltage derived with RF power measured by the HP432A. Milliammeter is then set with a precision bench PS at the observed voltage from the detector. They will get checked often with one of the Birds for a quick test. The Birds will be calibrated with the HP432A using attenuators to bring level down to 1mw. I only have a 150MHz scope at present so can't really use it for RF calibrations at mw frequencies but the HP432A can be compared at HF or VHF. So probably most hams are not going to send their RF power meters out for calibration. But there probably are 1% who might. Solution would be for them to offer to test meters for other hams at a nominal fee (or even for free) if two-way shipping is paid for. That is done by a few microwave hams for others. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 Remote Software Question
Thanks Ken. I could easily be mis-remembering! --Ed, N3CW— Sent from Mail for Windows From: Ken K6MR Sent: Sunday, January 30, 2022 7:28 PM To: Ed G; elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA1500 Remote Software Question I don't remember the slider ever moving in response to the fan speed while in Auto mode. The current fan level is noted in the lower info bar by a number (1 - 5), but that's it. Ken K6MR From: elecraft-boun...@mailman.qth.net on behalf of Ed G Sent: Sunday, January 30, 2022 1:29 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KPA1500 Remote Software Question Folks, Using the KPA1500 remote program. There is a slider control for the fan just below the temp bargraph. I can manually adjust the slider to give me different fan speeds, so the control is communication with the KPA1500. I seem to remember when I first installed the remote software that the slider position responded to the KPA1500’s automatic fan speed. I could look at the position of the slider and know (while wearing headphones) what the fan speed was. But that no longer seems to be working, and the blue slider remains at the far left position even when the amp fans are running. So I’m not quite sure how this slider is supposed to work. If I set min fan speed in the KPA1500 menu to “1” the slider position will move to “1” It just doesn’t move when the fan is set to “auto” and comes on by itself. --Ed, N3CW— -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KPA1500 Remote Software Question
Folks, Using the KPA1500 remote program. There is a slider control for the fan just below the temp bargraph. I can manually adjust the slider to give me different fan speeds, so the control is communication with the KPA1500. I seem to remember when I first installed the remote software that the slider position responded to the KPA1500’s automatic fan speed. I could look at the position of the slider and know (while wearing headphones) what the fan speed was. But that no longer seems to be working, and the blue slider remains at the far left position even when the amp fans are running. So I’m not quite sure how this slider is supposed to work. If I set min fan speed in the KPA1500 menu to “1” the slider position will move to “1” It just doesn’t move when the fan is set to “auto” and comes on by itself. --Ed, N3CW— -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Unassembled K2 Vs Assembled Marketability
Too late folks I've already bought and paid for it. Hi Hi.. Ed.. AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of George Thornton Sent: Friday, January 28, 2022 3:41 PM To: eda...@aya.yale.edu; elecraft@mailman.qth.net Subject: Re: [Elecraft] Unassembled K2 Vs Assembled Marketability As a former K2 owner I can say at least half the fun of one of these was to build it myself. This is one of the last kinds of major kits that involve assembling all the components onto a circuit board. Today with all the surface mount devices the technical challenge is too much for most of us and kits largely become a mechanical assembly of already completed circuit boards. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of eda...@aya.yale.edu Sent: Friday, January 28, 2022 1:35 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Unassembled K2 Vs Assembled Marketability I don't know the answer to the question though I agree with someone else who said they are different commodities. However, in the long run an unopened kit may be worth a small fortune, like some unopened games and Barbie dolls are. The K2 deliveries are presently TBD . . . I have one (my fifth) on order and no ESD is posted. I assume it's a parts problem. The K2 has already had a number of small component modifications made as the traditional parts have become unobtainable or uneconomic. If it were possible to place an order for the final five S/Ns, whenever that happens, I'd pay for them today. What say, Wayne -- will you make me that deal? Ted, KN1CBR Message: 18 Date: Fri, 28 Jan 2022 10:23:45 -0500 From: KJ To: elecraft@mailman.qth.net Subject: [Elecraft] Unassembled K2 Vs Assembled Marketability Message-ID: <4f2b806a-73f8-4d97-9dd5-3af7ecc6a...@gmail.com> Content-Type: text/plain; charset=us-ascii Hello all, Does anyone have experience as far as which is more marketable? Assembled or unassembled? Is there a price difference in posting either for sale? Thanks! Ken, W2GIW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to gthorn...@thorntonmostullaw.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4D Data Connector for KPOD
USB cable. reply to: k...@arrl.net On Thu, Jan 20, 2022, 11:59 Ray Spreadbury via Elecraft < elecraft@mailman.qth.net> wrote: > Where is this Data Connector located on the K4 ? > The KPOD documentation only refers to the K3 & K3S and is not updated for > the K4 > 73 Ray G3XLG > > Sent from Mail for Windows > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1ep.l...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] On ground - in ground radials
I used three radials (70-foot long) made of 2-foot wide chicken wire (think its galvanized steel) on my 600m inverted-L. Fourth radial was the shield of my 1-5/8 inch diameter Heliax line that ran 120-feet from the supporting tower to the shack in our house. I ran a circle of bare No. 12 copper thhn around the base of the tower to connect the chicken wire radials (soldered). That was also attached to a 10-foot copper ground rod as was the Heliax shield. Inverted-L was 43 foot high by 122-foot long and base loaded with a large coil made of No. 12 thhn (10-inch diam by 11-inch long windings spaced 1/4-inch). Base coil was grounded. I measured Z=20 + j0 using a modified MFJ-269 inserted on the ground end of the coil. Radiation resistance calculated by EZNEC = 0.8 ohm with about 4% efficiency. I run 100w on 600m so ERP was about 4w. I've previously written about the new antenna: http://www.kl7uw.com/630m.htm I will use Bob's staple method on radials for my new "T" antenna. 73, Ed - KL7UW I had to roll up the chicken wire to mow. Used concrete blocks to hold it down in several spots. Date: Mon, 17 Jan 2022 09:22:33 -0700 From: Mike Fatchett To: elecraft@mailman.qth.net Subject: Re: [Elecraft] On ground - in ground radials Message-ID: <7ecd295a-25fd-51ad-af9c-86f034849...@w0mu.com> Content-Type: text/plain; charset=UTF-8; format=flowed A well known 9 lander lid uses chicken wire for his 160 antenna and it works very very well.? I am not sure what effect crossing the wires has.? Has anyone done any real testing of this or is it just theory or a wives tale?? Did he stumble upon the holy grail of radials? Most of the results of the radial field are from the first 50 percent or so.? You do not necessarily have to have 66 ft radials on 80m to work and get out.? Put out as many as you can as long as you can and shorter radials are fine too. W0MU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Clickable P3 Desktop Window
Hello, To follow up on a recent posting asking about the P3 video display as a dedicated display within Windows, I have been testing one solution which gives me a scalable, moveable P3 display. It is necessary to have the SVGA P3 option installed. I use a small VGA to HDMI converter which then connects to an HDMI video capture card. 1. VGA to HDMI converter https://www.amazon.com/dp/B078NVJVVB?psc=1=ppx_yo2_dt_b_product_details 2. HDMI to USB video capture card https://www.amazon.com/dp/B088HBRM7T?psc=1=ppx_yo2_dt_b_product_details The video capture card was suggested by Max NG7M on the K4 users group as a way to display the K4 spectrum within Windows, and it works well in this K3/P3 application. The USB video from the capture card can be used as an input to the Windows Camera app; the app also allows you to take snapshots or record video of the P3 video display. So now if I run the K3 remotely, and use one of the various remote desktop-type programs to connect to the host computer, I can see the P3 display on the remote’s screen display. A photo of the P3 display using the Windows camera app is here: https://drive.google.com/file/d/1mv4AuX5PVo3cGWz8cZY6KmlmyOct5wTn/view?usp=sharing For those using WIN4K3, another useful option is to run the USB P3 video to the P3 window within WIN4K3. Selecting a marker allows you to click on the spectrum display to tune the K3. This pic shows what that looks like. https://drive.google.com/file/d/1wZ5DTlYBON-ZoZfHj8VWp9K-kdJPyHX-/view?usp=sharing Ed, N3CW -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] On ground - in ground radials
With regard to installing radials on the ground: I used a weed whacker configured as an edge trimmer to make a cut through the grass. Feed the radial wire in the slit and use staples as Bob suggests to secure the wire. In a month or so, the grass grows over the wire and poses no problem mowing. 73 de Ed On Sun, Jan 16, 2022 at 8:24 PM Bob McGraw wrote: > I made a handful of staples using some scrap solid wire. #10, #12, #14 > works great and no need to remove the insulation. Make them about 4" > long per side, and place them over the radial, pushing them into the > ground. I agree, cut the grass short, pull the radial tight and "staple > it to the ground". > > I don't care for nails, or the likely hood of such, in my lawn tractor > tires. > > 73 > > Bob, K4TAX > > > > On 1/16/2022 11:40 AM, elecraft-requ...@mailman.qth.net wrote: > > Message: 9 > > Date: Sun, 16 Jan 2022 11:20:11 -0500 > > From: Tom & Barb Valosin > > To:elecraft@mailman.qth.net > > Subject: Re: [Elecraft] On ground - in ground radials > > Message-ID:<8d6b4b1b-cd91-59ba-c485-0f49b0d5a...@midtel.net> > > Content-Type: text/plain; charset=UTF-8; format=flowed > > > > Now in my mid seventies I have embraced the idea of conservation of > > energy. Digging in radials does not interest me. Likewise, catching them > > in lawn equipment is also a PIA. So, here is what I have done and it has > > worked well. I trim the grass.? Then I use a length of string and > > stretch it out along the path of the future radial. Next I take a > > "weed-wacker" and shorten the grass a bit more. Now I use any old > > available can of spray paint and spray a few marks along the length of > > the string. Remember to roll up the string now - no longer needed. Then > > I take my radial wire, make the connection at the antenna base and > > stretch the wire out along the marked path. Depending of the > > levelness/evenness of the surface I then take a nail and make one wrap > > of the radial around the nail, tighten the wire so it is straight with > > no loops and insert the nail into the dirt. Do this along the length of > > the radial. Typically I do it about every 10 to 15 feet. In a couple of > > days the grass grows and the wire is so low (deeply embedded) in the > > grass that mowing will not be an issue. The entire radial system need > > not be done at one time and it is easy to add radials if you wish. HINT > > - get a grandchild to help, or a neighborhood youngster or a person > > working toward their license or one of the younger club members or . > > anyone but yourself. Remember however to compensate them for their time > > and effort! > > > > Tom, WB2KLD > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2te@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [OT] Loss in window line [OPINION] [LONG]
Good discussion as I was thinking to use window line in my new 630m - 40m antenna. Maybe revert to running parallel lines spaced 1-foot with spreaders only at top and bottom of 40-foot vertical run. I did that with my previous inverted-L with no weather related issues. Impedance did shift between summer (unfrozen soil) and winter (frozen) which was easily compensated by a change in loading coil tap. Radials were lying on ground vs in-ground or suspended above ground. New radial field will be planted in the soil a couple inches (so I can mow the lawn without rolling up the radials each time). 73, Ed - KL7UW recent "fun" getting FL-digi to work with my K3. Date: Fri, 14 Jan 2022 13:21:50 -0800 From: Fred Jensen To: Bob McGraw Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft Digest, Vol 213, Issue 6 Message-ID: <09a385cb-07b4-29f8-0c64-464705bda...@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed My experience as well.? No real change in loss but the complex impedance at the TX end does change enough to require a re-tune.? It used to be so much simpler when the tank circuit on the PA served as both a matching network and harmonic filter. ? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WTB: Original K2 Main Tuning Knob
Looking for an original main tuning knob for the K2. --Ed, N3CW— Sent from Mail for Windows -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 VGA Video Capture Card
Hello, I am investigating ways to be able to see P3 video when linking to a local computer via a remote desktop type of program. The local computer would be controlling a K3 using Win4K3 and I would like to also be able to see the P3 video. So I am considering a VGA capture card to allow the P3 video to be displayed on the local monitor. One card I looked at: https://www.amazon.com/Capture-Streaming-Teaching-Conference-Broadcasting/dp/B08GYXZC3D Is anyone on the list doing something similar? Looking for comments and/or suggestions; thanks! --Ed, N3CW— Sent from Mail for Windows -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Output power being eaten
There are situations when running a driver at it full output is desirable. Or when running at very low output is not as stable. Two examples: I have a 6-dB 30w attenuator on the input of my 2m 1500w LDMOS Amp (MRF1K50H) which ensures that my 25w transverter will not overdrive the amp. The attenuator is a small board with high power resistors obtained from W6PQL: http://www.kl7uw.com/2M_W6PQL_1500W_PA.jpg My 600w 1296 amp requires 10w drive and is 100-foot from the transverter. The LMR600 line loss is 6-dB so I use a 3-dB chip attenuator to get a stable 1.5w drive into the 10w driver at the amp: http://www.kl7uw.com/23cm_driver_1.jpg That allows me to run my transverter at 12w in the shack (max output is 18w). Of course I am using a K3 with KXV3 to drive to my transverter (no overshoot). No external ALC for the K3. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/10 connected to KXPA100/KXTA100
Operation of the the KXPA100 with its tuner works great with my KX3 using the KXUSB cable (particularly nice when KX3 is mounted on my truck dash and amp is under the back seat. But I also use the amp/tuner with my K3/10 (low power version) which has no KXUSB jack. I just connect PTT to the amp. Works great and tuner tunes well. But when I change bands the amp/tuner seems confused. Doesn't change antenna connections or tuner settings when I transmit using the XMIT/TUNE button on the K3. I've found thru trial-n-error that cycling the amp power off/on seems to then do the changes needed and it tunes well (remembers pre-tuned freqs.) I'm guessing the KXAT100 detects frequency change but does not activate the tuner settings until I reset it with the power cycling. Just curious if this is normal behavior? My setup: ANT1: connects to 6m antenna (BYP) or triband HF yagi (MAN) ANT2: connects to 80m dipole (BYP) K3-->KXPA100 ANT1-->ant switch-->6m yagi or HF tribander ANT2-->80m dipole If switching from 6m to tribander I switch the ant switch before transmitting. Usually I manually change ANT1 to ANT2 by Press/hold TUNE on the amp if switching to 80m. Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] PR6-10 Tests
I imagine there are many who have the PR6 or PR6-10 for their K3. Recently I had to replace the PGA-103 in mine so took the time to measure NF and gain at 50-MHz. NF = 0.78 dB Gain = 21.15 dB Voltage at input leg=0.6v Voltage at output leg=2.5v 80ma at 13.5vdc That's pretty good with switching relays in-line (typ. 0.7 dBNF, 20 dB gain) HP8970B NF meter with Maury MT7618L noise diode. Using a new WA2ODO 2m preamp as calibration source the NF measurement was within 0.01 dB of that measured by WA2ODO with laboratory calibrated equipment. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Best Portable Wire
Well Rich, Guess you are a late comer. I got my ham license at age 14 and I am now 77. I've been married 18 years. She was married to ham before me, so had been "broke-in" before getting "saddled" with me (western sayin). That was the good news and the bad news. When she arrived north to live with me, I already had a 50-foot tower up and 8-foot dish inside a "golfball" radome. She wanted a nicer home but knew there were two requirements: room for my 13 sled dogs and room for my antennas (and ham shack). Now I have four towers and a 16-foot dish. All the sled dogs have passed onto "dog heaven" and only have one house dog which is hers. She knows the money goes into ham stuff and not beers at the local pub (plus skirt chasing). And she is even the NA sales rep for Dubus Magazine (which she gets a little 'pin' money from). Dubus is published in Germany and is VHF/mw ham technical magazine + European VHF activity news. She even has accompanied me to ham conferences. She is not a ham. But she is a good one and I'm keeping her! 73, Ed - KL7UW, ex-AL7EB, ex-K8MWA From: Rich WC3T To: Wayne Burdick Cc: Elecraft Reflector Subject: Re: [Elecraft] High bands open Message-ID: Content-Type: text/plain; charset=utf-8 I?ve been married for 38 years. I?ve been a ham since 2015. Gotta pick my battles. 72, Rich Hurd / WC3T / DMR: 3142737 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] ?ELECRAFT NVIS field day?
Thanks to Bill Parsons-AF6AE for the tip on the QST December-2005 article. Pulled it out and scanned it over (will read more thoroughly later) but interestingly showed how 80/40m coverage varied by time of day (which was demonstrated real-time in the 1980's on the Iditarod trail working into Anchorage). At home I only use those bands infrequently and mostly to talk out a few hundred miles in Alaska. Somewhere I read that a 40-foot high inverted-V would work well. I have a 50-foot tower mounted to end of my house with Hygain TH3mk4 tribander at tower top so hung my 80/40m fan dipole at the 40-foot level with end tapering down to 20-foot on one end and 15-foot on the other. Its hung on a line NW to SE but that seems to work out 400 miles just fine. I am going to re-hang that antenna next summer with 80m wire at right angle to 40m wire as the fan-style 40m tuning was affected by proximity of the 80m wire. As I have written previously, I will also run this as a top-hat loaded vertical on 160m/630m by shorting the 40-foot high feedline. I check into a weekly net on Saturdays (11am local time) on 3920 KHz. NC is about 70 miles south in Homer, AK (KL7PM) and consistently comes in at 30-40 dB over S9. He does run about 400w. I get at least S9 reports from him with my 100w and I hear other stations out as far north as Fairbanks (400 miles) pretty well. Band noise runs S7 (K3 PRE Off). 3920 is designated emergency channel for AK and often activated after an earthquake for tsunami watch. Ed-KL7UW K3/10+KXPA100 on HF/6m under construction is 3w/1200w W6PQL MRF1K50H amp __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 "low audio" problem fixed
Great news, Wayne. The Saturday lifestyle pays off!73,Ed W0YK Original message From: Wayne Burdick Date: 12/18/21 23:51 (GMT-08:00) To: Elecraft Reflector Subject: [Elecraft] K4 "low audio" problem fixed We traced this (on Saturday, because it's not just a job, it's a lifestyle :) to incorrect AF gain scaling with some combinations of AGC threshold and slope. The fix should be in the next beta release, possibly as early as this coming week.Prior to this fix, as some K4 users observed, the max AF you could get into a 4 ohm speaker with AGC threshold = 4 and slope = 15 with an S9 signal was about 150 mW. Now it's in excess of 1.5 W with any combination of AGC settings. Into an 8 ohm speaker it's about 1 W, meeting the proposed criteria. The upshot is that even with the lowest threshold setting--the one that levels the audio most aggressively--you won't be lacking for AF output at the speaker, phones, or line out.We'll be updating the spec as well. It should have used 1 W as the reference level rather than 2 W.A quick update on another request: we're adding new narrow CW filters with much steeper skirts. This will apply to filter settings of 200 Hz and narrower. You be able to select the original narrow filter shape using a menu entry, if desired. 73,WayneN6KR__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] ?ELECRAFT NVIS field day?
Just a comment on low dipoles: On the Iditarod Dog Sled Race (Alaska) we had ham stations located in remote located checkpoints (total bush-no telephone or other utilities). We used 80m and 40m to communicate with race HQ in Anchorage over paths of a couple hundred miles to 600 miles, or so. 80m worked well at night and 40m during the daytime. Since one packed their station in a couple boxes to be hauled in small airplanes to these remote locations, antenna was a simple 80m wire dipole with clip-out sections to convert to 40m. Usually antennas got strung from trees or buildings only high as one could reach or maybe using a stepladder. They were NVIS by definition. I recall some hung only 8 to 12 foot high, yet they worked fine with 100w. Not every station could reach HQ so quite a bit of relaying race traffic was done (reporting times in/out of checkpoints). The race extends 1100 miles over a 8 to 20-day period as the dog teams varied in speed. Ham radio is no longer used as the officials went to using sat-phones. But I was lucky to go out eight years on the trail as ham operator in the 1980's. Used barefoot TS-180S and dipole (plus 600w Honda Gen). You never lived until you slept in a wall tent at -60F outside (and -15F inside the tent). Radio worked but LCD display took a little time to start when cold. 73, Ed - KL7UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Any new info on K3/K3S updates availability?
I was told by Madelyn on 10-22-2021 4-6 months. The problem is getting parts. I paid for mine! . Ed W0SD On 11/30/2021 8:21 AM, Pete Smith N4ZR wrote: I'm still hoping for a KIO3BUPKT for my K-3, but nothing heard since, I think, September - still TBD on the web site. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Common Mode chokes to reduce noise
OK, kind of what I was thinking. So either go on search for noise source or try reducing the noise at the receiver. K3 NB does not improve SNR on 6m. On HF noise varies: 80m its S7 from an inverted-V; on 20m its S3 from a yagi (both have baluns). 6m noise at S5-S7 is the most troublesome because I do weak-signal operating (eme, ms, FT8). InnovAntenna 6m baluns are many ferrite beads in series. 6m yagis are LFA7 from InnovAntenna (UK). Shack is grounded via No. 8 wire to ground post adjacent to shack. Aluminum plate coax thru-wall panel is grounded by it, as well. ED-KL7UW - If it does, something is very wrong in your shack, like bonding. What DOES matter is having effective common mode chokes at the antenna's feedpoint. See my recommendations at k9yc.com/publish.htm 73, Jim K9YC -- I don't see how a common mode choke would help in that situation. If the noise changes that dramatically depending upon where you have the antenna pointed, that strongly suggests that the noise is being received by the antenna and is not riding on the shield of the coax.? If it is received by the antenna it is differential in nature and a common mode choke won't do anything. It sounds like you are being plagued by either a local noise source, or the atmospheric noise is much stronger in one direction.? In my case, the background noise during the middle of the day is always stronger east versus west even though there isn't any significant housing or businesses within 200 miles east of me. 73, Dave?? AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
