[Elecraft] K3 Erratic SSB Power Output (G8DX)
Jack, Each time I have had problems with my K3, including the one described by yourself, I have fixed it by removing the front panel, carefully cleaning all connector contacts and re-assembling. I put a thin layer of 'Contralube' (Maplins) on the connector pins which not only keeps the connector surfaces in good condition but also reduces the amount of force needed to remove the panel. I can do it with my thumbs now and don't have to use the little screw driver slot. Remember to remove that screw on the 3-D block on the lower left side. Good luck! Tom G3OLB __ 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
Re: [Elecraft] [KX3} rig control with fldigi
A note for Windows users of Fldigi and the KX3.
The version of Hamlib, compiled into Fldigi (for Windows) is not
always the latest version as found on the Hamlib project pages.
You can find out what version it is using, with Help, Build Info
and scroll down to libraries.
You also CANNOT (sory to shout) just download/install a later
version of the Hamlib DLL, or build one from source on
Windows(Cygwin) and expect Fldigi(on Windows) to use it. It will
not, it cannot link to, or use a later external file. The program
is not built that way on Windows.
(The Linux version does allow you to do that, as it uses whatever is
installed elsewhere on the system, and that too can sometimes cause
confusion for some.)
If what rig control facilities already built into Fldigi will not
work for you, try creating a new XML file for Fldigi's RigCAT
function, but base it on an existing Elecraft file, that should get
you close for starters. You can edit/save/create XML files with
Windows Notepad just fine.
There is an existing K3 file already in there:-
http://www.w1hkj.com/xmlarchives.html
That should be at a guess, close to what is needed already.
You only realy need frequency control/readback, and mode
control/readback (remember to go for DATA A(?) mode ('MD 6' CAT
command I think) to disable any RX/TX compression/equalisation
settings you use for voice modes.) Also set the filters for
something like 100Hz to 3kHz, and use TX/RX control by CAT command,
as the KX3 supports that. There almost certainly will be other
details to figure out and fine tune, but that's the basics's
covered.
You will need however, knowledge of the commands and parameters used
by the K3/KX3 (or whatever rig you have) they are all in the
programmers reference manual, freely downloadable from Elecraft:-
http://www.elecraft.com/manual/K3KX3%20Pgmrs%20Ref,%20E6.pdf
(Yes, that link does work, I just checked it.)
And idealy a dumb terminal emulator to experiment with. The KX3Util
program can be used for that, if you don't have such a tool already.
It can all be done, it is not dificult, but can be time consuming
(Warning. It can be adictive too!)
Also read the comments in the FldigiWiki (google for it!)
https://fedorahosted.org/fldigi/wiki/Documentation/HOWTO
Especially the Taming the Wild COMport in Windows item under:-
I/O Device Naming
It is all possible, you just have to search and read how.
I have a KX3, am a long time user of Fldigi on Windows and Linux,
and have created the Kenwood TS-870s.xml file, so when I get time(?)
I will do this (also in Flrig, one day, unless someone less rusty at
C/C++ gets there before me) but in the mean time feel free to create
one yourself. You may find it a lot easier than you imagine.
Plus, the grin factor at the end when *You* made it all work, is
well worth it. Just post the result back to the Fldigi list (and
here) for all to revel in your new found expertise.
It's all open source after all, the idea being that the community
contributes and all benefit.
There is lots of help on the WinFldigi list (on Yahoo) too if you
ask.
Get stuck in, and Enjoy!
73.
Dave G0WBX.
On 23 Jul 2013 at 12:00, elecraft-requ...@mailman.qth.net wrote:
Message: 21
Date: Tue, 23 Jul 2013 06:36:07 -0500
From: Nate Bargmann n...@n0nb.us
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3} rig control with fldigi
Message-ID: 20130723113607.gs27...@n0nb.us
Content-Type: text/plain; charset=us-ascii
* On 2013 22 Jul 21:57 -0500, Mike WA8BXN wrote:
I have found the solution to my problem. First, when the initialize
button is pressed an error message appeared on the bottom of the
main window, not on the configuration window that pops up. It took
me a while to see that. I am using the hamlib option to control the
KX3. It seems the com port number cannot be bigger than 9 for it to
work. My Elecraft USB cable defaulted to a com port greater than 9,
so it did not work. Going to device manager for that com port, one
can change to com port number, in my case I changed it to com2 and
it works fine now.
Hi Mike, et. al.
The latest version of Fldigi that is in testing (I'm not exactly sure,
ask Dave, W1HKJ, for which version of Fldigi this change affects)
includes the latest version of Hamlib where the COM9+ limitation
should be removed.
If there are issues with the KX3 Hamlib support, please let me know.
73, de Nate
--
The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true.
Ham radio, Linux, bikes, and more: http://www.n0nb.us
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Re: [Elecraft] Optimum Monitor for the P3 SVGA?
Hi Hank, I believe the comment you are recalling has to do with the data display at the very bottom of the external monitor. The data display (CW, RTTY, and PSK) can be turned on or off. What Dave meant is that you can obtain a taller waterfall display. If the waterfall is tall you can see signals that are several minutes old. I never measured the time duration and of course it would vary depending on how tall you make the waterfall. Needless to say it is well in excess of 10 seconds. In my opinion the SVGA option for the P3 is worth the price of admission. 73, Mike K2MK Hank Garretson wrote On Tue, Jul 23, 2013 at 2:28 PM, Dave Hachadorian lt; k6ll.dave@ gt;wrote: The higher they are, the more time history you can see. Is that the case? I thought I asked question about more history with SVGA awhile back, and I though the answer was that history duration was established by P3. Did I misinterpret? In particular, right now the way my P3 is setup I get about ten seconds of waterfall history. If I keep those P3 settings, can I see more than ten seconds of waterfall on the SVGA? If yes, how much more? 73, Hank, W6SX -- View this message in context: http://elecraft.365791.n2.nabble.com/Optimum-Monitor-for-the-P3-SVGA-tp7577047p7577085.html Sent from the Elecraft mailing list archive at Nabble.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
[Elecraft] K3 For Sale (Updated Package Price)
I have decided to also include my P3 in the package This is what I am selling now: K3 Serial #1455 KAT3 Internal ATU KPA3 Internal 100 Watt Upgrade KXV3A IF Out Xverter Interface KBPF3 General Coverage Module 6K 8 Pole Filter 2.7 KHZ Standard Filter 2.1 KHZ Filter 500 HZ Filter 400 HZ 8 Pole Filter P3 with SVGA Card Asking $2650.00 Plus Shipping and Insurance. Sale to US Market Only. No Trades. Please contact me off list. Thanks for looking. John W9QP __ 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
Re: [Elecraft] [K3] Audio circuit distortion
That one reminds me of a story told some time back at one of our local QRP group meetings. One of the fellows once had a coworker who claimed the source of the power significantly affected audio quality, and that power from a hydro generator produced much cleaner sound than power from a natural gas power plant. Apparently the guy was dead serious. It took quite a while for the laughter to die down... 73, Rich AC7MA On 07/23/2013 02:47 PM, Ron D'Eau Claire wrote: And there are those who spend hundreds of dollars on a-c power cords for their audio systems that have been cryogenically treated to align the copper crystals to avoid turbulence in the a-c power flowing through the cord from the wall outlet. The problem is that human perception determines satisfaction, and perception is not always based on objective data. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person Sent: Tuesday, July 23, 2013 2:25 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] Audio circuit distortion I once wired a guy's $20K audio system with RG8. He claimed it made all the difference. He also claimed that vinyl was vastly superior to CD's. I told him he had a wonderful imagination. The very best and cleanest vinyl with a radial tracking arm turntable and a top of the line cartridge could just barely make a 40db s/n. Digital audio can do 100db anytime. Many years of selling audio gear taught me about the psychology of hearing. It takes an experienced ear to appreciate a truly flat response. Most people prefer a very unbalanced equalization. I got lots of chuckles switching between a $300 system and a $3000 system and having most people prefer the cheap setup. Having designed loud speakers professionally (of which 1,000s were sold), I am equipped with very refined and experienced hearing. Unless you were listening to FM broadcast, how could you possibly appreciate a .3% THD? I always assumed anything less than 1% was more than adequate for our kind of communications. If we get down to this level of performance, we'll need to work on the 50% or so of stations that only concern themselves with output power - not audio quality. There is a lot of dreadfully distorted signals on 20 meter SSB. Nothing beats working a station that is s9+20 and barely understandable because he has compression and mic gain pushed up so he sees 1500 watts on his output meter all the time. So, IMHO, the K3 has absolutely splendid audio when I have a chance to work another station whose audio is actually adjusted correctly. It amazes me that most rigs today have a monitor function. Must be the most unused feature of all time. 73, Doug -- K0DXV __ 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 __ 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
[Elecraft] How do I change the bandmap on my KRC2?
Hi guys, I have searched the reflector archives with no luck. I have been able to modify the bandmap (on my PC) using the latest (rev. 2.17) KRC2 configuration utility, but I can't figure out how to write it to the KRC2. The utility is reading the KRC2, comes up with a message KRC-2 Firmware = version 1.6. I created a Map 2, I can save it to the PC, I can write to KRC-2, and it acts like it is writing, but nothing I do seems to tell the KRC2 to use Map2. It always winds up with Map1. Reading the manual suggests there are jumper changes I might need to make, but the manual is pretty impenetrable to me. Can someone explain? Tnx. 73 de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ 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
Re: [Elecraft] [K3] Audio circuit distortion
The audio distortion of the K3... One can laugh about this, but let us face it. There was a lot of laughter about the reported audio artifacts coming from the first few /thousand/ K3's. At first it was denied by many. It took quite a while until people were convinced that it realy was a problem to the ears of a group of people. And yes, finally there came a decent modification in hardware and software of the K3. That cleared the audio up and cured most of the problems. The K3 is a good rig, not a perfect one. 73 Arie PA3A __ 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
[Elecraft] FS Elecraft T-1 ATU w/FT-817 cable
Hello, Selling because I got rid of my 817, so no need for this now since I got the KX-3. http://www.elecraft.com/T1/T1.htm Original packaging, unit factory assembled. $195 shipped in continental US Contact via email, please. 73, Don N4TZH Sent from my New iPad __ 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
[Elecraft] [K2] CAL FIL Temperature Sensitivity Question
My K2 has a 100 Hz difference in CAL FIL frequencies between cold and full warm up. The 100 Hz difference renders the 200 Hz BW unusable until the K2 warms up. Is this typical, or do I have a component with excessive temperature instability? John KN5L __ 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
[Elecraft] KRC2 Configuration --- More
OK, After many tries, I got the configuration almost right. Since the KRC2 has no 6 meter terminal, I have tried to assign 6 meters to any terminal I am not using. To be specific: I have a 160/80/30 dipole. I assign 160, 80 and 30 to the KRC2 80M slot. I use my 40 meter beam for 40/17/12. I assign 40/17/12 to the KRC2 40M slot. I have a tribander for 20/15/10. I assign 20, 15 and 10 to the KRC2 20M slot. I have tried to assign 6M to 10M, 160M, 17M, 12M, XV1. Every time, it winds up attached to the 20M slot. So, if I put the K3 band on 6M, the band decoder puts 12V on the 20M terminal --- not what I want. Yes, I have the switch in the DL position when i load, and in the OP position when I test. Tnx de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ 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
[Elecraft] K3 P3 Package - SOLD
Thank you all who responded to my ad but the gear has been sold. 73's John W9QP __ 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
[Elecraft] K3 what transmit frequencies are blocked around 8.215 IF
I know the K3 will not transmit on frequencies around it's IF frequency. What are the exact frequencies that are prevented from transmitting? -- GB 73 K5OAI Sam Morgan __ 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
Re: [Elecraft] KRC2 Configuration --- More
Really 20m, not 10m? On the K3, navigate to CONFIG:KRC2 and tap [1] until you see bnd6=b6. How is the KRC2 getting band data from the K3? (AUXBUX? BCD? Serial?) 73, ~iain / N6ML On Wed, Jul 24, 2013 at 9:03 AM, Brian F. Wruble bwru...@gmail.com wrote: OK, After many tries, I got the configuration almost right. Since the KRC2 has no 6 meter terminal, I have tried to assign 6 meters to any terminal I am not using. To be specific: I have a 160/80/30 dipole. I assign 160, 80 and 30 to the KRC2 80M slot. I use my 40 meter beam for 40/17/12. I assign 40/17/12 to the KRC2 40M slot. I have a tribander for 20/15/10. I assign 20, 15 and 10 to the KRC2 20M slot. I have tried to assign 6M to 10M, 160M, 17M, 12M, XV1. Every time, it winds up attached to the 20M slot. So, if I put the K3 band on 6M, the band decoder puts 12V on the 20M terminal --- not what I want. Yes, I have the switch in the DL position when i load, and in the OP position when I test. Tnx de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ 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 __ 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
Re: [Elecraft] Fw: HIgh swr on 6m
Thanks to all who replied. You fellas really make me feel stupid when you remind me what important details I've forgotten to include like is the KAT3 included Well yes, I do have the KAT3 and with some help from Gary in Support I found the IF trap on the board (L10/C10) was causing the high swr on 6m. No obvious damage to the components but for now I've bypassed the trap as recommended by Gary and all is well. Thanks again...! 73, Stewart, GW0ETF GW0ETF wrote Posted this to support but no reply yet, maybe on a well earned summer break?! Anyone here help? Thanks, Stewart, GW0ETF - Forwarded Message - From: Stewart Rolfe lt; gw0etf@ gt; To: k3support@ lt; k3support@ gt; Sent: Monday, 22 July 2013, 9:10 Subject: HIgh swr on 6m Hi, Just tried 6m for the first time on #145(!) and getting high swr into a well matched antenna as well as a dummy load plugged directly into either antenna socket; around 2.1/2.6:1 and high enough for tx calibration to fail. All other bands fine so wondering if I should check the low pass filter? 73, Stewart Rolfe, GW0ETF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://elecraft.365791.n2.nabble.com/Fw-HIgh-swr-on-6m-tp7577030p7577097.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] KPA500 Power On Sequence
You might try the 1.32 beta firmware. There have been some fixes relating to firmware hangs. http://www.elecraft.com/KPA500/kpa500_software.htm 73, ~iain / N6ML On Tue, Jul 23, 2013 at 12:13 PM, Larry Russell k5...@cox.net wrote: Is there a routine to be followed to power up the KPA500? I recently added the KPA500 to my K3 to complete my K-Line. Sometimes when I punch the power on button of the KPA500 nothing happens till I cycle the switch on the back of the AMP off and back on and then the front power on switch will work. I've not seen anything on this in the Digest.. If I power the Amp on first before the K3 it seems to work 8 out of 10 times but not 100% of the time. Is there a sequence I need to follow? Larry - K5ZCJ k5...@cox.net K3 # 6592 P3 # 2166 KAT500 # 0655 KPA500 # 1488 __ 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 __ 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
Re: [Elecraft] [K2] CAL FIL Temperature Sensitivity Question
John, The specified stability for the K2 is less than a 100 Hz drift from a cold start at 25 degC, so your K2 is within the specification (granted it is just on the border). The drift will usually be worse for a K2 with the KPA100 installed than a basic K2 because there is more heat generated in the enclosure and less air volume present to disperse it in.. That is a 'cure' -- Is the serial number of your K2 less than 3446? That is when the PLL Temperature Stability change (Thermistor Mod) became available. If you have a K2 below SN 3000 that has been upgraded, than that mod was likely installed with the upgrade. Examine the K2 RF board toward the left side near the front - if there is a small board sitting vertically in the RP3 location, the mod has been installed. You may have to remove the KDSP2 option to see it. If your K2 does not have it, a kit to install that thermistor mod is available from Elecraft - PN E850138. If you do have that mod installed, the installation instructions for that mod have guidelines for advanced builders about altering the value of RA to achieve better drift compensation for your K2. You can download those instructions from http://www.elecraft.com/manual/PLL%20upgrade%20rev%20C.pdf. Note that the information about altering the RA value does not appear in the K2 manual, and is intended only for those advanced builders who have good capability for properly measuring the drift that results after changing RA. It may take some experimenting to find the right value for your K2.. 73, Don W3FPR On 7/24/2013 11:59 AM, John Oppenheimer wrote: My K2 has a 100 Hz difference in CAL FIL frequencies between cold and full warm up. The 100 Hz difference renders the 200 Hz BW unusable until the K2 warms up. Is this typical, or do I have a component with excessive temperature instability? John KN5L __ 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
Re: [Elecraft] K3 what transmit frequencies are blocked around 8.215 IF
7.5 to 9.0 MHz is TX-blocked on the K3. On Wed, 24 Jul 2013 11:24:07 -0500, you wrote: I know the K3 will not transmit on frequencies around it's IF frequency. What are the exact frequencies that are prevented from transmitting? __ 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
Re: [Elecraft] [K2] CAL FIL Temperature Sensitivity Question
Hi Don, My question is directed specifically at the CAL FIL BFO frequency being 100 Hz different between cold and warm. As mentioned, because the BFO frequency is off by 100 Hz, the 200 HZ filter is unusable because a properly received pitch will place the signal on the filter skirt. This K2 serial number is above 7K The test is: Multi hour warm up, enter CAL FIL, measure and record a filter BFO frequency. Next morning, cold start, perform same measurement as above and compare the difference between the two BFO readings. John KN5L __ 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
[Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
(reference quote from Joe W4TV below) while trying to set up my K3's SSB EQ in the way Joe had mentioned, I happened on an interesting fact. What ever you set the SSB RX EQ for, sets the TX DATA for (Data Audio) as well. does this mean if I want to have a flat RX EQ when using Data Audio for WSJT-X which runs both JT65 JT9-1, I would need to reset the SSB EQ to flat for data? Then set it back like below when I want to go back to SSB? Do we need another separate EQ setting for Data Audio in the software? What am I missing here? -- GB 73 K5OAI Sam Morgan Sun, 21 Jul 2013 18:13:31 -0700 Joe Subich, W4TV said: quote I'm convinced of that ... the vast majority of rigs I've tested over the years have a low-pass roll off characteristic to their audio - generally in the 3 to 6dB per octave range from about 5OO Hz up. This can be simulated in the K3 by setting 400 Hz at 0, 800 at -3, 1600 at -6, 2400 at -8 and 3200 at -9 (3 dB per octave - double for -6 dB per octave). If one couples the 6 dB/octave roll off with a bandwidth of 2.6 KHz (200 - 2800 Hz) there is very little difference in the audio sound between the K3 and other mainline rigs. I prefer to keep my RX EQ flat from 400-2400 Hz, set 3200 at -16 and bring the bandwidth in to 2.4-2.6 KHz. The flat setting at 2400 effectively provides a little intelligibility boost compared to the other rigs for those times I have to use SSB. /quote __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
TX EQ is automatically set to flat (as is RX EQ) in DATA modes. 73, ... Joe, W4TV On 7/24/2013 1:59 PM, Sam Morgan wrote: (reference quote from Joe W4TV below) while trying to set up my K3's SSB EQ in the way Joe had mentioned, I happened on an interesting fact. What ever you set the SSB RX EQ for, sets the TX DATA for (Data Audio) as well. does this mean if I want to have a flat RX EQ when using Data Audio for WSJT-X which runs both JT65 JT9-1, I would need to reset the SSB EQ to flat for data? Then set it back like below when I want to go back to SSB? Do we need another separate EQ setting for Data Audio in the software? What am I missing here? __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
Wed, 24 Jul 2013 11:04:08 -0700 Joe Subich, W4TV said: TX EQ is automatically set to flat (as is RX EQ) in DATA modes. I knew that was suppose to be true for TX But if you Tap [MENU] then RX EQ and then the numbers 1 - 8 you will see it say the settings match the ones you set for SSB. well then on the other hand .. the TX EQ also says what SSB TX EQ is set to. So what you are telling me is to quit believing my lying eyes, hi hi. The internal software is goofy and showing incorrect info to me? Both TX RX are set flat for *ALL* data modes, yes? -- GB 73 K5OAI Sam Morgan On 7/24/2013 12:59 PM, Sam Morgan wrote: (reference quote from Joe W4TV below) while trying to set up my K3's SSB EQ in the way Joe had mentioned, I happened on an interesting fact. What ever you set the SSB RX EQ for, sets the TX DATA for (Data Audio) as well. does this mean if I want to have a flat RX EQ when using Data Audio for WSJT-X which runs both JT65 JT9-1, I would need to reset the SSB EQ to flat for data? Then set it back like below when I want to go back to SSB? Do we need another separate EQ setting for Data Audio in the software? What am I missing here? __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
I'm telling you that the K3 sets TX EQ FLAT in DATA Modes. I don't have my K3 with me but that's the documented behavior and matches what I've seen since the very beginning. If you see anything other that FLAT in TX EQ when your are DATA A or AFSK A, then your rig is not set up correctly. 73, ... Joe, W4TV On 7/24/2013 2:21 PM, Sam Morgan wrote: Wed, 24 Jul 2013 11:04:08 -0700 Joe Subich, W4TV said: TX EQ is automatically set to flat (as is RX EQ) in DATA modes. I knew that was suppose to be true for TX But if you Tap [MENU] then RX EQ and then the numbers 1 - 8 you will see it say the settings match the ones you set for SSB. well then on the other hand .. the TX EQ also says what SSB TX EQ is set to. So what you are telling me is to quit believing my lying eyes, hi hi. The internal software is goofy and showing incorrect info to me? Both TX RX are set flat for *ALL* data modes, yes? __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
If I try to adjust (with the VFO A knob) any of the sub-bands in MAIN:TX EQ x (which are all flat) whilst in DATA A or AFSK A mode, the VFO B line displays N/A. Curiously, though, when tapping the number buttons, it does briefly display the SSB setting for that sub-band, before the N/A covers it up. I suppose that there's a some logic in the firmware that overrides the stored values when in data modes. 73, ~iain / N6ML On Wed, Jul 24, 2013 at 11:34 AM, Joe Subich, W4TV li...@subich.com wrote: I'm telling you that the K3 sets TX EQ FLAT in DATA Modes. I don't have my K3 with me but that's the documented behavior and matches what I've seen since the very beginning. If you see anything other that FLAT in TX EQ when your are DATA A or AFSK A, then your rig is not set up correctly. 73, ... Joe, W4TV On 7/24/2013 2:21 PM, Sam Morgan wrote: Wed, 24 Jul 2013 11:04:08 -0700 Joe Subich, W4TV said: TX EQ is automatically set to flat (as is RX EQ) in DATA modes. I knew that was suppose to be true for TX But if you Tap [MENU] then RX EQ and then the numbers 1 - 8 you will see it say the settings match the ones you set for SSB. well then on the other hand .. the TX EQ also says what SSB TX EQ is set to. So what you are telling me is to quit believing my lying eyes, hi hi. The internal software is goofy and showing incorrect info to me? Both TX RX are set flat for *ALL* data modes, yes? __ 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 __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
to clarify. I do/did understand the TX EQ is set to flat for transmit for *ALL* data modes! what I was still curious about was if the RX EQ is also flat (and *NOT* user configurable) on *ALL* data modes I finally found my answer in the fine manual on page 52: Revision D10, August 24, 2011 == RX EQ Receiver audio graphic equalizer. VFO A is used as an 8-band bar graph, showing boost or cut ( -16 dB to +16 dB in 1 dB increments) for each AF band. The 8 bands are 0.05, 0.1, 0.2, 0.4, 0.8, 1.6, 2.4 and 3.2 kHz. Tap 1 -8 to select an AF band. VFO A selects boost/cut. Tap CLR to reset all bands to +0 dB. CW RX EQ is separate from RX EQ for voice modes. Not applicable to DATA. == the last line answers my question. Not applicable to DATA so when the mode is set to DATA TX the RX EQ db level settings that I see in the display *when* the 1-8 buttons are pushed, are incorrect . in this case the flat line dashes are the true representation of the RX EQ setting when in *ANY* Data mode sorry for all the confusion folks. topic closed please -- GB 73 K5OAI Sam Morgan On 7/24/2013 1:21 PM, Sam Morgan wrote: Wed, 24 Jul 2013 11:04:08 -0700 Joe Subich, W4TV said: TX EQ is automatically set to flat (as is RX EQ) in DATA modes. I knew that was suppose to be true for TX But if you Tap [MENU] then RX EQ and then the numbers 1 - 8 you will see it say the settings match the ones you set for SSB. well then on the other hand .. the TX EQ also says what SSB TX EQ is set to. So what you are telling me is to quit believing my lying eyes, hi hi. The internal software is goofy and showing incorrect info to me? Both TX RX are set flat for *ALL* data modes, yes? __ 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
Re: [Elecraft] K3 TX DATA EQ was Re: K3 RX AUDIO
On 7/24/2013 10:59 AM, Sam Morgan wrote: Do we need another separate EQ setting for Data Audio in the software? At the beta test stage for the K3, it was learned that the audio transformers, which are unshielded, can couple a strong magnetic field into the audio circuits (most often from a big power transformer located on a shelf above or below the K3). I experienced a mild case of this myself, and my neighbor, K6XX, now an engineer at Elecraft, had enough coupling that the K3 regenerated the field and locked in TX. Wayne and I talked about this. My first recommendation was to ditch the transformers, which are completely un-necessary if all the gear in the station is properly bonded together. Probably for marketing reasons (because most hams are convinced that transformers are needed), Elecraft chose my second suggestion, which was to program the TXEQ to roll off the low end sharply, with a cutoff on the order of 250 Hz. So, last I heard, that's what's in place for analog data modes. 73, Jim K9YC __ 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
Re: [Elecraft] [K2] CAL FIL Temperature Sensitivity Question
Performed another test today, last night I aligned 200 Hz CW normal to 04913.08, First power up this afternoon 04913.21, after one hour warm up (no transmitting) 04913.10. John KN5L On 07/24/2013 12:39 PM, John Oppenheimer wrote: Hi Don, My question is directed specifically at the CAL FIL BFO frequency being 100 Hz different between cold and warm. As mentioned, because the BFO frequency is off by 100 Hz, the 200 HZ filter is unusable because a properly received pitch will place the signal on the filter skirt. This K2 serial number is above 7K The test is: Multi hour warm up, enter CAL FIL, measure and record a filter BFO frequency. Next morning, cold start, perform same measurement as above and compare the difference between the two BFO readings. John KN5L __ 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 __ 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
[Elecraft] Help. K2 noise level variation with band selected
I have noticed that as I change frequency bands on my K2 in SSB mode, the audio noise level changes in frequency content. On the five lower bands (3.5 to 18.2 MHz), the noise sounds typical for a 2.2 KHz audio bandwidth but on the three higher bands (21.0 to 28.8 MHz) it is predominantly high frequency with greatly reduced low frequency content. The appropriate sideband is correctly selected for each band, receiver sensitivity appears to be well within specification on all bands and the set works perfectly in all other respects. Could the band pass filters for the top three bands require adjustment? If anyone can explain why this is happening and suggest a fix (if one is actually necessary), it would be greatly appreciated Thanks for your help, Ray __ 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
Re: [Elecraft] Help. K2 noise level variation with band selected
Hi Ray, I believe that your observation is normal. I performed a fresh CAL FIL alignment on the two SSB modes, and tried your test, I get similar results. When on 21 MHz, USB has lower frequency noise, LSB has higher frequency noise. John KN5L __ 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
Re: [Elecraft] K3 Erratic SSB Power Output (G8DX)
I had a look at Jack's video showing the power fluctuations. They are quite rapid and continuous. If they stay like that, it will be a big help in tracking down the problem. The tx signal can be traced through the various stages with an oscilloscope to find where the steady signal begins the fluctuations. In my case, the darn fault would always disappear just when I was ready to start! However there are a few simple tests to do, before taking the covers off. Turn the power down to 12 watts or less. Do the fluctuations disappear? If so, problem is in the 100watt Amp. If not, 100watt Amp is eliminated. Are the fluctuations present at the transverter output? I have the 2meter transverter installed. So in my case, I only needed to look at the 2 meter output. If fluctuations are here, then the LPA board can be eliminated. There is also a method to look at the tx signal on the P3. It is described in the manual. Are the fluctuations present at this intermediate point? I do understand your frustration, Jack. There was a point when I was about to chuck my K3 in the trash. I'm glad I persevered and now I have a superb radio. 73 Roger, VK4YB __ 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
Re: [Elecraft] Help. K2 noise level variation with band selected
Ray, You would have to use a noise generator for a proper test - the atmospheric noise varies from band to band and from antenna to antenna. On the bands above 17 meters, the K2 local oscillator uses low side injection as opposed to high side injection on 17 meters and below. That means that the audio passband for 15m USB (and 12 and 10 meters should be the same as LSB on bands below 15 meters. There will be no difference. If you have doubts, use a wideband noise generator (Elecraft N-Gen) and look at the audio passband on an audio spectrum analyzer (like Spectrogram or SpectrumLab) and you should see the same audio passband shape on 40 meter LSB as you do on 15 meter USB. The bandpass filters are not likely to make a lot of difference unless they are severely mis-tuned. For the best response from the bandpass filters, tune them in transmit mode for peak output at 100 kHz above the low frequency end of the band for 40 through 12 meters, on 10 meters tune them at 26.400 MHz and for 80 use 3750 kHz and if you have 160 meters, start at 1850 kHz and you may have to find a compromise setting between 160 and 80 meters since the inductors are shared and the capacitor are fixed (but that bandpass is quite broadbanded abd that compromise works just fine). 73, Don W3FPR On 7/24/2013 6:05 PM, Ray Collins wrote: I have noticed that as I change frequency bands on my K2 in SSB mode, the audio noise level changes in frequency content. On the five lower bands (3.5 to 18.2 MHz), the noise sounds typical for a 2.2 KHz audio bandwidth but on the three higher bands (21.0 to 28.8 MHz) it is predominantly high frequency with greatly reduced low frequency content. The appropriate sideband is correctly selected for each band, receiver sensitivity appears to be well within specification on all bands and the set works perfectly in all other respects. Could the band pass filters for the top three bands require adjustment? If anyone can explain why this is happening and suggest a fix (if one is actually necessary), it would be greatly appreciated __ 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
Re: [Elecraft] Help. K2 noise level variation with band selected
Hi Ray and John, KSB2 manual page 22: Note: The BFO settings for LSB and USB are swapped on 15, 12 and 10 meters due to the K2's frequency mixing scheme. If you use 17 m or below for making BFO changes, the following rules apply: LSB: moving the LSB BFO lower in frequency will raise the voice pitch and improve carrier rejection. USB: moving the USB BFO higher in frequency will raise the voice pitch and improve carrier rejection. That's the reason for what you observe. 73, Peter - PA0PJE John Oppenheimer schreef: Hi Ray, I believe that your observation is normal. I performed a fresh CAL FIL alignment on the two SSB modes, and tried your test, I get similar results. When on 21 MHz, USB has lower frequency noise, LSB has higher frequency noise. John KN5L __ 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 __ 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
Re: [Elecraft] Help. K2 noise level variation with band selected
John, You will likely notice the opposite difference between LSB and USB on bands lower than 21 MHz. You may not have the SSB filters aligned correctly. It is almost impossible to get the SSB filters aligned for best results using the by the numbers method used in the manual (although those numbers will produce workable filters. The crystal centers marked on the crystal envelope for the K2 and KSB2 are marked to the nearest 100 Hz while the crystals themselves are matched to the nearest 10 Hz to create a crystal set. That means that the numbers in the manual may be off by as much as 90 Hz. Refining that would take too much detail in the manual and might just confuse builders. There is a solution beyond the manual -- To refine the filters Both SSB and CW as well as RTTY if you want to add data modes), use a wideband noise generator (Elecraft N-Gen) and observe the passband setting(s) with an audio spectrum analyzer such as Spectrogram or Spectrum Lab. Part 3 of the K2 Dial Calibration article on my website www.w3fpr.com has information that may be helpful to you. If you need Spectrogram, look for the links near the bottom of the home page. My experience in repairing and aligning K2s is that most all K2s that come onto my workbench need refinement in the filter settings. I have had many unsolicited comments about the improvement in the SSB audio Both for RX and TX) after I align those filters properly. Place the -3dB point of the low frequency slope for the SSB filters at 300 Hz and they will work great. 73, Don W3FPR On 7/24/2013 6:27 PM, John Oppenheimer wrote: Hi Ray, I believe that your observation is normal. I performed a fresh CAL FIL alignment on the two SSB modes, and tried your test, I get similar results. When on 21 MHz, USB has lower frequency noise, LSB has higher frequency noise. __ 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
[Elecraft] K3 - missing 40m ?
Today 40 meters has disappeared from the band UP and Down sequence on my K3 (#7306), it works fine with direct frequency entry or from laptop software. In other words it skips 40m and goes from 30m to 60m and vice versa when stepping thru the bands. Any ideas ? Pete __ 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
[Elecraft] OT OH2BUA down?
Is this site down as of 0010Z? -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ 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
[Elecraft] KX1, ATU, and output power
Hi folks, Should the ATU affect output power from the KX1? If not, here's my conundrum: After finishing the 80-30 mod, the power output seemed a bit low. As per the instructions, I adjusted turn spacing on one of the two toroids on the new filter board and achieved 4 watts out on 80m and 30m, and 3 watts out on 40 and 20 at 14 vdc. I reinstalled the ATU, buttoned up the case. With the radio running into a 50-ohm dummy load, and with ATU engaged, I got about 1.5 watts on 80m, around 3 watts on 40m, 4 watts on 30m, and about 2.5 on 20m. These readings came from the internal watt meter, as well as an outboard NorCal wattmeter. I opened the case again, pulled the ATU, tweaked winding spacing, left the ATU out of the package, and the power levels returned to the original 4/3/4/3. I plugged the ATU back in and the same reduction in power out resulted. On inspecting the boards, it didn't look as though the ATU was physically impinging on the new filter board. And with the ATU attached, but with both boards out of the case, I was able to tweak windings to get the 4/3/4/3 output again...until the boards went back into the case. Then it was back to 1.5/3/4/2.5ish. What could be altering the output? The only thing I could think of was that the toroids might be wound a bit tight, so that when tweaking the spacing between windings, the windings basically slide back into more or less the original positions in about the time it takes to close the case. Yeah, it's a reach, but it's all I've got at the moment. Any thoughts/suggestions? I can try operating without the ATU and use my outboard tuner. But I figured as long as I've got the tuner, I'd like to use it. With best regards, Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: w1...@arrl.net | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 Amateur radio is a contact sport. Get on the air and make a contact! -- Lyle Amundson, K0LFV __ 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
Re: [Elecraft] K3 - missing 40m ?
Go to CONFIG:BND MAP. Use the Band up/down buttons to select 7.0. Rotate VFO A until you see In. 73, ~iain / N6ML On Wed, Jul 24, 2013 at 5:10 PM, k...@comcast.net wrote: Today 40 meters has disappeared from the band UP and Down sequence on my K3 (#7306), it works fine with direct frequency entry or from laptop software. In other words it skips 40m and goes from 30m to 60m and vice versa when stepping thru the bands. Any ideas ? Pete __ 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 __ 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
Re: [Elecraft] K3 - missing 40m ?
Thanks Ian, Greg, Sam and Bill You guys are good and fast - that was the issue ! MNI TNX Pete // KU2C - Original Message - From: iain macdonnell - N6ML a...@dseven.org To: k...@comcast.net Cc: elecraft elecraft@mailman.qth.net Sent: Wednesday, July 24, 2013 8:15:41 PM Subject: Re: [Elecraft] K3 - missing 40m ? Go to CONFIG:BND MAP. Use the Band up/down buttons to select 7.0. Rotate VFO A until you see In. 73, ~iain / N6ML On Wed, Jul 24, 2013 at 5:10 PM, k...@comcast.net wrote: Today 40 meters has disappeared from the band UP and Down sequence on my K3 (#7306), it works fine with direct frequency entry or from laptop software. In other words it skips 40m and goes from 30m to 60m and vice versa when stepping thru the bands. Any ideas ? Pete __ 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 __ 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
Re: [Elecraft] KX1, ATU, and output power
Pete, Any tuner will have losses, but they should be minimal, yours are drastic. Are you evaluating the power output with the ATU in CAL mode? -- it should be Are the powers you reported working into a dummy load? -- it should be. If those two conditions are met, I suspect that you have some problem because the L and C components should be bypassed by the relays. I would look for a problem in the relays (usually a soldering problem). If you are getting those results by tuning into an antenna, then I would suspect the antenna and conclude that the KXAT1 is not capable of tuning into the range of impedance presented by the antenna. The KXAT1 is optimized to use the antenna depicted on page 10 of the KXAT1 manual (and that does not include 80 meters) 73, Don W3FPR On 7/24/2013 8:14 PM, Peter N. Spotts wrote: Hi folks, Should the ATU affect output power from the KX1? If not, here's my conundrum: After finishing the 80-30 mod, the power output seemed a bit low. As per the instructions, I adjusted turn spacing on one of the two toroids on the new filter board and achieved 4 watts out on 80m and 30m, and 3 watts out on 40 and 20 at 14 vdc. I reinstalled the ATU, buttoned up the case. With the radio running into a 50-ohm dummy load, and with ATU engaged, I got about 1.5 watts on 80m, around 3 watts on 40m, 4 watts on 30m, and about 2.5 on 20m. These readings came from the internal watt meter, as well as an outboard NorCal wattmeter. I opened the case again, pulled the ATU, tweaked winding spacing, left the ATU out of the package, and the power levels returned to the original 4/3/4/3. I plugged the ATU back in and the same reduction in power out resulted. On inspecting the boards, it didn't look as though the ATU was physically impinging on the new filter board. And with the ATU attached, but with both boards out of the case, I was able to tweak windings to get the 4/3/4/3 output again...until the boards went back into the case. Then it was back to 1.5/3/4/2.5ish. What could be altering the output? The only thing I could think of was that the toroids might be wound a bit tight, so that when tweaking the spacing between windings, the windings basically slide back into more or less the original positions in about the time it takes to close the case. Yeah, it's a reach, but it's all I've got at the moment. Any thoughts/suggestions? I can try operating without the ATU and use my outboard tuner. But I figured as long as I've got the tuner, I'd like to use it. With best regards, Pete __ 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
[Elecraft] FW: KRC2 Configuration --- More
-Original Message- From: Cady, Fred Sent: Wednesday, July 24, 2013 9:50 PM To: 'bwru...@gmail.com' Subject: RE: [Elecraft] KRC2 Configuration --- More Brian, The issue is in the K3. You need to go into the K3 KRC2 menu and tap 1 to set BAND6=B6. It will then put out the 1010 6m code when on 6. Otherwise it puts out the 10 meter code. I got hung up on that too! Cheers, Fred KE7X Fred Cady fcady at ieee dot org -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Brian F. Wruble Sent: Wednesday, July 24, 2013 10:03 AM To: Elecraft Reflector Subject: [Elecraft] KRC2 Configuration --- More OK, After many tries, I got the configuration almost right. Since the KRC2 has no 6 meter terminal, I have tried to assign 6 meters to any terminal I am not using. To be specific: I have a 160/80/30 dipole. I assign 160, 80 and 30 to the KRC2 80M slot. I use my 40 meter beam for 40/17/12. I assign 40/17/12 to the KRC2 40M slot. I have a tribander for 20/15/10. I assign 20, 15 and 10 to the KRC2 20M slot. I have tried to assign 6M to 10M, 160M, 17M, 12M, XV1. Every time, it winds up attached to the 20M slot. So, if I put the K3 band on 6M, the band decoder puts 12V on the 20M terminal --- not what I want. Yes, I have the switch in the DL position when i load, and in the OP position when I test. Tnx de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ 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 __ 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
