Re: [Elecraft] K-Pod button problems
Hello John & the Elecraft Gang, I have a similar problem with one of my KPOD switches. (I also use the KPOD for RIT when I'm running in CW and RTTY.) In my case, I have F3 programmed to toggle in and out of Diversity RX. Tap F3 = DIV; Tap & Hold F3 = clear DIV. For many years this worked like a charm, but recently when operating SPLIT, if I tap F3, it clears SPLIT. If I put the radio back into SPLIT, Tap & Hold F3 again clears SPLIT. The same DIV on/off with the SUB button on the radio does not mess with SPLIT. If this function hadn't operated correctly before, I would naturally suspect a programming issue. Could this somehow be defective switches? Reload firmware? BTW: the F3 Tap / F3 Tap & Hold by themselves work flawlessly. Any ideas much appreciated! Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of j...@kk9a.com Sent: Wednesday, September 27, 2023 8:11 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K-Pod button problems During the weekend's WW RTTY contest I used a K3S and a K-Pod. The K-Pod worked great for RIT control. I tried to use it to occasionally switch my RX antenna in and out but then I was quickly reminded why I do not use this function and instead use the RX ANT button on the radio. I have the F4 button programed so a quick press toggles the RX antenna and a long press switches the radio to 40m. What happens on random occasions is tapping the F4 button will switch the radio to 160m instead of toggling the RX antenna input. It is really annoying to be running stations on 40m and then the radio just jumps to another band. The QSO gets messed up and there is a risk of losing the run frequency. Incidentally a long press of F8 is programmed to switch the radio to 160 and that was definitely not accidently touched. I am unsure of the firmware version. Is this a known problem? Is here a cure? John KK9A (W4AAA in 2023 CW WW RTTY contest) __ 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 ws6x@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] Elecraft Cables
I have several Elecraft cable assemblies for sale. All are new, unused, still in original Elecraft packaging. All prices include shipping. KPAK3AUX - $35 CBL-1500IC - $14 CBL-KENSER1500 - $59 CBL-YAE-BKDA15 - $59 I accept Zelle, PayPal (F), and personal checks. If interested, please contact me off list. Thanks, Jim - WS6X __ 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] Follow-up to OT
FWIW: Thanks to all who responded to my inquiry about "clean" inverters. Here is a summary. While it is unlikely to find any inverter which is 100% rf quiet, some designs are much better, or worse, than others. These following products are FCC compliant [Title 47 (CFR), Part 15 Subpart B for Class B Device] and have proven to be rf quiet in field use: Morningstar SureSine series Samlex inverters Cotek inverters One person reported that the SunForce PRO series inverters were very quiet. Thanks again, Jim - WS6X __ 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] OT: Grease your DELETE Key
OK, I'll make it somewhat Elecraft related... For FD this year I will be using a KX3 in a 1A Battery effort. To power the KX3 and most of the station equipment, I will be using a solar-charged battery system that is a permanent part of my home station. Begin OT: However, for some of the station accessories I need to provide a small 120 VAC supply. I am looking for a ~500 Watt pure sine wave inverter which is rf quiet. I have already tried a GOWISE Power inverter because it was billed as being rf quiet. Unfortunately, it was a terrific hash generator! So my question: Does anyone in this group have experience with quiet inverters? Can anyone make an experience-based recommendation? Tnx es 73, Jim - WS6X __ 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 problem solved.!!!
Josep, Apparently the 100 Watt PA has been disabled. Go to "Config" (Press and hold MENU), rotate VFO B until you see "KPA3", then rotate VFO A to select "PA nor." Remember, it is always a good idea to back up your K3 configuration. Use the K3 Utility to do a Config Backup. If you ever have a problem, you can always restore the K3 from that configuration file. Buena suerte! Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Josep via Elecraft Sent: Monday, April 04, 2022 6:09 AM To: elecraft@mailman.qth.net; cw...@groups.io; foc_memb...@googlegroups.com Subject: [Elecraft] K3 problem solved.!!! Howdy guys, good new here.!!! just to let y´all know that I have finally solved the problem in my K3..!!! A Ham friend has given me a old cable Serial-USB and it has worked.!! The K3 is now running again.! Very happy here so I don´t need to send it to Italy.! Theres one thing I don´t understand and it is related with the PWR, I can see only 12W.! Why it´s not sending 100W like the first days I used it.? I does not go over 12W (?), Can that be due to high SWR.? The tuner has matched the antenna but...(?) Not 100W out by now, any tips.? Thank you so much for all your help.! 73, JosepEA6BFMyWebsiteBUG #256 - CWOps #3072 - FOC #2182 (ex 1724) __ __ 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 Issue
Jim, You are correct! It is clearly not the same problem. I was trying to correct my "bad memory" offering from last evening. Thanks, Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of James Bennett via Elecraft Sent: Friday, April 01, 2022 3:36 PM To: Elecraft Reflector Reflector Subject: Re: [Elecraft] KPA500 Issue Jim, I don’t think this is the same problem as you had. The receive signal on my K3 does NOT drop off when placing the amp in OPER. With my antenna switched over to the IC-705 (not the K3), the received signal does drop off when the amp is placed into OPER mode. Thus, I’m pretty certain that R7 and the PIN diodes are OK - the K3 is not affected. Jim / K7TXA __ 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 Issue
"However, what I'm seeing is that when the amp is in OPER mode, my receive signal strength drops way, way off to the point I have to go full AF volume to hear signals. If I put the amp in STBY, signal levels go back to normal." These exact symptoms have been associated in past reports with a failure of the TR switch PIN diodes. Jack's idea of incorrect band can be easily confirmed, or eliminated, by looking at the KPA500 band display. Andy, k3wyc Jim, Andy et al, I weighed in on this thread last evening from memory in response to Andy's comment, above. By age 77, I should have learned not to rely on memory. As it turns out, my memory was faulty. So, even though it appears many have pointed Jim to a useful, unrelated solution, I will now provide the correct information about the issue and fix with my KPA500 almost one year ago. At first glance, my symptoms were nearly identical to what Jim is reporting: With ALL control cables between the K3s and the KPA500 completely disconnected (only the input and output coax cables connected to the amp), every time the amp is manually switched from "STBY" to "OPER" the receive signal on the K3s dropped about 20 dB. As many suggested, the problem was in the T/R circuit. In my case the culprit was R7. This 51 Ohm resistor was toast -- completely open. My fix was to parallel a pair of 1/4 Watt, 100 Ohm resistors across the R7 pads. Problem solved. The KPA500 has been on good behavior since. Hopefully, this information might be useful to someone in the future. Jim - WS6X __ 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] What happened to ALC?
-Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Fred Jensen Sent: Sunday, January 30, 2022 4:10 PM To: Elecraft Reflector Subject: [Elecraft] What happened to ALC? I can remember, shortly after SSB appeared on the ham bands that "ALC" showed up and was immediately inducted into that top category of things like canned beer and sliced bread. It would reduce the dynamic range of your signal and fill out your RF envelope... >>> Maybe I'm not well-versed in today's whiz-bang technology, but to this old sound engineer this sounds suspiciously like compression. Jim - WS6X __ 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 line out only provides left channel audio
Hi Vic, I just checked my K3s and the line OT is indeed a stereo signal. My MENU settings are exactly like yours. Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Victor Rosenthal 4X6GP Sent: Thursday, January 20, 2022 10:02 AM To: Elecraft Reflector Subject: [Elecraft] K3 line out only provides left channel audio For some reason, I am not getting any right channel output from the LIN OUT jack of my K3, either in diversity or normal mode. I hear both receivers properly from the headphone jack, but when I connect my phones to the line output, I can only hear the left channel, which is the main RX. Line out is configured for NOR, level is 10. L-R MIX is set to A B, though it shouldn't matter in diversity mode. It isn't a cabling issue, because I have the problem with the phones directly plugged into the LIN OUT jack. I never tried to use this feature before, so I don't know if it worked before. I hope there is something I'm overlooking here... -- 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ __ 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] OT: CW Touch Keyer P1PAD
Sorry for the intrusion. (In my defense, I HAVE used this paddle to key 5 Elecraft radios over the years!) In my recent move to a new QTH the manual for my P1PAD touch paddle seems to have taken flight. Does anyone in this group have access to the manual? Would you please contact me off list? The https://www.cwtouchkeyer.com/ website seems to be "information only" status. They advertise their products and invite questions, but I get no response to my queries. Multiple Internet searches have not coughed up any info about this paddle. I have found the manual for the paddle and keyer combo, but zip for the paddle alone. Thanks! Jim - WS6X __ 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 Question
"When I engage OPER the input signal is attenuated by ~20 dB." Thanks to all for the prompt and informative replies. Apparently the culprit has been found. Several reported the exact same issue, one as recently as one week ago. According to one reply, an Elecraft Tech told him, "This is a known failure mode." (Not very encouraging!) Here is a copy of an Elecraft repair report: Reported problem(s): Receive signal is attenuated when in operate. Receive signal is normal when in standby. Problem(s) found: Confirmed problem. Found that D8, D9 and R7 in the T/R circuit had failed. Repair(s) performed: Replaced D8, D9, and R7 on the LPF board. Looks like my KPA500 is in for some "belly up" treatment! One thing has me a bit puzzled though. If this is a known weakness, why hasn't Elecraft designed a "beefed up" mod? My amp had 5 updates / mods done while it was at the factory. This "known failure" was not one of them. Thanks again, for all the help! Jim - WS6X __ 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] KPA500 Question
I just purchased a used KPA500 (SN 0456) from a close friend. The amp was just back to the factory for several repairs and was thoroughly tested. The report reads, "KPA500 #0456 meets or exceeds all factory specifications." My friend unboxed the amp and made several QSOs to be sure all issues were fixed. He then personally delivered the amp to my QTH. Over the weekend I got the amp added to my operating position and was quite surprised to find that input signals are attenuated significantly when the amp is switched from STBY to OPER. No, this is NOT the issue with having the aux cable and the PA key line connected at the same time. This is with NO PA key, and NO aux cable connected. The amp has no connection but RF input and output. It is independent of band. This is with a matched antenna, band switched manually with the front panel buttons. When I engage OPER the input signal is attenuated by ~20 dB. On the TX side, the amp is fine. On most bands I get full rated output into a dummy load with approx. 20 Watts of drive from the K3. I noticed on the service report, one of the tests was, "Tested receive attenuation and IMD." I'm curious about "receive attenuation." This would seem to be related to my problem. Looking at the block diagram, I surmise something in the TR switch is malfunctioning. Before I bug an already-overloaded Elecraft support, I am open to suggestions. Am I missing something obvious? TIA es 73, Jim - WS6X P.S. Yes, I have read the manual, and scoured the archives. The only thing I can find regarding input attenuation in the OPER mode involves incorrect cabling. __ 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] KAT500
Hello Again, Sorry for being so “mysterious” yesterday. Several of you have written, some with helpful suggestions, but many being curious about what I thought was “suspicious” about the KAT500 transaction. Briefly, I have learned when you place a “WTB:” ad on QTH.com, you often encounter one of the lurking scammers, who will offer to sell you the item you are wanting. They will spoof an unsuspecting, legitimate ham, who does not include an email address in their QRZ listing. There are several tell-tale signs of such an operation, and such was the case yesterday with the offer to sell me KAT500, SN 0296. I wrote this group yesterday, hoping that perhaps the rightful owner would step forward. Sure enough, last evening the real owner of the equipment contacted me. Interestingly, asking for a close-up photo clearly showing the Serial Number will usually stop these guys in their tracks, but yesterday the scammer provided me with that photo. These guys are becoming very sophisticated. Anyway, thanks for bearing with me while I outed this scammer. 73 es Stay Safe, Jim – WS6X P.S. I’m still looking for a KAT500. Any offers? __ 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] KAT500
Hello, I have a guy trying to sell me a used KAT500, SN 0296. He sent me an actual photo with the SN clearly showing. Also in the photo is KPA500 SN 0702. Something seems suspicious. I did a Google image search, but the results were inconclusive. Does anyone in this group own, or has ever owned this pair? Please contact me off list. Thanks, Jim - WS6X __ 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 Accessories
The MH2 mic is sold! Tnx, Jim - WS6X __ 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 Accessories
The KFL3A-400 crystal filter has found a new home. Tnx, Jim - WS6X __ 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 Accessories
For Sale: MH2 - Elecraft Microphone, like new - $45 shipped to the *US. KFL3A-400 - 400Hz, 8-pole crystal filter by Inrad - $85 shipped to the *US. *Additional shipping charges to other destinations based on my actual costs. Please contact me direct, off list for details. I am good in QRZ. Tnx es joyous holidays to all! Jim - WS6X __ 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 Notch Filter
Hi Bernie, I think the trick is to press and hold the "NTCH" button to enter the manual notch mode. If you only tap the button, even though the display reads "Manual" and the icon appears, it is not really in the manual notch mode. For example, my CW sidetone pitch is set to 560 Hz. If I tune a carrier to 560, and fully engage the notch mode, I can completely null a carrier when I tune VFO B to 560 Hz. The other clue: If you only tap "NTCH", adjusting VFO B only displays frequency, whereas pushing and holding will cause VFO B knob to display the notch filter frequency. Hope this helps. 73, Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bernie and Cheryl Sent: Wednesday, December 16, 2020 1:16 AM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3s Notch Filter Dear Folks: I have a question about use of the Notch filter on my K3s. I am primarily a CW operator. I understand that, in CW mode, the notch filter's operation is manual, and you tune (adjust?) the filter using the VFO B knob (admittedly, I've not tried it in USB or LSB mode, where I understand its operation is automatic, unless you opt out). I have tried using the filter in CW mode and can detect no effect whatsoever while turning the VFO B knob. I even tried it on the AM broadcast band, with the rig in CW mode, and was unable to have any effect on the AM carrier. For what it is worth, the little indicator on the LCD display, with the two arrows, does come on when I press the Notch filter button. What am I doing wrong? Thanks for any help you can give me. 73 de Bernie, KF0QS __ 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] K-POD Button Switches Intermittently triggering the wrong macro
Please put me on the list for info about a solution to these K-POD switches. I have several with the same intermittent behavior. Thanks, Jim - WS6X -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of hawley, charles j jr Sent: Friday, November 06, 2020 10:55 AM Subject: [Elecraft] K-POD Button Switches Intermittently triggering the wrong macro I posted this on Elecraft .io but will try here as well... I love this K-Pod, BUT I've sort of worn out 3 of them. The symptom is that the most used buttons get noisy and trigger another macro from another address. When I had the first one do that, I did extensive testing to eliminate rf noise, etc. And a new unit however proved to work perfectly...for about 4 months. When it started doing the same thing Elecraft said it was highly unlikely and especially twice to the same guy, but they sent me another one anyway. Great company! Now that one after a year is doing it again. I rearranged the macros to different buttons of the two macros I mostly use, and it works flawlessly again for me. I doubt that Elecraft will keep sending me these things, but maybe I'm missing something. But all I can come up with is noisy switches, double triggering. No switch bounce protection? I notice now on the Elecraft site that there are PC boards available for about $120. Almost doable if the switches are not available separately, and less expensive than the $290 for a new unit. Has anyone come up with a part # for the original switches? Elecraft...? Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles __ 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] QRPWorks K-Board For Sale
The K-Board is sold. Thanks, Jim - WS6X __ 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] QRPWorks K-Board For Sale
Thought I'd try here before "going public" to the ham classifieds. I have for sale an essentially unused smart keyboard interface for a K3/K3s: QRP Works - K-Board K3/K3S Package 2. See the particulars here: https://www.qrpworks.com/k-board-store.html This is a very slick package, and works flawlessly! Reason for selling? Laziness! I simply never got it fully integrated into my two - K3 station. Now I'm facing a downsizing move, so need to part company. This package is currently selling for $199. In addition, my offer also includes a matching wireless mouse with USB dongle. (Photo available for serious inquiries.) My asking price = $150 plus shipping. Please contact me off list. IMPORTANT: Send me an email with your phone number, and a good time for me to call! I will call you accordingly. See my email address in QRZ. Thanks for looking. 73, Jim - WS6X __ 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 189, Issue 24
Message: 11 Date: Tue, 28 Jan 2020 12:27:31 -0700 (MST) From: VernonJ To: elecraft@mailman.qth.net Subject: [Elecraft] Dual Receivers 2 different antennas Diversity receive Message-ID: <1580239651539-0.p...@n2.nabble.com> Content-Type: text/plain; charset=us-ascii My K3S has Main and Sub receivers. I would like to use Diversity receive with the Main using the transmit antenna, and my Sub using a small receive loop. Is there sufficient isolation on the Receive Only antenna connection to protect the Sub? Antennas are 60 feet apart, and I intend to run 500 watts at some point. If I need additional isolation and protection, how would I do this? Thanks. >>> Vernon, I would encourage you to give diversity a try. As an early K3 field tester I got my first K3 in 2007 when I lived in a postage stamp sized lot in CA. I used a variety of RX antennas in full diversity against the TX antenna, including a Pixel Loop. All those RX antennas were closer to the TX antenna than what you are proposing. There were many, many times over the years when having full diversity capability meant the difference between a Q and no Q. You have very little to lose by giving it a try. On caution though... As others have mentioned, I would strongly advise a front-end protection system. 73 es GL, Jim - WS6X __ 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
