[Elecraft] K3 with subrx - intermittent main RX problem and pwr out

I have a K3 approx 8 years old. Fully equipped with subrx, 100W PA, antenna tuner and in/out module. When I connect the subrx, the main rx sometimes loses signal and at the same time power out goes to zero. Looking at the diagrams, I suspect there is an intermittent contact problem in relay K1

[Elecraft] [OT] A Podcast Star is Born, or My 30 Seconds of Fame

All, Good morning. I had the great pleasure, earlier this week, of being a guest on the Everything Ham Radio podcast. I shared my knowledge (I am very hesitant to use the work "expertise") on PSK31 with podcast host Curtis, K5CLM. The podcast is now available, and I encourage everyone to give it

[Elecraft] Artifacts in headphones when monitoring my transmitted CW

I just got my Heil Pro 7 iC hooked up to my KX3. I made sure the Mic Bias was on, and set my monitor level to 5. Whenever I transmit CW (even with 0 W out), there is a strange artifact that happens as the Dit and Da's finish, kind of like they have a very short burst of a chirp or similar sound

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Olaf, The relays used by Elecraft are quite reliable, so I suspect that is not a reasonable source of the problem. In more than 12 years of repairing the Elecraft legacy gear (more than 1200 repairs), I have had to replace only a small handful of relays due to failure. I have replaced

Re: [Elecraft] Remoting the KPA500 & KAT500?

One thing to watch is the length of the USB cable. Over about 15 feet or so (I believe the spec is 5 meters) you’ll need an active repeater cable or some alternate connection method. I use an Ethernet to serial port server with a fiber link between the desk and the closet. Two KPAs and two

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

That's what seemed like a normal language difference to me too. Thanks, Bill. 73, matt W6NIA On 5/4/2017 7:11 PM, Bill Johnson wrote: Matt, a difference in the language. I would take them to be the same. 73, Bill K9YEQ -Original Message- From: Elecraft

[Elecraft] XV 432 For sale

Hello Folks, I found my inoperative 432 and figured I'd pass it on to someone who might be able to fix it up and use it.I never got it to work from the start so it has no time on the finals. Asking 265 plus the shipping paypal. George NE2I 845 489 8563 

[Elecraft] Can I overcharge the batteries in my KX3

Hello, I am about to take a month long trip to California and then back to Virginia starting this Sunday. I am taking my KX3 along with some accessories so I would like to know - is it possible to overcharge the NiCads or Enloops. I have a system set up on my motorcycle that will provide

Re: [Elecraft] XV 432 For sale

Sold to Dave AD6A in record time! Thanks Dave! George NE2I From: Dave AD6A To: George Cortez Sent: Thursday, May 4, 2017 4:46 PM Subject: Re: [Elecraft] XV 432 For sale I'll buy it from you George! Dave AD6A Sent from my  iPhone 7 Plus On

Re: [Elecraft] For Sale, unbuilt K2 with many options

Thanks to all who offered comments or offered to buy the kits. The kits have been sold. Ken KB8KE -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Allen via Elecraft Sent: Wednesday, April 26, 2017 2:14 PM To: elecraft@mailman.qth.net Subject:

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Sorry to be thick Is a dry joint same as a cold joint? Thanks and 73, matt W6NIA On 5/4/2017 9:12 AM, Alan. G4GNX wrote: FWIW we thought that a relay was failing on our club's KAT500. I bought a new one from Elecraft and replaced it without thinking about it. They're quite cheap and it

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

An intermittent or open circuit problem that has occurred on occasion is caused by misaligning TMP male and pressing it too hard into the socket. What can happen is that the male pin hits the metal edge of the female socket inside the connector and actually pushes the metal socket out of its

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Also make sure TMP connectors to and from synthesizer/KREF/Subrx boards are secure. Brian/K3KO On 5/4/2017 13:46 PM, Don Wilhelm wrote: Olaf, The relays used by Elecraft are quite reliable, so I suspect that is not a reasonable source of the problem. In more than 12 years of repairing the

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

FWIW we thought that a relay was failing on our club's KAT500. I bought a new one from Elecraft and replaced it without thinking about it. They're quite cheap and it wasn't worth chancing an intermittent relay. Whilst I was re-assembling the tuner, I discovered that the tag washer connecting

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Must underscore what Don said. Busted BNC connector/coax wiring is so very common. If they were hand-done with soldering iron and NOT RG400 coax (teflon, won't melt) or were not crimped with specific tool required for the specific connector and specific coax, they are more likely to go bad over

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Well, I had a relay fail on my KAT3 board. I don't remember which one. Elecraft sent me a replacement. It wasn't hard to replace, but it happens. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 4 May 2017 16:46, Don Wilhelm wrote: Olaf, The relays used by

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Matt. You are not at all thick. We all have to learn somewhere. The only time you could be considered thick is if you never asked the question. :-) The wiki/dictionary description of dry and cold joints describes slightly different observable effects but to all intents and purposes a dry or

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

I had this happen with the 2M module, too. What I do now with these is try to support the little teflon insulator in the socket from the rear with a small flat-blade screwdriver — at least the ones I get to that way. Took a while to figure out what the problem was, since everything looks

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

"Two countries separated by a common language." I believe "tag washer" is a "solder lug" on our side of the Atlantic. I think Alan might mean the screw connection on that lug becoming intermittent due to oxidation and/or inadequate tightening. Generally speaking, cold solder joints are

Re: [Elecraft] Can I overcharge the batteries in my KX3

The KX3's internal charger is intended to charge _NiMH_ batteries. Its output is a constant 200 mA. At that current level, you are unlikely to overcharge the AA cells, and all that will happen is that they'll stay warm. Theway I handle mobile ops with batteries is to run the charger in 4

Re: [Elecraft] Can I overcharge the batteries in my KX3

First of all, forget the Nicads.  The KX3 isn't really designed for Nicads, and they have a lot of problems such as excessive self discharge, and leakage.  If you want rechargeable cells, use modern low self discharge (LSD) nickle-metal hydride (NiMH) cells.  Eneloops are one example, and

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Matt, a difference in the language. I would take them to be the same. 73, Bill K9YEQ -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Matt Zilmer Sent: Thursday, May 4, 2017 11:44 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 with

Re: [Elecraft] Can I overcharge the batteries in my KX3

Matt, thank you for the refresher. I had forgotten the info you espoused even though I was an FT back in the KX3 earliest days! 72 & 73, Bill K9YEQ, FT'er for K2, KX1, KX3, KXPA100, KAT500, W2, etc. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf

[Elecraft] Remoting the KPA500 & KAT500?

More and more I'm considering remoting my KPA500 out of the shack,mostly becuse of the heat and secondly because of the fan noise. In doing so it would proably make sense to move the KAT500 along with it. Then it would be a matter of routing  one coax from the K3 to th amp, and a USB cable with

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Solder lug/solder tag/tag washer all the same thing. :-) Perhaps instead of dry joint I should have said "broken joint". The bond between the solder lug and the connecting wire had become broken, resulting in the effect of a dry joint. This could have been caused by someone being over