Re: [Elecraft] broken receiver, I suspect
Jeff, Do you have the KXV3 (transverter interface) installed? If so, remove it, and put back the jumper that would have been removed when it was installed (I think there's just one jumper, but check the installation manual). There's a PIN diode on there that will blow if it sees more than about 2W. If you don't have the KXV3, there's another PIN diode on the main RF board that can be vulnerable. I'll forward you an email from support when this happened to me a while ago 73, ~iain / N6ML On Sat, May 10, 2014 at 3:04 PM, Jeff Stai wrote: > On Sat, May 10, 2014 at 2:53 PM, Lyle Johnson wrote: > >> Is the sensitivity problem only on 12 m? >> > > No, it appears to be on all bands, though I have not checked all bands. I > later experienced the same thing on 17m, and in the lab I tried it on all 3 > bands available on the XG2. > > >> >> Is Tx normal on 12 m or did it degrade as well? >> > > As far as I know TX is normal. I didn't get any reports of bad TX signal, > just that many stations were calling and I wasn't hearing them. > > Thanks! - jeff wk6i > > ps: I should have said "I hope" they are all partying in Dayton... > > > >> Lyle KK7P >> >> >> >> On the last day of the operation I was calling CQ on 12m and getting no >>> response. Turns out everyone was calling me but I was hearing almost >>> nothing. >>> >> >> __ >> 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 wk6i.j...@gmail.com >> > > > > -- > Jeff Stai ~ wk6i.j...@gmail.com > Twisted Oak Winery ~ http://www.twistedoak.com/ > Facebook ~ http://www.facebook.com/twistedoak > __ > 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 a...@dseven.org __ 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] broken receiver, I suspect
On Sat, May 10, 2014 at 2:53 PM, Lyle Johnson wrote: > Is the sensitivity problem only on 12 m? > No, it appears to be on all bands, though I have not checked all bands. I later experienced the same thing on 17m, and in the lab I tried it on all 3 bands available on the XG2. > > Is Tx normal on 12 m or did it degrade as well? > As far as I know TX is normal. I didn't get any reports of bad TX signal, just that many stations were calling and I wasn't hearing them. Thanks! - jeff wk6i ps: I should have said "I hope" they are all partying in Dayton... > Lyle KK7P > > > > On the last day of the operation I was calling CQ on 12m and getting no >> response. Turns out everyone was calling me but I was hearing almost >> nothing. >> > > __ > 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 wk6i.j...@gmail.com > -- Jeff Stai ~ wk6i.j...@gmail.com Twisted Oak Winery ~ http://www.twistedoak.com/ Facebook ~ http://www.facebook.com/twistedoak __ 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] broken receiver, I suspect
Is the sensitivity problem only on 12 m? Is Tx normal on 12 m or did it degrade as well? Lyle KK7P On the last day of the operation I was calling CQ on 12m and getting no response. Turns out everyone was calling me but I was hearing almost nothing. __ 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] broken receiver, I suspect
I just sent the message below to support, but I suspect they are all partying in Dayton. If anyone has any other ideas I'd love to hear them - thanks! - jeff wk6i -- Forwarded message -- hi - I recently lent my K3 #00027 as part of the W1AW/7 multi-op from Nevada. The environment was not well controlled and I'm pretty sure my receiver was damaged during a band change. On the last day of the operation I was calling CQ on 12m and getting no response. Turns out everyone was calling me but I was hearing almost nothing. On my bench I checked it using an XG2. The 50uV setting gave only S3. I then did a full parameter initialization and then tried to calibrate the RF gain using the K3 utility. The utility reported that there was not enough signal to perform the calibration. I also have an XG1 so I tried that. Same result. I tried turning the pre-amp on and off, which did cause about a 2 S unit difference as might be expected. The attenuator also caused an audible difference but not a useful S meter reading. One might suspect that I've blown out one or more of those PIN diodes before the preamp. If I had any laying around I might try a swap, but...;) Also: I do have the jumper for the extreme signal protection installed. -- Jeff Stai ~ wk6i.j...@gmail.com Twisted Oak Winery ~ http://www.twistedoak.com/ Facebook ~ http://www.facebook.com/twistedoak __ 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
