Re: [Elecraft] De-sensed K3 after xmit
My incident yesterday was on 20M CW during the NAQP. After transmitting I suddenly could not hear any sigs. I looked at my P3 and there were plenty of strong sigs showing up, but I just could not hear them. I tried to tune around, but could not hear anything. I tried transmitting and SWR seemed okay. I was at first unsure what to do, but I decided to change bands by hitting the band button and I believe went down to 30M. I then went right back up to 20M and AF was restored. After that I resumed the contest with no problems. I was using LPBridge and running N1MM and my regular logging program at the same time. Sometimes LPBridge can get hung but that did not appear to happen this time. Everything has been working normally ever since. It was very weird to then see the series of emails regarding this same phenomenon later in the day! Seems like a firmware bug, but I have not been able to reproduce it. Dave, N4QS - Original Message - From: "Jack Berry" To: "Dave, W8OV" Cc: Sent: Sunday, January 15, 2012 7:40 AM Subject: Re: [Elecraft] De-sensed K3 after xmit > Thanks everyone. I'll check AGC and PL-259's today when I get back to the > shack. I have not (purposefully) touched AGC so it should at default > settings. Seldom use noise reduction either. I will pay close attention to > signal strengths as well. > > Jack > > On Jan 15, 2012, at 7:32 AM, "Dave, W8OV" wrote: > >> I had a similar problem years ago with other gear. It all went away >> when I replaced a connector feeding the coax through a wall. >> >> --Dave, W8OV >> >> On 1/14/2012 9:15 PM, Jack Berry wrote: >>> Anyone have a similar experience? >>> >>> Only occasionally, I notice that when I end a transmission my K3 receive >>> seems almost muted. It recovers to normal sensitivity very quickly. I >>> so far see no pattern to the effect that might suggest a cause. >>> >>> Thanks, >>> Jack - WE5ST >>> >> __ >> 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 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] De-sensed K3 after xmit
Thanks everyone. I'll check AGC and PL-259's today when I get back to the shack. I have not (purposefully) touched AGC so it should at default settings. Seldom use noise reduction either. I will pay close attention to signal strengths as well. Jack On Jan 15, 2012, at 7:32 AM, "Dave, W8OV" wrote: > I had a similar problem years ago with other gear. It all went away > when I replaced a connector feeding the coax through a wall. > > --Dave, W8OV > > On 1/14/2012 9:15 PM, Jack Berry wrote: >> Anyone have a similar experience? >> >> Only occasionally, I notice that when I end a transmission my K3 receive >> seems almost muted. It recovers to normal sensitivity very quickly. I so >> far see no pattern to the effect that might suggest a cause. >> >> Thanks, >> Jack - WE5ST >> > __ > 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] De-sensed K3 after xmit
I had a similar problem years ago with other gear. It all went away when I replaced a connector feeding the coax through a wall. --Dave, W8OV On 1/14/2012 9:15 PM, Jack Berry wrote: > Anyone have a similar experience? > > Only occasionally, I notice that when I end a transmission my K3 receive > seems almost muted. It recovers to normal sensitivity very quickly. I so far > see no pattern to the effect that might suggest a cause. > > Thanks, > Jack - WE5ST > __ 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] De-sensed K3 after xmit
Jack, Is this happening when working strong stations ? What I notice, for example in a contest, is that after working a strong station and logging the QSO with a TU, the RX is still desensed by the AGC action caused by the strong station I just worked. The AGC keeps starts off where it is left as you start transmitting. Getting back to full sensitivity then, is set by the agc settings. 73 Arie PA3A Op 15-1-2012 4:15, Jack Berry schreef: > Anyone have a similar experience? > > Only occasionally, I notice that when I end a transmission my K3 receive > seems almost muted. It recovers to normal sensitivity very quickly. I so far > see no pattern to the effect that might suggest a cause. > > Thanks, > Jack - WE5ST > __ 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] De-sensed K3 after xmit
Pete, I had a similar experience last year at Field Day. It only happened on 40 meters. It turned out to be a loose PL-259 connector on the 40 meter bandpass filter. 73, Don W3FPR On 1/15/2012 7:36 AM, Pete Smith N4ZR wrote: > Jack, what AGC setting do you use? I have noticed something similar > here, since around the time I updated to the latest firmware. I'm not > suggesting cause and effect, just approximately how long it's been> > > 73, Pete N4ZR > > The World Contest Station Database, updated daily at www.conteststations.com > The Reverse Beacon Network at http://reversebeacon.net, blog at > reversebeacon.blogspot.com, > spots at telnet.reversebeacon.net, port 7000 > > > On 1/14/2012 10:15 PM, Jack Berry wrote: >> Anyone have a similar experience? >> >> Only occasionally, I notice that when I end a transmission my K3 receive >> seems almost muted. It recovers to normal sensitivity very quickly. I so >> far see no pattern to the effect that might suggest a cause. >> >> Thanks, >> Jack - WE5ST >> __ 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] De-sensed K3 after xmit
I have experienced something similar and my impression is that it is the noise blanker that sometimes needs some time to recover, but this is just my gut feeling at the moment. - Sverre, LA3ZA K2 #2198, K3 #3391 LA3ZA Unofficial Guide to K2 modifications -- View this message in context: http://elecraft.365791.n2.nabble.com/De-sensed-K3-after-xmit-tp7188936p7189634.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] De-sensed K3 after xmit
Jack, what AGC setting do you use? I have noticed something similar here, since around the time I updated to the latest firmware. I'm not suggesting cause and effect, just approximately how long it's been> 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 1/14/2012 10:15 PM, Jack Berry wrote: > Anyone have a similar experience? > > Only occasionally, I notice that when I end a transmission my K3 receive > seems almost muted. It recovers to normal sensitivity very quickly. I so far > see no pattern to the effect that might suggest a cause. > > Thanks, > Jack - WE5ST > > __ > 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] De-sensed K3 after xmit
This just happened today to me during the NA QSO party on 20M. Dave, N4QS Sent via BlackBerry by AT&T -Original Message- From: Jack Berry Sender: elecraft-boun...@mailman.qth.net Date: Sat, 14 Jan 2012 21:15:53 To: Elecraft@mailman.qth.net Subject: [Elecraft] De-sensed K3 after xmit Anyone have a similar experience? Only occasionally, I notice that when I end a transmission my K3 receive seems almost muted. It recovers to normal sensitivity very quickly. I so far see no pattern to the effect that might suggest a cause. Thanks, Jack - WE5ST __ 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] De-sensed K3 after xmit
No box, no squelch. On Jan 14, 2012, at 9:38 PM, "KENT TRIMBLE, K9ZTV" wrote: > Or Squelch is on? > > Kent > > On 1/14/2012 9:15 PM, Jack Berry wrote: >> >> Anyone have a similar experience? >> >> Only occasionally, I notice that when I end a transmission my K3 receive >> seems almost muted. It recovers to normal sensitivity very quickly. I so >> far see no pattern to the effect that might suggest a cause. >> >> Thanks, >> Jack - WE5ST >> >> __ >> 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
