Re: [Elecraft] K3 Low Output on 15
Yes to all. There's no question that something has changed within the K3. 15 was always marginal, with higher current at 100W than the other bands, but now the maximum current on 15 is lower than it used to be, which makes me suspect the LPA module. When I recently did a new TxGain calibration, 15 did not change much, (HP 12 to 19), but 24 MHz did (HP 08 to 46). LP calibrations changed by similar amounts. However, output on 24 MHz is normal, as is the current. The calibration did not change output or current on 15. 73, Scott K9MA On 11/13/2016 22:37, W0MU Mike Fatchett wrote: Did you do a re-calibration? Is this output confirmed on a external meter? Do the K3 and external meters agree is what I am asking. Is there some way you are getting rf back into the rig just in 15m? Does it do this on a dummy load? Have you taken the K3 completely out of line, no computer, no amp, no tuners etc? On 11/12/2016 7:01 PM, Gary Gregory wrote: Issue not seen on mine. Had it since January 2007 so maybe you have an issue? Gary On Nov 13, 2016 11:59, "WILLIE BABER" wrote: My 2014 purchased K3 is 20-25 watts low on 14mhz but all other bands are good. just haven't worried about it as I normally use 50 watts or less to drive an amplifier. I'll look into it after ARRL DX CW in February, so long as it doesn't get worse. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Sat, 11/12/16, K9MA wrote: Subject: [Elecraft] K3 Low Output on 15 To: elecraft@mailman.qth.net Date: Saturday, November 12, 2016, 3:37 PM The output of my K3 (SN 4657) has suddenly dropped 10-15 W on 15 meters, from about 100 W to 85-90. The other bands haven't changed, nor has the supply voltage (13.6 V at full power). Restoring to a previous configuration does not help. I had a similar problem early on, also on 15, and had to ship the K3 back to Elecraft, who replaced the 10 W module, but not the KPA3. 15 seems to be a problematic band. Has anyone else seen a problem like this? 73, Scott K9MA -- Scott K9MA k...@sdellington.us __ -- Scott K9MA k...@sdellington.us __ 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 Low Output on 15
Did you do a re-calibration? Is this output confirmed on a external meter? Do the K3 and external meters agree is what I am asking. Is there some way you are getting rf back into the rig just in 15m? Does it do this on a dummy load? Have you taken the K3 completely out of line, no computer, no amp, no tuners etc? On 11/12/2016 7:01 PM, Gary Gregory wrote: Issue not seen on mine. Had it since January 2007 so maybe you have an issue? Gary On Nov 13, 2016 11:59, "WILLIE BABER" wrote: My 2014 purchased K3 is 20-25 watts low on 14mhz but all other bands are good. just haven't worried about it as I normally use 50 watts or less to drive an amplifier. I'll look into it after ARRL DX CW in February, so long as it doesn't get worse. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Sat, 11/12/16, K9MA wrote: Subject: [Elecraft] K3 Low Output on 15 To: elecraft@mailman.qth.net Date: Saturday, November 12, 2016, 3:37 PM The output of my K3 (SN 4657) has suddenly dropped 10-15 W on 15 meters, from about 100 W to 85-90. The other bands haven't changed, nor has the supply voltage (13.6 V at full power). Restoring to a previous configuration does not help. I had a similar problem early on, also on 15, and had to ship the K3 back to Elecraft, who replaced the 10 W module, but not the KPA3. 15 seems to be a problematic band. Has anyone else seen a problem like this? 73, Scott K9MA -- Scott K9MA k...@sdellington.us __ 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 wlba...@bellsouth.net __ 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 vk1zzg...@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 w...@w0mu.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
Re: [Elecraft] K3 Low Output on 15
Issue not seen on mine. Had it since January 2007 so maybe you have an issue? Gary On Nov 13, 2016 11:59, "WILLIE BABER" wrote: > My 2014 purchased K3 is 20-25 watts low on 14mhz but all other bands are > good. just haven't worried about it as I normally use 50 watts or less > to drive an amplifier. I'll look into it after ARRL DX CW in February, so > long as it doesn't get worse. > > 73, Will, wj9b > > CWops #1085 > CWA Advisor levels II and III > http://cwops.org/ > > ---- > On Sat, 11/12/16, K9MA wrote: > > Subject: [Elecraft] K3 Low Output on 15 > To: elecraft@mailman.qth.net > Date: Saturday, November 12, 2016, 3:37 PM > > The output of my K3 (SN 4657) has > suddenly dropped 10-15 W on 15 meters, > from about 100 W to 85-90. The other bands haven't > changed, nor has the > supply voltage (13.6 V at full power). Restoring to a > previous > configuration does not help. I had a similar problem > early on, also on > 15, and had to ship the K3 back to Elecraft, who replaced > the 10 W > module, but not the KPA3. 15 seems to be a problematic > band. Has > anyone else seen a problem like this? > > 73, > > Scott K9MA > > -- > Scott K9MA > > k...@sdellington.us > > __ > 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 wlba...@bellsouth.net > > __ > 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 vk1zzg...@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
Re: [Elecraft] K3 Low Output on 15
My 2014 purchased K3 is 20-25 watts low on 14mhz but all other bands are good. just haven't worried about it as I normally use 50 watts or less to drive an amplifier. I'll look into it after ARRL DX CW in February, so long as it doesn't get worse. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Sat, 11/12/16, K9MA wrote: Subject: [Elecraft] K3 Low Output on 15 To: elecraft@mailman.qth.net Date: Saturday, November 12, 2016, 3:37 PM The output of my K3 (SN 4657) has suddenly dropped 10-15 W on 15 meters, from about 100 W to 85-90. The other bands haven't changed, nor has the supply voltage (13.6 V at full power). Restoring to a previous configuration does not help. I had a similar problem early on, also on 15, and had to ship the K3 back to Elecraft, who replaced the 10 W module, but not the KPA3. 15 seems to be a problematic band. Has anyone else seen a problem like this? 73, Scott K9MA -- Scott K9MA k...@sdellington.us __ 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 wlba...@bellsouth.net __ 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] K3 Low Output on 15
The output of my K3 (SN 4657) has suddenly dropped 10-15 W on 15 meters, from about 100 W to 85-90. The other bands haven't changed, nor has the supply voltage (13.6 V at full power). Restoring to a previous configuration does not help. I had a similar problem early on, also on 15, and had to ship the K3 back to Elecraft, who replaced the 10 W module, but not the KPA3. 15 seems to be a problematic band. Has anyone else seen a problem like this? 73, Scott K9MA -- Scott K9MA k...@sdellington.us __ 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
