Re: [Elecraft] K3 Data mode power creep
Elliot WA6TLA wrote: > I've reset everything for Data A.ALC 4-5 bars and the power still creeps > from about 80 to 100w in about 5 seconds. After that, as long as their is > no further mode change the power is always 100w without any creep. What is your PWR control set to? It sounds very much as though you have it set to 100W. If so, and you want less power, adjust the PWR control downwards to the desired power level. The IMD in PSK31 at 100W output is about 10 dB worse than at 50W, according to measurements made with my KF6VSG PSKmeter. IOW, in PSK31 you will have a cleaner signal at 50W than you do at 100W. 73, Rich VE3KI __ 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] K3 Data mode power creep
Elliiot, That might be the normal power control "sneaking up" to your power setting. Is your power set at 100 watts? As a second comment, I hope you are not running PSK31 with 100 watts power - 25 watts or less is sufficient to work the world, on that mode, one just bothers the "neighbors" running higher power. 73, Don W3FPR Elliott Lawrence wrote: > I've reset everything for Data A.ALC 4-5 bars and the power still creeps > from about 80 to 100w in about 5 seconds. After that, as long as their is > no further mode change the power is always 100w without any creep. > Elliott WA6TLA > > __ 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] K3 Data mode power creep
I've reset everything for Data A.ALC 4-5 bars and the power still creeps from about 80 to 100w in about 5 seconds. After that, as long as their is no further mode change the power is always 100w without any creep. Elliott WA6TLA - Original Message - From: "lyle johnson" To: "Bruce Beford" ; Sent: Thursday, December 24, 2009 12:41 PM Subject: Re: [Elecraft] K3 Data mode power creep >> ... with DATA A mode you should be setting the input audio level to >> get 4-5 bars of ALC, then setting the Power out on the rig for the power >> level desired. If you do not have this level of ALC action, then the >> radio >> tries to increase the gain to bring the level up... > > Exactly! > > 73, > > Lyle KK7P (in Tucson) > __ > 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] K3 Data mode power creep
Steve, Turn up either the soundcard output or the "MIC gain" (it is actually line in in data mode if you selected it) or both until you get enough audio into the K3. 73, Don W3FPR Steve Ellington wrote: > Don > I had forgotten all about the fact that you needed to set the power level > first. I tried the TX TEST trick but nothing happens on the ALC meter and I > didn't really expect it to. Thanks! > > Steve > N4LQ > n...@carolina.rr.com > - Original Message - > From: "Don Wilhelm" > To: "Steve Ellington" > Cc: > Sent: Thursday, December 24, 2009 2:29 PM > Subject: Re: [Elecraft] K3 Data mode power creep > > > >> Steve, >> >> Are you using the audio level to control the K3 power output AND have >> the power control set to 100 watts? >> If so, that is what is causing your power climb. The K3 thinks you want >> 100 watts out since that is where the power knob is set, and the power >> will climb until that level is obtained. That is how it works. >> >> Go into TX TEST and adjust the audio for 4 to 5 bars on the ALC meter, >> then adjust the power with the Power knob. >> >> 73, >> Don W3FPR >> >> Steve Ellington wrote: >> >>> When using DATA A with an external sound card the RF power creeps upward. >>> I >>> start out with 20 watts and after a minute or so I look and my power is >>> at >>> 100 watts. I quickly turn down the line input either at the K3 or sound >>> card. >>> I've noticed this with 2 different computers and several sound cards. >>> What >>> could cause this? >>> Steve >>> N4LQ >>> n...@carolina.rr.com >>> >>> >>> > > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.722 / Virus Database: 270.14.119/2585 - Release Date: 12/24/09 > 03:11:00 > > __ > 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 > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.722 / Virus Database: 270.14.119/2585 - Release Date: 12/24/09 > 03:11:00 > > __ 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] K3 Data mode power creep
Don I had forgotten all about the fact that you needed to set the power level first. I tried the TX TEST trick but nothing happens on the ALC meter and I didn't really expect it to. Thanks! Steve N4LQ n...@carolina.rr.com - Original Message - From: "Don Wilhelm" To: "Steve Ellington" Cc: Sent: Thursday, December 24, 2009 2:29 PM Subject: Re: [Elecraft] K3 Data mode power creep > Steve, > > Are you using the audio level to control the K3 power output AND have > the power control set to 100 watts? > If so, that is what is causing your power climb. The K3 thinks you want > 100 watts out since that is where the power knob is set, and the power > will climb until that level is obtained. That is how it works. > > Go into TX TEST and adjust the audio for 4 to 5 bars on the ALC meter, > then adjust the power with the Power knob. > > 73, > Don W3FPR > > Steve Ellington wrote: >> When using DATA A with an external sound card the RF power creeps upward. >> I >> start out with 20 watts and after a minute or so I look and my power is >> at >> 100 watts. I quickly turn down the line input either at the K3 or sound >> card. >> I've noticed this with 2 different computers and several sound cards. >> What >> could cause this? >> Steve >> N4LQ >> n...@carolina.rr.com >> >> No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.119/2585 - Release Date: 12/24/09 03:11:00 __ 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] K3 Data mode power creep
> ... with DATA A mode you should be setting the input audio level to > get 4-5 bars of ALC, then setting the Power out on the rig for the power > level desired. If you do not have this level of ALC action, then the radio > tries to increase the gain to bring the level up... Exactly! 73, Lyle KK7P (in Tucson) __ 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] K3 Data mode power creep
Steve, Are you using the audio level to control the K3 power output AND have the power control set to 100 watts? If so, that is what is causing your power climb. The K3 thinks you want 100 watts out since that is where the power knob is set, and the power will climb until that level is obtained. That is how it works. Go into TX TEST and adjust the audio for 4 to 5 bars on the ALC meter, then adjust the power with the Power knob. 73, Don W3FPR Steve Ellington wrote: > When using DATA A with an external sound card the RF power creeps upward. I > start out with 20 watts and after a minute or so I look and my power is at > 100 watts. I quickly turn down the line input either at the K3 or sound > card. > I've noticed this with 2 different computers and several sound cards. What > could cause this? > Steve > N4LQ > n...@carolina.rr.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] K3 Data mode power creep
On Dec 24, 2009, at 10:17 AM, Steve Ellington wrote: When using DATA A with an external sound card the RF power creeps upward. I start out with 20 watts and after a minute or so I look and my power is at 100 watts. I quickly turn down the line input either at the K3 or sound card. _ I had not noticed this but do now that I've looked. First time on DATA A, the power starts in the 25 watt region and goes to my preset 50 watts or so (set to drive an amp) within just a few seconds. After that, the power level seems to have been "learned." If I switch to another mode and then back to DATA A, the power adjustment repeats. This happens at lower and saturated ALC levels. My "normal" is set for a 4-5 ALC flicker. My power out settings are by band (PWR SET = PER- BAND). This is with Mac OS 10.5 and an iMic USB I/O. So it appears to be a K3 "feature" vs otherwise correctly adjusted computer/software. 73! Steve WB6RSE __ 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] K3 Data mode power creep
I believe with DATA A mode you should be setting the input audio level to get 4-5 bars of ALC, then setting the Power out on the rig for the power level desired. If you do not have this level of ALC action, then the radio tries to increase the gain to bring the level up. This may be the source of your "power creep". Set the audio level first, with the rig in TX TEST mode to get 4-5 bars of ALC, then set the PWR control to the desired output level. Do not adjust the audio input levels to set your output RF power. GL, Bruce N1RX __ 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] K3 Data mode power creep
I only notice this on a power setting change. If I have the ALC set correctly to 4-5 bars it seems to take about 2-3 seconds for the power to adjust. Subsequent transmissions do not show any problem. Only after a power setting change. I can certainly live with this as I would rather this than have the power spike higher than the power setting causing other issues. 73 Greg AB7R On 12/24/2009 10:45 AM, Elliott Lawrence wrote: > Yesterday I noticed the same issue on the RF power output using Data A. I > didn't have the problem before. I recently shifted to V3.68 and I wonder if > that could be the issue. Once the power increases to the 100w level which > takes about 10-15 seconds it remains the same for future transmissions. > > 73 > Elliott WA6TLA > > - Original Message - > From: "Steve Ellington" > To: > Sent: Thursday, December 24, 2009 10:17 AM > Subject: [Elecraft] K3 Data mode power creep > > > >> When using DATA A with an external sound card the RF power creeps upward. >> I >> start out with 20 watts and after a minute or so I look and my power is at >> 100 watts. I quickly turn down the line input either at the K3 or sound >> card. >> I've noticed this with 2 different computers and several sound cards. What >> could cause this? >> Steve >> N4LQ >> n...@carolina.rr.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 >> > __ > 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 > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.430 / Virus Database: 270.14.119/2585 - Release Date: 12/24/09 > 08:11:00 > > __ 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] K3 Data mode power creep
Yesterday I noticed the same issue on the RF power output using Data A. I didn't have the problem before. I recently shifted to V3.68 and I wonder if that could be the issue. Once the power increases to the 100w level which takes about 10-15 seconds it remains the same for future transmissions. 73 Elliott WA6TLA - Original Message - From: "Steve Ellington" To: Sent: Thursday, December 24, 2009 10:17 AM Subject: [Elecraft] K3 Data mode power creep > When using DATA A with an external sound card the RF power creeps upward. > I > start out with 20 watts and after a minute or so I look and my power is at > 100 watts. I quickly turn down the line input either at the K3 or sound > card. > I've noticed this with 2 different computers and several sound cards. What > could cause this? > Steve > N4LQ > n...@carolina.rr.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 __ 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
