Re: [Elecraft] [K3] Odd transmit power output behavior on TX DATA
I figured out why it takes so much gain. Somewhere along the line, I switched sounds cards and I was outputting to the wrong channel. Amazing that I was able to get any transmit at all. > On Jan 3, 2023, at 9:55 PM, Bill Coleman via Elecraft > wrote: > > Well, I’ve half-way figured it out. > > I increased the LINE gain to the point where I can get 4-5 ALC bars, and now > I get plenty of power right away. > > Still trying to figure out why it takes so much gain, but I’ll puzzle that > out given time. > > Thanks everyone. > >> On Dec 30, 2022, at 1:24 PM, David Hachadorian wrote: >> >> It could be a momentary high SWR when starting a transmission because of >> some slow switching somewhere in line. In K3 Config, try increasing the >> value of Tx Dly. I have to set mine at 14 because of a slow amp. >> >> Dave Hachadorian, K6LL >> Yuma, AZ >> >> >> On 12/30/2022 8:34 AM, Bill Coleman via Elecraft wrote: >>> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I >>> observe an odd behavior with transmit power output. >>> >>> Even though I have an antenna matched to nearly 1:1 VSWR using the internal >>> tuner, any time I change bands, or adjust the power level, SN70XX does not >>> put out full power right away. Instead, it starts about 40-50 watts, and >>> then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 >>> transmissions. >>> >>> It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. >>> >>> My other radio doesn’t exhibit this behavior. >>> >>> The two radios have different internal options, but many of the >>> configuration parameters are the same. >>> >>> Any suggestions? >>> >>> Bill Coleman, AA4LR, PP-ASELMail:aa...@mac.com >>> Quote: "We invented personal computing." >>>-- Bill Gates @ TechNet / MSDN 2003 >>> >>> >>> __ >>> 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 tok6ll.d...@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 aa...@arrl.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 aa...@mac.com Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com Quote: "Boot, you transistorized tormentor! Boot!" -- Archibald Asparagus, VeggieTales __ 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] Odd transmit power output behavior on TX DATA
My knowledge is from being a windows user. In windows when running audio type digital modes there are 3 points of adjustment. The sound card gain, the software gain and the line in gaim. On some external sound cards there is also a pot to adjust one the sound card, that makes 4points. And there seems to be a sweet spot where they all work together and the power pops right up there and other settings where it comes up gradually, for me that seems to disappear after a transmission or two. And it might take an adjustment of one or more olf the settings to correct. Especially after a windows update. When I installed the USB board I thought maybe that would clear up, and maybe it did a bit, but I still have to tweak the settings now and then. On Tue, Jan 3, 2023 at 8:56 PM Bill Coleman via Elecraft < elecraft@mailman.qth.net> wrote: > Well, I’ve half-way figured it out. > > I increased the LINE gain to the point where I can get 4-5 ALC bars, and > now I get plenty of power right away. > > Still trying to figure out why it takes so much gain, but I’ll puzzle that > out given time. > > Thanks everyone. > > > On Dec 30, 2022, at 1:24 PM, David Hachadorian > wrote: > > > > It could be a momentary high SWR when starting a transmission because of > some slow switching somewhere in line. In K3 Config, try increasing the > value of Tx Dly. I have to set mine at 14 because of a slow amp. > > > > Dave Hachadorian, K6LL > > Yuma, AZ > > > > > > On 12/30/2022 8:34 AM, Bill Coleman via Elecraft wrote: > >> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, > I observe an odd behavior with transmit power output. > >> > >> Even though I have an antenna matched to nearly 1:1 VSWR using the > internal tuner, any time I change bands, or adjust the power level, SN70XX > does not put out full power right away. Instead, it starts about 40-50 > watts, and then slowly creeps up to 100 watts. This takes about 4-6 15 > second FT8 transmissions. > >> > >> It doesn’t appear to behave this way on CW or SSB. Only on TX DATA > modes. > >> > >> My other radio doesn’t exhibit this behavior. > >> > >> The two radios have different internal options, but many of the > configuration parameters are the same. > >> > >> Any suggestions? > >> > >> Bill Coleman, AA4LR, PP-ASELMail:aa...@mac.com > >> Quote: "We invented personal computing." > >> -- Bill Gates @ TechNet / MSDN 2003 > >> > >> > >> __ > >> 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 tok6ll.d...@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 aa...@arrl.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 jimk...@gmail.com -- Jim K0XU j...@rhodesend.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
Re: [Elecraft] [K3] Odd transmit power output behavior on TX DATA
Well, I’ve half-way figured it out. I increased the LINE gain to the point where I can get 4-5 ALC bars, and now I get plenty of power right away. Still trying to figure out why it takes so much gain, but I’ll puzzle that out given time. Thanks everyone. > On Dec 30, 2022, at 1:24 PM, David Hachadorian wrote: > > It could be a momentary high SWR when starting a transmission because of some > slow switching somewhere in line. In K3 Config, try increasing the value of > Tx Dly. I have to set mine at 14 because of a slow amp. > > Dave Hachadorian, K6LL > Yuma, AZ > > > On 12/30/2022 8:34 AM, Bill Coleman via Elecraft wrote: >> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I >> observe an odd behavior with transmit power output. >> >> Even though I have an antenna matched to nearly 1:1 VSWR using the internal >> tuner, any time I change bands, or adjust the power level, SN70XX does not >> put out full power right away. Instead, it starts about 40-50 watts, and >> then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 >> transmissions. >> >> It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. >> >> My other radio doesn’t exhibit this behavior. >> >> The two radios have different internal options, but many of the >> configuration parameters are the same. >> >> Any suggestions? >> >> Bill Coleman, AA4LR, PP-ASELMail:aa...@mac.com >> Quote: "We invented personal computing." >> -- Bill Gates @ TechNet / MSDN 2003 >> >> >> __ >> 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 tok6ll.d...@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 aa...@arrl.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
Re: [Elecraft] [K3] Odd transmit power output behavior on TX DATA
It could be a momentary high SWR when starting a transmission because of some slow switching somewhere in line. In K3 Config, try increasing the value of Tx Dly. I have to set mine at 14 because of a slow amp. Dave Hachadorian, K6LL Yuma, AZ On 12/30/2022 8:34 AM, Bill Coleman via Elecraft wrote: I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I observe an odd behavior with transmit power output. Even though I have an antenna matched to nearly 1:1 VSWR using the internal tuner, any time I change bands, or adjust the power level, SN70XX does not put out full power right away. Instead, it starts about 40-50 watts, and then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 transmissions. It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. My other radio doesn’t exhibit this behavior. The two radios have different internal options, but many of the configuration parameters are the same. Any suggestions? Bill Coleman, AA4LR, PP-ASELMail:aa...@mac.com Quote: "We invented personal computing." -- Bill Gates @ TechNet / MSDN 2003 __ 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 tok6ll.d...@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] Odd transmit power output behavior on TX DATA
And old familiar problem. Re-do the TX gain calibration. Some of the trimmers in the BPFs are known to change value over time. Some of the ones in my K3S had to be replaced. Then make sure you have enough audio drive to achieve the "4-5 bars" requirement. See: https://elecraft.mailman.qth.narkive.com/XZR50WUK/k3-data-mode-power-creep Wes N7WS On 12/30/2022 9:46 AM, Bill Coleman via Elecraft wrote: All bands. Power calibration was done about 9 months ago. __ 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] Odd transmit power output behavior on TX DATA
Bill, You need to do a TX calibration and see if that solves the problem. The first thing you should do when you encounter varying power output is do a TX calibration. The second thing to check for on digital modes is the audio levels to make sure they have not changed. They may have been changed inadvertently. Even if you say to yourself "I haven't changed a thing" check it anyway. Both of these have solved these kinds of problems for me in the past. 73, Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bill Coleman via Elecraft Sent: Friday, December 30, 2022 16:46 To: Joe Subich, W4TV Cc: Elecraft Subject: Re: [Elecraft] [K3] Odd transmit power output behavior on TX DATA All bands. Power calibration was done about 9 months ago. > On Dec 30, 2022, at 11:19 AM, Joe Subich, W4TV wrote: > > > One band or all bands? > > Have you done the power calibration routine recently? > > 73, > > ... Joe, W4TV > > On 2022-12-30 10:34 AM, Bill Coleman via Elecraft wrote: >> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I >> observe an odd behavior with transmit power output. >> Even though I have an antenna matched to nearly 1:1 VSWR using the internal >> tuner, any time I change bands, or adjust the power level, SN70XX does not >> put out full power right away. Instead, it starts about 40-50 watts, and >> then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 >> transmissions. >> It doesn't appear to behave this way on CW or SSB. Only on TX DATA modes. >> My other radio doesn't exhibit this behavior. >> The two radios have different internal options, but many of the >> configuration parameters are the same. >> Any suggestions? >> Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com >> Quote: "We invented personal computing." >> -- Bill Gates @ TechNet / MSDN 2003 > > __ > Elecraft mailing list > Home: > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailma > n.qth.net%2Fmailman%2Flistinfo%2Felecraft=05%7C01%7C%7C151acbbc3b > df48087d8e08daea85be60%7C84df9e7fe9f640afb435%7C1%7C0%7C63 > 8080157387596431%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV > 2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=vBAFlaQd4W > 4uWe5pjG1pCGyCQ2QN6FOx5HAyQu%2FxU4E%3D=0 > Help: > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailma > n.qth.net%2Fmmfaq.htm=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be > 60%7C84df9e7fe9f640afb435%7C1%7C0%7C638080157387596431%7CU > nknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha > WwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=Dz4yy7UlV13Uu15tu7O9BEuUXlk7Hf > obrbZJta0Rrvc%3D=0 > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qs > l.net%2F=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be60%7C84df9e7f > e9f640afb435%7C1%7C0%7C638080157387596431%7CUnknown%7CTWFp > bGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn > 0%3D%7C3000%7C%7C%7C=2Yo70t2lPTo93sDO%2BujBO%2BTSmTkkRReDesowT8c > RUb8%3D=0 Please help support this email list: > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qs > l.net%2Fdonate.html=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be60 > %7C84df9e7fe9f640afb435%7C1%7C0%7C638080157387596431%7CUnk > nown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWw > iLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=8iW2cWYfM%2B0kJSCg7kwd8UfnPl8sk9 > E6MrHXbQ8J7hA%3D=0 > Message delivered to aa...@mac.com __ Elecraft mailing list Home: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be60%7C84df9e7fe9f640afb435%7C1%7C0%7C638080157387596431%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=vBAFlaQd4W4uWe5pjG1pCGyCQ2QN6FOx5HAyQu%2FxU4E%3D=0 Help: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be60%7C84df9e7fe9f640afb435%7C1%7C0%7C638080157387596431%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=Dz4yy7UlV13Uu15tu7O9BEuUXlk7HfobrbZJta0Rrvc%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F=05%7C01%7C%7C151acbbc3bdf48087d8e08daea85be60%7C84df9e7fe9f640afb435aaa
Re: [Elecraft] [K3] Odd transmit power output behavior on TX DATA
All bands. Power calibration was done about 9 months ago. > On Dec 30, 2022, at 11:19 AM, Joe Subich, W4TV wrote: > > > One band or all bands? > > Have you done the power calibration routine recently? > > 73, > > ... Joe, W4TV > > On 2022-12-30 10:34 AM, Bill Coleman via Elecraft wrote: >> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I >> observe an odd behavior with transmit power output. >> Even though I have an antenna matched to nearly 1:1 VSWR using the internal >> tuner, any time I change bands, or adjust the power level, SN70XX does not >> put out full power right away. Instead, it starts about 40-50 watts, and >> then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 >> transmissions. >> It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. >> My other radio doesn’t exhibit this behavior. >> The two radios have different internal options, but many of the >> configuration parameters are the same. >> Any suggestions? >> Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com >> Quote: "We invented personal computing." >> -- Bill Gates @ TechNet / MSDN 2003 > > __ > 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 aa...@mac.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] Odd transmit power output behavior on TX DATA
All bands. I have done the power calibration routine at least once in the last nine months, on both radios. > On Dec 30, 2022, at 11:19 AM, Joe Subich, W4TV wrote: > > > One band or all bands? > > Have you done the power calibration routine recently? > > 73, > > ... Joe, W4TV > > On 2022-12-30 10:34 AM, Bill Coleman via Elecraft wrote: >> I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I >> observe an odd behavior with transmit power output. >> Even though I have an antenna matched to nearly 1:1 VSWR using the internal >> tuner, any time I change bands, or adjust the power level, SN70XX does not >> put out full power right away. Instead, it starts about 40-50 watts, and >> then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 >> transmissions. >> It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. >> My other radio doesn’t exhibit this behavior. >> The two radios have different internal options, but many of the >> configuration parameters are the same. >> Any suggestions? >> Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com >> Quote: "We invented personal computing." >>-- Bill Gates @ TechNet / MSDN 2003 > > __ > 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 aa...@mac.com Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ 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] Odd transmit power output behavior on TX DATA
One band or all bands? Have you done the power calibration routine recently? 73, ... Joe, W4TV On 2022-12-30 10:34 AM, Bill Coleman via Elecraft wrote: I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I observe an odd behavior with transmit power output. Even though I have an antenna matched to nearly 1:1 VSWR using the internal tuner, any time I change bands, or adjust the power level, SN70XX does not put out full power right away. Instead, it starts about 40-50 watts, and then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 transmissions. It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. My other radio doesn’t exhibit this behavior. The two radios have different internal options, but many of the configuration parameters are the same. Any suggestions? Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com Quote: "We invented personal computing." -- Bill Gates @ TechNet / MSDN 2003 __ 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] Odd transmit power output behavior on TX DATA
I own two K3/100 radios. One is SN70xx, another SN87xx. On one of them, I observe an odd behavior with transmit power output. Even though I have an antenna matched to nearly 1:1 VSWR using the internal tuner, any time I change bands, or adjust the power level, SN70XX does not put out full power right away. Instead, it starts about 40-50 watts, and then slowly creeps up to 100 watts. This takes about 4-6 15 second FT8 transmissions. It doesn’t appear to behave this way on CW or SSB. Only on TX DATA modes. My other radio doesn’t exhibit this behavior. The two radios have different internal options, but many of the configuration parameters are the same. Any suggestions? Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com Quote: "We invented personal computing." -- Bill Gates @ TechNet / MSDN 2003 __ 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
