Re: [Elecraft] K3 : Unstable output power in DATA A mode
Don, San, Many thanks for your detailed advices. I have set up as you advised. Output in DATA A mode became stable with occasional glitch. I think I need to find the best setting for my system. Thanks again for your excellent advices. 73 de JH3SIF, Keith 2014/01/31 6:27、Sam Morgan のメール： > then using the K3 in DATA A mode > this often is caused by incorrect audio levels > > the k3's audio level should show 4 bars with the 5th bar flickering > I have run my K3 with the 5th bar solid and it still worked ok > > the power out level is set by the K3's PWR knob > > most other rigs have a different way of setting this up > doing it 'their way' on a K3 results with the varying power levels you are > seeing > > On 1/30/2014 2:37 PM, Keith Onishi wrote: >> Output power of my K3/100, SN 79xx, without KAT3 is very unstable in DATA A >> mode. The symptom is; >> >> 1. With setting 100W output on 14MHz and 10MHz, I get 100W output for a >> couple of seconds, then suddenly the output goes down to 10W or so. >> 2. On 7MHz and below, the output power never go up to 100W with setting 100W >> output. >> 3. With setting around 20W output, actual output sometimes stay around 10W. >> Upon holding TUNE button a couple of seconds, the output goes up to desired >> level. >> >> I guessed this might be caused by RF interfere. However, checking with dummy >> road gave the same results. >> >> These happen only in DATA A mode (I have not tried in AFSK A mode). >> I got stable 100W and a little up in FSK D and PSK D as well as CW. (I have >> not tried SSB yet.) >> >> I manually made Transmitter Gain calibration without error since K3Utility >> calibration capability does not work with K3 with 60m disabled for Japan use. >> >> Any thought on this problem? >> >> 73 de JH3SIF, Keith > > -- > GB & 73 > K5OAI > Sam Morgan __ 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 : Unstable output power in DATA A mode
then using the K3 in DATA A mode this often is caused by incorrect audio levels the k3's audio level should show 4 bars with the 5th bar flickering I have run my K3 with the 5th bar solid and it still worked ok the power out level is set by the K3's PWR knob most other rigs have a different way of setting this up doing it 'their way' on a K3 results with the varying power levels you are seeing On 1/30/2014 2:37 PM, Keith Onishi wrote: Output power of my K3/100, SN 79xx, without KAT3 is very unstable in DATA A mode. The symptom is; 1. With setting 100W output on 14MHz and 10MHz, I get 100W output for a couple of seconds, then suddenly the output goes down to 10W or so. 2. On 7MHz and below, the output power never go up to 100W with setting 100W output. 3. With setting around 20W output, actual output sometimes stay around 10W. Upon holding TUNE button a couple of seconds, the output goes up to desired level. I guessed this might be caused by RF interfere. However, checking with dummy road gave the same results. These happen only in DATA A mode (I have not tried in AFSK A mode). I got stable 100W and a little up in FSK D and PSK D as well as CW. (I have not tried SSB yet.) I manually made Transmitter Gain calibration without error since K3Utility calibration capability does not work with K3 with 60m disabled for Japan use. Any thought on this problem? 73 de JH3SIF, Keith -- GB & 73 K5OAI Sam Morgan __ 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 : Unstable output power in DATA A mode
Keith, Have you adjusted your audio input to produce 4 bars solid on the ALC meter with the 5th bar flashing? If not, please do so - you can do that with the K3 in TX TEST mode so no signal is transmitted. After you set the audio level correctly, then adjust the power knob to the desired power level. I know this is different than the normal way other transceivers are driven for data modes, but the K3 controls power differently than other transceivers and the audio level must first be set as indicated and the power controlled with the power knob. 73, Don W3FPR On 1/30/2014 3:37 PM, Keith Onishi wrote: Output power of my K3/100, SN 79xx, without KAT3 is very unstable in DATA A mode. The symptom is; 1. With setting 100W output on 14MHz and 10MHz, I get 100W output for a couple of seconds, then suddenly the output goes down to 10W or so. 2. On 7MHz and below, the output power never go up to 100W with setting 100W output. 3. With setting around 20W output, actual output sometimes stay around 10W. Upon holding TUNE button a couple of seconds, the output goes up to desired level. I guessed this might be caused by RF interfere. However, checking with dummy road gave the same results. These happen only in DATA A mode (I have not tried in AFSK A mode). I got stable 100W and a little up in FSK D and PSK D as well as CW. (I have not tried SSB yet.) I manually made Transmitter Gain calibration without error since K3Utility calibration capability does not work with K3 with 60m disabled for Japan use. __ 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
