Re: [Elecraft] K1 construction manual for Rev D and earlier
Ken, Sorry, I do not have an older K1 manual. If anyone has a pdf copy, I would like to have it too. I can tell you how I set the TS offset on these older K1s, but it does take a few extra pieces of gear. I use a signal generator (another transmitter working into a dummy load will do) to produce a signal and receive it (zero beat) at the K1 sidetone pitch on both the K1 and a monitor receiver. Then without touching the K1 VFO or the monitor receiver, I transmit (into a dummy load) and set the TX offset so the pitch is the same on the monitor receiver. I do play the monitor receiver into the soundcard and view the audio pitch using Spectrogram to make certain the pitch is the same, but you can do the same by just zero-beating the signal in the monitor receiver - tune the TX offset capacitor until it is zero best. 73, Don W3FPR On 3/18/2014 1:53 PM, ke...@arrl.net wrote: Does anyone have a PDF of this older manual, in particular the section on setting the transmitter offset? TNX! __ 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] K1 construction manual for Rev D and earlier
try here: http://www.elecraft.com/K2_Manual_Download_Page.htm#K1 look for: K1 Manual (.pdf)(5.1MB) K1 Owner's Manual, Rev I, April 15, 2011 then look on page 48 of the pdf (page 47 in the manual) where it says: Transmit Offset Adjustment Locate the offset test switch (S2) on the bottom of the RF board. Place it in the TEST position. You should hear a tone in the headphones; its pitch is equal to the transmit offset. If you don’t hear a tone, try rotating C13 (back left corner, near the key jack). Using the menu, locate S T P (sidetone pitch), and go into edit mode to turn on the sidetone. You should now hear two tones: the sidetone and the transmit offset tone. If the sidetone is very weak or very strong compared to the transmit offset tone, use the S T L menu entry to adjust the sidetone volume. Note: The receiver is muted in S T L edit mode, so you'll have to return to S T P after making any change to the sidetone setting. Adjust C13 so that the transmit offset pitch is as close as possible to your selected sidetone pitch. The two will seem to "merge" when the pitches are matched. Exit the menu, and set S2 back to the OPER position. If necessary, use the C A L menu entry to calibrate the operating frequency on transmit (see page 41). On 3/18/2014 12:53 PM, ke...@arrl.net wrote: Does anyone have a PDF of this older manual, in particular the section on setting the transmitter offset? TNX! Ken - ke4rg -- 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 Message delivered to arch...@mail-archive.com
[Elecraft] K1 construction manual for Rev D and earlier
Does anyone have a PDF of this older manual, in particular the section on setting the transmitter offset? TNX! Ken - ke4rg __ 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