Joe, Yes, I have read it. I also read Bob's (KA1GT) article. Please have a look at this short recorded screen session:
https://icecreamapps.com/v/fkkg3dt Either right-clicking into the wide graph and setting the offset - which should not work since it should be fixed to 1500- or by previously being in Q65 with an offset will cause this. It follows the pattern of @0-500 offset will subtract 1500Hz, @501-1000 will subtract 1000Hz, @1001-1500 will subtract 500Hz and so on until +1500Hz I think this feature is used to keep the tones in the middle of the TX passband, but it also requires a frequency shift of the generated tone which does not happen because it's set to a fixed 1500Hz. In short, yes, there should not be a frequency shift on TX in the first place and that is a bug IMHO. I enabled logging for the rig transactions and the radio is indeed commanded to go to the wrong offset on VFO B it should be 144065000. rig_set_split_freq called vfo=VFOB, curr_vfo=VFOA, tx_freq=144064000 It works fine when I right click on 1500Hz in the wide graphs or when 1500 was selected in the previous mode. 73, Andreas, N6NU On Thu, Aug 3, 2023 at 11:45 AM Joe Taylor via wsjt-devel < wsjt-devel@lists.sourceforge.net> wrote: > Hi Andreas, > > Have you read the full-length paper about Echo mode in WSJT-X 2.6.0 and > later? See item #34 in the list of WSJT-related references here: > https://wsjt.sourceforge.io/refs.html . > > As described there, in Echo mode the transmitted audio-frequency tone > should always be 1500 Hz. > > -- 73, Joe, K1JT > > On 8/2/2023 10:47 AM, Andreas Junge via wsjt-devel wrote: > > I posted my initial question on the groups.io list as well, but > Charlie, DL3WDG suggested to post it here as well. > > > > This is reproducible. In Echo Mode right click in the Wide Graph and > select “Set RX & TX Offset” it seems to change the TX. > > > > Steps: > > - In the radio settings set "Split Mode" to Radio or Fake (No difference) > > - Select "Echo Mode" > > - Select 23 cm -> 1296.065 (Default) > > - Select Doppler Tracking mode to "Own Echo" > > - Display shows 1296.065 +/- My Doppler > > - Enable TX > > - The frequency will initially show 1296.06500 and the immediately > change to 1296.064500 > > - On RX the frequency goes back to the correct 1296.06500 +/- Doppler > > - The Echoes will be shown at the @1000 offset and not @1500, which is > expected, but wrong. > > > > After a few tries I found that selecting “Set RX & TX Offset” in the > Wide Graph > > > > If I click on @1000 I get 64.5000, @1500 65.0000, @2000 65.5000 > > > > The audio should be fixed at @1500 and the Set RX & TX feature should be > ignored. > > > > I think this if half of the feature that keeps the audio in the sweet > spot of the bandpass? However, it does not do the necessary 2nd step of > shifting the audio to adjust for it. > > > > 73, Andreas, N6NU > > > > _______________________________________________ > > wsjt-devel mailing list > > wsjt-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wsjt-devel > > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel >
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