Hi Russ,
More details about "Echo Mode in WSJT-X 2.6.0" (and later versions) are
found in this paper published in DUBUS:
https://wsjt.sourceforge.io/Echo_Mode_in_WSJT-X_2.6.0.pdf
-- 73, Joe, K1JT
On 1/1/2025 2:17 PM, Charles Suckling via wsjt-devel wrote:
Hi Russ
Echo mode now always transmits a 1500Hz tone.
With Doppler set to None, the echo is shifted at audio. You see tone on
waterfall but not at 1500 unless your self Doppler is 0.
More here:
https://drive.google.com/file/d/1SWQUYuZqlvlYow2Kc-OapMRaOc5b-h_n/view?usp=sharing
<https://drive.google.com/file/d/1SWQUYuZqlvlYow2Kc-OapMRaOc5b-h_n/view?usp=sharing>
73
Charlie
On Wed, 1 Jan 2025 at 19:41, k2txb--- via wsjt-devel
<wsjt-devel@lists.sourceforge.net
<mailto:wsjt-devel@lists.sourceforge.net>> wrote:
Hi all. It seems that in echo mode, WSJT-X is no longer adjusting
the TX
tone to compensate for doppler shift.
To test this, I set up on 2 meter EME, with Doppler Tracking enabled but
track mode set to none.
While running echo mode I also observe the frequency of the returned
echo on
the WSJT-X waterfall.
This morning doppler shift was at +120 Hz, and the returned echo was
displayed at 1620 Hz.
If TX frequency was being shifted, the echo should appear at 1500 Hz.
I am quite sure that this worked properly in earlier versions.
73, Russ - K2TXB
PS: After writing the above I realized that I had ignored a much easier
test. I turned on another receiver and monotored the tone from the
EME rig.
It always sends at 1500 Hz in echo mode, no matter if Doppler
Tracking is
enabled or not..
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