On 22/08/2021 15:35, Yukio JG1APX via wsjt-devel wrote:
Hi development teams
I apologize my report if it is already known issue and discussed before.
OS : Windows 10 pro 21H1
Wsjtx : 2.5.0rc5
Rig : IC-9700, FT-991A, FTDX-3000, FTDX-101
Split operations (Rig and Fake It) are not working properly at JT4, JT9,
JT65 and Q65 modes if "VHF and submode features" is enabled.
In case of split by "Rig", the frequency of VFO-B (VFO-Sub) becomes the
same as VFO-A (VFO-Main). PTT works with VFO-B or VFO-Sub as usual.
In case of "Fake It", VFO-A (VFO-Main) keeps the same frequency as RX.
Attached file shows the results. I quess it is not a Hamlib issue.
Is this behavior working programmatically as planned? I find that online
user guide has been written on 8.1. VHF Setup, "On the Radio tab select
Split Operation (use either Rig or Fake It; you may need to experiment
with both options to find one that works best with your radio)". Split
operation seems to be recommended. However, the note about the behavior
could not be found in the manual.
Besides, I went back to review older versions, 2.2.0, 2.3.0. and 2.4.0.
The results were the same.
Best regards,
Yukio
JG1APX
Hi Yukio-san,
this is expected behaviour. The modes you mention all have wider
variants where forcing the lowest tone above 1500 Hz would cause the
modulation to be near or outside of upper bounds of a typical Tx filter.
73
Bill
G4WJS.
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