Hi Rex,
The general policy in WSJT-X is that we don't try to "remember" user
settings by mode, band, or whatever.
If you want parameters in reset to previously selected values according
to band or mode, you should define a Configuration for each frequently
used combination, and give it a convenient name. You can have a dozen
or more configurations, each one set up the way you want. Don't just
switch to Echo mode, switch to your Echo configuration. If you use both
Q65-60D and Q65-60E frequently, don't just use the ABCDE spinner --
define a configuration for submode.
Doesn't this approach solve your problem as well as any other scheme
could do?
-- 73, Joe, K1JT
On 4/20/2021 7:22 PM, Rex Moncur wrote:
On RC3 Q65 automatically set the TX audio frequency to 1000 Hz for
Q65-60D (as well as the A to C sub-modes) and to 700 Hz for the E sub
modes. That worked well for the upper microwave users and kept the
audio frequency within the bandpass of most SSB transceivers.
Some VHF operators who use the narrow sub-modes asked that the TX audio
frequency be held constant at where it was last set and this was
introduced in RC4 with a red warning if the audio frequency was likely
to go outside the Bandpass. The VHF operators argued in part that the
RC3 method would result in operators tending to focus on 1000 Hz and be
on top of each other.
RC4 does however introduce a problem in that if you change to say WSPR
or echo mode the TX audio frequency is moved up to 1500 Hz and remains
at this when you go back to Q65. EME operators often do an echo test to
establish that their station is working prior to moving to another mode
and thus end up TXing Q65 on 1500 Hzrather than 1000 Hz which is
standard at the upper microwaves. This is a particular problem for
weak signal microwave users who typically use a low Ftol and single
decodesand do not notice that the TX audio frequency has been moved up
to 1500 Hz. The problem is further exacerbated if you are running a
sked with a weak station and use the 1000 Hz tune tone to establish that
both stations are on frequency and that you have viable signals. In
this case the 1000 Hz tune tone does in fact show up at 1000 Hz,
indicating you are on frequency, but when you change to transmit
messages they come out at 1500 Hz and are generally outside Ftol and
thus do not decode.
I can see a number options to mitigate these conflicting requirements
although none are perfect, for example:
1. The RC4 method could be changed such that all modes always returns to
the last TX audio frequency in use for that"mode". While this will work
for microwave operators who are exactly on frequency the audio
frequency will sometimes be changed off 1000 Hz to tune in a station off
frequency so it is less than ideal.
2. The RC3 method could be applied ifthe higher microwave frequencies
are selected and the RC4 method (modified to come back to the last
frequency used for each mode) if VHF and lower microwave frequencies
are selected. The problem is that there is no clear frequency boundary
where one or other method is preferred. One possibility would be the
modified RC4 method up to and including the 3.4 GHz band MHz and the
RC3 method above that. The disadvantage of this approach is that people
would need to understand that if they changed to the higher microwave
frequencies the operating method has changed.
While I don't see an ideal solution my preference for a compromise
solution would be option 2 above. But I think it worth a wider
discussion to see if a better solution can be found.
73 Rex VK7MO
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