I do not have a FT-991a, however I use other Yaesu's incl a FTDX-101MP
and FT-897d etc.
On all these and others I set alc for a slight lift off rest point ~2%,
with audio feed level (wsjtx TX pwr) and sound level set,
at desired drive power at ext power meter.
I use rig split and find the modulated power very even across the 3KHz
pan used for TX.
Do you have another txcr you can test with the same software ?
73
Adrian ... vk4tux
On 7/7/24 11:04, Richard Shaw wrote:
On Sat, Jul 6, 2024 at 7:49 PM Adrian <vk4...@gmail.com> wrote:
Richard, Can you tell us the alc meter indication on each of these
1500 -1999 power levels that you describe ?
The alc indication, may provide clues as to whether
audio(modulation) level is a factor ?
That doesn't appear to be the case. at around 1500Hz I get ALC just
over S9 which is about 50% of the meter reading. The operating manual
suggests this is fine. If I choose a TX frequency close to 2000Hz the
ALC meter reading is essentially zero.
Thanks,
Richard
KF5OIM
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