This is indicating an audio level drop. At 1999 Hz can you increase
audio level for the same alc level as 1500, to verify you get the same
power as expected ?
In Data-U FT8 100% modulation should occur at slight indication of alc,
however above should confirm that the audio level is changing,
causing the issue ?
73
Adrian ... vk4tux
On 7/7/24 11:04, Richard Shaw wrote:
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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