look at the spectrum of the FTdx101 emission (on a websdr or other tranceiver
for example) and you will see that :
If you set 100-2900 or 50-3050 you will see that the sgnal
reached 3200 Hz or more...
There is no problem with other Yaesu like FTdx5000 , FT2000.
Can you verify this on your transceiver and give the serial number
if you have not this problem ?
In France, i see the problem on all FTdx101
that I met on the amateur radio bands.
Ludovic - F5PBG.