Dear Don
Many thanks for your quick answer to my question.
You are right, it was my fault: I compared the RTTY filter set to SSBCr
1-1 with the SSB filter set to SSBC 2-1 (the setting that I use for
voice operation) I forgot to modify this setting when comparing output
power.
Now, with the same SSBC settings in both modes (1-1) there are not
differences in output power.
On the other hand, increasing the audio output of the soundcard and
transmitting in the center of the bandpass I get 70-80 watts in 10
meters and RTTY.
So, all is all right.
Many thanks again for your help!
73
Raimon
EA3EZO
K2/100 nr. 3529
K1 nr. 493
============================================================
Raimon,
If you have the RTTY FL1 filter set to OP1 and the BFO frequencies set
the same as for SSB, there should be no difference.
EXCEPT
The RTTY filter set has an independent SSBCr setting in the menu, and it
should always be set to 1-1 for data modes.
If you have the SSB menu SSBC set to add compression to the signal, that
would explain the difference, but if so, it is causing distortion on
your data signal.
Yes, you will have to increase the audio gain on the higher bands where
the transmit gain is lower.
Re-check the filter settings. If the FL1 filter is set to OP1 and the
BFOs are set the same as for SSB, then there should be no difference if
you set the SSBC menu parameter to 1-1.
73,
Don W3FPR
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