The best way is to try and check power levels on all tones used in
WSJT mode. In my case the playing with TxEQ help to compensate lover
signal level from SoundCard at low tones. As such signals are driving
mostly some VHF transverter system with some QRO PA which is during
1min period in 100% duty mode (like in FM mode), there is need to
carefully check power level going out (drive level) to prevent some
bad things :-(
(mostly power shoud be reduced below nominal like in rtty or fm)
As such setting is strongly dependent on soundcard type and settings
there is no simple recommendation. One has to know what he is doing -
but this is general rule with K3 :-)
Maybe TxEQ and RxEQ will be accesible by external utility and profile
will be possible to save/recall.
73!
L. -dst-
K3/10 #727
Lyle Johnson napsal(a):
Surely there is need for TxEQ - for example with WSJT mode to
compensate different levels from souncard and possible filter
influence for all tones to set equal power-out.
The TxEQ adjustment frequencies are set for voice operation. They are
the same setpoints as used in the W2IHY 8-band EQ.
They are probably not in the right places to compensate for whatever
ripple might be in the subsequent crystal filters in the Tx Path. Also,
such compensation would change with USB/LSB operation, and is not easily
observable by the operator of the Tx, so might not be straightforward to
set properly.
Any mode that is designed for robust, or weak signal, HF data operation
should have allowance for slight amplitude and phase variations, since
that is a normal part of HF signal propagation.
I do not remember if TxEQ settings is stored via mode or not.
They are not, nor are Rx EQ settings, at present.
73,
Lyle KK7P
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