Andy,
First, I suggest that you use data A mode. This will automatically
set the equalizer and audio compressor correctly making it so that you
don't need to play with adjustments, except level.
Second, the tones used CAN be much lower than 1500 Hz. I have worked
station that were down to 200 Hz. And the the tones can go as high as
the sending stations transmitter will allow, typically less than 2.7-2.8
KHz. This assume that that you have tuned your radio the the FT8/FT4
frequencies correctly.
73,
Barry
K3NDM
------ Original Message ------
From: "Andy Durbin" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 8/29/2019 12:15:08 PM
Subject: [Elecraft] Transmit Equalizers and FT4/8
"Am I right to assume that I should set it back to flat when doing FT4/8?"
If you do FT4 and FT8 right, as in using WSJT-X "split mode", the signal
modulation frequency cannot be outside the range 1,500 to 2,000 Hz. Why would it be
desirable to have a flat TX equalizer response?
Flat is certainly desirable for RX and for some rigs Flat is not the same a
None.
73,
Andy, k3wyc
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