[Elecraft] Transmit Equalizers and FT4/8

[Barry]

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" <a.durbin at msn.com>
To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>
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
>
>
>
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to barrylazar2 at gmail.com