[Elecraft] Data A filter questions

[Mike Harris]

Hi Wes,

Here in TX DATA mode DATA A I have full range of Shift: FC 
400-2600Hz Width: 50-4000Hz

The LO and HI limits vary with BW but basically as much as you want.

I regularly set the BW to 150Hz and SHIFT slowly up the band working 
stations as they appear on the waterfall.

Regards,

Mike VP8NO


----- Original Message ----- 
From: "Wes Stewart" <n7ws at yahoo.com>
To: "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Thursday, December 16, 2010 3:01 PM
Subject: [Elecraft] Data A filter questions


I don't do much PSK operation but I was just fiddling with it and 
noted something puzzling (to me anyway).

Data mode A, although basically a USB mode, defaults to CW-like 
filtering. The "NORM" setting is 400 Hz (my CW filter width, I 
guess), "Shift" is 1.5 KHz (and very limited) and "LO" and "HI" are 
locked out.  Considering how much PSK operation is done, this is 
quite limiting.

Is there some compelling reason that I'm overlooking why the default 
for this mode shouldn't be the same as SSB, with the options to have 
both SHIFT/WIDTH and HI and LO CUT?

Wes  N7WS





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