[Elecraft] 250hz Filter - Audio drops

Tommy Alderman aldermant at windstream.net
Mon Jan 3 18:08:00 EST 2011


Thanks for the three direct responses I have already gotten. My SHIFT center
frequency is set for 540 hz, the same as my Pitch setting. I did have RX EQ
with everything set for 0dB except for 400 and 800 hz, which I have set for
+8 and +16, respectively. 

I still have the audio drop with DSP set for either 100 or 50 hz.

Tom - W4BQF


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tommy Alderman
Sent: Monday, January 03, 2011 5:34 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] 250hz Filter - Audio drops

This is driving me crazier!
My narrow filter is 250hz (FL4). FL4 cuts in when I change my DSP filtering
to 250 hz, as it should. FL4 stays in as I make DSP more narrow, all the way
to 50 hz. 
The problem is that when I change DSP from 150hz to 100hz or to 50hz, my
audio output seems to drop tremendously, to the point I have to increase the
AF gain to hear the intended signal. The audio does not come back to
'normal' level until I change DSP from above 100hz bandwidth.
I have FL4 set for 2dB gain; FL4 FRQ set to 0.00.
Would appreciate any suggestions to fix this as I hope it is not 'normal'
operation?
Tom - W4BQF




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