Larry,
Use Hi-Cut and Lo-Cut rather than Width and Shift and you will have much
better luck.
You can set the Low end down to 0.00 if you want, and the High end to
4.2 kHz. Each end of the DSP filter width is independent when using
Hi-Cut and Lo-Cut. The low end response of the audio stages will be a
limiting factor as well as the low pass filter in the audio path to keep
high frequency white noise at bay.
I do not operate ESSB, so I have not measured the response with the DSP
filter set that wide, but try it and see if that helps.
73,
Don W3FPR
On 4/27/2014 7:48 AM, Larry Wassmann wrote:
Joe maybe you can tell me where I am going wrong then. I use the 6K ESSB filter
and have the K3 set up for 4K transmission. When I, and other look at my signal
I am in fact transmitting out to 4K when measured on a spectrum analyzers. But
when I look at signals myself on my receiver band pass display on the SA, all I
can see is signals out to about 3.5 or a little better. I have the center
frequency set at *155. I was told that is what it is supposed to be set at. If
I move the center frequency up to 200Hz yes I can receive up to 4K but the
bottom end amplitude is way down and when I try to play that audio back via the
DVR everyone says they have lost their bottom end. What am I doing wrong? Are
there other filters I should be using. I or none of the other guys I know how
to set up the K3 to faithfully capture receive audio and play it back with
frequencies below 200Hz, so if you know how to maintain the same amplitude of
signal on the receive low end that matches the trans
mi
tted low end, we would really appreciate it. Thanks.
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