[Elecraft] Is there a reason the receive is so Skinny

[Joe Subich, W4TV]

Larry,

I do not believe in, nor use excessive low frequency audio.  My use
for the full 4 KHz receive is for simultaneous decoding of JT65 and
JT9 signals.  In that regard I am setting DATA A (or USB) to LO =
0.20, HI = 4.20 or FC = 2.20, BW = 4.00.   Multiple measurements
shows the receive bandwidth to be flat from 300 - 4000 Hz and down
slightly at 200/4200 Hz with no RX EQ.

I have absolutely no use for the distortion inducing, power wasting
and QRM generating SSB audio below 200 Hz.  As such both my TX and
RX EQ are set for maximum cut at 50 at 100 Hz.

73,

    ... Joe, W4TV


On 4/27/2014 7:48 AM, Larry Wassmann wrote:
> Joe W4TV
>
>
> 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 transmi tted low end, we would
> really appreciate it. Thanks.
>
>
>
>
>
>
> From: Larry Martus Wassmann Non omnis moriar (Not all of me will die)
> - - - The good I do will live forever.
>
> www.w3oz.com
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