[Skimmertalk] How much preamp gain for QS1R?
Pete Smith N4ZR
n4zr at comcast.net
Fri Dec 30 21:34:54 EST 2016
Hi Wes - my only suggestion would be to not use an attenuator to handle
broadcast stations (unless you mean HF broadcast). I use a Clifton Labs
high-pass which did a fine job of stopping BC clipping on my QS1R.
73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
On 12/30/2016 11:22 AM, Wes Cosand wrote:
> Does anyone have a good rule for deciding how much preamp gain one needs
> for the CW and RTTY Skimmer servers on the QS1R?
>
> What noise floor is sufficient when you look with SDRmax and what level of
> signals from the broadcast stations persuades you to stick an attenuator in
> the line?
>
> Wes WZ7I
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