[hpsdr] Comments on setting up PureSignal

[Brian Lloyd]

On Wed, Feb 26, 2014 at 10:49 AM, Bill Diaz <william.diaz at comcast.net>wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
>  Brian,
>     Based on extensive testing by Mukesh, KE3VG, with a ClearRF sampler,
> good results were achieved on 20 and 40 meters when the external sample
> level was 6db higher than the observed internal crosstalk level on that
> band.  This may not be practical on the higher bands due to the higher
> crosstalk at higher frequencies.
>

Well, I stand by what I wrote. Every radio/amp/coupler/frequency
combination will be different. Each person is going to have to adjust their
setup to match their equipment. I wanted to lay out the PROCESS by which
maximum performance can be achieved. I didn't address the issues of filter
selection or other parameters. Someone who knows those effects better than
I should do that. Regardless, what I posted is correct and useful.

As a final point, no one seems to be addressing the issue of reducing stray
coupling inside the ANAN 100. That alone would provide the biggest
improvement and make all the other settings less critical.

-- 
Brian Lloyd, WB6RQN/J79BPL
706 Flightline Drive
Spring Branch, TX 78070
brian at lloyd.com
+1.916.877.5067
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