[hpsdr] Pandora & Shielding

[Warren C. Pratt]

Thanks John.  Yes, that would work for me, the amplifier will be
external.

Warren, NR0V

-----Original Message-----
From: John Ackermann N8UR [mailto:jra at febo.com] 
Sent: Monday, March 16, 2009 10:06 AM
To: warren at wpratt.com
Cc: hpsdr at hpsdr.org
Subject: Re: [hpsdr] Pandora & Shielding


If you weren't mounting an amplifier in the box, you could move Atlas 
back several inches so that the connectors were all inside the box. 
You'd have to do some metal work to replace the open back, though.

John
----
Warren C. Pratt wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> 
> 
> ----------------------------------------------------------------------
> --
> 
> I plan to run my hpsdr with an amplifier at full legal limit.  I also
> want to be sure to maximize receiver performance.  Therefore, I've
been 
> concerned that there may be the need to have the boardset 
> well-protected, from an RF point-of-view, from the external
environment. 
>  
> First of all, does anyone have practical experience with the 
> importance
> of grounding and shielding (or not) for hpsdr?
>  
> To prevent RF currents on cable shields from flowing through the 
> circuit
> boards, I think the best method is to bond the shield of each external

> connector to the box where it exits.  Therefore, I was thinking of 
> mounting Atlas in a different location or position in Pandora,
bringing 
> only the cables that require external connection (e.g., antenna, 
> microphone) to the outside of the box, and using connectors bonded to 
> the box for these external connections.
>  
> I don't know if I can do this with Pandora or not.  Any thoughts on
> this would be appreciated.
>  
> Even if I can't practically do this with Pandora, I have to say that 
> it
> has a lot of great features and I'll get one as a "starter" box.
>  
> Warren, NR0V
> 
> 
> ----------------------------------------------------------------------
> --
> 
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