[hpsdr] Call for comments - EXCALIBUR

[Richard Faust]

I would definitely be interested in a circuit board.  I have several older but unused 10MHz TCXO's and hope one of them could be fitted to the layout [they are 1 1/2 or 2" square] I expect I will need some type of adapter to get onto a 1.6" high board or just treat it as an external reference standard.

 

Some layout space for a stand alone / adjustable voltage regulator might be nice.  Many TCXO's run from regulated 12v, but I have one that runs on 10V - newer ones probably lower.  Frequency standards should be run 24 - 7 to minimize the aging and drift.  Can take up to 30 days to reach final stability after each power up [properties of quartz], so probably would not want to run power from the Atlas bus for the TCXO.

 

Thanks,

 

Dick Faust K9IVB
 
> Date: Mon, 23 Feb 2009 16:13:15 -0600
> From: KE9H at austin.rr.com
> To: hpsdr at lists.hpsdr.org
> Subject: [hpsdr] Call for comments - EXCALIBUR
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> All:
> 
> If you might be interested in a card to hold a "medium performance"
> 10 MHz TCXO, or to inject a signal from an external 10 MHz reference 
> standard
> onto your HPSDR Atlas bus, please download and read and comment
> on the attached proposed "Excalibur" project card.
> 
> I am assuming this would be available as a bare card or parts
> kit.
> 
> Download proposal:
> *http://www.hamsdr.com/dnld.aspx?id=956*
> 
> Is this something worth setting up as an HPSDR offering?
> Would you be interested in purchasing/building one?
> Anything missing?
> Other comments?
> 
> Thanks,
> --- Graham / KE9H
> 
> ==
> 
> 
> 
> 
> 
> 
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