[hpsdr] GIBRALTAR Wiki Update

[peter at gehughes.us]

Hi Rick,
Will either oscillator mount on the GIBRALTAR or was that still a design
choice?
The Crystek Oscillator says it runs off +15 Vdc..
Are there provisions to generate +15Vdc since  ATLAS only supplies +/-
12Vdc
Or will it just be run off +12VDC or does that make the V-F an easier
choice.

Peter Hughes
N7BMG

> -------- Original Message --------
> Subject: Re: [hpsdr] GIBRALTAR Wiki Update
> From: Lyle Johnson <kk7p at wavecable.com>
> Date: Sat, July 15, 2006 7:30 pm
> To: "Rick Hambly (W2GPS)" <w2gps at cnssys.com>
> Cc: hpsdr at hpsdr.org
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hello Rick!
> 
> > I have updated the GIBRALTAR Wiki page, including a preliminary block
> > diagram.  I encourage comments.
> 
> Since you asked...
> 
> 1) Are the Synchronous Divider, Oscillator Steering and Quantization 
> Correction intended to be mostly subsumed into an FPGA?  IF so , the 1 
> PPS and 10 MHz drivers tot he ATLAS backplane can likely fit into the 
> same FPGA.
> 
> 2) Would the GPS receiver be better tied to ATLAS for its communications 
> instead of, or in addition to, a local USB interface?
> 
> 3) Based on the notes at the bottom of the page, I vote for the V-F 
> OCXO: less power consumption for the same approximate cost.
> 
> 4) There have been some suggestions that one or two user-programmable 
> output frequencies be provided on Gibraltar, such as 20 MHz or 12.288 
> MHz.  Are you thinking of adding these, or not including them?
> 
> I'm anxious to test this!
> 
> 73,
> 
> Lyle KK7P
> 
> Guess I'd better get on the stick with Sasquatch!
> 
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