[hpsdr] [GIBRALTAR] An interesting link on frequency lockingand GPS disciplining

[Steven Bible]

Alex,

I agree with all below.  The intent is to keep the design flexible for a
variety of situations and applications.  At a point we do have to draw the
line.  But with a design with a CPLD, the possiblities are endless.

73,

- Steve, N7HPR
 (n7hpr at tapr.org)


> -----Original Message-----
> From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org]On Behalf
> Of Rick Hambly (W2GPS)
> Sent: Tuesday, May 23, 2006 5:50 PM
> To: 'Alex'; hpsdr at hpsdr.org
> Subject: Re: [hpsdr] [GIBRALTAR] An interesting link on frequency
> lockingand GPS disciplining
>
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Alex,
>
> For (c) I suggest that provision be made for both 5 and 10 MHz
> inputs.  Many
> of the best Rubidium, Cesium, and Hydrogen Masers have 5 MHz
> outputs. I use
> a HP5065A (5 MHz) Rubidium steered to GPS with Tac32Plus, a Time Interval
> Counter and a front panel control.  It is so stable that it takes
> a month's
> worth of data to develop a calibration profile and it does not suffer the
> discontinuities associated with electronic steering.  I distribute the
> output all over my lab.
>
> Rick
> W2GPS
> AMSAT LM2232
>
>
> -----Original Message-----
> From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On
> Behalf Of
> Alex
> Sent: Tuesday, May 23, 2006 5:56 PM
> To: Christopher T. Day; hpsdr at hpsdr.org
> Subject: Re: [hpsdr] [GIBRALTAR] An interesting link on frequency
> lockingandGPS disciplining
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> I think the answer is yes. It's a widget, we can use it for
> anything on the
> presentation.
> I think GIBRALTAR will have a few options:
>
> (a) OCXO - either buy a surplus one, buy a new one, or roll-your-own
> (althought we might have a G8ACE-derived on onboard)
> (b) GPS - either use the Trimble Resolution-T or get redundancy with the
> iLotus M12M
> (c) Plug in your own reference and not use GIBRALTAR
>
> Alex, N3NP
>
> ----- Original Message ----
> From: Christopher T. Day <CTDay at lbl.gov>
> To: Alex <harvilchuck at yahoo.com>; hpsdr at hpsdr.org
> Sent: Tuesday, May 23, 2006 5:32:20 PM
> Subject: RE: [hpsdr] [GIBRALTAR] An interesting link on frequency locking
> andGPS disciplining
>
> The RSGB slide presentation "Using GPS in Amateur Radio" looks
> particularly interesting in trying to figure out just what we want
> Gibralter to do. Which use cases do we want to serve?
>
>
>     Chris - AE6VK
>
>
>
> -----Original Message-----
> From: Alex [mailto:harvilchuck at yahoo.com]
> Sent: Tuesday, May 23, 2006 2:14 PM
> To: hpsdr at hpsdr.org
> Subject: [hpsdr] [GIBRALTAR] An interesting link on frequency locking
> andGPS disciplining
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> I spotted this link to G4JNT's website on another SDR-related listserv.
>
> http://www.scrbg.org/g4jnt/
>
>
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/
>
>
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/


 1148439580.0