[hpsdr] GPSDO

[John Westmoreland]

Graham,

I actually just e-mailed Said Jackson responding to him prior to e-mailing
this.

We talked about this yesterday during the conf. call.  There is a module
that is sub $300.00 that could be a candidate replacement for Excalibur.

As soon as I get my password sorted out with the Wiki I will post the files
- which are ready to post - and we will try to get an interest group going.

The result could be a new project.  As Phil pointed out in the conf. call -
we can probably directly connect the GPSTCXO module's output directly to
the Alex bus.

I think this is a cost effective solution; but I will also post this to
Time Nuts (as suggested during yesterday's call by Jeremy) - to get their
input.

I think everyone during yesterday's call agreed it has merit and is worth
further investigation.

I will take a tour with Said and Giovanni of Jackson Labs of their facility
in the near future.

73's,
John
AJ6BC

On Sat, Apr 14, 2012 at 8:01 AM, Graham / KE9H <KE9H at austin.rr.com> wrote:

>  John:
>
> We use several different Jackson Labs GPSDO models in my day-job.
>
> I  think that the discussion of a "cheap" GPSDO is in the context of
> a what a government agency would consider "cheap", not what a hobbyist
> would consider "cheap."
>
> The least expensive GPSDO that Jackson Labs sells, which is an unpackaged
> PCB, in small quantities, is slightly less than the price of a new
> assembled
> and tested Hermes.
>
> You can get a pull-out Thunderbolt on eBay for much less, as Chris
> recommends.
>
> --- Graham
>
> ==
>
>
> On 4/13/2012 2:40 PM, John Westmoreland wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
>
> HPSDR,
>
>  OK - I will ask another way.
>
>  Does anyone on this list own any of the GPSDO's from either Jackson Labs
> or Symmetricon?
> If so can you please tell how much it cost?
>
>  73's,
> John
> AJ6BC
>
> On Fri, Apr 13, 2012 at 10:53 AM, Chris Albertson <
> albertson.chris at gmail.com> wrote:
>
>>
>>
>>  On Thu, Apr 12, 2012 at 11:29 PM, John Westmoreland <
>> john at westmorelandengineering.com> wrote:
>>
>>>  ***** High Performance Software Defined Radio Discussion List *****
>>>
>>>
>>>  Erik,
>>>
>>>  Yes - I have been 'watching' these guys plus:
>>>
>>>  http://www.jackson-labs.com/
>>>
>>>  Anyone know how much the 'cheap' modules cost?
>>>
>>>
>>  If cost is important maybe you might buy a Trimble Thunderbolt on eBay.
>>  You can get them for about $120.  They have very good specs.  10Mhz
>> output.
>>
>>
>> Chris Albertson
>> Redondo Beach, California
>>
>
>
>
>
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