[Elecraft] OT- FS Bodnar GPS Ref Osc

[brian]

Hi Wes,

It depends on what you want to do.  If you're just interested in 
programming one oscillator for a specific frequency (or the second to 
the same frequency too) then the need for more documentation is 
essentially zero.  Trial and error works.

One nice feature is being able to control the output phase difference 
between the two outputs at a fixed frequency.   No further info is 
required to do that.  I think this allows one to generate I/Q signals.

If one is interested in obtaining the two outputs at specific different 
frequencies, then more information is needed.

It is necessary to know the synthesizer setup and equations necessary to 
determine the divide integers et al.  One case comes to mind.  One user 
wanted 10 MHz on one output and 50 MHz on the second.  50MHz was not a 
choice on the drop down box for the second oscillator.  He contacted 
Bodnar and was provided with the "magic" input numbers that would do that.

Given the extra info, the utility of the unit would be greatly enhanced.

73 de Brian/K3KO


On 6/13/2016 13:16 PM, Wes Stewart wrote:
> I've had one of these since January.  I am pleased with the device, but
> the documentation and software leave much to be desired.  Actually, they
> leave everything to be desired.  ARRL had the same observation in their
> recent review. After seeing that and mention that there was new
> documentation in the works, I emailed a query and have yet to receive a
> reply.
>
> Wes  N7WS
>
> On 6/13/2016 4:59 AM, David Anderson via Elecraft wrote:
>> Yes a really useful piece of kit, has many uses around the shack or in
>> the field. For example to do the extended   temperature VFO
>> calibration for the KX3. It is tiny and low power, and very quick to
>> lock on to GPS. No wait for oven to heat up.
>>
>> There are two versions, one with even lower phase noise, though the
>> standard one is excellent.
>>
>> 73 from David GM4JJJ
>>
>>> On 12 Jun 2016, at 18:10, brian<alsopb at comcast.net>  wrote:
>>>
>>> Great for locking K3 master osc.
>>>
>>> 450Hz to 800 MHz, programmable. Low phase noise.
>>>
>>> See
>>> http://www.force12inc.com/products/gps-locked-precision-frequency-reference-low-jitter-gps-clock-450-hz-to-800-mhz-output.html
>>>
>>>
>>> Two outputs available. Second output can be a different frequency.
>>> USB powered or external power.  Once setup, computer not needed.
>>>
>>> $195 shipped.
>>>
>>> de Brian/K3KO
>>>
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