[time-nuts] BG7TBL FA1 frequency analyzer

[Jerry Hancock]

How would this compare to the TAPR TICC Rev D? The one that has the arduino base?  About half the price I see.

Regards,

Jerry


> On Sep 2, 2019, at 5:50 AM, Christoph Kopetzky <ck at cksd.de> wrote:
> 
> Hi Mark,
> 
> interesting post.
> So is the FA1 compatible with the TimeLab or Stable32 software?
> And could I do phase noise measurements with it like the TimePod?
> 
> 
> Chris
> 
> Am 30.08.2019 um 22:57 schrieb Mark Sims:
>> (Hopefully this is not a duplicate post...  hotmail has been having issues)
>> 
>> The FA1 is a small, USB powered frequency counter.   You supply it with a 10 MHz reference and an input frequency of 1 .. 80 MHz.   It outputs a text string of the measured frequency every second.  They cost around $80 .. $120.
>> 
>> Apparently there is a PLL inside... the text string has a "PLL unlock" flag.  There is no info on how it works and I have not opened mine up.
>> 
>> I did a simple noise test on one where the input and ref clocks were from a Tbolt.  It looks like the measurement noise is around +/- 0.0002 Hz.
>> 
>> Lady Heather can now read it.  Attached is a screen capture of the noise test.
>> 
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