[time-nuts] "Vanguard Ultra precision Golden Oscillator"

Bob Camp kb8tq at n1k.org
Sun Aug 23 08:33:59 EDT 2015


A few things I would wonder about:

1) Is it 0.1 ppm over 0 to 50C (or some other range)? If not, what is the temperature stability?
2) Does it run at 3.3V -or- at 5V (pick one) or do they run equally well at either voltage?
3) Since there is no EFC, is 0.1 ppm the set tolerance? If it’s not, what is the initial accuracy?

Lots of questions, there’s not much information there. That may be due to the seller not
having the information. It also may just be because nobody ever asked. The term TCXO can
mean a variety of things to a different people ….

The most encouraging thing is that there *is* a phase noise spec on it. 


> On Aug 23, 2015, at 4:59 AM, GandalfG8--- via time-nuts <time-nuts at febo.com> wrote:
> The "Vanguard ultra precision Golden TCXO", their description not mine:-),  
> has been listed on Ebay for a while now at various frequencies, and  the 
> 0.1 ppm spec caught my eye as a possible replacement for  the around 6 or 7 
> ppm oscillator in a DDS function generator I've been  using.
> One typical current auction, for a 25MHz unit, is 111071283814.
> Has anybody tried any of these and/or come across any more data  elsewhere?
> Regards
> Nigel
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