Electronics > Projects, Designs, and Technical Stuff
3 Dollar Precision Frequency Standard
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mtdoc:
Put this in a box last night. Now I have a cheap sanity check frequency standard. Yeah! Thanks Paulie for the idea.

neslekkim:

--- Quote from: mtdoc on July 01, 2015, 03:27:51 am ---I bought a set of these today.  This looks like a fun project and it will give me an excuse to learn how to use AVRdude which I've been meaning to do for a while.

--- End quote ---

Hm, those tcxo's seems cheap, but the seller uses GSP :(, $29.34 for shipping..
neslekkim:
Do anyone have a link to this frequency counter?, found some on ebay, but most are pic based?
netdudeuk:
There are loads of them on eBay. However, there seems to be a problem with my 2.4GHz version where once the output of the TCXO gets down to a certain frequency, the counter always shows the second harmonic and not the actual frequency, even though my scope shows the correct value.

I've posted about this earlier in this thread but no one has suggested possible causes or solutions for this.  I'd still welcome input from those more experienced, please.
neslekkim:
yes, there are loads, mostly pic based, and I wonder if the claims are unrealistic, for instance:

up to 1.1ghz:
http://www.ebay.com/itm/181662710870
up to 2.4ghz:
http://www.ebay.com/itm/181806842808

etc..
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