On 05/17/2012 11:53 PM, John Miles wrote:
Just picked up an interesting piece of hardware on eBay that I hadn't
encountered before, an Oscilloquartz 4532 GPS receiver as described here:
http://www.oscilloquartz.com/index.php?pageid=37
It was selling for about the same price that Thunderbolts from China have
been fetching, but it uses a nice OSA 8663 DOCXO with 1E-10/day holdover
specs. I powered it up with a standard Trimble patch antenna and it appears
to be serviceable. The all-important 1-pps LED started flashing green after
spending about 30 minutes in various red/green states.
However, while the 10 MHz output is clean and reasonably stable (ADEV near
4E-12 at t=1s), it's about 5 Hz too low. Possibly it's using a
grossly-incorrect stored position. It looks like the so-called "GUI-based
Configuration and Monitoring" software mentioned on the web page will be
needed to get the unit to lock properly. Is that available anywhere, freely
or otherwise?
Do ask Oscilloquartz directly.
Cheers,
Magnus
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