[time-nuts] 5370B on eBay, carrier phase tracking GPS receiver

Didier Juges didier at cox.net
Sun Feb 18 20:49:12 EST 2007


One was sold by sierrametals (went for $250), the other by 
electronicswest (went for $104)

I remember your posting but did not associate it with these items. I bid 
on both, just in case since they were still at $20 an hour before close, 
but I was not even close to final price, in either case. That's OK, I 
certainly don't need another 5370, but I could not help it :-)

On a different subject, I just won a Novatel Superstar 2 GPS receiver 
advertised to do "carrier phase tracking". It's specification lists a 
timing accuracy of 50nS typical, which is not bad at all for a GPS that 
does not have an OCXO, I think.

I remember seeing a number of postings on time-nuts (must have been 
Bruce) advocating the increased performance of carrier phase tracking, 
but I need to educate myself about what it is and what good it can do 
for me :-)

Any feedback regarding whether I am getting something useful, or just 
another item to go in the junk box (I did not break the bank, it went 
for $0.99, and $10 shipping...)

Didier KO4BB

John Miles wrote:
> Assuming you're talking about the ones sold by "sierrametals," I think I
> mentioned a few posts ago (2/13 at 1950 PST) that the problem with an
> earlier one he sold was simply that its reference switch was set to EXT.
> That appeared to be true of the second one as well.
> The earlier one was pretty badly miscalibrated, but there didn't seem to be
> much else wrong with it, if anything.
> -- john, KE5FX

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