[time-nuts] Trimble Nortel GPSTM Boards
GandalfG8 at aol.com
GandalfG8 at aol.com
Thu Aug 1 04:15:52 EDT 2013
Hi Bob
It's certainly very much from the same family, these seem to be a couple of
years more recent but obviously aimed at the same spec, and I don't doubt
they're going to behave in basically the same way, but given that such
things are firmware driven that doesn't exclude possible quirks.
By way of example, I'm running this on an indoor antenna right now, not bad
but satellites do drop in and out, and at times I'm seeing very noticeable
step changes in the DAC voltage on this one as that happens.
Warren S has commented on this with the Thunderbolt so it's no great
surprise but I am a bit surprised by the extent, a Mark Sims online plot from
2012 shows some correlation on an NTGS50AA but not as noticeable as this, and
I don't recall seeing anything quite so pronounced on a Thunderbolt.
Similarly, other than scaling, the DAC voltage on PPS plots are just about
identical.
Again not a problem, but I was just curious to see if anyone had compared
the two side by side.
Regards
Nigel
GM8PZR
In a message dated 31/07/2013 22:59:31 GMT Daylight Time, lists at rtty.us
writes:
Hi
>From looking at a picture of one, it seems to have all the same "stuff" on
it as the NTGS50 era gizmos. It should behave the same way.
Bob
On Jul 31, 2013, at 5:42 PM, GandalfG8 at aol.com wrote:
> Having stuck a late bid on a recent auction for what I'd assumed was a
> Trimble Nortel NTGS50AA I then realised I'd just bought the single
board
> version, part number 4500-00-CH with the Trimble 49422-CR OCXO.
>
> That in itself wasn't a problem, except perhaps the doubts cast over my
> sanity:-), it arrived earlier today and has been running for several
hours
> now, chatting comfortably with Lady Heather, and generally settling in
nicely.
>
> However, it does prompt the question, has anyone had a chance to compare
> one of these side by side with an NTGS50AA and, if so, were there any
> obvious differences in performance?
>
> Regards
>
> Nigel
> GM8PZR
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to ht
tps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the time-nuts
mailing list