both are isolated from earth ground - but you should check. A
current limited supply would be nice for initial startup, but I don't
think you'll have any issues. You should in any case, fuse it.
Ziggy
On 11/21/2012 09:10 AM, Fabio Eboli wrote:
Thank you, Peter and Paul.
Now I see
Burt -
On the scope I see 950mv RMS with 50 ohm termination, 1.5V RMS with 1M. This is
on a 9390-6000 OCXO with the default timing output configuration, 10MHz on J7.
Hope this helps.
Paul - K9MR
On Dec 15, 2012, at 4:21 PM, Burt I. Weiner wrote:
Gang,
Does anyone have a DATUM 9390 series
I was there as well, but did not see much of interest. That might be because
Paul Swed scooped up the good stuff before I could finish the first pass :)
Nice find Paul, hope they settle down for you. Would love to see a post-flea
get together and put some faces with names, but I don't know of
I did some searching (perhaps ineffectively) of the archives, looking
for some discussion of the merits of the different GPSDO products that
we commonly see on auction sites. I've seen some discussions of
individual models, but nothing that really discusses the differences,
and why one unit
I've recently acquired one of these, primarily to use as an alternative to (and
for comparison with) my Thunderbolt. This was a DC model that was inoperative
when I received it and at $225 (price from the OEM) to replace the failed DC-DC
converter, I installed an AC supply. So far, so good. The
The GPS unit is a module, which seems to be a a Trimble SVeeSix-CM3, or
variant of some kind. It's marked 26889-81 on a sticker and 25040- -D
silk screened on the board.
Just as an interesting observation: This GPS module has two MCX
connectors, one on the top of the board for the antenna
9E 00 0F 31 25 00 81 10 03
Paul
On Jun 12, 2012, at 12:26 PM, Ziggy wrote:
The GPS unit is a module, which seems to be a a Trimble SVeeSix-CM3, or variant
of some kind. It's marked 26889-81 on a sticker and 25040- -D silk screened on
the board.
Just as an interesting observation
Well, if it's any help, on my rev E unit with the 'coarse' temperature chip,
there is a sticker on the top (near the power connector) with a bar code, a
date (3/14/05) and the Rev E designation. There's also a series of numbers that
could be a serial number and some other kind of rev designator
Actually no, it doesn't have to be the software. In my day job, I work for a
company that makes terminal servers (networked serial concentrators) and have
seen many times where USB/serial converters do not behave properly. I would bet
that choosing a different USB/serial dongle would fix the
a new message with a new subject. It's bad form to use
'reply' and change the subject. If you're going to change the subject,
start with a new and blank message.
Ziggy
On 10/25/2011 05:38 PM, Justin Pinnix wrote:
Looking at recent instances of thread-breaking tells a different story:
X-Mailer
While in Florida on business last week, fairly close to Cape Canaveral, I
stopped in at the only surplus house I could find: AstroToo in Melbourne.
Poking around there, I found several Vectron 217-9043 10MHz OCXO. I could not
readily find any info on this model/series at the time of purchase,
Hijacking my own thread back here :)
Thanks for tip - I did know about Skycraft, and I think there was another in
the Orlando area, but I wasn't able to make the trip over that way before I had
to leave town.
Back on topic though, if anyone has an old catalog, or some other source of
info on
at 18M. The link is:
http://www.pumpkinbrook.com/files/TS65-FMQ1_Manual.pdf
Ziggy
On Jan 24, 2012, at 7:09 PM, J. Forster wrote:
Ah, thanks.
I have complained to Google about that scanning issue. IMO, it's a real
problem.
In a few years, Google may have the only extant copy of some doc
I know it's generally bad form to reply to my own post, but if you downloaded
the manual already, you may want to do it again. I found a copy of the complete
schematic and updated the manual, inserting the schematic where it should be.
Ziggy
---
On Jan 25, 2012, at 9:48 PM, Ziggy wrote:
Well
.
If the included graph doesn't make it to the list, please take a look at
the auction (150508234942). I'd like to understand more of what I am am
seeing there.
Thanks!
Ziggy
Please wait
Image not available
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time-nuts mailing list -- time-nuts@febo.com
pretty graphs, it looks like the difference between units
using one vs. the other is a (relatively) minor difference in pps
jitter. Also that for those interested enough, there have been plenty of
folks that have swapped the sensor. Thanks!
Ziggy
On 10/23/2010 3:31 PM, Bob Camp wrote:
Hi
and that takes a bit.
Ziggy
On 11/6/2010 8:14 AM, David Hopkins wrote:
Gentlemen,
A question on the Thunderbolt.
Lately every time I turn the Thunderbolt off and then on again I have
to do a cold reset.
It then takes about 10-20 minutes before it is fully operational
again. This is most
Wow - yet another on-topic time-nuts discussion...
Really guys? I mean REALLY?
On Feb 4, 2011, at 8:30 AM, William H. Fite wrote:
True enough. And it certainly was not the left that condoned--or ever would
condone--leaving the stadium lights on while turning off power to hospitals
and
transmitter nearby. There are passive antennas though, and there are
in-line amps - you'd need to add the filter in between. We made these
ourselves for 439 and 1296 MHz - GPS L1 isn't much above that so with
some care it should be doable. The tuning can be finicky though :\
Ziggy
On 03/04
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