Well, since I can no longer easily use my True Time 468, I bought the
subject receiver on ebay. I admit to being only an engineer but the menu
set-up for initial conditions baffles me. Can anyone on here help. It seems
there are bound to be a lot of them out there. Google did not turn up
anything o
om: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Feher
Sent: Wednesday, August 31, 2005 08:35
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Datum 9390
Well, since I can no longer easily use my True Time 468, I bought the
subject receiver
Do anybody have a manual for the Datum GPS synchronized Generator.
9390-53111. ??
Or a manual for a model "close" to this?
Or know where I can find one?
Jack Sandum
Norway
[EMAIL PROTECTED]
___
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To unsu
On Mar 22, 00:00 UT, both of our Datum 9390 model GPS receivers/time
code generators started producing erroneous day of year and actual year
values.
Instead of day 81, it said 96 on the front panel, but produced day 196
in the IRIG-B time code.
They also reported the year as 2007.
Gents,
I just received a message from the local Symmetricom rep that they ARE
working on a solution!
No dates are given but there will be a fix... i.e. new E-Proms.
Cheers
Lasse
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To unsubs
Has anyone been able to come up with a burnable EPROM image for the new
Datum 9390 firmware that's supposed to fix the GPS day # bug? Before I
start delving into the phone tree at Symmetricom, I thought I'd ask if
anyone who's received one of the new EPROMs has read it yet.
-- john, KE5FX
_
Fellow clock-watchers,
I've become the proud owner of a Datum 9390-56110 GPS standard with a
rubidium oscillator. I was informed, by the seller, that the unit's firmware
kind of lost its collective mind when confronted with the GPS epoch rollover.
Would anyone happen to have a f
Eugene,
I have two of the DATUM 9390-5054 instruments with the original
antennas and 100 foot feedline that I have above tree line and well
in the clear. I have worked with many of this model receiver and my
experience is that it is not uncommon for them to begin to gather
satellites, having
In a message dated 29/06/2008 18:18:17 GMT Daylight Time,
[EMAIL PROTECTED] writes:
Do anybody have a manual for the Datum GPS synchronized Generator.
9390-53111. ??
Or a manual for a model "close" to this?
Or know where I can find one?
-
Hi Jack
I've got the manual for t
Emne: Re: [time-nuts] Datum 9390
In a message dated 29/06/2008 18:18:17 GMT Daylight Time,
[EMAIL PROTECTED] writes:
Do anybody have a manual for the Datum GPS synchronized Generator.
9390-53111. ??
Or a manual for a model "close" to this?
Or know where I can find one?
--
Nigel --
Can you send it to the upload page at http://www.ko4bb.com/cgi-bin/upload.pl
(user 'manuals', password 'manuals', without the quotes)? I could use that
one myself...
-- john, KE5FX
> -
> Hi Jack
>
> I've got the manual for the 9390-52054, don't know how similar it is but
>
In a message dated 29/06/2008 19:34:20 GMT Daylight Time, [EMAIL PROTECTED]
writes:
Can you send it to the upload page at http://www.ko4bb.com/cgi-bin/upload.pl
(user 'manuals', password 'manuals', without the quotes)? I could use that
one myself...
-
Hi John, and all
Back again,
I've uploaded the 9390 mamual to Didier's site, or at least the upload log
says I have, but it's not appearing in the "recently uploaded" files and I see
it can't be downloaded directly from there anyway.
I'll leave that one to Didier to sort out but, in the meantime will send t
m/docuwiki/doku.php
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: Sunday, June 29, 2008 2:49 PM
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] Datum 9390
>
> Back again,
>
> I've upl
In a message dated 30/06/2008 03:19:57 GMT Daylight Time, [EMAIL PROTECTED]
writes:
The 9390 manual is in the GPS_Timing directory.
Hi Didier
Many thanks for that, nice to hear it arrived ok:-), and the changes sound
good.
regards
Nigel
GM8PZR
__
Thomas,
Thomas Folkers skrev:
>On Mar 22, 00:00 UT, both of our Datum 9390 model GPS receivers/time
> code generators started producing erroneous day of year and actual year
> values.
>
>Instead of day 81, it said 96 on the front panel, but produced day 196
> in the IRIG-B time code.
>
>
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
> Behalf Of Thomas Folkers
> Sent: Monday, March 23, 2009 12:11 PM
> To: time-nuts@febo.com
> Subject: [time-nuts] Datum 9390 Problems
>
>
>
>On Mar 22, 00:00 UT
- Original Message -
From: "Thomas Folkers"
To:
Sent: Monday, March 23, 2009 3:10 PM
Subject: [time-nuts] Datum 9390 Problems
>
> On Mar 22, 00:00 UT, both of our Datum 9390 model GPS receivers/time
> code generators started producing erroneous day of year and a
On Mon, Mar 23, 2009 at 04:17:00PM -0400, phil wrote:
> Firmware for that vintage is out of the question now. It is my understanding
> that newer receiver boards solved that issue. My question, could some newer
> generic receiver module be programmed/interfaced to replace that board? I
> don't h
David,
David I. Emery skrev:
> On Mon, Mar 23, 2009 at 04:17:00PM -0400, phil wrote:
>> Firmware for that vintage is out of the question now. It is my understanding
>> that newer receiver boards solved that issue. My question, could some newer
>> generic receiver module be programmed/interfaced
On Mon, Mar 23, 2009 at 11:23:35PM +0100, Magnus Danielson wrote:
> > This Datum mini board was apparently at least one of the fixes
> > that Datum provided customers for the GPS date rollover bug - there may
> > also have been some updated firmware for the motherboard, I forget.
>
> Strange o
Everyone,
That you for the quick and knowledgeable responses.
I now know that I'm going to have to come up with a user-level
software fix. In fact I have already 'hacked' one telescope's control
system to ignore the year and doy in favor of the Linux system's
year and doy.
The other tel
Register on their site and get the firmware updates from the web site,
On Mon, Mar 23, 2009 at 3:10 PM, Thomas Folkers
wrote:
>
> On Mar 22, 00:00 UT, both of our Datum 9390 model GPS receivers/time
> code generators started producing erroneous day of year and actual year
> values.
>
> Instea
-- john, KE5FX
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
> Behalf Of Lasse
> Sent: Thursday, March 26, 2009 8:56 AM
> To: time-nuts@febo.com
> Subject: [time-nuts] Datum 9390 Problems
>
>
>
>Gents,
>I ju
All,
I just got a call from Larry Dearing of Symmetricom indicating that a
new set of PROMS are on the way. At least for the 9390-6000 unit. The
9390-52333 is just too old and should be replaced.
I want to thank all who provided input and to the individual who
forwarded my original email
Thomas Folkers skrev:
> All,
>
>I just got a call from Larry Dearing of Symmetricom indicating that a
> new set of PROMS are on the way. At least for the 9390-6000 unit. The
> 9390-52333 is just too old and should be replaced.
>
>I want to thank all who provided input and to the individu
ugene W2HX
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Burt I. Weiner
Sent: Monday, May 16, 2011 9:43 PM
To: time-nuts@febo.com
Subject: [time-nuts] DATUM 9390 Question...
Eugene,
I have two of the DATUM 9390-5054 instruments wit
AM
To: time-nuts@febo.com
Subject: [time-nuts] DATUM 9390 comments...
Eugene,
Those DAC numbers should be fine. My two units are also
9390-52054. Having the built-in screen display is a nice feature. A
bunch of years ago I was involved in a pager watch system developed
by Seiko. The pr
I just purchased a Datum 9390 off EBay. The seller is warning me that she was
told that the 9390's need some sort of update w/r/t Y2K in order for it to
operate. The seller states (and the pticures show) that the unit responds Self
Test OK during power on.
The seller is giving me the right to
Apologies, but due to PC crash, don't have original post on this request,
and can't remember who wanted them.
However, have now looked in the "store" and don't have any Datum 9390 GPS
left. Will, at some point in the future re-catalogue my manual stock and
post to the group.
Rob Kimberley
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Hi,
I was curious if anyone could tell me a little bit more about the DATUM 9390
clocks. Primarly whether it uses a propatary antenna & whether it is
indeed gps based or loran or ?? Also if anyone has a manual available
that'
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Greetings all. I have a Datum 9390-6000 with the Rubidium frequency standard
inside that has been working fine for the past year or so. It requires a
high gain antenna and I'm using a Symmetricom 58532A L1 antenna. With this
ant
Gang,
You will remember several months ago I had some stranges that I
thought were related to a defective Vectron oscillator in one of my
DATUM 9390-52054. That turned out to be a the internal switching
power supply so I replaced it with an external Cisco unit. I've done
this in three units
(Note: additional information about the receiver module has been added.)
Burt
Gang,
You will remember several months ago I had some stranges that I
thought were related to a defective Vectron oscillator in one of my
DATUM 9390-52054. That turned out to be a the internal switching
power supp
te
From: Hal Murray
Subject: Re: [time-nuts] DATUM 9390-52054 Grief again...
b...@att.net said:
> By the way, the GPS block on the DATUM overall schematic is marked, "SV6 /
> (TANS)". I suspect this means something noteworthy.
SV6 or SVeeSix is an old old old Trimble module.
> I do not recognize the GPS receiver module, but it has the following
> number on it: TNL 22880-B. I have the schematics for the overall
> DATUM 9390-25054, but the GPS module is just a block. By the way,
> the GPS block on the DATUM overall schematic is marked, "SV6 /
> (TANS)". I suspect thi
My units have all begun displaying the wrong date. A Symmetricom Field Sevice
Bulletin describes the problem but does not have a solution.
Does anyone in this group have the knowledge and experience to assist me in
modifying the firmware to correct this problem. These are beautiful little
rack
If your 9390 comes up with the correct date by itself, it is Y2k OK.
Be sure to check whether it is set for UTC or GPS time.
Doug
At 06:16 PM 3/6/2006, you wrote:
>I just purchased a Datum 9390 off EBay. The seller is warning me
>that she was told that the 9390's need some sort of up
The unit hasn't shipped yet. If it doesn't come up with the correct time,
am I S.O.L?
What type of Y2K 'upgrade' does this unit need?
Tnx
At 10:59 PM Monday 3/6/2006, you wrote:
>If your 9390 comes up with the correct date by itself, it is Y2k OK.
>Be sure to check whether it is set for UTC o
> What type of Y2K 'upgrade' does this unit need?
Have you poked around on google?
http://www.symmttm.com/community_center_view_message.asp?ID=137
I forget the details. A while ago, some field in the GPS data format rolled
over. It's similar to the Y2K problem, but GPS specific. Something l
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Hal Murray
Sent: 07 March 2006 17:35
To: karl strauss
Cc: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Datum 9390 - Y2K update?
> What type of Y2K 'upgrade' does t
ke
>
>
>
>Mike B. Feher, N4FS
>89 Arnold Blvd.
>Howell, NJ, 07731
>732-886-5960
>
>
>
>-Original Message-
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
>Behalf Of Karl F Strauss
>Sent: Monday, March 06, 2006 9:17 PM
>To: time-nuts@febo.com
&g
sday, November 16, 2006 10:56 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Datum 9390 GPS Manuals
Apologies, but due to PC crash, don't have original post on this request,
and can't remember who wanted them.
However, have now looked in the "store"
Mike,
Thanks for being so understanding.
Rob
- Original Message -
From: "Mike Feher" <[EMAIL PROTECTED]>
To: "'Discussion of precise time and frequency measurement'"
Sent: Thursday, November 16, 2006 4:00 PM
Subject: Re: [time-nuts] Datum 93
PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rob Kimberley
Sent: Thursday, November 16, 2006 5:24 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Datum 9390 GPS Manuals
Mike,
Thanks for being so understanding.
Rob
- Original Message -
From
Rob Kimberley
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Don Wisdom
Sent: 12 September 2007 04:21
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] DATUM 9390 Info wanted
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROT
scussion of precise time and frequency measurement
> Subject: [time-nuts] DATUM 9390 Info wanted
>
> ); SAEximRunCond expanded to false
> Errors-To: [EMAIL PROTECTED] RETRY
>
> Hi,
> I was curious if anyone could tell me a little bit more about the DATUM
> 9390
> clocks.
t have
any specific details available.
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Björn Gabrielsson
Sent: 12 September 2007 09:06
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] DATUM 9390 Info wanted
); SAE
-5960
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Don Wisdom
Sent: Tuesday, September 11, 2007 11:21 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] DATUM 9390 Info wanted
); SAEximRunCond expanded to false
Errors-To
ld Blvd.
Howell, NJ, 07731
732-886-5960
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Don Wisdom
Sent: Tuesday, September 11, 2007 11:21 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] DATUM 9390 Info wanted
); SAEximRunC
Behalf Of Rob Kimberley
Sent: Wednesday, September 12, 2007 7:01 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] DATUM 9390 Info wanted
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Hi Mike,
If the units are showing the
-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Feher
Sent: 12 September 2007 12:17
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] DATUM 9390 Info wanted
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Rob
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
From: "Rob Kimberley" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] DATUM 9390 Info wanted
Date: Wed, 12 Sep 2007 15:10:28 +0100
Message-ID:
Rob,
> The 3 digit days shown are because the 9390 units evol
); SAEximRunCond expanded to false
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On Tue, Sep 11, 2007 at 09:20:43PM -0600, Don Wisdom wrote:
> Hi,
> I was curious if anyone could tell me a little bit more about the DATUM 9390
> clocks. Primarly whether it uses a propatary antenna & whether it is
> indeed g
Janoff
Sent: Saturday, November 10, 2007 9:59 AM
To: time-nuts@febo.com
Subject: [time-nuts] Datum 9390-6000 Problem
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Greetings all. I have a Datum 9390-6000 with the Rubidium frequency standard
inside that has been working fine
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Hi Mitch:
It turns out that the Trimble first generation GPS receivers require a high
gain antenna or an amplifier in the feed line to work properly. So one of the
antennas that works for them may be what's needed for your r
your cable
and connections, especially if the antenna is outside.
Let me know how you get on.
Rob K (in UK)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mitchell Janoff
Sent: 10 November 2007 14:59
To: time-nuts@febo.com
Subject: [time-nuts] Datum
frequency measurement'
Subject: Re: [time-nuts] Datum 9390-6000 Problem
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Mitch -
I have about 6 of the 9390 series receivers. Most with Rubidiums and some
with OCXOs. I had 3 of them running simultaneously with a Z3801A. They
); SAEximRunCond expanded to false
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Thanks all for your help. I've replaced and shortened the coax from the
high-gain antenna to the 9390, but with no change. Still the lock and
tracking LED's are not lit. This antenna works fine with my 3816 and 3801.
My next ste
: Re: [time-nuts] Datum 9390-6000 Problem
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Thanks all for your help. I've replaced and shortened the coax from the
high-gain antenna to the 9390, but with no change. Still the lock and
tracking LED's are not lit. This ant
Well, I bought the other Datum 9390 that was for sale at the time Mike
posted this message (eBay 260177272556), and it's certainly an impressive
box of stuff for $150. There is an Efratom Rb module, a couple of power
supplies, and a bunch of cards with a wirewrapped(!) back plane.
I hooked up an
Hi everyone,
I'm a newbie here at time-nuts, but I have read the postings for a while.
I just got a Datum 9390-55184, this is a older version (88 mm height) and a 1
MHz oscillator, no oscillator output, but timecode. After an adjustment of the
oscillatorfrequency the gps receiver is tracking s
b...@att.net said:
> By the way, the GPS block on the DATUM overall schematic is marked, "SV6 /
> (TANS)". I suspect this means something noteworthy.
SV6 or SVeeSix is an old old old Trimble module.
Google finds stuff.
I picked up a couple many years ago, or at least they were described as S
Hi all
I have a datum 9390 that will pick up GPS and get the date etc but will not go
into oscillator lock state. Anyone have any suggestions on this?
Next up is the spectracom 8195a I have. Allegedly it was working when removed
from an American tower site. Sadly it doesn't see any GPS satellite
Greetings. I have Datum 9390-6000, serial #2748 running firmware ET816KP.
This is the model with the Rubidium frequency standard and it runs fine
other than it looses the satellite lock and then can't re-lock. In some
cases after power on/off sequences it will re-synch, but generally looses
the sat
Doug Wilson wrote:
My units have all begun displaying the wrong date. A Symmetricom Field Sevice
Bulletin describes the problem but does not have a solution.
Does anyone in this group have the knowledge and experience to assist me in modifying the firmware to correct this problem. These are be
Some time ago someone indicated that they had the manual in a file for this
unit (Datum 9390-52054). If it is still around could you please email it to me
(3MB) file size is O.K.
Doug Wilson (dwil...@linkline.com)
___
time-nuts mailing list -- time-n
John Miles said the following on 11/17/2007 09:06 PM:
> Well, I bought the other Datum 9390 that was for sale at the time Mike
> posted this message (eBay 260177272556), and it's certainly an impressive
> box of stuff for $150. There is an Efratom Rb module, a couple of power
> supplies, and a bun
> Yours is actually better than spec... my Efratom FRS-C manual says the
> spec is -70 at 1 Hz offset, -110 at 100 Hz, -130 at 1 kHz. The notation
> is a bit odd though -- it says "dBc/sqrt(Hz)".
You're looking at the Thunderbolt trace, I'm guessing... I'm only
getting -117 dBc/Hz at 1 kHz out
> > Yours is actually better than spec... my Efratom FRS-C manual says the
> > spec is -70 at 1 Hz offset, -110 at 100 Hz, -130 at 1 kHz. The notation
> > is a bit odd though -- it says "dBc/sqrt(Hz)".
>
> You're looking at the Thunderbolt trace, I'm guessing... I'm only
> getting -117 dBc/Hz at
Downloaded the manual not too helpful with respect to the schematic.
Further its not clear to me one way or another that the antenna was
actually the first down converter as had been the case with older systems.
A bit of a clue maybe is that the antenna could be up to 350 ft away from
the rcvr.
But
My own Trimble Bullet, and others as far as I can tell by reading this
list, is not very sensitive in general. I get much better results with a
Symmetricom than with the Bullet. For that matter, I also see more
satellites with a cheap mag-mount GPS active antenna than with the Bullet.
It is working
) and is a rubidium or
crystal oscillator installed?
-marki
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Tammy A Wisdom
Sent: Monday, 10 June 2013 3:16 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts
lf Of Tammy A Wisdom
> Sent: Monday, 10 June 2013 3:16 AM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] Datum 9390 issues & spectracom 8195a woes
>
> Hi all
> I have a datum 9390 that will pick up GPS and get the date etc but will not
> go i
Sent: 09 June 2013 19:42
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes
My own Trimble Bullet, and others as far as I can tell by reading this list,
is not very sensitive in general. I get much better results wi
iscussion of precise time and frequency measurement
>Subject: Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes
>
>My own Trimble Bullet, and others as far as I can tell by reading this
>list,
>is not very sensitive in general. I get much better results with a
>Symme
Didier,
Is it taking any current?
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Didier Juges
Sent: 10 June 2013 18:56
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Datum 9390 issues
lf Of Didier Juges
>Sent: 09 June 2013 19:42
>To: Discussion of precise time and frequency measurement
>Subject: Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes
>
>My own Trimble Bullet, and others as far as I can tell by reading this
>list, is not very sensitive in
ehalf Of Didier Juges
>Sent: 10 June 2013 18:56
>To: Discussion of precise time and frequency measurement
>Subject: Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes
>
>Rob,
>
>I have 50 feet of RG-6 in excellent condition, which is the same cable
>I
>used to
;To: 'Discussion of precise time and frequency measurement'
>Subject: Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes
>
>Didier,
>
>Is it taking any current?
>
>Rob
>
>-Original Message-
>From: time-nuts-boun...@febo.com [mailto:time-nuts
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