Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Rob Kimberley
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Don, Which 9390 do you have? i.e. 9390-. Have one or two manuals here. There are many variants, so a model number would be a good start. Datum's 9390 products were GPS using Trimble receivers and antennae. Rob

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Björn Gabrielsson
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Don Rob, From back in my memory - I have a feeling I have read - that some 9390s GPS receivers had trouble with GPS week rollover bugs. Not the orginal 1024 weeks but they were programmed to work within a 1024 week window. I

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Rob Kimberley
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Björn You are correct. I was working for Datum's UK rep at the time of the rollover problem. Most older units were fixed by a firmware upgrade, but some of the very old units needed a full GPS engine upgrade. I don't have any

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Mike Feher
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I have several (I think 8 or 10) of the 9390 series receivers. They all work off of 5 volt antennas, and I use an HP antenna with mine through a splitter. Some use a Rubidium, some an OCXO and some a TCXO. Most of mine have

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Rob Kimberley
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Mike, If the units are showing the wrong date, then I'm sure this due to the GPS week rollover bug. The frequency and 1PPS will be fine, but they cannot compute the right date as the 1024 bits have rolled over and either

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Mike Feher
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Rob - I agree. However, usually we all know the correct date, so, that is not an issue with me. In fact, showing the date as a total number of days in a year is confusing to me anyway. So, as long as they lock, show hours and

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Rob Kimberley
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Mike, The 3 digit days shown are because the 9390 units evolved from their IRIG time code units. IRIG time code use the format SS:MM:HH:DDD (or more usually displayed DDD:HH:MM:SS) They kept the same format for the GPS units

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread Magnus Danielson
); 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: ![EMAIL PROTECTED] Rob, The 3 digit days shown are because the 9390 units evolved from

Re: [time-nuts] HP E1938 Web Page

2007-09-12 Thread Brooke Clarke
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi: Thanks to John Miles and his HP 7470 plotter program I have .gif versions of the five E1938 drawings that were in .hpg vector format that can be viewed. These are packed into a single file E1938gifs.zip downloadable

Re: [time-nuts] DATUM 9390 Info wanted

2007-09-12 Thread David I. Emery
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY 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 gps

[time-nuts] Trimble GPS Receiver, Antenna and Shipping

2007-09-12 Thread Bruce Lanning
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I have a Trimble ACE-III GPS Receiver with Antenna and ant. Cable. I will part with it including the antenna and cable and shipping to anywhere in the continatal USA for $50.00 For further information check: