Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes

Hi mark & all It is a 9390-52023 with a LCD & led indicators. I haven't opened it and peeked to see what kind of oscillator is in it yet. I will take a look inside tomorrow. Does anyone know what the part number breaks down too? Tammy Sent from my iPhone On Jun 9, 2013, at 22:40, "Mark C. Step

Re: [time-nuts] Austron 2200 stuck in POST loop - fixed.

Hi Paul, The original NVram is toast so if it was storing the what card was installed, it was lost long ago. The Antenna card is present. The Antenna input card is keyed so it can only fit in the bottom slot. 2 Other IO modules are present, A TTL 1PPM, 1PPS and 10 or 5 or 1 MHz output and a PP

Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes

Hi Tammy, The lock indicator on my rather ancient 9390 is one of the decimal points on the LED display. is directly connected to the Rubidium and illuminates when the Rubi is in lock. On my unit it has no direct correlation with GPS lock. Please let us know the postfix on your 9390 (9390-x)

Re: [time-nuts] Unit tests for time calculations

On 6/9/13 8:29 PM, Bill Hawkins wrote: Hi, Thanks in advance. Since this is a list for precise things, could you make your questions more precise? What sort of test cases? What sort of calculations? Do you mean conversions? What do you mean by "catching" an error - where would you c

Re: [time-nuts] Unit tests for time calculations

Hi, Thanks in advance. Since this is a list for precise things, could you make your questions more precise? What sort of test cases? What sort of calculations? Do you mean conversions? What do you mean by "catching" an error - where would you catch it? What do T1 and T2 have to do wit

[time-nuts] Unit tests for time calculations

Hello, My google-fu is failing me. Does anyone have a collection of test cases for date and time calculations? I am especially interested in catching errors when T1 comes from a different timescale than T2. Thanks in advance. ___ time-nuts mailing list

Re: [time-nuts] Austron 2200 Antenna service manual and Antenna required.

Mark, I have a NIB Austron 2021L Antenna with the accessories. I think it's an active antenna and might do the trick for you. If you're interested, contact me off list. Bill On 6/9/2013 5:45 AM, Mark C. Stephens wrote: I have been looking through the manuals I received for my 2200. In fact,

Re: [time-nuts] Austron 2200 stuck in POST loop - fixed.

Well you have quite a basket case there. The only thing you need is the a6 slot which is the antenna board. Granted you need to go into the menus and turn off what ever was in the old slots. By the way when you get to the menu it will at least give you a clue as to what the board was. If you get a

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 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

Re: [time-nuts] Datum 9390 issues & spectracom 8195a woes

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

Re: [time-nuts] Austron 2200 stuck in POST loop - fixed.

Mark Good point I missed on the last comment. Yes the ones I have run across in various places are not any better then whats in the units. On Sun, Jun 9, 2013 at 1:43 PM, paul swed wrote: > Well you have quite a basket case there. > The only thing you need is the a6 slot which is the antenna bo

[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 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

[time-nuts] Austron 2200 stuck in POST loop - fixed.

Dear all, My 2200 was stuck in a POST reboot loop. It would check, RAM, ROM RTC then say waiting for signal processor the reboots again. During troubleshooting I replaced both Zero Power NVRAM and RTC chips. I only had old ones, but they must have enough juice left and this has appeared to ha

[time-nuts] Austron Option 1281903.

Hi All, According to the configuration sheet for my Austron 2200 I am supposed to have option p/n 12811903 in slot A5. However, the slot is empty and there is no blank installed. Someone has removed the option card but I am unable to figure out what it is. I have searched the web to no avail. E

[time-nuts] Austron Antenna/1st IF Needed. (12812282)

Hi all, Anyone have a redundant Austron 2200 Antenna/1st IF assembly? (part number=~12812282) If so, I'd appreciate it if you drop me a line with your price. Many thanks, -marki Kind Regards, Mark Stephens Mark Clemens Stephens | Customer service engineer | Non-Stop Computer Ltd * +61 2 9011

[time-nuts] Austron 2200 Antenna service manual and Antenna required.

I have been looking through the manuals I received for my 2200. In fact, Marked on the front of both binders is Operation and service for My serial number! Serial number "11602Y" One section contains the complete schematic, board layout, service notes, description and parts list for the Antenna