[time-nuts] Re: Symmetricom XLi question

[Todd Smith]

I called the number on the website and they called me back.  They are Las
Vegas time so it was later on the day for me to call since I am EST.

I believe that it was $399.00 per unit.  It mounted in my S300 perfectly.
The only issue was that the board is close enough to the PS that I couldn't
leave a USB cable plugged in.  If I ever to reprogram it, I will have to
take it out.  In my case, I wanted a slightly different config so I
programed it before I installed it.

The lead time was just a couple of weeks.

Todd


On Wed, Sep 28, 2022, 20:43 Warren Kumari <warren at kumari.net> wrote:

>
>
>
>
> On Tue, Sep 27, 2022 at 8:18 PM, Todd Smith <time-nuts at lists.febo.com>
> wrote:
>
>> My S300 Furino GT-8031H rollover on September 18 at 00:00 UTC. There is
>> a Microsemi article that said that those GPS receivers survived the 2019
>> Number of Week rollover but the internal representation would rollover now.
>>
>> I ordered Jackson Labs units to replace them and I really like them. Very
>> solid design with superior features.
>>
>
>
> Excellent! Can I ask where you ordered them from and roughly how much they
> were?
> I've tried  contacting Jackson Labs a few times, both through the form on
> their website and via email to purchase, but haven't heard back yet.
> They look like really nice units, and I need one to replace a "Pentar
> SA101" (a Furuno on an adaptor) in my Symmetricom S250.
>
> It looks like Synergy GPS also still sells a M12M compatible board, but
> their lead time is 20 - 30 weeks.
>
> W
>
>
>> Todd
>>
>> On Tue, Sep 27, 2022, 17:20 Mark G Thomas via time-nuts <
>> time-nuts at lists.febo.com> wrote:
>>
>> Hi,
>>
>> I now have two 87-8028-2 boards, both with Furino GT-8031H on them, both
>> which get stuck for days UNLOCKED, in state "TRAIM ACTIVE". I have ordered
>> Jackson Labs M12Ms to upgrade them.
>>
>> F119 b1 s
>>
>>
>> F119 B1:
>> GPS PART NUMBER 87-8028-02
>> SOFTWARE 230-01510-04v1.20
>> FPGA 184-8024v1
>> GPS STATUS UNLOCKED
>> GPS ANTENNA OK
>> GPS ACQUISITION STATE: TRAIM ACTIVE
>>
>>
>> This might mean more XLi units showing up, and cheaper, on e-bay, if
>> these GPS units have hit some other rollover and no longer work at all.
>>
>> Info in this article was helpful, as it includes instructions for
>> displaying the web usernames and passwords if a prior owner changes them:
>> https://www.eevblog.com/forum/testgear/symmetricom-xli-license-hack/
>>
>> Mark
>>
>> On Wed, Sep 21, 2022 at 04:48:52PM -0500, Steve Krull via time-nuts
>> wrote:
>>
>> Mark,
>>
>> My XL took a good 24 hours to lock after it had been unpowered for who
>>
>> knows how long and moved half way across the country. It also has the
>> 87-8028-2 gps receiver and was not affected by the week 1024 rollover.
>>
>> It’s a shame if the rb is dead; as many have said there’s no information
>>
>> on them.
>>
>> If anyone has one to let go of, I am looking for an 87-8028-2 gps
>>
>> receiver for an XLi SAASM that I got without the receiver. A list member
>> offered me one pre-pandemic but he then seems to have gone silent.
>>
>> Steve K.
>>
>> On Sep 21, 2022, at 1:34 PM, Mark G Thomas via time-nuts <
>>
>> time-nuts at lists.febo.com> wrote:
>>
>> Hi,
>>
>> I just received an XLi from e-bay. It unexpectedly has the Rubidium
>>
>> standard, in addition to the GPS receiver 87-8028-2.
>>
>> I have not yet determined if my 87-8028-2 is affected by the week 1024
>>
>> rollover bug. After 12 hours it has finally transitioned from "SITE
>> SURVEY" to "TRAIM ACTIVE", but still not GPS locked.
>>
>> Claude -- which exact Jackson Labs part did you use?
>>
>> Unfortunately the X72 RUBIDIUM OSC is in FAULT state.
>>
>> I am interested in any recommendations about what to do about the
>>
>> failed rubidium. My next steps will be to check supply voltages and pull
>> out the 87-8028-2 to see which GPS module it has, but I was hoping it would
>> get GPS lock before I shut it down again.
>>
>> F18
>>
>>
>> F18 BOOTLOADER 192-8000
>> SOFTWARE 192-8001
>> FILE SYSTEM 192-8002V2-4
>> PROJ REV # 2-4
>> FPGA # 184-8000V65
>>
>>
>> F72
>>
>>
>> F72 CLOCK PLL LOCKED
>> CLOCK STATUS UNLOCKED GPS PRI
>> PRIMARY POWER SUPPLY OK
>> SECONDARY POWER SUPPLY OK
>> RUBIDIUM OSC FAULT
>>
>>
>> F108
>>
>> F108 OSCILLATOR CONFIG RUBIDIUM
>>
>> f60 b1 tracked
>>
>>
>> F60 B1 prn2 good tracked -153dBW
>> F60 B1 prn5 good tracked -154dBW
>> F60 B1 prn6 good tracked -155dBW
>> F60 B1 prn9 good tracked -157dBW
>> F60 B1 prn11 good tracked -154dBW
>> F60 B1 prn12 good tracked -154dBW
>> F60 B1 prn13 good tracked -196dBW
>> F60 B1 prn19 good tracked -162dBW
>> F60 B1 prn20 good tracked -154dBW
>> F60 B1 prn25 good tracked -156dBW
>> F60 B1 prn29 good tracked -156dBW
>>
>>
>> f60 b1 current
>>
>>
>> F60 B1 prn2 good current -154dBW
>> F60 B1 prn5 good current -154dBW
>> F60 B1 prn6 good current -155dBW
>> F60 B1 prn9 good current -158dBW
>> F60 B1 prn11 good current -153dBW
>> F60 B1 prn12 good current -155dBW
>> F60 B1 prn20 good current -154dBW
>> F60 B1 prn25 good current -157dBW
>> F60 B1 prn29 good current -156dBW
>>
>>
>> Mark
>>
>> On 11/25/21 5:45 PM, va2hdd at ebox.net wrote:
>>
>> Hi Martin.
>>
>> In my XLi the GPS is in option bay 1.
>>
>> As far as I know you can put it in any free option bay, you will
>> configure it in software at start up.
>>
>> In my case I had to replace the GPS receiver that was on the 87-8028-2
>> option card, there was a week 1024 rollover bug issue on it.
>>
>> Personally I would take the time to test it with an antenna, as the
>>
>> late
>>
>> production units have a more recent GPS receiver card that has no
>> rollover bug.
>>
>> In my case I used the Jackson Labs replacement board, and I warmly
>> recommend it, it works flawlessly.
>>
>> Have fun with your XLi !
>>
>> Claude VA2 HDD
>>
>>
>> On 2021-11-25 16:41, Martin Flynn wrote:
>> Picked up a Symmetricom XLi with two A/C supplies and two empty
>>
>>
>> slots.
>>
>>
>> Question #1
>> Is there a preference which of the two empty slots the GPS C/A Receiver
>> (87-8028-2) is placed in?
>>
>>
>> Question #2
>>
>> Anyone have slot covers sitting around?
>>
>> Martin
>>
>>
>> --
>> Mark G Thomas <Mark at Misty.com>, KC3DRE
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>> --
>> Mark G. Thomas <Mark at Misty.com>, KC3DRE
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