Looks like I have similar StarLoc II. But I bough the item from U.S.
Yes, it takes forever to set its location, for some uncertain reason. I
did try to change UT module on it. Even using v4 instead of original v2.
No luck with this. Its behave the same way. Without that position, the
10Mhz output is stable but not correct. As a workaround, every time at
startup, I'll need to put exact precise position of that unit. I am
using TB monitor for this. As its done - its works like I am expecting.
Here is few screenshots from my unit (how its looks like in LH and TBM):
http://www.patoka.ca/OCXO/StarLocII.png
http://www.patoka.ca/OCXO/LH-StarLocII.png
And here is compare it with TB
http://www.patoka.ca/OCXO/TB-SL.png
On 2016-06-28 06:51, Bob Camp wrote:
Hi
I wonder if these were production line discards rather than pulled
from equipment parts? That would explain
the missing manufacturing date. They may still have production test
code in them rather than final ship code.
Bob
On Jun 27, 2016, at 9:32 PM, Mark Sims <[email protected]> wrote:
Recently some Datum Startloc II GPSDO's appeared on Ebay (originally
around $50, now $100). The main seller appears to be in Canada.
These are a telco type GPSDO that appears to be an attempt at a
replacement for Trimble Thunderbolts. I recently got one in and did
some playing with it (Lady Heather can now tolerate the beastie).
They run on 24V, speak TSIP, use a Motorola 8 channel UT receiver,
the RS-232 connector is a male and needs a null modem cable to connect
to a computer. Serial protocol is 9600:8N1
Ok, it's wart time:
They do an unstoppable survey when powered on. They say it will be a
14400 sample / 4 hour survey, but (thankfully) it is closer to 30
minutes. It does not appear to save the surveyed position in EEPROM...
probably doesn't even have an EEPROM.
It won't let you enter a surveyed position or work in a position hold
mode or let you change the receiver mode (2D/3D/position hold, etc).
When it enters overdetermined clock mode, the lat and lon data appear
fixed but the altitude changes.
The satellite info message reports the signal level, BUT THE AZIMUTH
AND ELEVATION FIELDS ARE 0... BASTARDS! No antenna signal level map
for you!
It always reports a temperature of 30C.
It does not report actual antenna open/short/OK status. It says
everything is always OK... nothing to worry about... move along.
The manufacturing date message reports the month as 0. The hardware
and firmware version months are OK.
You can't change the antenna elevation mask angle or signal level mask
value or motion filter settings or oscillator disciplining settings or
pretty much any fun / useful stuff. The values it sends back for the
elevation and signal level masks are random garbage. You can set the
cable delay (but loses it when powered off, seems to default to around
150 feet of coax).
It seems to send back requested data whenever it wants (if ever).
There are probably other warts, these are just the few that raised
their ugly little heads first.
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V.P.
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