Heol Design - Bureau d'études électroniques à Lannion - Systèmes GPS

GPS receiver board for Syncserver WNRO and Unlocked status

webmaster — 2025-02-06T15:17:53Z

Hardware upgrade of GT-8031 on S200 S250 S300 S350 XLi

This high performance GPS board will replace the Furuno GT-8031 board inside the S200 S250 S300 S350 and XLi, from Symmetricom / Microsemi, with very fast Time To First Fix, and high accuracy.

It fixes the WNRO (Week Number Roll Over) issue, which cause GT-8031 GPS receivers to display wrong date and time, and bug displaying "Status: Unlocked".
Future WNRO are managued unitl year 2099.

This plug-and-play GPS board offers greater compatibility with a wider range of GNSS satellite constellations (Glonass, Galileo, Beidou, QZSS).

This board has also a USB connection for easy remote configuration.

Trimble Lassen SK2 / iQ / sQ / LP/ ACE / Condor C1919 C2626 clone replacements boards

webmaster — 2021-08-30T14:51:00Z

HEOL DESIGN is the first company to produce Trimble GPS receiver clone boards, which are based on the Copernicus II and RES-SMT-360 high performance GPS chipsets. These OEM board are designed for use in embedded and industrial applications requiring high accuracy positioning and timing information.
They can also be used as a replacement and upgrade for users of the Trimble
Lassen iQ / SQ (PN 46240-00, 46240-05, 46240-10, 46240-20, 46240-25, 54854-00, NLC-iQ-CP2)
Lassen LP (39263-10, NLC-LP-CP2),
Lassen SK2 (PN 37824-B, 38116-20, 38116-25, NLC-SKII-CP2 ) , and for Rapco / Spectracom 2804 NTP server
ACE (ACE II, ACE III PN 39818-C , 41265-00, 36576-A)
Condor C1919B (P/N 67650-00)
Condor C2626 (P/N 70896-00), with optional embedded GPS antenna
they are now EOL (end of life), and suffer the rollover bug (WNRO), displaying a wrong date.
Symmetricom MicroSemi S200 / S250 / S300 / S350 SyncServer (M12 core) , as well as the Symmetricom XLi receiver

All our clone boards have exactly the same procotol as the original Trimble boards (TSIP, NMEA, TAIP)

Also, the N024, N016 and N021 ( ACE, iQ and Lassen SKII clones) integrate a processor, for matching with parity ODD, and additional software features (including future Rollovers management).
You can buy these boards form our stock, directly by contacting us by E-mail or phone.

These boards are a fix plug-ang-play solutions for replacement of obsolete GPS boards displaying wrong date.

We can also provide Copernicus II chipset (63530-00), new & original from our Trimble stock : https://www.ebay.fr/itm/137248321259

GPS board for Tymserve 2100, Syncserver S200 S250 S300 S350 XLi BC635 BC637

webmaster — 2015-12-07T09:35:23Z

Upgrade solution for Datum Symmetricom TS2100 bugs

In January 2015, all the Datum/Symmetricom TymServe 2100 servers around the world started failing in the time displayed, and there was 1 second offset.
At May 3rd 2015, another bug occured with the TS2100, then displaying a wrong date : September 17, 1995.
Heol engineers have developed a specific firmware to replace the existing Trimble ACE III with the new N024 inside the TS2100, and found a fix for the date and time bugs.
As well as correcting these bugs, the N024 enables higher performance :
cold start 39s
hot start 2s
sensitivity -160dBm, enabling start-up in urban canyons and inside buildings
pps accuracy 100ns
almanac/ephemeris stored in Flash memory
lower power consumption
T-RAIM algorithm for high integrity of timing signals
In option, possibility to extend to Glonass, Beidou and Galileo GNSS constellations.

Many tests have been processed on this enhanced TS2100, for the current time, and also simulations for the future. These simulations showed that the 20 years offset bug will occur again since 31 October 2016 (displaying year 1997). Your Tymserve unit should be upgraded with the N024-TS board then.

Also, the N024 GPS board can upgrade and solve the bugs of BC635/BC637 and TTM635VME cards from Datum, as well as the Exac Time unit ( 9390-6000).

The N024-TS is available for sale with fast delivery, and we offer extended warranty on N024 firmware until the year 2028 (free upgrades until this year, if new bugs on the TS2100 can be solved with the N024-TS).

For Symmetricom MicroSemi S200 / S250 / S300 / S350 / XLi, please contact us for the corresponding GPS board (part number HD-8737, with rollover managed up to year 2099), or follow this link :
https://www.heoldesign.com/Plug-and-play-GPS-board-for-Syncserver-roll-over-problem?lang=en