Subject: [Sirgas-Mail] No.1500: Receivers Trimble 4700 and 4800 From: Laura Sanchez Dear colleagues, In the following some comments about the tracking issues with receivers Trimble 4700 and 4800. Kindest regards, Laura -------- Weitergeleitete Nachricht -------- Betreff: [IGSSTATION-6546] Re: Problem with NVSK Trimble4700 firmware Datum: Mon, 29 Feb 2016 09:28:45 -0700 Von: David Maggert An: ArdyukovDG@ipgg.sbras.ru Kopie (CC): IGS Station , TimofeevVY@ipgg.sbras.ru Dear Dmitriy, There is no solution from Trimble for the 4700 or 4800. Those receiver models are unusable unless they happen to track satellites and TEQC can fix the week during translation of the .dat to RINEX. This is something that has been discussed at UNAVCO and we have a knowledgebase article on the subject. http://facility.unavco.org/kb/questions/836/Trimble+R7+and+5700+Firmware+issue+for+receivers+with+FW+less+than+2.3 We are encourage folks to contact Trimble to discuss possible options. Since there is no solution for the 4700, it may be best for IGS station operators to change the receiver to a more modern GNSS receiver. Best Regards, David Maggert > On Feb 26, 2016, at 1:50 AM, ArdyukovDG@ipgg.sbras.ru > wrote: > > Author: Dmitriy Ardyukov. > > Hello all! > > From DOY 045 (15 Feb 2016) we have system failure in NVSK > (Novosibirsk, Russia) receiver´s date - he say on screen about current > date as 5 July 1996 and so on. As we think, this is a bug in firmware, > affected only memory for date, which was full in 1024 GPS weeks and > setting at zero (July 1996 is date that receiver was made) now. We > hope, this is not affect receiver´s precise time. > > As write many russian geodesists on some forums, this failure affected > all receivers, older than 2011: Trimble 4600, 4700, 5700 and maybe > many other models. Last firmware for 5700 (2011 year made) can > be found at official Trimble site; for 4700 last firmware > is version 1.30, from 2000 year, no have newer, of course. > > So, our solve this problem - using TEQC for converting to RINEX > with setting correct parameter of GPSweek (-week tag), last 10 daily > data file from NVSK was made by this method. > > Please send us some message, if our data files grow not useful for IGS > surveys. > > WBR, > Dmitriy. > > > _______________________________________________ > IGSSTATION mailing list > IGSSTATION@igscb.jpl.nasa.gov > https://igscb.jpl.nasa.gov/mailman/listinfo/igsstation Dear colleagues,

In the following some comments about the tracking issues with receivers Trimble 4700 and 4800.

Kindest regards,
Laura

-------- Weitergeleitete Nachricht --------

Betreff:	[IGSSTATION-6546] Re: Problem with NVSK Trimble4700 firmware
Datum:	Mon, 29 Feb 2016 09:28:45 -0700
Von:	David Maggert <dmaggert@unavco.org>
An:	ArdyukovDG@ipgg.sbras.ru
Kopie (CC):	IGS Station <igsstation@igscb.jpl.nasa.gov>, TimofeevVY@ipgg.sbras.ru <TimofeevVY@ipgg.sbras.ru>

Dear Dmitriy,

There is no solution from Trimble for the 4700 or 4800. Those receiver models are unusable unless they happen to track satellites and TEQC can fix the week during translation of the .dat to RINEX. This is something that has been discussed at UNAVCO and we have a knowledgebase article on the subject.

http://facility.unavco.org/kb/questions/836/Trimble+R7+and+5700+Firmware+issue+for+receivers+with+FW+less+than+2.3

We are encourage folks to contact Trimble to discuss possible options. Since there is no solution for the 4700, it may be best for IGS station operators to change the receiver to a more modern GNSS receiver.

Best Regards,

David Maggert

On Feb 26, 2016, at 1:50 AM, ArdyukovDG@ipgg.sbras.ru wrote:

Author: Dmitriy Ardyukov.

Hello all!

From DOY 045 (15 Feb 2016) we have system failure in NVSK (Novosibirsk, Russia) receiver´s date - he say on screen about current date as 5 July 1996 and so on. As we think, this is a bug in firmware, affected only memory for date, which was full in 1024 GPS weeks and setting at zero (July 1996 is date that receiver was made) now. We hope, this is not affect receiver´s precise time.

As write many russian geodesists on some forums, this failure affected all receivers, older than 2011: Trimble 4600, 4700, 5700 and maybe many other models. Last firmware for 5700 (2011 year made) can be found at official Trimble site; for 4700 last firmware is version 1.30, from 2000 year, no have newer, of course.

So, our solve this problem - using TEQC for converting to RINEX with setting correct parameter of GPSweek (-week tag), last 10 daily data file from NVSK was made by this method.

Please send us some message, if our data files grow not useful for IGS surveys.

WBR,

Dmitriy.

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