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L1 L2 GPS Receiver... OPUS-DB recommendation

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(@kent-mcmillan)
Posts: 11419
 

UNAVCO

> Are you able to submit your raw data files to OPUS or do you need to convert to RINEX?

OPUS-S accepts native 4000ssi DAT files. I haven't submitted DAT files to OPUS-RS for the reason that I typically use the 4000ssi as a base receiver that runs for 6 to 9 hrs and so end up with a file too long for OPUS-RS to accept. So, for submission to OPUS-RS, I convert that long file to RINEX, cut it up into 1hr files using teqc, and submit the shorter RINEX files.

UNAVCO has some useful info for the 4000ssi:

http://facility.unavco.org/software/download_transfer/trimble/trimble.html

 
Posted : October 26, 2013 8:18 am
(@kevin-samuel)
Posts: 1043
Topic starter
 

I agree Jim!

Fortunately I have a custom built Win XP Pro machine with dedicated serial ports.

Now I just need to run this plan by SHWMBO!

I am looking forward to this project. I would really like to take my kids with me (2 and 4 year old). I definitely need to do a little mission planning for the data collection and some distraction planning for my kids 🙂

 
Posted : October 26, 2013 8:28 am
(@kevin-samuel)
Posts: 1043
Topic starter
 

UNAVCO

Thank you Kent.

 
Posted : October 26, 2013 8:36 am
(@kent-mcmillan)
Posts: 11419
 

UNAVCO

BTW, I neglected to point out that the UNAVCO page shows a download link for Trimble's GPLoad utility which definitely handles 4000-series receivers and various other older Trimble hardware.

 
Posted : October 26, 2013 8:40 am
(@paul-in-pa)
Posts: 6044
Registered
 

That Is Older Than A Z-12, and L or M-12

It is L1/L2 but does not have Z Tracking. That is not the Geodetic Whopper antenna either. At best that system is worth $300.

Paul in PA

 
Posted : October 26, 2013 9:40 am
(@jim-frame)
Posts: 7277
 

UNAVCO

> BTW, I neglected to point out that the UNAVCO page shows a download link for Trimble's GPLoad utility which definitely handles 4000-series receivers and various other older Trimble hardware.

GPLoad is good, but I've been using Data Transfer successfully on Windows 7 Pro 64-bit, so I only keep GPLoad around just in case.

 
Posted : October 26, 2013 10:39 am
(@kent-mcmillan)
Posts: 11419
 

UNAVCO

> GPLoad is good, but I've been using Data Transfer successfully on Windows 7 Pro 64-bit, so I only keep GPLoad around just in case.

I suppose I could read the supporting documentation, but does Data Transfer handle the heritage devices that GPLoad does?

 
Posted : October 26, 2013 12:12 pm
(@jim-frame)
Posts: 7277
 

UNAVCO

> I suppose I could read the supporting documentation, but does Data Transfer handle the heritage devices that GPLoad does?

It's been a few years since I set it up, but as I recall all I had to do was create a new device entry with the desired connection parameters, and give it a name (I used "4000SSi"). When I want to download a 4000-series receiver, I connect the receiver to the specified serial port, power it up, and then launch Data Transfer.

The only tricky thing that comes to mind: if Data Transfer is launched before the receiver is connected and powered, the program will go through an annoying timeout cycle (a minute or so?) unless you click the Disconnect button. Either way, clicking the Connect button will get things going again once the receiver is properly connected.

 
Posted : October 26, 2013 12:21 pm
(@kent-mcmillan)
Posts: 11419
 

UNAVCO

> It's been a few years since I set it up, but as I recall all I had to do was create a new device entry with the desired connection parameters, and give it a name (I used "4000SSi"). When I want to download a 4000-series receiver, I connect the receiver to the specified serial port, power it up, and then launch Data Transfer.

Does the newer transfer software offer the option of entering station names and HI data upon download from the device? That was a useful feature of GPLoad in that you could run receivers without a data collector, keep track of the occupation times, and just enter the missing details as the files were downloaded.

 
Posted : October 26, 2013 1:17 pm
(@jim-frame)
Posts: 7277
 

UNAVCO

> Does the newer transfer software offer the option of entering station names and HI data upon download from the device?

I couldn't remember whether this was a feature of Data Transfer or not, so I just hooked up a receiver and tested it. The answer is no, unless I'm missing an option somewhere. However, for the sake of comparison I decided to test GPLoad, and was greeted with a message indicating that it's not compatible with 64-bit Windows 7. This may have been the reason I switched to Data Transfer in the first place.

I didn't try monkeying with config settings to see if I could get GPLoad to run, so it might be possible under Win7-64, but in general Data Transfer is probably the best default solution for the more recent Win OSes.

 
Posted : October 26, 2013 3:14 pm
(@kevin-samuel)
Posts: 1043
Topic starter
 

Those OPUS units from igage are very appealing.

http://x90gps.com/

I don't see their antenna in the OPUS list though?

 
Posted : October 27, 2013 8:57 am
(@kevin-samuel)
Posts: 1043
Topic starter
 

Oh I see it...

http://www.ngs.noaa.gov/ANTCAL/Antennas.jsp?manu=CHC+Navigation

 
Posted : October 27, 2013 9:19 am
(@steve-corley)
Posts: 792
 

I am looking for an excuse to purchase a few of those, but I am afraid that our days of bigg static networks are nearly over, and I don't have enough people to run the units we have now.

 
Posted : October 27, 2013 10:02 am
(@kevin-samuel)
Posts: 1043
Topic starter
 

They look like a great tool. We don't have a lot of monumentation that has been transformed to current realizations in our county. These receivers would be ideal to conduct the necessary observations to prepare such a network in the most populated corridor in our county.

If I only had $11,300:-D

 
Posted : October 27, 2013 10:59 am
(@ctompkins)
Posts: 614
Registered
 

Also...If you do decide to go with the Trimble 4000 ssi's I would also buy a null modem to usb chord. It is hard to find computers with the proper serial pin port and even if you do the operating systems is likely to kick out the connection becuase it won't recognize the data transfer (too slow). I used the null modem to usb and got it to work consistently. I think they are around $40-50 and well worth the money. Good luck with the sessions. Lots of good memories collecting OPUS-DB points.

 
Posted : October 28, 2013 3:27 am
(@geezer)
Posts: 218
Registered
 

Kevin,

I have an X-90 OPUS from igage.

Highly recommend it. SIMPLE - STRAIGHT FORWARD.

Drop me a line if you want.

email in profile

Geezer

 
Posted : October 29, 2013 5:17 am
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