John McMahan
  • Edwards, CO
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TGO / TSC2 12.47

Started this discussion. Last reply by John McMahan Dec 21, 2011. 2 Replies

Hello again, I'm having issues with TGO not recognizing the data collector system (calibration) on import. Anyone know how to make the message "project definition and data collector definition are…Read more →

Subject Tags: import, software, TSC2, TGO

Trimmark IIe Manual

Started this discussion. Last reply by mauricio palacios Mar 26, 2015. 8 Replies

Hey All,Does anyone have a manual to one of these Trimmark IIe or know the procedure to make this boat anchor work with a 4700 base and 5800 rover? ANYTHING would be…Read more →

Subject Tags: guide, Manual, Trimmark

JD's Pacific Crest RFM96W and Trimble 5800 Woes

Started this discussion. Last reply by adriano salviano May 25, 2014. 11 Replies

Hey all, I am trying to use a RFM96W 450-470mhz to talk to a 5800 Trimble rover. I have never had any problems with any other rover from day one, 15 years ago using 4400-4400, 4400-4700, 4700-5700,…Read more →

Subject Tags: crest, pacificcrest, pacific, CREST, trimble

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John McMahan's discussion was featured

Trimmark IIe Manual

Hey All,Does anyone have a manual to one of these Trimmark IIe or know the procedure to make this boat anchor work with a 4700 base and 5800 rover? ANYTHING would be awesome!Thanks,JohnnSee More
Apr 15
John McMahan's discussion was featured

JD's Pacific Crest RFM96W and Trimble 5800 Woes

Hey all, I am trying to use a RFM96W 450-470mhz to talk to a 5800 Trimble rover. I have never had any problems with any other rover from day one, 15 years ago using 4400-4400, 4400-4700, 4700-5700, 5700-5700, whatever work fine. Now I have a 5800 and using 9600baud pacific crest in the survey style (TSC2 V12.47) which is what I have always used, and TT450's at 9600 on the 5800 end, (which is what I have always used with everything else, NO RADIO. Hook up the Trimmark 3 4800 baud it work great.…See More
Sep 7, 2015
John McMahan's discussion was featured

Trimmark IIe Manual

Hey All,Does anyone have a manual to one of these Trimmark IIe or know the procedure to make this boat anchor work with a 4700 base and 5800 rover? ANYTHING would be awesome!Thanks,JohnnSee More
Apr 6, 2015
ePalmetto favorited John McMahan's discussion Trimmark IIe Manual
Apr 6, 2015
mauricio palacios replied to John McMahan's discussion Trimmark IIe Manual
"thanks to : DELBERT W. WEST REGISTERED PROFESSIONAL LAND SURVEYOR 107 North Dixon Street Gainesville,  Texas   76240 phones #940-665-1914 fax        #940-665-3749 westsurveyor@sbcglobal.net"
Mar 26, 2015
John McMahan's discussion was featured

Trimmark IIe Manual

Hey All,Does anyone have a manual to one of these Trimmark IIe or know the procedure to make this boat anchor work with a 4700 base and 5800 rover? ANYTHING would be awesome!Thanks,JohnnSee More
Mar 11, 2015
mauricio palacios replied to John McMahan's discussion Trimmark IIe Manual
"i need add frecuency for internal radio trimble 4700. can use this software?"
Mar 11, 2015
adriano salviano replied to John McMahan's discussion Trimmark IIe Manual
"Open front trimmark iie, it's motorola gm300. buy rib cable and use this link to see and change frequencies: http://getglitched.com/?p=1170"
Jul 28, 2014
adriano salviano replied to John McMahan's discussion JD's Pacific Crest RFM96W and Trimble 5800 Woes
"Hi Do you have pdlconf dealer? you can send to me? asalviano @ gmail.com. best regards"
May 25, 2014
Fernando Viñas replied to John McMahan's discussion JD's Pacific Crest RFM96W and Trimble 5800 Woes
"i use a rfm96w timtal protocol 4800 bauds whit a R4 trimble in 462.05 frecuency"
Nov 6, 2013
John McMahan replied to John McMahan's discussion TGO / TSC2 12.47
"Thanks Jobber,   That's fun reading but not the answer! My problem is with TSC2 v12.47 because TGO never did this before I upgraded the collector. I was hoping someone else had this issue and resolved it JD"
Dec 21, 2011
Survenator replied to John McMahan's discussion TGO / TSC2 12.47
"is this any help? (attached)"
Dec 21, 2011
John McMahan posted a discussion

TGO / TSC2 12.47

Hello again, I'm having issues with TGO not recognizing the data collector system (calibration) on import. Anyone know how to make the message "project definition and data collector definition are different, hold data collector definition"? to come up on every download? Is there a toggle swith somewhere? I had to go in and type the false lat/long to make my calib coords show up correctly as they do in the dc. It can really ruin your whole day if it isnt noticed!! Thanks,JohnnySee More
Dec 21, 2011
Jaybird replied to John McMahan's discussion Trimmark IIe Manual
"gonna keep looking but here are a few more documents i found for the Trimmark that may be of help:  (there are 5 or 6 so sort to the right)"
Nov 26, 2011
John McMahan replied to John McMahan's discussion Trimmark IIe Manual
"Justin, That would be beyond awesome!!"
Nov 26, 2011
Jaybird replied to John McMahan's discussion Trimmark IIe Manual
"gotcha...i'll keep digging and see if there's something more i can find...i'll also ask my father if he has the physical manual and if all else fails ill scan it and embed for you"
Nov 26, 2011

Profile Information

Introduction to other Surveyors. One or more sentence Bio about your Relationship with Surveying
Mostly construction surveying using GPS and Robotic
Company
JD McSnow, LLC
I have experience with the following
GPS, topographic, construction staking, topographic surveys, control network surveys, ground movement monitoring, Equipment Sales, Construction
How many years have you been surveying?
35 years, 10 at everything I do///Haven't done it all!
Most comfortable with the following types of instrumentation
Total Stations, GPS, Surveying Software, Robotics, Automatic Levels

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