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Change from CMR to RTCM
Hey Guys,
We have recently had to change from CMRx to RTCM due to new machines that only use RTCM. after many changes to our system (4800 to 9600, 12.5 to 25 spacing, all of which have helped alot) We are finding that RTCM is not working as well through our terrain as CMR did.
We work in a mountainous area, 35km*25km area. We have three bases set up north, center and south.
We also have large overhead cables at most accessible high points of the job.
The issues we are experiencing in those areas are; we have overhead cables, we are experiencing alot more multipath with the RTCM then the CMRx, also needing repeaters in areas we didnt need previously on CMRx and slow starting GPS on our R12 rovers. Also working around and in state forest
We use a SPS885 unit with a Zephyr mdl2, we use a TDL450H or Hx radios for the base on 3/4m mounted antennas. our bases are not set up near the overhead cables, and they sitting at the highest points that are accessible in our area. (not near overheads)
We are also using TDL450Ls as repeaters for our cars where we are struggling.
Im wondering, is the settings and equipment we are using the best for this terrain? We have tried sticking to trimble machines but the company want the cheaper option hence the RTCM running machines. Is there anything that can help with the multipath from the overhead cables and the mountainous area? Is there better equipment we can upgrade to? and is RTCM known for the issue mention above?
Any help would be greatly appreciated
Cheers
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