Show us why the public should always call a land surveyor

Where are you surveying?


🌐 Show Forums for All Locations
Land Surveyor Community

Land Surveyor

Hi fellow surveyors. I have a Carlson BRx5 GNNS L1/L2 gps rover which I normally use in areas with NTRIP base stations. I would like to know if there is a way of getting the BRx5 to communicate with my old Trimble 4000SSE base using the CMR+ data format. The normal format for data is RTCM3.1 but the Trimble 4000 can only output RTCM2. It is capable of transmitting CMR+ though. If it is at all possible to match the two, does CMR+ influence the accuracy of the fix.

Simon Griffith

You need to be a member of Land Surveyors United - Global Surveying Community to add thoughts!

Join Land Surveyors United - Global Surveying Community

Votes: 0
Email me when people reply –

Replies

  • Land Surveyor

    Dear Mr. Griffith,

    The CMR is a proprietary format created by Trimble. The structure was made public and so other manufacturers were able to utilize it. CMR+ has further enhancements for GLONASS &c. and will often cause problems when a rover of another manufacturer receives it.

    That said, if I remember correctly, the SSE was a GPS only receiver, in which case there is no benefit to using CMR+. I would try RTCM because it should have the highest probability of success.

    Good luck.

    JAC

    • Land Surveyor

      Thank you for your reply Anthony, every bit of information helps. I will persevere with RTCM.

      Regards,

      Simon

This reply was deleted.

Answer As your Facebook Page

Global Surveyor Forum

Latest Discussions by Category

How to Utilize Surveyor Forums

How to use Forums
Our forums on Land Surveyors United are here to be used as much for finding help with problems in the field as the are for you to express your opinions on anything that has to do with land surveying in general. Feel free to share anything that is on your mind, as long as it isn't meant to damage another member's reputation. Please keep it clean and help insure that everyone has the opportunity to enjoy the benefits of being part of a community that grows together.

We are committed to allowing freedom of expression for all of our members, and that includes maintaining a safe space for people with opposing views to express themselves. We get posts from all over the country and even the globe, so needless to say, people come with different viewpoints on lad surveying practices and processes. We see this diversity and variety as a real strength-- dialogue and debate are an integral part of the educational process, as well as an important tool in exploring different sides of complex issues.

All Community Hubs inside the community have their own forum for asking specific questions to other surveyors, by location, equipment type, etc.

Topics by Tags

Monthly Archives

Global Forums

Add Your Expertise

🌐 Explore Forums Based on Location

Blog Topics by Tags

Monthly Archives