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Wrong satellite data with EOS receiver

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#4,683 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
cpp
Domain
mobile, networking

Research direction

Start by examining the network-connection handling for EOS receivers and compare the two attached example logs with the satellite data displayed by EOS Tools PRO. Done means Mergin Maps reports stable satellites in view and in use, with values matching the receiver’s proprietary app.

Written by the indexing model from the issue text.

Description

bug GPS

Description
When using network connection with EOS devices the satellite data is worng and doesn't match the data shown in EOS tools PRO. Mergin Maps shows only satellites in use and no satellites in view. But even this number jumps quite a lot and loops back to 0 after few values. Example logs below:

example_log_1.log

example_log_2.log

Environment
Production

Application (+ app version, build, operating system)
2026.3.0+

Steps to reproduce

  1. connect EOS receiver via network connection
  2. observe wrong data

Actual results
Wrong satellite info, doesn't match receivers proprietary app info

Expected results
Both satellites in view and in use are filled and matching receivers proprietary app info

Dominant language
C++
Stars
389
Forks
88
Avg merge
2d 7h
Merged PRs (30d)
23

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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