jmfriedt
commented
3 months ago To try and separate the cause of the problem: same issue when feeding RtkGps+ with two caster messages, no hardware receiver so it is not a communication issue but a computation issue.
Older Android 7 phone
Newer Android 13 phone
As found on many discussion forums on the web, RtkGps+ does not seem to find a fix with "newer" android version. My experience: 1/ Sony Z5mini, Android 7.1.1 used when writing http://jmfriedt.free.fr/glmf_rtk2.pdf still functional, fix on the same antenna used for Centipede base station (ENSMM) after a splitter
locks in less than a couple of minutes 2/ newer Android 12 Ulephone unable to lock after about 15 min of recording GNSS signals broadcast by Centipede and received by the same local receiver on the same antenna (connection to RTCM server and recording from USB all fine), split again
Unfortunately the Sony battery is dying and can no longer be used on the field for autonomous measurements :(
Configuration should be the same on both phones (WiFi and positioning assistants disabled, Static positioning mode on L1+L2+L5 on GPS+Galileo+Beidou)