Hi all,
i’m having an external modem for the AGI4 ,and it works really well on my device in my tractor. (Fendt 700 SCR). Someone i know i adviced the same modem but on his Topcon AG4 (and same 700 SCR) he can get a fix on 1cm , after a while, but when he looses signal (trees, a building) it takes a really long time to get back to a 1Cm fix. What does help is to set it to egnos for a few seconds and back to RTK and then it immediatly gets a 1cm fix again.
I have to point out that our recievers do not have the same firmware, mine is from 2019 and the other is a few version younger (still need to check that out)
Can the firmware be the reason for this strange behaviour? Anyone is having any ideas? Thanks in advance.
What you using and can you share code? Maybe we can see whats going on.
What code would you like to see? i can send you what it outputs on the serial monitor, but tha’ts for both the same.
in my RTU i see this on the Position tab :
Port : Serial D
Decoder : RTCM 3.x
Ref station : 1082
Link quality : 100%
Data Link Delay : 1s
Recieved messages : 130 (and adding)
corrupted messages : 0
for now i don’t have this data from the recevier where it does not work. But i do think it’s going to be the same.
I’ve found out that my RTCM datastream contains the following types
1004,1005,1007,1012,1030,1031,1032,1033,4094
are these not RTCM 2.x types ?
As far as i know i also need 1077/1087/1230 for RCTM 3.2 (or 3.x)
I tought in a other thread you said you have built a esp32 thingy modem. 
I sure did , and it functions really well 
But I don’t think the modem is the problem here , it’s working fine on all devices it’s running on.
I think I found the reason , the mountpoint I’m connected to does not provide the correct RTCM types . My topcon has old firmware and handles this signal ok . The other topcon has the newest firmware and should be getting rtcm 3.2 type signals .
Ill try tihis out today and come back to this