Hi,
I may have found the problem?
It's possible that if there is no DATA to H-SEROUT, then the PIC makes up something, perhaps due to divide by zero or similar.
Here is a SEROUT of the S2M STRING before ADDSTR, where the GPS on the SLAVE starts receiving DATA, and passes it to MASTER via SPI, to be SEROUTED.

I have changed the variables in the ADDSTR PROCEDURE for better visual, and I'm guessing I've made an error?
C

 

Hi,
Update: Ooops!
I think I've figured out the answer to this thread!
I was getting mixed up between messages, and the message that should have appeared is from the REMOTE, which has to be simulated, by transmitting it Via radio, using a MACRO.
Once I remembered this, and transmitted the messages, all started working, shown here:
The black screen is being transmitted, and the green is the result
C

 

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