28 Oct
2014
28 Oct
'14
9:14 p.m.
9600 baud differences in the D700 vs D7?
We are testing a cubesat with 9600 baud AX.25 uplink on VHF and it works fine with the D7 as the transmitting radio, but the satellite ignores the same commands transmitted from the D700 radio. Anyone else noticed this?
I guess we will have to put it on a scope and see if we can see the difference.
But maybe we are doing something stupid. The D700 (and D7) receive the cubesat just fine.
I knew there was a slight difference on 1200 baud with regard to pre-and-de-emphasis between the two radios, but that should not apply at 9600 which is baseband modulated.
Bob, WB4APR