Active low transmitter question

[richard]

So how does this look for basic a Tx test loop?

wont work like you think , it will tx twice once as pin goes low then again as it goes high

Telemetry mode - Transmit (TX)
GAMMA module configured as a transmitter
Operation: When configured as a transmitter the GAMMA module will automatically default to
low power sleep mode. A change on any input(s) will cause the GAMMA to wake, read all inputs
and initiate RF transmission, (multiple input changes may take place simultaneously).

data sheet