Guru
Joined: 07/08/2011
Location: AustraliaPosts: 6543
| Posted: 03:32am 18 Jun 2021 |
The more preamble there is, the greater the chance of interference occurring during transmission.
You should allow sufficient time for the transmitter to stabilize after enabling then send the short preamble.
I can't see what use a post-amble would be.
I am assuming that the modules are simple pass-through with no 'smarts' involved.
Sometimes, a higher baud rate and sending the data packet multiple times will be more robust.
Jim