RF Transmitter Receiver Recommendation?

[Jerson]

I think Anand has raised an important issue with uni-directional data transmissions.

As he has mentioned, there may be no way to synchronize multiple independent transmitters. This leads to a situation where 2 or more transmitters may offload their payload over the air simultaneously. This will most certainly result in loss of information at the receive end.

To overcome this, there are a few possible approaches.

1) Send the same payload a minimum of 2 times or more spaced randomly in time so the chances of the receiver catching the un-polluted packet is better.

2) Use a 2 way link in which you implement CSMA/CD protocol.

3) Use modules that have built-in CSMA/CD protocol.

The last 2 are more expensive to implement in terms of hardware and firmware.

CSMA/CD = collision sensing multiple access with collision detection

Regards