30 bytes preamble

[Benjamien]

Does the RFM69, and the Arduino library support a 30 bytes preamble ?
I have a device that is sending a RF signal with a preamble of 240 bits, which does not seem to be supported by all modules.

[Felix]

I believe it can, check the transceiver datasheet: https://www.semtech.com/products/wireless-rf/fsk-transceivers/sx1231h
The library has a hardcoded preamble, not 30bytes.