HTCC-AB02 bandwidth + demo sketch

Dear gurus,

Just got these nice 433MHz modules, and have some questions:

1 Where can i get the code for the demo sketch that is already in units?
It’s not among examples or in GitHub repo.

2 Why is 125kHz the smallest bandwidth, no TCXO? I have old RFM98W running happily at 31.25kHz.

All the best:

/Björn