# Determing proper wireless parameters for HMTRP radio module

I'm trying to properly setup an HM-TRP FSK radio module to send and receive data the best it can at 56kbps.

I think I'm wrong with setting it up to use 600Khz "receive bandwidth" and 160Khz "modulate deviation" (I'm taking the quoted text from the HM-TRP datasheet).

When I look online, I see a formula like this:

Bandwidth = data rate + (2 times frequency deviation)


When I look in the datasheet, I see this:

Note:
Modulation index: h = Fd/Rb, Range is 0.5 - 32.
If h > 1, BW = Rb + 2Fd; If h < 1, BW = 2Rb + Fd


For the module defaults, they use:

Data rate: 9.6 Kbps