Receiver Sensitivity/Data Rates impact on Range?
The more sensitive the radio, the lower the power signal it can successfully receive, stretching right down to the noise floor. You can often improve your receive sensitivity, and therefore your range, by reducing data rates over the air. Receive sensitivity is a function of the transmission baud rate so, as baud rate goes down, the receive sensitivity goes up. Many radios give the user the ability to reduce the baud rate to maximize range. The receive sensitivity of a radio also improves at lower frequencies, providing another significant range advantage of 900 MHz (vs. 2.4 GHz) – as much as six to twelve dB!