Radio Handles – interference with Bluetooth devices
Bluetooth devices are used for short-range personal area networks operate from 2.4 to 2.4835 GHz. Similarly, RH1200/RH15 radio-modems use the frequency range 2.4 to 2.5 GHz. To avoid interference, Bluetooth protocols divide the band into 79 channels (each 1 MHz wide) and changes channels up to 1600 times per second. Newer Bluetooth versions also feature Adaptive Frequency Hopping which attempts to detect existing signals in the ISM band, such as Wi-Fi channels, and avoid them by negotiating a channel map between the communicating Bluetooth devices. All that said, if your radio-handle range is poor, ensure that the Bluetooth module on the instrument/controller is switched off, as well as identifying any other local EMR sources which could be obliterating your signal. If in doubt, change the link-number.