FrSky R9M 2019 900MHz Long Range Smart Port Transmitter Module Support Telemetry Compatible ExpressLRS ELRS R9 Series ReceiverNote You can directly brush the ELRS program into a module and receiver then will compatible ELRS module and receiver FrSky R9 and R9M radio control system is the first FrSky long range system which works in the frequency of 900MHz The R9M module offers 4 switchable RF power outputs to so you can choose the appropriate power for different flight situations Compared to another FrSky 2 4GHz long range receiver like the L9R the R9 receiver has a longer operating range up to 10KM and above Moreover the R9 is also a redundancy receiver which can connect to another receiver to ensure the security of your aircraft Specification User ManualBrand FrSkyItem Name R9M 2019 900MHz Transmitter ModuleVin Voltage Range 6 5V 13VExternal Power Supply 6 5V 13VTelemetry Interface Smart PortUpgrade Interface Smart PortModulations PXX or CPPM auto detected RF Operating Frequency 915MHzCompatibility R9 Series ReceiversFeature 900MHz 868MHz Working Mode Long Range Low Latency and High Precision RC System 4 Optional RF Power Non EU Version Telemetry Mode 25mW Non telemetry Mode 200mW 500mW EU Version RF Power Flex 10mW 100mW 500mW 1W telemetry supported for all levels Smart Port Enabled and Support Telemetry Data Transmission How to enable disable the S Port of R9M 2019 Non EU Module For Taranis Series transmitters if you want to turn