All the great features of the popular RFD900+, plus AES encryption and PPM passthrough! New Processor, ARM 32 bit core. Air data rate: 500kbit/s.  AES Hardware accelerated encryption. *Fully working* RC PPM Passthrough with telemetry at the same time. Fully ESD protected + filtered - Every IO port is protected and filtered. Original SiK point to point, multipoint firmware implemented. Asynchronous multipoint firmware, *Beta release* Features: Long range >40km depending on antennas and GCS setup *80km demonstrated by Edge Research labs on a balloon !, 57km in India, on Dipoles. 2 x RP-SMA RF connectors, diversity switched. 1 Watt (+30dBm) transmit power. Transmit low pass filter. > 20dB Low noise amplifier, high IP3. RX SAW filter. All I/O ESD protected and filtered. Re implemented SiK and Multipoint SiK firmware, field upgradeable, easy to configure. Small, light weight. Compatible with 3DR / Hope-RF radio modules. License free use in Australia, Canada, USA, NZ Interfaces: RF : 2 x RP-SMA connectors Serial: Logic level TTL (+3.3v) Power: +5v, ~800mA max peak (at maximum transmit power) GPIO: 6 General purpose IO (Digital, ADC, PWM capable).  Specifications: Frequency Range:  902 - 928 MHz (USA) / 915 - 928 MHz (Australia) Output Power: 1W (+30dBm), controllable in 1dB steps ( +/- 1dB @=20dBm typical ) Air Data transfer rates: 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250, 500 kbit/sec ( User selectable, 64k default ) UART data transfer rates: 9600, 19200, 38400, 57600, 115200, 400k, 921k baud  ( User selectable, 57600 default ) Output Power: 1W (+30dBm) Receive Sensitivity: >121 dBm at low data rates, high data rates (TBA) Size: 30 mm (wide) x 57 mm (long) x 12.8 mm (thick) - Including RF Shield, Heatsink and connector extremeties Weight: 14.5g Mounting: 3 x M2.5 screws, 3 x header pin solder points Power Supply: +5 V nominal, (+3.5 V min, +5.5 V max), ~800 mA peak at maximum power Temp. Range: -40 to +85 deg C, tested operation