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 (Updated on RFD900+)
• RX SAW filter.
• All I/O ESD protected and filtered (New on RFD900+)
• Open source firmware SiK (V1.x) / tools, field upgradeable, easy to configure.
• Multipoint software capability with MP SiK (V2.x)
• 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 nominal, +5v tolerant)
• 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 kbit/sec (User selectable, 64k default)
• UART data transfer rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200 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 operational from -73 to +123 deg C.

Package Includes::

• 2 x RFD900+ Radio Modems
• 1 x Antenna, 900MHz Quarter wave monopole 2.1dBi
• 1 x Antenna, 900MHz Right Angle Quarter wave monopole 2.1dBi
• 4 x Antennas, 900MHz Half wave dipole 3dBi
• 1 x FTDI USB cable