This radio module is a fairly inexpensive one by Hope-RF and uses the IA4420 Universal ISM Band FSK Transceiver of Integration / Silicon Labs. It can be switched between different MHz bands.
Characteristics
• Operating voltage: 2.2 V to 5.4 V
• Current consumption, transmitting: 23 mA
• Current consumption, receiving: 14 mA
• Frequency range: 860.48 MHz to 879.51 MHz
• Transmit power: up to 4 dBm (approximately 2.5 mW)
• Sensitivity: –100 dBm (approximately 2 μV)
• Data rate: up to 115.2 kbaud
• Frequency deviation: 15 kHz to 240 kHz
• Receiver bandwidth: 67 kHz to 400 kHz
• 16 bit receive data FIFO
• Two 8 bit transmit data registers
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