Specification

Specification

	P900	P840	P400-C1S
Frequency Range	902 to 928 MHz	840 to 845 MHz	410 to 480 MHz
Transmit Power (Software Adjustable)	100mW to 1W (20-30dBm)	100mW to 1W (20-30dBm)	100mW to 1W (20-30dBm)
Link Rate	Up to 276 kbps	Up to 345 kbps	Up to 345 kbps
Serial Baud Rate	Up to 230.4kbps asynchronous	300 bps to 230 kbps	300 bps to 230 kbps
Range	Up to 40 miles (60km)	Up to 60 miles (100 km)	Up to 60 miles (100 km)@19.2kbps
Spreading Method	Frequency Hopping Spread Spectrum (FHSS)	Frequency Hopping/Fixed Frequency, GMSK, 2GFSK, 4GFSK, QPSK	Frequency Hopping, GMSK, 2GFSK, 4GFSK, QPSK
Operating Modes	Mesh, Point-to-Point, Point-to-Multipoint, Store and Forward, Auto Routing, Self Healing, Packet Routing Modes	Point-to-Point, Point-to-Multipoint, store & Forward Repeater, Peer-to-Peer	Point-to-Point, Point-to-Multipoint, store & Forward Repeater, Peer-to-Peer
Input Voltage	DC7~35V (4-position JST-GH)	C7~35V (4-position JST-GH)	C7~35V (4-position JST-GH)
Power Consumption	Sleep < 1mA dle 3.5mA Rx: 45mA to 98mA Tx : 1000mA to 1400mA	Sleep < 1mA dle 3.5mA Rx: 45mA to 98mA Tx : 1000mA to 1400mA	Sleep < 1mA Idle 20mA Rx: 45mA to 98mA Tx Peak: 2A
Error Detection	32 bits of CRC, ARQ	32 bits of CRC, ARQ	32 bits of CRC, ARQ
Weight	44g (without antenna) 71g (with antenna)	44g (without antenna) 71g (with antenna)	44g (without antenna) 67g (with antenna)

P400 Frequency 410 to 480 MHz (Frequency Hopping)

Rate (kbps)	Power (W)	Sensitivity (dBm)	Bandwidth (kHz)	Regulatory
56.0	1	-113	60.0	None*
115.2	1	-109	150.0	None*
172.8	1	-108	180.0	None*
230.4	1	-106	230.0	None*
276.4	1	-105	230.0	None*
345.0	1	-103	400.0	None*

P840 Sensitivity (Frequency Hopping)

Rate (kbps)	Power (W)	Sensitivity (dBm)	Bandwidth (kHz)
19.2	1	-116	25
56	1	-113	60
115.2	1	-109	150
172.8	1	-108	180
230.4	1	-106	230
276.4	1	-105	280
345	1	-103	400

P900 Sensitivity (@10-4)

Rate (kbps)	Sensitivity (dBm)
57.6	-114
115.2	-112
172.8	-109
230.4	-107