User's Manual

Spread Spectrum Wireless Data Transceiver User Manual
LUM0002AF Rev E Version 6.3 58
900 MHz Transceiver Specifications
Specification
Frequency 902 to 928 MHz
Transmit
Output Power 5mW to 1W (+30dBm) See RF transmit power settings.
Range 60 miles Line Of Sight, 0 dB antenna gain
Modulation Spread spectrum GFSK, 120 or 170 Kbps
Spreading method Frequency hopping
Occupied bandwidth @ 60dB 230 kHz
Channel Spacing 230 kHz
Receive
Sensitivity -110dBm at 10-4 bit error rate
-108dBm at 10-6 bit error rate
Selectivity -20 dB at f
c
± 115 kHz
-60 dB at f
c
± 145 kHz
System gain 140 dB
Data transmission
Data rate 115.2 kbps sustained throughput*
57.6 kbps sustained throughput* with Repeaters.
Error detection 32 Bit CRC, retransmit on error
Data encryption Substitution, dynamic key
Max link throughput 115.2 KBaud
Data interface RS-232/RS485 1200 Baud to 230.4 KBaud, async, full duplex
TTL (RF board level only)
Ethernet 10BaseT
Power requirements
Supply voltage 6 to 30 VDC
Transmit current, for 1 W power
at 100% duty cycle
6 VDC: 1 A
12 VDC: 500mA
30 VDC: 200mA
Receive current 6 VDC: 152mA
12 VDC: 86mA
30 VDC: 43mA
Idle current 6 VDC: 40mA
12 VDC: 21mA
30 VDC: 12mA
Sleep current 6 VDC: 8mA
12 VDC: 6mA
30 VDC: 3mA
Operating modes Point-to-Point
Point to-MultiPoint
Operating environment -40° C- +75° C, 0 to 95% humidity non-condensing
* At 100% receive success rate. RF data rate setting of 2.