FreeWave Technologies Inc. 1521131FFF 사용자 설명서

 Spread Spectrum Wireless Data Transceiver User Manual 

LUM0002AG Rev A 

Version 7.0 

56 

902 to 928 MHz 

 

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 

 

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 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) 

 

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:  140mA 
12 VDC:    75mA 
30 VDC:    55mA 

Idle current 

  6 VDC:    37mA 

12 VDC:    21mA  

30 VDC:    16mA 

Sleep current 

  6 VDC:    12mA 

12 VDC:      6mA 

30 VDC:      5mA 

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.