User's Manual

Spread Spectrum Wireless Data Transceiver User Manual
Preliminary GXM Manual Version 0.2 50
PRELIMINARY
GMX Specifications
Specification
Transmit
Frequency Range 2400 – 2483 MHz ISM Band
Spread Spectrum FHSS
Output Power 10 mW to 500 mW
Range – Line-of-sight 20 miles
Modulation 2 level GFSK
RF Data Rate Selectable speeds, 115.2 or 153.6 Kbps
Occupied bandwidth @ 60dB 345 kHz
Hopping Patterns 15 per band, 105 total, user selectable
Hopping Channels 50 to 80, user selectable out of a total of 240
Hopping Bands 7, user selectable
Frequency Zones 16 zones
RF Connector MMCX (Straight Edge)
Receiver
Sensitivity -105 dBm @ 115.2 Kbps for BER 10
-4
-104 dBm @ 153.6 Kbps for BER 10
-6
IF Selectivity
TBD dB at fc +/- 230 kHz
RF Selectivity TBD dB at 896 MHz, 935 Mhz
Dynamic Range 0 dBm 3
rd
Order Intercept Point at Input Connector
Data transmission
Error detection 32 Bit CRC, retransmit on error
Data encryption Proprietary Spread Spectrum Technology
Data interface 1200 Baud to 230.4 Kbps
Data Connector Straight 14-pin dual row header 2.0 mm spacing
Data Throughput 115.2 Kbps*
Power requirements
Supply voltage 3.3 to 5.0 VDC
Mode 3.3 VDC 5 VDC
Transmit 909 mA 600 mA
Receive 125 mA 135 mA
Idle 38 mA 19 mA
Current [mA]
Sleep 8 mA 6 mA
General Information
Operating Temperature Range
-40° C to +85° C (-40° F to +185° F)
Dimensions 50.8 mm L x 36 mm W x 9.6 mm H (2” L x 1.4” W x 0.38” H)
Weight 14 g (0.49 oz)
Humidity 0% to 95% non-condensing
* At 100% receive success rate. RF data rate setting of 2.