Topcon GR-5 User Manual

P/N 7010-1004
A-13
Optional GSM/GPRS Module Details
Table A-7 lists the internal general specifications for the internal
modem connection for an optional GSM/GPRS module.
Supported
Protocols
Proprietary
PacCrest PDL
TrimTalk
Transmitter (TX)
Carrier power 10mW–1W/50 ohms
Carrier power
stability
+2dB / -3 dB
Adjacent channel
power
according to EN 300 220-1/ETS 300 113
Spurious radiations according to EN 300 220-1/ETS 300 113
Receiver (RX)
Sensitivity -116...-110 dBm (BER<10 E-3)
Common channel
rejection
>-12dB
Adjacent channel
selectivity
>60 dB @ 12.5 kHz
>70 dB @ 25 kHz
Intermodulation
attenuation
> 65 dB
Spurious radiation <2nW
Table A-7. GSM/GPRS Module Specifications
Operating systems EGSM: 900/1800 MHz;
GSM: 850/1900 MHz;
TX power 0.6 W (850 MHz); 2 W (900 MHz); 1 W (1800/1900
MHz);
Table A-6. Internal UHF Satel Modem Specifications (Continued)
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Topcon GR-5 Specifications

General

Brand	Topcon
Model	GR-5
Category	Receiver
Language	English