User's Manual

122 20130-005
G3 Installation Guide
22
5. Specifications
GENERAL
UHF 800 MHz 900 MHz
1
Frequency
403 - 460MHz
2
,
450 - 512 MHz
TX 806 - 824 MHz,
RX 851 - 869 MHz
TX 896 - 902 MHz,
RX 935 - 941 MHz
Channel spacing 12.5, 20 or 25 kHz
Frequency Control Digital Synthesizer / uController
Frequency Stability 1.5 ppm
Operating temperature -30° C to +60° C (25° C nominal) @ 95% non-cond. RH
Mode of Operation Half Duplex
Number of channels 16 internally stored, flash-EEPROM programmable
Supply voltage 13.6Vdc nominal (negative ground)
10.9 – 16.3 VDC
Circuit Protection 15 Amp fuse external,
Internal crowbar diode for reverse polarity protection
RX Current at 13.6 VDC
< 650 mA Standby (with GPS receiver)
TX Current at 13.6 VDC < 12 A < 12 A < 10 A
TX/RX separation any, 5 MHz typical 45 MHz typical 39 MHz typical
Nominal Dimensions 7.1” D x 6.0” W x 2.0” H
Weight: < 4.5 lbs.
RF input/output Impedance 50 ohms nominal
RF connector Main TX/RX: mini-UHF female
Auxiliary RX: mini-UHF female
GPS RX: SMA female (Not installed for G3 Lite version)
Interface connector 3x DE-9F D-subminiature
RECEIVER
Sensitivity (12 dB SINAD)
-116 dBm (< 0.35 µV) *
Adjacent channel rejection
(Selectivity)
75 dB @ 25 kHz, 65 dB @ 12.5 kHz 63 dB @ 12.5 kHz
Intermodulation rejection
75 dB
FM hum & noise ratio
>40 dB @ 12.5 kHz, >45 dB @ 25 kHz * >40 dB @ 12.5 kHz *
Spurious Response
Rejection
>80 dB
Conducted spurious -57 dBm
* psophometrically weighted filter
TRANSMITTER
Power output UHF = 10-40 watts 800 MHz = 10-35 watts 900 MHz = 10-25 watts
Duty cycle 20% @ full power, 30 sec. max. TX time (subject to FCC MPE limit)
Conducted Spurious > -80 dBc
Frequency stability 1.5 ppm
FM hum and noise ratio >40dB @ 1.5 kHz deviation, >45 dB @ 3.0 kHz deviation
Attack time < 10 ms
1
WARNING: 901 - 902 MHz is reserved for use outside US and Canada
2
WARNING
:
The frequency band 406 to 406.1 MHz is reserved for use by distress beacons and should not
be programmed into the unit.