156-90000-508
G3
Installation Guide
14
5. Specifications
GENERAL
Frequency
TX 792 – 794 & 797 - 803 MHz ( guard band and WB channels 121-140),
RX 762-764 & 767 - 773 MHz ( guard band paired at 30MHz and channels 1-120)
Channel spacing
50 kHz (wideband)
Frequency Control
Digital Synthesizer / uController
Frequency Stability
1.25 ppm
Operating temperature
-30°C to +60°C (25°C nominal) @ 95% non-cond. RH
Modes of Operation
Half Duplex
Number of channels
16 internally stored, flash-EEPROM programmable
Supply voltage
13.8Vdc 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
< 15 A
TX/RX separation
30 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
Interface connector
2x DE-9F D-subminiature 1xUSB 1xRJ45 (Ethernet)
RECEIVER
Sensitivity (12 dB SINAD)
-116 dBm (< 0.35 µV) *
Adjacent channel rejection
(Selectivity)
75 dB @50 kHz
Intermodulation rejection
75 dB
FM hum & noise ratio
40 dB @12.5 kHz, 45 dB @ 25 kHz *
Spurious Response
Rejection
80 dB
Conducted spurious
-57 dBm
* psophometrically weighted filter
TRANSMITTER
Power output
30watts, adjustable down to 10 watts
Duty cycle
50% @ full power, 30 secs. max. TX time (subject to FCC MPE limit)
Conducted Spurious
-80 dBc; -80dBm in 1600MHz GPS band
Frequency stability
1.25 ppm
FM hum and noise ratio
40dB @ 1.5 kHz deviation, 45 dB @ 3.0 kHz deviation
Attack time
< 10 ms
Operation Half
duplex
Data rates and
Modulation type
128kbps RC16FSK
Packet Error Rate
(for < 1% error, with PD)
TBD
Protocol
Dataradio Proprietary DBA with OOB AAVL support
DISPLAY and CONTROLS