Dataradio G3 Panduan Instalasi - Halaman 19
Jelajahi secara online atau unduh pdf Panduan Instalasi untuk Modem Dataradio G3. Dataradio G3 20 halaman. Mobile radiomodem
Halaman Cetak5. Specifications
GENERAL
Frequency
Channel spacing
Frequency Control
Frequency Stability
Operating temperature
Modes of Operation
Number of channels
Supply voltage
Circuit Protection
RX Current at 13.6 VDC
TX Current at 13.6 VDC
TX/RX separation
Nominal Dimensions
Weight:
RF input/output Impedance
RF connector
Interface connector
RECEIVER
Sensitivity (12 dB SINAD)
Adjacent channel rejection
(Selectivity)
Intermodulation rejection
FM hum & noise ratio
Spurious Response
Rejection
Conducted spurious
* psophometrically weighted filter
TRANSMITTER
Power output
Duty cycle
Conducted Spurious
Frequency stability
FM hum and noise ratio
Attack time
Operation
Data rates and
Modulation type
Packet Error Rate
(for < 1% error, with PD)
Protocol
DISPLAY and CONTROLS
156-90000-508
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)
-30°C to +60°C (25°C nominal) @ 95% non-cond. RH
16 internally stored, flash-EEPROM programmable
13.8Vdc nominal (negative ground)
Internal crowbar diode for reverse polarity protection
< 650 mA Standby (with GPS receiver)
2x DE-9F D-subminiature 1xUSB 1xRJ45 (Ethernet)
40 dB @12.5 kHz, 45 dB @ 25 kHz *
30watts, adjustable down to 10 watts
50% @ full power, 30 secs. max. TX time (subject to FCC MPE limit)
-80 dBc; -80dBm in 1600MHz GPS band
40dB @ 1.5 kHz deviation, 45 dB @ 3.0 kHz deviation
Dataradio Proprietary DBA with OOB AAVL support
50 kHz (wideband)
Digital Synthesizer / uController
1.25 ppm
Half Duplex
10.9 – 16.3 VDC
15 Amp fuse external,
< 15 A
30 MHz typical
7.1" D x 6.0" W x 2.0" H
< 4.5 lbs.
50 ohms nominal
Main TX/RX: mini-UHF female
Auxiliary RX: mini-UHF female
GPS RX: SMA female
-116 dBm (< 0.35 µV) *
75 dB @50 kHz
75 dB
80 dB
-57 dBm
1.25 ppm
< 10 ms
Half duplex
128kbps RC16FSK
TBD
14
G3 Installation Guide