Operations and Maintenance Manual

70-STR1800-00 Rev K STR-1800 O&M Manual
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Front
Panel
Card
(FPC)
Main Radio ChassisFront Panel Bezel
DB-25
DB-9
Flex
Modem Data Card
(MDC)
Conn
Molex Pwr
Conn
UHF Conn
PTT
Chan
Sel (4)
Tx/Rx
Audio
Diag/Prog
I/O
RF
Antenna
13.6
VDC
Main Radio
Card
Conn
TX
RX
TXRX
Switch
Figure 2 System Overview, Single Receive Channel Models
Front
Panel
Card
(FPC)
Main Radio ChassisFront Panel Bezel
DB-25
DB-9
Flex
Enhanced
Modem Card
(EMC)
Conn
Molex Pwr
Conn
UHF Conn
PTT
Chan
Sel (4)
Tx/Rx
Audio
Diag/Prog
I/O
RF
Antenna
13.6
VDC
Main Radio
Card
÷
Conn
TX
RX1
RX2
TXRX
Switch
Figure 3 System Overview, Dual Receive Channel Model
1.3 Technical Specifications
The technical capabilities of the STR-1800 radios are summarized in the following table.
Table 1 Specifications
PARAMETER
SPECIFICATION
Frequency Range
STR-1820, STR-1820A, STR-1820, STR-1821A: 400-470 MHz (FCC/IC/Cofetel)
STR-1830: 400-470 MHz (ETSI)
STR-1835: 450-520 MHz (Australia)
STR-1840: 136-174 MHz (ETSI)
Number of Channels
16 preset channels selected from 512 factory configured frequencies
Frequency Stability
0.0001% of assigned center frequency from -30C to +60C (+25C)
Compliance
STR-1820, STR-1820A, STR-1821, STR-1821A: FCC type certified (FCC 47 CFR
90), Industry Canada
STR-1830, STR-1840: ETSI type qualified
STR-1835: Australia type qualified