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Power consumption of the UHF radio modem at continuous transmission mode with 1W output power level is
less than 4500mW (refer to Table 2-1 for details).
Operating Mode / Description
Consumption
Maximum for continuous transmission with 1W output power level
< 4500 mW
Maximum for Rx Full Operation Mode
< 2000 mW
Average for Operation Mode with 30% Transmission duty cycle
< 2000 mW
Average for Operation Mode with 50% Transmission duty cycle
< 3000 mW
Sleep Mode
300 mW
Standby Mode, ordered by SLEEP input pin
500 mW
Note:
The supply voltage (pins 15 and 16 in user interface connector,) must be 4.2 to 4.5VDC to provide RF output power >500mW
(licensed operation mode).
ANTENNAS
Antenna type depends on the site requirements, and may be directional or omni-directional. Note that to sup-
port 8 miles distance range between Base station and LMR400 unit, an antenna mast should elevate the base
antenna a minimum of 20 feet above the average level of the terrain.
GENERAL SPECIFICATION
• Input Voltage: 4.2 V ± 5 %
• Power Consumption (average):
3 W – transmit with 50% duty cycle (1 W TPO)
1 W – receive mode
• Temperature:
Operation -40
o
F ... 140
o
F (-40
o
C ... +60
o
C)
Storage -40
o
F... 176
o
F (-40
o
C ... +80
o
C)
• Dimensions:
3.18 x 1.80 x 0.29/0.37 in (80.8 x 45.7 x 7.4/9.4 mm)
• Weight: 0.09 lbs (41 g)
FEATURES
• DSP-Modem
• Multi-Modulation Technologies
• Zero-IF Technologies
• Up to 115200 bps Data Rate
• Embedded Firmware Compensation for Opera-
tion and Extremely Low at High Temperatures
• Compact Design
RADIO TRANSMITTER SPECIFICATIONS
• Transmitter Output Power: +15... +30 dBm in 1
dB step / 50 Ω
• Carrier Power Stability: +1 dB / -2 dB
RADIO TRANSCEIVER SPECIFICATIONS
• Frequency Range:
LMR 400: 406 - 470 MHz
LMR400 EXT: 360 - 470 MHz
• Channel Spacing: 25/20/12.5/6.25 kHz
• Carrier Frequency Stability: ±1 ppm
• Modulation: GMSK/4FSK/DBPSK/DQPSK/
D8PSK/D16QAM
• Communication Mode: Half duplex, simplex
RADIO RECEIVER SPECIFICATIONS
• Receiver Sensitivity for DBPSK (BER 1x 10
-4
):
-113 dBm for 25 kHz Channel Spacing
-113 dBm for 20 kHz Channel Spacing
-114 dBm for 12.5 kHz Channel Spacing
-114 dBm for 6.25 kHz Channel Spacing
• Receiver Sensitivity for DQPSK (BER 1x 10
-4
):
-110 dBm for 25 kHz Channel Spacing
-110 dBm for 20 kHz Channel Spacing
-111 dBm for 12.5 kHz Channel Spacing
-111 dBm for 6.25 kHz Channel Spacing
• Receiver Dynamic Range: -119 to -10 dBm
MODEM SPECIFICATION
• Interface DSP: UART (serial port)
• Interface Connector: 16-lead Connector
• Data Speed of Serial Interface:
9600 - 115200 bps
• Data Rate of Radio Interface (25 kHz Channel Spacing)
9600 bps – DBPSK/GMSK
19200 bps – DQPSK
28800 bps – D8PSK
38400 bps – D16QAM
• Data Rate Radio Interface (20 kHz Channel Spacing)
Содержание LMR400
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