MDS 05-2708A01, Rev. D MDS TransNET I&O Guide 67
RF CHARACTERISTICS (TNC RF Connector)
TRANSMITTER:
Power Output
(at antenna connector): 0.1 to 1.0 Watt (+20 dBm to +30 dBm),
set by user
Duty Cycle: Continuous
Modulation Type: Binary CPFSK
Output Impedance: 50 Ohms
Spurious: –49 dBm, 216 MHz–960 MHz
–41 dBm above 960 MHz
RECEIVER:
Type: Double-conversion superheterodyne
Sensitivity: –108 dBm @ 10
–6
BER
Intermodulation: 54 dB minimum (EIA)
Desensitization: 75 dB
Spurious: 70 dB minimum
Bandwidth: 200 kHz
Interference Ratio
(SINAD degraded by 3dB): Co-channel: –10 dB
Adjacent channel: +30 dB
Two channels away: +40 dB
Three channels away: +48 dB
Time Required to Synchronize
with Master Radio: 0.5 seconds (typical)
10.2 Product Specifications—2.4 GHz
GENERAL
Frequency Band: 2401.6–2477.8 MHz ISM band
A: 2401.6 MHz–2427.0 MHz
B: 2427.2 MHz–2452.6 MHz
C: 2452.8 MHz–2478.2 MHz
Subdivided into eight 3 MHz zones.
Hop Pattern: Based on network address
Frequency Stability: ±1.5 ppm
Half-Duplex Operation: ±1.6 MHz TX/RX split
Network Addresses: 65,000
Temperature Range: –40° C to +70° C
Humidity: <95% RH at +40° C; non-condensing
Primary Power: 13.8 Vdc, Nominal (6–30 Vdc range)
Current Draw
(typical @ 27 dBm):
Transmit: 510 mA @ 13.8 Vdc
Receive: 100 mA @ 13.8 Vdc
Sleep Mode (typical): ≤ 3 mA @ 13.8 Vdc
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