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
