Operating Instructions Part 2

26 OEM Series™ I/O Guide MDS 05-3624A01, Rev. B
6.0 TECHNICAL REFERENCE
6.1 OEM Series™ Transceiver Specifications
MODELS
MDS OEM Series™ 900: Licensed 900 MHz Transceiver
RADIO TYPE
Synthesized, half duplex, 12.5 kHz channel spacing, split frequency, or simplex
ENVIRONMENTAL
Temperature Range: –30 to +60 degrees C
Humidity: 0 to 95% at 40 degrees C
Board Dimensions: 4.53″ W x 0.75″ H x 3.73″ D
11.51 cm W x 1.90 cm H x 9.47 cm D
Enclosed Dimensions: 6.5″ W x 1.75″ H x 5.00″ D
16.51 cm W x 4.45 cm H x 12.70 cm D
Weight: (Board version) 4.5 oz. (0.13 kg)
(Enclosed version) 1 lb. (0.45 kg)
RF Connector: BNC
Enclosure Type (if furnished): Aluminum
TRANSMITTER
Frequency Ranges (900 MHz): 928 to 960 MHz
Frequency Increments: 6.25 kHz (Standard)
5 kHz (Special)
Modulation Type: 4 level CPFSK
Carrier Power: 250 mW, 1 W, 5 W programmable
(+24 DBM, +30 dBM, +37 dBm)
Duty Cycle: 50% (100% with additional heatsinking)
Output Impedance: 50 ohms
Frequency Stability: 1.5 ppm, –30 to +60 degrees C
Channel Spacing: 12.5 kHz
Spurious and Harmonics: –60 dBc
Time-out Timer: 1 to 255 seconds
Transmitter Keying: On data
Key-up Time: 2 ms