RDS 1200 ASYNCHRONOUS RS-232 RADIO MODEM

General

Frequency range: 138-174 MHz, 406-430 MHz, 450-475 MHz, 928-960 MHz

Emission type: 15K0F2D

Temperature range

Operating : -22 degree to +140 degree F (-30 degree to +60 degree C); Storage: -40 degree to +185 degree F (-40 degree to +75 degree C)

Dimensions: RDS 1200 (max. with flange)-12.0" x 11.87" x 3.88" (30.48 cm x 30.15 cm x 9.85 cm) RDS 1201 (w/o connectors): 9.52" x 6.52" x 3.0" (24.18 cm x 16.51 cm x 7.62 cm)

Weight: RDS 1200: 10 lbs 12 oz (4.88 kg); RDS 1201: 3 lbs 2.1 oz (1.42 kg)

Power input: 115 VAC or 230 VAC (50/60 Hz) (provision for 12 VDC backup)

Baud rate: 1200 baud (standard), 300 or 2400 baud (optional)

FSK frequencies:

Mark: 4450 Hz (2400 baud); 2100 Hz (1200 baud); 1070 Hz (300 baud)

Space: 2450 Hz (2400 baud); 1300 Hz (1200 baud); 1270 Hz (300 baud)

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RF connector: Type N, female

Control connector: 25 pin D connector (RS-232-C)

Shock stability: Per MIL-STD-810C method 516.2

Vibration stability: Per MIL-STD-810C method 514.2

Type acceptance: FCC type accepted under parts 21, 22, 90, and 94

Receiver* (refer to associated RDL Series specifications for additional information)

Sensitivity: -107 dBm (1.0 uV) for BER < 1 x 10-3 over the voltage and temperature range

Typically: -115 dBm @ 138-174 MHz; -113 dBm @ 406-430 MHz, 450-475 MHz; -112 dBm @ 928-960 MHz

Decoder type: PLL FSK demodulator

Carrier attack time: <10 mS

Turnaround time (transmit/receive): <10 mS

Transmitter* (refer to associated RDL Series specifications for additional information)

Power output: 1-2 watts (adjustable) or optional 2-4 watts (adjustable, available in VHF and UHF bands only)

Transmitter duty cycle @ 2 watts: 100% up to 77 degree F (25 degree C), 50% up to 140 degreeF (60 degree C)

Frequency stability: +/-5 ppm; +/-1.5 ppm (928-960 MHz with high stability option)

Modulation type: FSK

FSK tone frequency stability: +/-1.0%

FSK tone amplitude balance: <0.5 dBm maximum between mark and space

Harmonic distortion: <5%

RTS to CTS delay: 56 mS

*All measurements taken at antenna port.

Specifications subject to change without notice

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