MIL-DTL-83739/1D
REQUIREMENTS:
Dimensions and configuration: See figure 1.
Weight: 2 pounds maximum.
Finish: Black paint.
Mounting: Mounting provisions and mounting holes shall be provided that will interface with mounting plate MT-
1948/U covered by AF Drawing 59C12539, NSN 5985-00-788-6960.
Configuration: Single pole double throw (1P2T).
Sequence: Make-before-break.
Remote control: Provision shall be provided to remotely select either RF output on a full time basis by grounding
pins on the power connector. Pin D shall be grounded for remote selection of Ant 1. Pin E shall be grounded for
remote selection of Ant 2. No damage shall be caused if pins D and E are grounded simultaneously.
Nominal impedance: 50 ohms.
Frequency range: 1.02 GHz to 1.1 GHz.
Housing: Type E.
Switching rate: 38 Hz ± 5 percent.
Primary input power: 10 watts max, with the input voltage and frequency at 115 ± 7 volts and 400 ± 20 Hz,
respectively.
Transition time: Less than 25 microseconds.
Voltage standing wave ratio (VSWR):
Either output to common terminal: 1.2:1.
Transition time: 2.5:1.
Isolation (crosstalk): 30 dB minimum between output.
Insertion loss: 0.5 dB maximum.
RF power handling capability: 1 kilowatt peak pulse power with 1 percent duty cycle into a mismatched load with a
VSWR rating of 2:1.
MTBF: Design for 10,000 hours, with a guaranteed minimum of 5,000 hours.
Temperatures:
Operating: -55°C to +121°C.
Shock: -40°C to +121°C.
Part or Identifying Number (PIN): M83739/1-01.
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