MIL-DTL-23971/10A
REQUIREMENTS:
Design and construction: See figure 1.
Housing: Hermetically sealed.
Finish: Prime with MIL-PRF-23377, one coat. Paint with two coats MIL-PRF-22750, color 36231
per FED-STD-NO. 595. Paint all exterior surfaces except terminals and mounting surfaces.
Terminals:
Material:
Input and output terminals: Nickel alloy 52. Nickel is to be used only if specification cannot be met using
alternate material means.
Ground terminals: Brass, in accordance with ASTM-B121, ASTM-B36, ASTM-B16/B16M
and ASTM-B124, composition 22.
Finish: Hot tin dip finish, .0001 inch minimum in accordance with ASTM-B545, ASTM-B339.
Electrical performance characteristics:
Impedance: 50 ohms.
Frequency range: 26 to 34 MHz.
Average coupling: 3, +.2, -.0 dB.
VSWR: 1.2:1.
Insertion loss: 0.3 dB maximum.
Isolation: 25 dB minimum.
Phase balance: 90° ±1° at 30 MHz.
Amplitude balance: ±0.2 dB maximum at 30 MHz.
Power level: 1.0 watt average.
Weight: .031 pounds (14.0 grams).
Ambient temperature:
Operating: -54° to +71°C.
Storage: -65° to +95°C.
Part number: M23971/10-(dash number from figure 1).
Custodians:
Preparing activity:
Army - CR
DLA - CC
Navy - EC
Air Force - 11
(Project 5985-1227-10)
DLA - CC
Review activities:
Navy - AS, MC, OS
2