MIL-PRF-39012/74D
Voltage standing wave ratio (VSWR): From 500 MHz to 10 GHz, or approximately 80 percent of the
upper cutoff frequency of the cable, whichever is lower.
Cable group
VSWR
I
1.25 + 0.04 (F) GHz
II, IIa,
1.20 + 0.04 (F) GHz
Swept frequency VSWR test setup:
Item 6: VSWR shall be less than 1.05 +.0025F (F in GHz).
Item 16: VSWR shall be less than 1.05 +.0025F (F in GHz).
Second step of VSWR checkout procedure VSWR shall be less than 1.10 +.01F (F in GHz).
Group B inspection: VSWR shall be less than 1.08 +.017F (F in GHz).
Qualification and group C inspection: VSWR shall not exceed 1.15.
Connector durability: 500 cycles minimum at 12 cycles per minute maximum. The connector shall
meet mating characteristics and force to engage and disengage requirements.
Contact resistance: In milliohms, maximum.
Initial
After environment
Center contact:
6.0
8.0
Outer contact:
1.0
1.5
Braid to body:
1
Not applicable
Dielectric withstanding voltage at sea level: In accordance with MIL-STD-202, method 301.
Cable group
V rms (at sea level)
I
750
II, IIa
1,000
Vibration, high frequency: In accordance with MIL-STD-202, method 204, test condition D.
Shock: In accordance with MIL-STD-202, method 213, test condition C.
Thermal shock: In accordance with MIL-STD-202, method 107, test condition B, except test high
temperature shall be +85°C. High temperature shall be +200°C for connectors using +200°C cables
(see tables I and III).
Moisture resistance: Not applicable.
6
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