MIL-DTL-17/151A
Outer conductor integrity: (+175°C for recrystalized outer conductor cables) Four specimens,
approximately 2 feet long, shall be cut from the sample unit. The specimens shall be suspended in a heat
chamber without touching one another or the walls of the chamber and conditioned for 1 hour 30 minutes
minimum at the specified maximum operating temperature ±5ºC. Heated air shall be circulated so as to
maintain a uniform test temperature. After the conditioning period, the specimens shall be removed from
the heat chamber and conditioned at room ambient temperature for 4 hours minimum. The specimen
shall then have one end immersed into molten solder to a depth of 0.5 inch minimum for 15 seconds
minimum. The molten solder temperature shall be +230°C minimum. After the conditioning period, the
specimens shall be removed from the molten solder and conditioned at room ambient temperature for 1
hour minimum. Examine the specimens for cracks, flaws, or other damage in the outer conductor
material.
Cold bend: Not applicable.
Dimensional stability: +125°C ±5°C.
Core to Jacket: .015 inch, maximum.
Contamination: Not applicable.
Bendability: Mandrel diameter: .25 inch, maximum.
Flammability: Not applicable.
Weight: See table I.
Electrical
Test frequency: 500 MHz to 20 GHz.
Spark test: Not applicable.
Voltage withstanding: 2,000 Vrms, minimum.
Insulation resistance: Not applicable.
Corona extinction voltage: 1,000 V rms, minimum.
Characteristic impedance:
50.0 ohms ± 2.5.
Attenuation: See figure 2.
Structural return loss: See figure 3.
Capacitance:
32 pF per foot, maximum.
Capacitance stability: Not applicable.
Capacitance unbalance: Not applicable.
Transmission unbalance: Not applicable.
3
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