MIL-DTL-28830/4D
ENGINEERING INFORMATION:
Weight:
Type II jacketing: .33 lb/ft, nominal.
Type IV jacketing: .40 lb/ft, nominal.
Minimum in-service bending diameter: 20 inches (0.51 meter).
Average power rating: See figure 2.
REQUIREMENTS:
Design and construction: See figure 1.
Flexibility and cold bend mandrel diameter:
20 inches (0.51 meter), maximum.
Test cable length: 21 feet (6.4 meters).
Impedance: 50 +2 ohms.
Attenuation: See figure 2.
Velocity of propagation: 86 percent, nominal.
Capacitance: 23.1 pf/ft, maximum.
Voltage standing wave ratio (VSWR): 1.35, maximum.
VSWR frequency range: 100 MHz to 4.2 GHz.
Dielectric withstanding voltage: 10,000 V dc.
Jacket spark:
Type II jacketing: 8,000 V rms.
Type IV jacketing: 5,000 V rms.
Acid gas generation (type IV only): 2.0, maximum.
Halogen content (type IV only): 0.2, maximum.
Smoke index (type IV only): 35, maximum.
Toxicity index (type IV only): 5, maximum.
Tensile strength and elongation:
Type II jacketing: 2,100 psi and 700 percent elongation, minimum.
Type IV jacketing: 1,200 psi and 115 percent elongation, minimum.
Part or Identifying Number (PIN):
M28830/4-II
M28830/4-IV
2
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