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VHF Communications
Frequency 116-156 MHz
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The unique design of this blade antenna offers mechanical properties
far exceeding those of any competitive product and offers the best
available electrical performance. The DMC50 is the lowest cost,
lightest weight and strongest blade antenna in current use on
commercial jet aircraft.
Features
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Maximum protection against corona and direct impact p-static |
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Unique ruggedness (withstands 10 G at resonance for one million cycles) |
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Lightning protection of associated equipment as well as antenna |
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Factory replaceable leading edge |
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An extra strength version for use on unimproved runway (stainless steel leading edge; weight increase 14 oz) (Model designation change --/S) |
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Hot air duct for use, when required, in top locations directly forward of a jet engine as on the Boeing 727 or a Douglas DC-10 |
P/N DMC50-1
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| Model |
DMC50 series VHF Antenna |
| Electrical |
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| Frequency Range |
116 to 156 MHz |
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| VSWR |
< 2:1 |
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| Power Rating |
-1 & -3/B models 1kW CW;
-2 & -11A models 500W CW @ 75,000' |
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| Impedance RF |
50 OHMS |
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| DC |
Short Circuit |
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| Polarization |
Vertical |
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| Radiation Pattern |
Omnidirectional (equivalent to a vertical stub) |
| Mechanical |
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| Weight |
< 3.5 lbs. |
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| Drag (35,000' Mach 0.89) |
3 lbs. |
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| Lightning Protection |
Exceeds the requirements of spec MIL-A-9094C |
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| Erosion Resistance |
The antennas have metal leading edges |
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| FAA |
TSO-37d, -38d,
CAT F2 ABCXXFXXSXXXXXXXXXX |
| Environmental |
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| Side Load |
12 psi |
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| Vibration |
10 G at res for 1 million cycles |
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| Shock |
30 G |
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| Hot Air Duct |
Antenna will operate 1 hr. minimum with 400° F air; withstand 500° F air continuously in atmosphere below 32° F |
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