VHF Communication Antennas VHF ... - Dallas Avionics
VHF Communication Antennas VHF ... - Dallas Avionics
VHF Communication Antennas VHF ... - Dallas Avionics
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<strong>VHF</strong> <strong>VHF</strong> <strong>Communication</strong> <strong>Antennas</strong> <strong>Antennas</strong><br />
<strong>Avionics</strong> & Accessories<br />
EDO Corp./Dorne & Margollin<br />
DM C57-1 Low Profile Metal Blade Radio<br />
Telephone Antenna<br />
The DM C57-1 antenna has achieved a design breakthrough that has<br />
not compromised performance. Previous designs were 6 to 7" high and<br />
heavier. The DM C57-1 is only three and a half inches high and weighs<br />
8 ounces.<br />
The DM C57-1 operates with all airborne radio telephone systems in<br />
the 450-470 MHz frequency range. Reduced maintenance costs are<br />
achieved through the use of this low profile, all metal blade as a result<br />
of its unequalled mechanical strength and built-in reliability. The DM<br />
C57-1 is currently in use and field proven on business and commercial<br />
aircraft. This low drag antenna has extremely high side load strength and<br />
its construction is completely sealed to prevent damage from moisture,<br />
Skydrol, or other contaminants.<br />
P/N DM C57-1<br />
Specifications<br />
Electrical<br />
FrequencyRange<br />
450 to 470 MHz<br />
VSWR<br />
< 2.0:1 454 to 459 MHz<br />
< 2.5:1 450 to 470 MHz<br />
Efficiency > 85%<br />
Impedance<br />
50 OHMS<br />
Power<br />
100 Watts<br />
Polarization<br />
Vertical<br />
Radiation Pattern<br />
Omnidirectional<br />
Gain<br />
Equal to quarter wave stub<br />
Mechanical<br />
Connector<br />
N (female)<br />
Weight<br />
8 oz. maximum (0.22 Kg)<br />
Finish<br />
White<br />
Max Air Speed<br />
0.85 Mach<br />
Temp Range<br />
-65°F to +250°F<br />
Altitude 70,000’<br />
Drag<br />
5.5 oz. @ 25,000’ @ 0.85 Mach<br />
OUTLINE DIMENSIONS<br />
Inches (Centimeters)<br />
0.218 DIA (0.55) CSK 100∞ x<br />
0.375 DIA (0.95) 4 PL<br />
1.062 TYP<br />
(2.70) 0.531 TYP<br />
(0.35)<br />
1.187<br />
(3.01)<br />
2.375<br />
(6.03)<br />
1.89 REF<br />
(4.8)<br />
0.18<br />
(0.46)<br />
3.50 MAX<br />
(8.89)<br />
0.25 R TYP<br />
(0.64)<br />
0.12<br />
(0.30)<br />
1.75<br />
(4.45)<br />
0.50 R TYP<br />
(1.27)<br />
4.9 MAX<br />
(12.45)<br />
2.18 REF<br />
(5.54)<br />
0.62<br />
(1.57)<br />
0.87<br />
(2.21)<br />
C<br />
Specifications subject to change without notice.<br />
144<br />
2 1 4 . 3 2 0 . 9 7 7 0 D a l l a s Av i o n i c s 8 0 0 . 5 2 7 . 2 5 8 1
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