The C57-1 operates with all airborne radio telephone systems in the 450 – 470 MHz frequency range. Reduced maintenance costs are achieved through the use of this low profile, all metal blade as a result of its unequalled mechanical strength and built-in reliability. The C57-1 is currently in use and field proven on business and commercial aircraft. This low drag antenna has extremely high side load strength and its construction is completely sealed to prevent damage from moisture, SKYDROL, or other contaminants.
C57-1 Antenna Specifications
| Frequency range | 450 - 470 MHz |
| VSWR | |
| Less than 2.0:1 | 454 – 459 MHz |
| Less than 2.5:1 | 450 – 470 MHz |
| Gain | Equal to quarter wave stub |
| Efficiency | Greater than 85% |
| Impedance | 50 ohms |
| Polarization | Vertical |
| Radiation pattern | Omnidirectional |
| Power handling | 100 watts |
| Connectors | N female |
| Weight | 8 oz max (0.22 kg) |
| Finish | White |
| Max Air Speed | 0.85 mach |
| Temp Range | -65° F to +250° F |
| Altitude | 70,000 ft |
| Drag | 5.5 oz at 25,000 ft at 0.85 mach |
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