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AT-640
The AT-640A/ARN Antenna is a receive-only VHF Marker Beacon antenna used on both fixed-wing and rotary-wing aircraft. The antenna will meet the requirements of Military Specification MIL-A-5999 for electrical and environmental performance. The antenna is finished with a white Skydrol resistant polyurethane paint in accordance with Military Specification MIL-C-81773. The antenna has an operating temperature of -40° F to 140° F and experiences a drag force of 0.22 lb at airspeeds of 400 mph. Precipitation static is minimized through the use of a foam-filled fiberglass construction. The foam also reduces the effects of vibration, shock and temperature extremes. | Application: | Marker Beacon | | Frequency: | 75 MHz | | Impedance: | 50 Ohms Nominal | | VSWR: | 1.5 to 1 Maximum | | Polarization: | Parallel with force and aft of aircraft | | Pattern: | Lobally Downward | | Connector: | Type "C" | | Max Weight: | 1 lb Maximum | | RF Power Capacity: | N/A | | Gain: | -10.5 dB Minimum |
Item Number: AT-640
Manufacturer: R A MILLER INDUSTRIES INC
Manufacturer Part No: AT-640
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