VHF/FM Communications Antenna

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The 21-20-63 is a rugged VHF/FM communications antenna designed for airborne applications. The antenna is suited to tactical military communication systems such as SINCGARS, having unique passive matching and tuning elements that provide excellent gain throughout the band. The fully sealed design ensures reliability in worldwide conditions of service on helicopters and subsonic aircraft. Footprint is compatible with Collins 437S-1H and Chelton 12-437 series antennas.

High gain optimized for 30 to 88 MHz
Passive matching, no tuning required
Aero-dynamic design
Light weight/ high strength
Fully environmentally sealed
SINCGARS compatible
Designed to MIL-STD-810 Environmental Conditions

	21-20-63
Model #	21-20-63
Brand	Cooper Antennas

Frequency	30-88 MHz
Gain	-12.5 dBi @ 30 MHz -6 dBi @ 88 MHz
VSWR	≤ 2.5:1
Impedance (nominal)	50 Ohms
Power	100 Watts CW
Polarization	Vertical
Antenna RF Connector	TNC Female