UHF Satcom Antenna

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UHF Satcom Antenna

The 20-30-29VM/2 is a combined Hi-Lo angle UHF Satcom Antenna designed for installation on military vehicle roof, shelter or housing via a 4 hole "CECOM" mounting plate.

The antenna comprises two co-located elements; a circularly polarized cross-dipole and a linearly polarized broadband monopole. The two elements have separate RF feeds and by manual selection of either, full hemispheric pattern coverage is provided.

The low angle is intended for elevation angles up to about 45° and the high angle for approximately 45° to zenith.

Construction is from rugged fiberglass, foam-filled for structural integrity and prevention of moisture ingress with aluminum alloy dipole elements and base housing.

Suitable for vehicular, shipborne and shelter installations
Robust Construction
Hemispherical radiation pattern coverage with separate hi and lo angle elements
All Weather operation
200 Watts CW Power handling
Designed to MIL-STD-810 environmental requirements
CECOM 4 hole mounting plate

	20-30-29VM-2
Model #	20-30-29VM/2
Brand	Cooper Antennas

Frequency	Lo Angle Hi Angle	225 - 400 MHz 225 - 400 MHz
Gain	Lo Angle Hi Angle	+3 dBiL (Typical) +8 dBiC (Typical)
VSWR	Lo Angle Hi Angle	≤ 3.0:1 ≤ 1.5:1
Impedance (nominal)	50 Ohms
Power	200 Watts
Polarization	Lo Angle Hi Angle	Linear Right Hand Circular (maximum at zenith)
Operational Temperature	-54°C to +71°C
Antenna RF Connector	Lo Angle Hi Angle	TNC Female N Female