COM Series
Lightweight VHF & UHF
Communications
Antenna
Model COM201B
NSN# 5985-01-498-0332
(Type N Connector)
COM201B
Features
30-88 MHz Frequency Range
200 Watts Average
Vertically Polarized, Omnidirectional
Lightweight Rugged Construction
General Description
Omnidirectional
The model COM201B is a vertically polarized,
omnidirectional antenna specifically designed for
quick deployment and ease of operation. A unique
tripod leg structure allows the antenna to be mounted
directly on the ground or mounted on a standard
communications mast. The antenna covers the 30 88 MHz band without external tuning.
Designed for 200 Watts of CW power, the COM201B
has a VSWR of less than 3.5:1 at the input
connector. The antenna has an omnidirectional
radiation pattern in the azimuth plane and a figure
eight pattern in the elevation plane. Maximum
power is directed towards the horizon. Typical
antenna gain is +2 dB relative to an isotropic source.
Transportability
Adaptability
The antenna can be quickly assembled and
disassembled for transport or storage. The radiating
element of the COM201B has a threaded interconnect
at the midsection to reduce the disassembled length
to 36". The tripod legs collapse and can be either
removed or folded up parallel to the lower radiating
section. The entire assembly stows in a volume of
less than 36" long by 10" diameter.
Typical attachment to an OE-254 mast is provided
via a 3/4-10 threaded hole in the base section.
Additionally, an optional adapter can be provided for
clamp mounting to a mast with a 1.5" diameter top
section. For fixed installations, the telescoping legs
can be replaced with metallic ground radials that
connect directly to the guy wires.
Specifications
COM201B
ELECTRICAL
Frequency
Gain
VSWR
Impedance
Power
Polarization
Pattern
Azimuth
Elevation
RF Connector
COM201B
30 - 88 MHz
2 dBi Nominal
3.5:1 Max.
50 Ohms
200 W Average
Vertical
Omnidirectional
Figure Eight
MECHANICAL
Element Height
Element Diameter
Upper
Lower
Total Height
Stowed Size
Weight
Wind (guyed)
Temperature
Finish
68 Inches
1.5 Inches
3.0 Inches
105 Inches
36" x 10" Dia.
10 Lbs
100 mph
-40 to +65 Deg. C
Epoxy CARC 383 Green
Type N Female
VSWR
Typical Antenna VSWR - Ground Mounted
Frequency (MHz)
COM201B
Stowed Size 36" x 10" Dia.
ATLANTIC MICROWAVE, 58 MAIN STREET
BOLTON, MASSACHUSETTS 01740 USA
TEL (978) 779-6963 FAX (978) 779-2906
www.atlanticmicrowave.com
A Chelton Microwave Company