User Manual

MA 2-1 SC-SHT
Marine VHF Antenna with reduced height
DESCRIPTION
The efficiency is very high despite the small dimensions and the antenna
is fully capable of handling up to 50 W of output power.
The tapered, reduced, incapsulated ½ λ copper wire radiator together
with the chrome brass housing and stainless steel corner bracket
constitute an antenna tough and ready to cope with the corrosive
environment at the masthead or other places.
The end-fed dipole principle makes the antenna independent of ground-
plane, radials or other auxiliary arrangements.
The antenna whip should not be mounted parallel or near to other metal
parts, such as windex, supporting wires etc. Free mounting and as high
as possible is preferable, otherwise the SWR and the radiation diagram
will be influenced.
ORDERING DESIGNATIONS
TYPE PRODUCT NO.
MA 2-1 SC-SHT 110000236
SPECIFICATIONS
ELECTRICAL
MODEL MA 2-1 SC-SHT
ANTENNA TYPE Reduced ½ λ dipole, end-fed
FREQUENCY 156 – 162 MHz
IMPEDANCE Nom. 50 Ω
POLARIZATION Vertical
GAIN -1 dBi -3 dBd
BANDWIDTH 6 MHz ≤ SWR 2
SWR <1.3 @ f.res
MAX. POWER 50 W
MECHANICAL
TEMP. RANGE -30° C → +70° C
CONNECTOR UHF-female
WIND SURFACE 0.0094 m²
WIND LOAD 10.4 N @ 150 km/h
COLOUR Bright chrome
White
MATERIALS Whip : Glass fibre whip with copper wire winding,
polyethylene-covered. Bright-chrome brass.
Housing: Chrome brass
TOTAL HEIGHT Approx. 0.55 m
WEIGHT Approx. 400 g
MOUNTING With screws, rivets or binder
TYPICAL GAIN AND SWR CURVE