
AD-52
Rev.A
The antenna AD-52 is a wideband wire directional antenna intended for use with handheld or manpack radio
units in VHF frequency range from 30 to 88 MHz. The radiating element is made of wire with special
capacitive loadings along it, enable together with antenna matching transformer very low VSWR and on the
other hand directional radiation pattern and therefore relatively high gain. The antenna is mainly intended for
use in stay because of its simple construction and easy erecting . Except of the wire radiating element the
antenna is composed of matching transformer unit, watertight enclosed in a fiberglass housing with all
necessary connectors, a tape radiator for counterpoise, a 15 m long coaxial feeder made of RG-58/U with
coaxial connectors, lifting rope 25 m with weight, anchor and hammer.All together is packed in a handy linen
bag, suitable for transport.
NATO Stock Number (NSN):5985-42-0000115
Frequency range
Impedance
VSWR
Gain (vs. 1/4 l)
3 dB beamwidth azim.
3 dB beamwidth elev.
Front to back ratio
Polarization
Maximum power
Connector type
Antenna weight
Radiating wire length
Mounting height
Temperature range
30 - 90 MHz
50 ohm
< 1.8
8 - 11.5 dB
90 - 30 °
35 - 10 °
> 13 dB
VER.
100 W CW
BNC female
4.6 kg
17.8 m
8 - 10 m
-40....+70 °C
TRIVAL ANTENE d.o.o., , 12 , SLOVENIA; tel. +386-1-8314-396; fax. +386-1-8313-377Gorenjska c. 25 34 MENGES

Tape radiator
(Counterpoise)
Transformer
Lifting rope
Radiating wire
dB
-20
Coaxial cable
azimuth radiation pattern
-15
-5
-10
AD-52
dB
-20
-15
-10
-5
NATO spigot
Coax. cable
relief rope
dB
-20
-15
-10
-5
30 MHz
dB
GAIN (vs. l/4 monopole)
12
9
6
3
0
202030
40405050606070
-20
-15
-10
60 MHz
-5
dB
-20
-15
-10
-5
90 MHz
dB
-20
-15
-10
-5
elevation radiation pattern
VSWR
2.5
2
1.5
808090
f (MHz)
30
70
90
f (MHz)