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TRIVAL ANTENE d.o.o.
Bakovnik 3, 1241 Kamnik
SLOVENIA, EU
tel.: +386 (01) 8314 396
fax.: +386 (01) 8313 377
e-mail: info(at)trivalantene.si

ADS-21/4-WB

The antenna ADS-21/4-WB is wideband monopole mobile antenna covering frequency range from 30 to 90 MHz and is intended for use with mobile radio stations together with fixed antenna support type ADN-21/UHF-S or magnetic support ADM- 21/UHF-S. The antenna is composed from two parts: the radiator which is made of special strong and flexible stainless steel whip with spring at the bottom and eye protection knob on the top and the matching transformer unit, which is enclosed in fiberglass tube. Between the matching transformer and the radiator is tiltable joint enable the radiator to be tilted continuously from 0 to 90o. The antenna has standard UHF (PL-259) socket. The radiator and the matching unit are painted with UV protective polyurethane black paint.
Frequency range
Impedance
VSWR
Max. power
Gain (vs. 1/4 wave whip)
Height
Weight (without support)
Support weight
- ADN-21/UHF-S
- ADM-21/UHF-S
Cable length
Input connector 		30-90 MHz
50 ohm
< 3
5 W CW
> -8 .... -2 dB
100 cm
240 gr.

200 gr.
800 gr.
2 m
FME + BNC male
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