CD21/35/50 SERIES MOPOLE ANTENNA 118-136MHZ RFI

DESCRIPTION

The antenna base / matching circuit have been enclosed inhigh impact fibre-glass housing.

The CD21-35-50 uses a tapered 17-7PH stainless steel whipelement.

Electrically these antennas present a D.C open circuit between the ground and the centre conductor of the attached cable and a D.C short circuit between the antennaelement and ground.

The supplied cutting chart ensures the whip is always longer than required, allowing the antenna to be fine-tuned using a VSWR meter.

The cut length is for the whip section end - to- end before install.

Once cut to length, the whip can then be inserted fully and secured with the M5 grub screw.

Note: Although the antennas when tuned track closely with the cutting chart provided, the chart should be used asa guide only and it is strongly recommended that the antenna be finally tuned using a VSWR reflection test bridge
(VSWR meter).

SPECIFICATIONS
Band
118-136MHz

Tunable Bandwidth
5 MHz @ 2.0:1

Nominal Gain dBi
Unity

Tuning
Field tune to minimum VSWR using supplied chart

Power W
50

Cable and Connector
Not included, order separately. See note (2)

Whip Material
17-7 PH tapered stainless steel whip with base coil assembly

 

VHF Ground Independent Mopole - CD28 Series

Â