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

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