Description
The antenna base/matching circuit has been enclosed in high-impact fiberglass housing. The CD21-35-50 uses a tapered 17-7PH stainless steel whip element. Electrically these antennas present a D.C open circuit between the ground and the center conductor of the attached cable and a D.C short circuit between the antenna element 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 as a guide only and it is strongly recommended that the antenna be finely tuned using a VSWR reflection test bridge (VSWR meter).
Specifications:
| Whip Material | 17-7 PH tapered stainless steel whip with base coil assembly |
| Cable And Connector | Not included, order separately. See note (2) |
| Tuning | Field tune to minimum VSWR using a supplied chart |
| Band | 118-136MHz |
| Frequency Range | 133 – 163 |
| Power w | 50 |
| Nominal Gain Dbi | Unity |
| Tuned bandwidth | 5 MHz @ 2.0:1 |
| Frequency MHz | 133 – 163 |
| Brand | RFI |
Shane Dakota Muir –
Very Satisfied with the Product