TELESCOPING MAST

The Comet CHA-250B is a newly design broadband vertcal requiring no ground radials.

this antenna is extremely easy to assemble, requires no tuning or adjustmnets and VSWR is under 1.6:1 continuosly from 3.5MHz-57MHz

it is not a 1/4 wave vertical, but an end-fed long wire type antenna with a matching transformer in a vertical position.

Broadband:

TX: 3.5-57MHz

RX: 2.0-90MHz

146MHz 6.5dBi
446MHz 9.0dBi
1200MHz 13.5dBi
VSWR: 1.5:1 or less
Max Power:150W/100W 1200MHz
Length: 9′ 8″.
Connector:N-Type
Construction:Heavy-duty fiberglass, 2 sections

SS500: 0.5 to 500MHz

Dimensions:46Wx27Hx57Dmm
Weight:130g
Isolation:More than 18dB(0.5 to 3MHz),More than 30dB(3 to 200MHz),More than 17dB(200 to 500MHz)
Isolation loss:Less than 0.6dB(0.5 to 3MHz),Less than 0.8dB(3 to 200MHz),Less than 1.0dB(200 to 500MHz)
Impedance:50ohms / VSWR:Less than 2.0:1
Connector:MJ