Comet Antennas CHA-250HD Vertical Base Antenna for 6m-80m 24ft

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Comet Antennas Broadband Ground-Plane Vertical Base Antenna - CHA-250HD

Comet CHA-250HD HF/VHF Vertical Antennas

Comet CHA-250HD HF/VHF vertical antennas make the most of a tight situation! When you have too little space and too much regulation, Comet CHA-250HD HF/VHF vertical antennas can offer easy assembly and setup, no ground radials, no tuning or adjustments, and VSWR under 1.6:1 from 3.5 MHz to 57 MHz! Plus, the wide bandwidth is not only good on ham bands, but on shortwave bands as well, making these antennas perfect for an SWL wanting a low-profile, all-in-one antenna. When you have to play within the antenna and space restrictions of your QTH, Comet CHA-250HD HF/VHF vertical antennas can provide a clear winning advantage to make some QSOs!


Michael Brigmond GigaParts Brand Manager 11/1/2022

Multiband HF+6M Base / Repeater Antenna

  • Extremely Easy to Assemble
  • No Tuning or Adjustments Necessary
  • No Ground Radials


The Comet CHA-250HD is the revised CHA-250B. 
The top section of aluminum has been replaced with a solid whip for greater flexibility and less strain on the lower sections in high winds.  A uniquely designed broadband vertical requiring NO GROUND RADIALS.

This is EXTREMELY easy to assemble, requires no tuning or adjustments and VSWR is under 1.6:1 continuously 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.

places CHA-250B
Please be advised: The shopping cart estimate isn't able to take into account the oversize dimensions of this package and may inaccurately show $0.00. Within 24 hours of placing your order, we will notify you of the exact shipping cost for approval. 



  • TX 3.5 – 57MHz
  • RX 2.0 – 90MHz


VSWR: 1.6:1 or less
Max Power: 250W SSB
Impedance: 50 Ohm
Length: 23’5″
Weight: 7 lbs 1 oz
Connector: SO-239
Mast Size Required: 1″-2″ diameter
Max Wind Speed: 67MPH
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