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Comet CHA-250HD All Band Vertical Base Antenna 3.5–57 MHz Wideband HF/VHF/UHF Fiberglass Antenna 250W PEP with Transformer Matching Network – 23 Feet Weather-Resistant Design

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Availability: 17 left in stock
Fulfilled by Hamcity com
Arrives Friday, Feb 13
Order within 13 hours and 50 minutes
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Features

  • The Comet CHA-250HD All Band Vertical Base Antenna provides continuous 3.557 MHz coverage without manual tuning or external antenna tuners, offering seamless HF, 6m, 10m, 12m, 15m, 17m, 20m, 30m, 40m, and 80m band performance.
  • Designed with a built-in transformer matching network, this antenna maintains consistent impedance and low SWR across the frequency range, ensuring reliable transmit and receive performance for amateur and emergency operations.
  • Constructed from high-quality fiberglass with a reinforced weatherproof coating, the CHA-250HD resists UV damage, moisture, and corrosion, making it ideal for long-term outdoor base station installations.
  • The CHA-250HDs efficient wideband design eliminates the need for ground radials or multiple antennas, offering a low-profile solution that performs exceptionally well even in restricted-space environments.
  • Rated at 250 watts PEP and featuring an SO-239 connector, this 23-foot vertical antenna delivers durable, all-weather operation for serious amateur radio operators and emergency communications setups.

Description

The Comet CHA-250HD All Band Vertical Base Antenna is a professional-grade wideband antenna engineered for continuous operation from 3.5 to 57 MHz, covering the most popular amateur radio bands including 80m, 40m, 20m, 15m, 10m, and 6m. Unlike conventional designs, the CHA-250HD does not require external tuners or radials, simplifying installation while maintaining excellent broadband performance. Built with a durable fiberglass radiating element and corrosion-resistant aluminum hardware, the CHA-250HD is designed to withstand harsh weather conditions year-round. Its factory-integrated transformer matching network provides efficient impedance matching across multiple bands, minimizing SWR and maximizing signal transfer efficiency. Standing at approximately 23 feet tall, the antenna offers impressive coverage in a compact, vertical profile suitable for roof, tower, or mast mounting. Rated for 250 watts PEP, it supports a wide range of transceivers and amplifiers while maintaining low-loss operation for both transmitting and receiving. Ideal for amateur radio base stations, emergency communication setups, and field operations, the Comet CHA-250HD delivers the reliability and performance demanded by professionals. Whether you’re upgrading your station or installing a versatile all-band antenna for the first time, this model offers dependable performance, low maintenance, and world-class construction.

Antenna: All Band Vertical Base Antenna


Brand: Generic


Color: white


Impedance: 50 Ohms


Product Dimensions: 23"L x 2.5"W x 1.98"H


Manufacturer: Generic


Number of Items: 1


Package Dimensions: 73 x 4 x 4 inches


Item Weight: 8.98 pounds


Manufacturer: Generic


Item model number: CHA-250HD


Date First Available: March 6, 2009


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Feb 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Easy to assemble, low SWR out of the box.
Review Image by AF7UM AF7UM
I assembled the antenna inside my house, (be sure and have plenty of room for a 22' antenna) and took it outside to a waiting tripod. Tightened it up, connected the coax, and headed for the station. Fired up the radio, amp and tuner, set an output of 15w on 3980khz to start, and keyed the mic expecting to hear the tuner click and whir away while it computed a decent SWR. I was happily surprised to see the SWR alternating between 1.1and 1.0 without any intervention by the tuner! Set up for 40m and got nearly the same results with an SWR of 1.3. Moving to 20m, the SWR dropped to a stock solid 1.0! The tuner never engaged. I have a limited space location and I was hesitant to try a vertical since in the past I'd always been a big fan of dipoles but this antenna has made a believer out of me! Well done, Comet! My only advice? Pay attention to the measurements of the tubing when assembling. A little time with a tape measure could save you a lot of time tuning the antenna later. ... show more
Reviewed in the United States on September 12, 2024 by AF7UM AF7UM
    • Works as Advertised - NICELY
Based on some online reviews that I came across - after ordering - I became a bit skeptical. However, this antenna IS easy to assemble (took 10 minutes +/-), and about another 15 minutes clamping to an existing DISH roof support - removing the Dish was a bit tedious. I have contacts in Argentina, Canada, Czech Republic, Columbia, Antigua, Estonia, St Kitts, Alaska, and multiple other US states. ICOM 7300 - 100 watts - no other equipment. What more needs to be stated- this antenna works as advertised. (just a quick update, added Serbia 5148 miles - with great audio report) ... show more
Reviewed in the United States on November 1, 2024 by Verified Purchase
    • Expensive but darn well worth it...
Review Image by M. K. Sherwood M. K. Sherwood
This is the answer to the need for discreet but robust antenna install. It is full wave and tunes 1:1.4 at all the amateur bands [80-6M] with excellent signal reports. It is well built, easy to assemble, has quality stainless steel mounting hardware, is very quiet to QRM a long-wire horizontally polarized antenna would have trouble with. I am sold on this vertical. 73 ... show more
Reviewed in the United States on October 5, 2024 by M. K. Sherwood M. K. Sherwood
    • Great antenna for my space
Good end fed antenna.
Reviewed in the United States on May 15, 2025 by dsrtrt
    • No trap Multi-band HF vertical
It seems to be a good antenna EXCEPT for 15 meters. I get good matches on most bands thru 6 meters.
Reviewed in the United States on May 7, 2024 by Thomas C Sefranek

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