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In all fairness, Comet makes no grand claims about the CHA250B, calling it a compromise antenna suitable for tight spaces or portable operation and covering 6M to 80M with good SWR on amateur bands. They recommend putting it up at lease 35 feet and adding a common mode choke to the feedline.
- Reviews For: COMET CHA250HD HF VERTICAL
Review Summary For : COMET CHA250HD HF VERTICAL; Reviews: 4...
- Reviews For: COMET CHA250HD HF VERTICAL
Review Summary For : Comet CHA250B. Reviews: 139. MSRP: 449. Description: The Comet CHA250B broadband vertical antenna will amazingly cover 75/80 meters through 6 meters with no gaps! Transmit range is 3.5-57 MHz and receive range is 2-90 MHz. SWR <1.5:1.
“The Comet CHA-250B is a newly design broadband vertical with NO GROUND RADIALS. This antenna is EXTREMELY easy to assemble, requires no tuning or adjustments and VSWR is under 1.6:1 from 3.5MHz – 57MHz!”
Review Summary For : COMET CHA250HD HF VERTICAL; Reviews: 4 MSRP: $399.99; Description: Non-radial ultra wide band ground plane vertical antenna. TX 3.5~57MHz. 50 Ohm impedance, standard PL-259 coax connector. 250W on SSB, 75W on digital mode. Rated for 67 mph wind load. 23.4 ft height, 7 lbs. weight. Product is in production
9 Αυγ 2024 · #1. I've been reading a ton about vertical HF antenna options, and I know this particular antenna (and the original CHA250B) have a mixed bag of opinions/reviews. I believe that @prcguy (paraphrasing) called it a great dummy load for the end of one's coax. I did however find some comments intriguing, including the modeling.
8 Σεπ 2014 · Comet’s CHA-250B is an interesting antenna. It claims (and delivers) continuous broadband coverage from 3.5MHz to 57MHz with no ground radials. Comet’s website admits this is not without its compromises of course:
26 Ιαν 2014 · Parked in my driveway, the screwdriver antenna gets in just fine. The CHA-250B mounted at a higher elevation...and no love. I know the CHA-250B is a compromise antenna, but I was really shocked today when I did a side by side comparison.
