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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.
12 Ιουλ 2020 · Taking a look at this dynamic HF Vertical antenna from Comet. It's not perfect, but it's better than you would think.
“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!”
9 Αυγ 2024 · Was it just clamped to a porch rail? I have the complete understanding that it's neither the ideal antenna nor the most effective. In my scenario, I am looking for a backup vertical to connect to my spare FT-450D that is sitting on the shelf, since I recently had an issue that my EFHW for 10-80 fell and I was scrambling to get it up again.
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.
26 Ιαν 2014 · On the CHA-250B, I couldn't hit the repeater...go figure. 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.
23 Απρ 2011 · Call Sign: 26TM157. Location: MK-UK. Re: For those considering a Comet CHA250B. by Admiral » 12 Jun 2011, 21:51. The guy certainly proved his point to eHam, but I think he should get out more and maybe try and get a girlfriend.
