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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.
“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!”
26 Ιαν 2014 · I was doing some testing of a CHA-250B. I know some of you will call it a dummy load and not a good antenna; but lets put that aside and consider the performance difference I'm seeing in two locations.
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.
9 Οκτ 2024 · The Comet CHA-250HD is an advanced iteration of the highly regarded CHA-250B vertical base antenna, designed for amateur radio enthusiasts seeking versatility and performance across a broad range of frequencies. This article delves into its specifications, features, installation process, performance, and overall value, comparing it to its ...
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. This 23.5 foot vertical requires no radials and weighs only 7.1 lbs. The antenna consists of five sections of aluminum tubing that slide into each other.
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.
