2023年7月13日 · A preliminary mismatched antenna in an intended 50 ohm system (everything- transmitter, coax, matched antenna ultimately at 50 ohms) will result with common mode on …

2023年9月1日 · that's sort of my feeling with loops as well. I've sketched out designs for small and large portable mag loops. Inevitably, I wind up with a design that involves a bunch of rods, etc. …

2023年2月23日 · The Math work for 40 to work on like you said, most POTA activations, i am on 20M and 10M and space is limited in some parks, making it hard to run all 66' of a 40M …

2019年12月9日 · My only antenna for HF currently is a doublet cut roughly for 40 meters and fed with RS 300 ohm window line and matched with an old Johnson-Viking matchbox - no balun. …

2020年12月20日 · On 75m use a 10 to 1 tuner an it works like a non resonant antenna on receive ( great signal to noise ratio) but down 2 S units on transmit for a resonont dipole. to me that's a …

2018年4月25日 · In todays video, I head out to the forest with the Yaesu FT-891, and a new antenna called the EMCOMM 3 Portable from Chameleon Antenna. My goal was to find and …

2021年7月9日 · Thought some might be interested in this project. It is basically a light weight version of Colin's "MM0OPX" Adjustiwave antenna. Colin knows and approves of my build. …

2024年7月6日 · Any antenna is better than no antenna. Verticals or using trees might not be allowed or safe in some settings. One can make contacts with a low NVIS antenna, even at …

I finally had a chance to unbox the new BuddiStick Pro Deluxe package from Buddipole. This is a 40m-6m center loaded vertical antenna. The base package includes the whip, loading coil, the …

2017年2月19日 · The video details two different models of a man portable magnetic loop antenna. The first is a 40-10M single turn loop based on the Chameleon P-LOOP. The second is a 80, …