The Signal Report | Operator Stories, Antenna Physics, Field Reports | Greyline

A perfect 1:1 match proves your power left the radio. It does not prove it left as signal. Maxwell and Zavrel on the difference, the dummy-load thought experiment, and the one question to ask any antenna maker who says the word efficient.

A good tuner, a clean match, and the SWR wandering from 17 meters down. The tuner is fine; the antenna is moving. The three usual suspects, the physics of why low bands suffer first, and the free fix to try before you buy anything.

The 125W weatherproof LDG RT-100 lives at the antenna base, powered over the coax, matching 160-6M at the push of a button. Why the bundle puts the tuner where the physics wants it, and when high-power stations should choose differently.

A 4:1 balun often makes the SWR meter happier without making your signal stronger. Real analyzer plots from N3EQF show why -- and where the match should actually live.

Ask ten operators where the ATU belongs and you start a decades-old fight. Both camps are right -- for their own stations. Three architectures the published physics supports, the one combination it does not, and the free calculator that settles your case.

Bill NO4ON is 78, a new Extra, and running a flagship digital station from Pensacola: FlexRadio Aurora AU-520, 4O3A Antenna Genius, 4O3A Tuner Genius XL, Q5 transverters — with a Greyline 28' DX Flagpole plus 11' extension as the HF antenna anchoring it all. 13 QRZ awards. Master of Radio Communication on two continents. Seven bands of confirmed worldwide DX.

KE6TT started at 20 feet, added the 4-foot extension to reach 24, and measured SWR of 1.0-1.3 across 40-160M - then worked Europe and Africa on 100 watts.