You will have to keep changing the tuning of your detector circuit and of the antenna.
Edwardson asked, over the clamor of the detector alarm bell.
He began adjusting the tuner and detector knobs and sending out his signal.
It looped and turned, hunting, feeling with its every detector for that other ship.
"Well, static is the big bugbear of radio," answered Bob, pausing a moment in regulating his tuner and detector.
His detector now was in his hand, but Halsey anticipated him by a second or two.
Taking out a key and opening the detector, the keeper said, I thought you might like to see this.
The first thing I want to ask you about is this detector of yours.
The sparks again disappear when the distance of the bridge from the detector is 3λ/4.
"At first we thought of errors in the detector machine," he went on.