Quote:
Originally Posted by Clondike Clad
Laugh, but you don't know why this implementation. This be very happy me!
Ok now let us get back to this LRL stuff.
What is it that hte photo transistor is picking up.
I would like to test this
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OK, was simple. Oscilloscope capture the signal and appears a luminous point in the screen. The phototransistor sense this point.
There are two types of electronic LRL: 1. For buried for long time items. 2. In the air or not buried item or buried for short time. The oscilloscope was used for to show this second in air detection type. In the past the second type was common used, not deppendent of phenomenon of long buried items. But as used radio today degenerate impracticable regarding all types of interference, except in closed inland.