Is depth sacrificed for accurate identification in a target ID detector?
Virtually all target ID detectors can find targets much deeper than they can identify them. Discrimination only requires one reference signal, which yields a positive signal for good targets and a negative one for bad targets. To identify the target requires some very special and complex electronic circuitry, which does not have the ability to reach the same depth as a simple discriminator. If manufacturers limited the depth of their ID machines to the depth of the identifier circuit, they would sell a lot fewer detectors.
Virtually all target ID detectors can find targets much deeper than they can identify them. Discrimination only requires one reference signal, which yields a positive signal for good targets and a negative one for bad targets. To identify the target requires some very special and complex electronic circuitry, which does not have the ability to reach the same depth as a simple discriminator. If manufacturers limited the depth of their ID machines to the depth of the identifier circuit, they would sell a lot fewer detectors.
