Tester for remote controlled radio systems

摘要

A remote systems tester which greatly simplifies and speeds testing of remote controlled radio systems and communications lines which produces function tones, guard tones, tone bursts and also DC signals and which allows the time of transmission of the initial high level guard tone to be adjusted and also allows frequencies to be selected with a keyboard double tone selector and also allows frequencies to be synthesized with thumb wheels. The tester very accurately and quickly allows the testing of remote controlled radio systems and communications lines and eliminates substantial amount of equipment that is required in the prior art.