There are cases where multiple channel signals (specified by frequency bands) are multiplexed to be transferred on a single transmission line of remote monitoring and control equipment, telemeters, etc.
When the signal levels of a specific channel are measured on such transmission lines using an ordinary flat level meter, signals on the other channels must be stopped.
However, LM-534B enables easy measurement of the signal levels of a specific channel without stopping signals on the other multiplexed channels.
Further, the signal-out function (signal output) enables the signal output from a specific channel, thereby allowing the monitoring of a specific channel for an extended period by concurrently using a level variation recorder.