Multifunctional measuring device for CTV

The LFM-400 device was presented at the previous conference. As a modification, the LFM-500 has had an optical power meter added and there is an opportunity to set up a telemetry connection between the devices. The optical power meter range is from -30 to +30 dBm. The opportunity presented by the telemetry connection allowed the use of the LFM-500 for cable net return path adjustment. The modernization of the LFM-400 widened the device functional possibilities. It released enough additional space on the front panel to include one more LCD monitor (full-color) for TV program visual control.