... CATV system. It has the functions such as the single-channel, multi-channel, all-band scanning, difference-carrying measurement, signal- ... multiple DVB mode: 16QAM,32QAM,64QAM,128QAM,256QAMSingle channel/Frequency simulated power levels testing.Video and audio signal ... 22 to 39 dB modulation error rate (MER).Specifications:Channel/Frequency IndexFrequency Range 46MHz --870MHz, 5MHz--870MHz (Only ...