CATV Signal Level Meter Handhold Design Limit test and Auto test Channel spectrum ... with high accuracy rate. Mainly it supports C/N, level, channel power measurement, voltmeter function, spectrum analysis and so ... ,32,64,128 and 256 QAM constellation display with zoom, average digital power level, bit error rate (BER),and 22 ... S1127DQ 5MHz to 870MHz ,with QAM function. CATV Signal Level Meter