RF SIGNAL GENERATOR, TSG17 Wide Frequency range:100KHz - 150MHz. Low distortion AF oscillator installed supplying Amplitude Modulation(AM) with tunable range from 150Hz-1.5KHz. AF output terminal works as audio generator as well. AC 110/220V 50/60Hz SWITCHABLE Audio frequency:150Hz-1.5KHz, RF output: Min 100 mV rms (up to 35 MHz unloaded)