DTD-1B-E is a product that can receives digital(DVB) terrestrial

signal.It is consistd of Tuner only part、IF AMP part、RF AGC part and

IF AGC part.TUNER only part take the RF (radio frequency)signal on the air or cable(RF range : 48.25MHz～855.25MHz) and it transfers IF signal to IF AMP part with high power gain、low noise figure、high performance for anti-interference、low local oscillator radiation and high reliability. IF AMP part amplitudes IF signal according to Demod IC's AGC and transfers it to Demod part.in addition it can modulate input audio and video signal,and finally translate modulate_signal into IF signal.