The Allen Avionics variable video attenuator has eight switchable attenuators arranged in a binary series from 0.1 to 12.8 dB. The total range of the attenuator is from 0 to 25.5 dB in steps of 0.1 dB. The impedance is 75 or 50 Ohms.
The amplitude, delay and return loss of the Video Attenuator are excellent over the video bandwidth of 5.5 MHz and can be used to over 200 MHz.