The Avtech AVB1 series provides peak-to-peak outputs of 50, 80 or 100 Volts, center frequencies in the range of 200 to 900 MHz, and maximum pulse repetition frequency (PRF) of 100 kHz, 200 kHz, or 500 kHz. Model AVB1-4-C center frequency may be tuned over a +/- 20% range using a one-turn control. The center of the tunable range must be specified at the time of ordering, and it must be between 250 and 833 MHz. The AVB1-4-C provides amplitude of up to 50 Volt with a pulse repetition frequency of up to 500 kHz. The pulse repetition frequency of -C units is adjustable using the internal clock oscillator, which is controlled by a four-position decade range switch and a one-turn fine control. Models with the -C suffix require 100-240V, 50-60 Hz prime power.