The Model 5583 from Netcom is a Tunable Filter with Frequency 30 to 90 MHz, Bandwidth 1.8 to 4.2 MHz, Input Power 1 W, Peak Power 2 W, Insertion Loss 2.5 to 6.5 dB. Tags: Drop-In (Thru-Hole), Digitally Controlled. More details for Model 5583 can be seen below.