Balun Hybrids include an impedance balun (2:1, 4:1, 6:1, 9:1, 16:1, etc) and a 1:1 balun (choke) in a single enclosure. Use on OCF, loop, terminated dipoles and similar coax fed antennas requiring an impedance transformer Suppresses common mode current on the coax outer braid (prevents your dipole from acting as a tripole!).
Ferrite Snap On Combo Pack, Mix 31, 61, 75 ID=3/4"/18.8mm, RFI Range 150 KHz-2000 MHz, 8 Filters
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .5/12.7
OD (A) - in/mm: 1.22/31
ID (B) - in/mm: .514/13.1
Length (C) - in/mm: 1.55/5
Z (ohms per bead - single turn 1 MHz): 25
Z (ohms per bead - single turn 5 MHz): 71
Z (ohms per bead - single turn 10 MHz): 100
Z (ohms per bead - single turn 25 MHz): 156
Z (ohms per bead - single turn 100 MHz): 260
Z ohms (per bead - single turn 250 MHz): 260
Now you can get a ferrite snap on combo pack of 8 RFI filters in 3/4" ID size with all three filter ranges (great if you don't know the interfering frequency and need to cover the entire range when troubleshooting an RFI problem).
Mix 75 covers 150 KHz to 10 MHz (2 filters)
Mix 31 covers 1-300 MHz (usable to 500 MHz) (4 filters)
Mix 61 covers 200-2000 MHz (2 filters)