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!).
FT400-3I, ID=3", RFI Range 1-300 MHz, Case of 25
Product Details
RFI Range (MHz): 1-300 MHz
ID-B (in/mm): 3/76.2
OD-A (in/mm): 4/101.6
Height-C (in/mm): 1/25.4
Weight (oz/gm): 420
Initial permeability: 1500
(4″ OD, 3″ ID hole), available in mix 31 only, Case of 25
Excellent for large cables or multiple cables – use multiple cores for higher choking. Also useful when you need high turns count for high choking with large cable - works on AC or DC power lines and also coax cable lines.