This RFI kit is specifically designed to cure most sprinkler control systems triggered by Radio Frequency Interference problems. The kit contains a large (ID = 1") snap on filter for the AC power Line protection and snap on ferrite beads for 4 sprinkler control lines. (Multiple control lines can go through the same ferrite filter) The ferrites are selected to eliminate RFI from 1 to 300 MHz. The ferrites are easy to use, don’t require modification of the protected equipment and work in almost all cases.
If you need control line filters for more than 4 control line "bundles" order part # FSB31-1/2.
50 ohm coax to 75 ohm balanced output baluns are useful for low (< 1 wavelength) dipoles exhibiting 75 ohm characteristic impedance or for matching to balanced ladder line whose endpoint impedance is near 75 ohms.
50 ohm coax to 75 ohm CATV coax connections are easily done with a 1.5:1 unun with SO-239 connectors on input and output. Likewise 50 ohm coax to unbalanced verticals or loads near 75 ohms can be matched with a 1.5:1 unun.