Coax Feed Line Common Mode Chokes
Feed line chokes are manufactured in a variety of sizes and shapes to make them physically compatible and conveniently installed for various applications. Palomar Engineers offers many different shapes, sizes and frequency ranges and power ratings for just about any application from 200 KHz to 1 GHz.
Need help in selecting the proper choke for your needs? See Choosing a Feed line Choke
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.