All of these will need to be connected feedline of some sort, and in the likely event you reach for some 50-ohm coax cable you’ll also need a balun to reduce noise or unwanted radiation.

Not willing to waste a bounty of free coax, one ham built a custom 1:1 current balun for a 75 Ω dipole. Converting between balanced and unbalanced signals is the job of a balun, and it’s where ...

9.3 The 1:4 Balun The 1:4 balun, although not as popular as the 1:1 balun, has found considerable use in antenna applications. These include matching folded dipoles to coax cables and matching ...

Video baluns, or BNC-to-UTP adapters, enable coaxial cables to be replaced by category 5 or category 6 Ethernet cables. Active video balun transceivers enable longer link distances, upwards of ...

B-204 IP Camera Balun Over Coax Converter Kit to its line of IP Surveillance products. This kit allows installers to update existing analog based security surveillance systems to IP based systems ...

It is the small, inexpensive part that converts the two wires of the antenna lead (300-ohm) to the single round coaxial cable input (75-ohm) on the television. A passive balun is built like most ...

I suppose someone could build a directional 75-300 Ohm balun, but I've never seen one. Put F-59 connectors on the end of your coax and a 75-300 Ohm on the far end.

Whoever thinks about baluns? All rooftop antennas were designed for 300-ohm twin lead. As everyone now uses 75 ohm coaxial cable for their downlead, most outdoor antennas come with a balun, which has ...

Something that is as ubiquitous as power outlets. Coaxial cable. Even older homes will have coaxial runs that are accessible without ripping up a wall. If only there were a balun out there that could ...

9.2 The 1:1 Balun The 1:1 balun is well known to radio amateurs and antenna professionals since it is widely used to match coax cables to dipole antennas and to Yagi beams that incorporate matching ...