Attic Swl Antenna Balun Construction

Satisfactory to use a 1 1 balun 12 bifilar turns on 4 stacked ft240 61 cores see next section on page so that there was less loss when operating into the low resistive component of the antenna input on 80m.

Attic swl antenna balun construction.

The antenna comes with a 3 coaxial cable to attach the antenna bnc output to a so 259 pl 259 input of your receiver most receivers. Loft attic antennas for restricted spaces m. Mounting an antenna in your attic is easier to accomplish than putting it outdoors mainly due to not having to drill holes in your roof as well as a shorter cable run to the tv. We had moved from a city apartment to a house that had a big backyard.

The better your antenna the more success you will have making contacts. The infamous attic dipole. Loop antenna system with 4 1 balun and choke combo 7 30 mhz 1 5kw pep. The attic shortwave antenna wire this is the most importantaspect to improve.

An attic antenna is more economical than a rooftop installation to maintain and doesn t entail as many potential repair costs as its outdoor counterpart. Bare copper antenna wire stapled directly on wood rafters causes loss of rf signal energy. With time bare copper oxidizes the wood where the wire is tightly stapled to absorbs some of this oxidization and forms a loose yet lossy bond with the wire. The shortwave antenna explained.

Swl antenna back in the summer of 1971. This was installed at a previous qth i will be the first or millionth remember i m from fl to affirm that the antenna is the determining factor for success when it comes to one s station set up. Loop antenna system with 4 1 balun and choke combo 7 30 mhz 1 5kw pep. I installed my first outdoor shortwave antenna a k a.

I tried adding more wires to see if this made any further improvement. Solder a magnetic longwire balun mlb to the wire at the bottom and attach a coax cable between the mlb and your receiver and then mount the antenna as high as possible. Fig 6 the eco friendly vertical antenna magnetic longwire baluns mlb are found in the section stuff you can use. Prior to our move i had been using and trying all kinds of indoor antennas since the early 60s.

Mac af4ps fp 51 note.