Attic Swl Antenna Balun Construction
We had moved from a city apartment to a house that had a big backyard.
Attic swl antenna balun construction. The shortwave antenna explained. The ge 33692 attic mount hd antenna is a notable example of an antenna specially designed for placement in the attic. Technically a true longwire needs to be at least one wavelength long but hams commonly call any end fed wire a longwire or random wire antenna. Shielded input from the antenna to the receiver using coax cable and a magnetic longwire balun mlb.
This is an omnidirectional antenna design that is supposed to have more signal gain than a random wire. Poor insulation of the attic shortwave antenna wire. Here are the possible solutions for each shortcoming that his attic shortwave antenna installation presents along with the recommendations i made to him. All told a friendly environment for an indoor swl antenna.
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. What a difference that made. Swl antenna back in the summer of 1971. Prior to our move i had been using and trying all kinds of indoor antennas since the early 60s.
I tried adding more wires to see if this made any further improvement. Groundplane verticals they are generally end fed 1 4 wave radiators. Magnetic longwire baluns mlb are foundin the section stuff you can use. The first problem to solve.
This antenna has all the reception power of an outdoor antenna but features a curved metal frame of reflectors that are designed for fitting easily into smaller attic spaces. The simplest multiband shortwave antenna for shortwave listening is probably the longwire for most newcomers to building antennas. Loft attic antennas for restricted spaces m. 5 magnetic longwire balun see text at least 10 metres of.
The better your antenna the more success you will have making contacts. His shortwave receiver is a yaesu frg 8800. Transforming the attic random wire antenna to a loop. Verticals and baluns.
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. I installed my first outdoor shortwave antenna a k a. Tf a compilation in the attic antennas 1. This antenna spans a tuning range spanning 3 5 mhz through 40 mhz and thus covers 80 10 meters on the amateur radio bands all international shortwave bands plus the 11 meter cb bands.
Mac af4ps fp 51 note. The infamous attic dipole.