The shortwave antenna explained.
Building an attic sw antenna.
We had moved from a city apartment to a house that had a big backyard.
Swl antenna back in the summer of 1971.
Finished late last night and had considerable noticeabl.
I can t put up some big ugly antenna.
Another part of being a shortwave listener is designing and deploying the most clever antenna possible balancing visibility reliability and performance.
One quarter 1 4 wave is the minimum height above ground for effective performance.
This is a simple homemade attic receive not transmit antenna for am and sw radio receiver channels.
What a difference that made.
It can run out the window to a tree or stapled along under the eaves or even in the attic.
Prior to our move i had been using and trying all kinds of indoor antennas since the early 60s.
Dipole antennas often are the easiest to build and then turned into inverted v antennas by raising the center of the antennas up into the inverted v style.
The principal radio being used on this antenna is a vintage hallicrafters with a high impedance balanced input.
It can potentially capture and contaminate the valid rf energy coming in from your attic shortwave antenna with undesirable electromagnetic and electrostatic interference.
However i d like to occasionally run a tecsun portable on this antenna too.
Here are some ideas about an in the attic antenna.
Tf a compilation in the attic antennas 1.
Attic antennas to begin with building and installing an attic antenna that helps your reception you need to take stock of your attic s measurements particularly the length of the attic at it s longest distance that you have easy access and your radio s location.
Resources listed under shortwave antennas category belongs to antennas main collection and get reviewed and rated by amateur radio operators.
Coax shield picking up interference the coax shield when not terminated at each end acts as an independent antenna.
I installed my first outdoor shortwave antenna a k a.
Shortwave antenna plans and links category is a curation of 54 web resources on rhombic antenna for shortwave radio broadcasting echelon log beverages hula loop antenna.
Right now i have about 43 feet of uninsulated copper wire attached to pvc pipe as insulators drilled into attic studs.
It s a good idea to have your antenna at least one half 1 2 wavelength of the antenna.
Transforming the attic random wire antenna to a loop.