Loop antennas like these are typically used only for receiving, but in a pinch they can be used to transmit as well. To tune the antennas, which are much shorter than a standard vertical or dipole, a capacitor is soldered onto the ends, which electrically lengthens the antenna. [OM0ET]...
There are many designs for homebrewed loop antennas, including at least one that doesn't even look like a conventional loop -- the Villard antenna, which is just sheets of aluminum foil mounted on a large sheet of cardboard, plywood, foamcore or gatorboard. The Joe Carr receiving antenna ...
Note: The best effect for outdoor use is to use antennas indoors as close as possible to windows, fully enclosed reinforced concrete, against walls and other environments where the standing wave ratio is not ideal. Advanced technique: when the signal is weak, you can rotate the antenna directi...
This problem is so common that there are a crop of indoor antennas that seem attractive. Since I don’t often tune in shortwave and I don’t want to have to reset my antenna after every storm, I decided to look at the Tecsun AN-48X along with a YouLoop clone from China. Let’s ...
Many thanks toSWLing Postcontributor,Bob Colegrove, for the following guest post: A Passive, Resonant, Transformer?Coupled Loop Antenna for Shortwave By Bob Colegrove Over the years I have resisted the level?of?effort necessary to construct and maintain outdoor antennas. Rather, I have focused on...
Gain(dB): dBi Category: Communications Antennas Frequency Range: 4MHz-24MHz (Blue SW Shortwave Antenna) and 500kHz-2000kHz (Red AM(MW) Medium Wave Antenna) Design: Small Loop Antenna with Donut Shape Material: Durable Construction Compatibility: Ideal for Malachite Receiver High Resistance Input ...
Also the design has some advantages in that it has very low electrical interference pickup, and has no electronics that can overload from signals that are too strong. Overloading from strong signals is something that can easily affect cheap magnetic loop antennas like the MLA-30, and even hi...
Because of the limited space along this scenic coastal highway, all antennas used for DXing need to be both compact and temporary. Wellbrook loops supported on pro-audio speaker stands are a great way to go, and can easily be set up in the pre-dawn darkness. ...
The Squid - Universal Matching Transformer for Beverage / Longwire / Dipole / Random wire / K9AY / Flag / EWE Antennas