Broad Band Terminated Dipoles (BBTD), Tilted Terminated Fold Dipoles (T2FD) and Balanced Termination Folded Dipole BTFD) antennas can be designed to cover a large range of frequencies between 1.8 30 MHz. Longer length antennas generally provide better low frequency efficiency but take up a larger footprint of land. One BBTD that has worked well at the AK6R antenna farm is shown below. Many other designs are available and can be found at www.HFLINK.COM as well as other internet sites. Your mileage may vary using this antenna, but as a general coverage antenna for ham and shortwave broadcast, the simplicity can’t be beat even though an individual dipole on a specific band may out perform this broad band dipole. Palomar Engineers has all the parts you need to build this antenna, so why not give it a try?
Depending on the source of the antenna design, different value baluns are specified. Our Bullet(TM) baluns in ratios of 9:1, 12:1 and 16:1 are excellent for this type of antenna as they are broadband from 1.8-61 MHz and will take up to 500 watts PEP.
This RFI kit is specifically designed to suppress interference triggered by today's smart appliances used in the kitchen and household that act as "transmitters" and affect other appliances or radio/TV/Cable audio systems OR these appliances may act as "receiver" of energy from other devices such as ham radio, CB, AM broadcast and other electronic devices in the home. The problem is generally the AC power cable acting as an "antenna" picking up or transmitting signals.
The RFI kit has ferrite filters are selected to eliminate RFI from 1 to 300 MHz and are typically used on the AC power lie of your Washer, Dryer, Microwave, Refrigerator and AC powered Clocks and Lamps. The filters are easy to install, don’t require modification of the protected equipment and work in almost all cases.
What is included in the kit?
The RFI kit contains 3 ring filters (1.4" ID), 1 large snap on (1" ID) and 2 smaller (1/2" ID) snap on filters for clock or lamps. Installation examples are shown in the included manual. Simple, easy to install and effective in almost all conditions.
Likewise Termination Resistor values vary from 500-1250 ohms and we have a good selection shown HERE: