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.
Use for DSL/cable modems, routers, access points, repeaters, Ethernet switches, etc.
The RFI-ROUTER-4 kit is meant to be used with a DSL Modem/Router with incoming DSL signal, up to 4 Ethernet lines and a single power DC power supply line coming into the device.Included are one snap on ferrite (3/4” hole) and two (3/4” hole) snap on split ferrite beads for the Ethernet outputs (2 per snap on using multiple turns for each cable). The additional 3/4" snap on is for the power supply line. The RFI-ROUTER-8 kit is identical but has 2 additional ferrite snap on for up to 4 additional ports,
Useful for all brands of computer equipment.Likewise Termination Resistor values vary from 500-1250 ohms and we have a good selection shown HERE: