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.
DELUXE Desktop Computer RFI Kit - for 3 AC Powered devices and interconnect wires
Deluxe Desktop Computer RFI Kit for- 1 Ring Filter for computer AC power + 6 Snap On filters for interconnect cables plus 2 additional AC power Ring filter and 2 snap on filters for interconnect cables of peripherals such as printers, AC powered speakers, etc. The filters are selected to eliminate RFI from 1 to 300 MHz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.
Deluxe filter set for eliminating noise and RFI due to routers, wall wart power supplies, CB, AM broadcast and ham radio interference, etc.
Installation is easy. AC power cord through ring filter multiple times and snap on filters on I/O cables nearest computer - problem cured!
Likewise Termination Resistor values vary from 500-1250 ohms and we have a good selection shown HERE: