Broad Band Terminated Dipoles (BBTD, T2FD)

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?

BBTD at AK6R 1024x726 - Broad Band Terminated Dipoles (BBTD, T2FD)

 

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.

1202477421 - Broad Band Terminated Dipoles (BBTD, T2FD)
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HF Loop Antenna Wire Kits (160-10 meters)

LWK-40
$54.95
In stock
1
Product Details
Brand: Palomar Engineers, Inc.
Model: LWK-NNN, NNN = band
Frequency Band(s): 160-10 meters
Type: Horizontal or vertical loop

Full Wave Loop Antenna Wire Kit for vertical or horizontal loops (square, rectangle or delta shaped) from 160 meters to 10 meter. Includes end insulators, #14 Insulated stranded copper wire and spade lugs for attachment to an optional balun

Insulators are a very stealthy, strong, 4 PVC, 2 1/4" long. 1" wide. 1 1/8" hole separation wire antenna insulators and may be black, gray or white depending upon inventory.

Typical size id 1005/F(MHz) and cut for lowest frequency in band segment.

For multi-band capability use 4:1 balun such as our Bullet-4BEB-500/1500 or CB-4-1500EB/5000EB with a feed line choke below it or best bet is to use the Hybird 4:1 + 1:1 balun, CB-4-1-1500. For single band use a 2:1 balun such as a Bullet-2B-500/1500 or CB-2-1500/5000EB. with a feed line choke below it or the hybrid CB-2-1-1500EB with built in 2:1 and 1:1 balun.

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Likewise Termination Resistor values vary from 500-1250 ohms and we have a good selection shown HERE: