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.

3903563960 - Broad Band Terminated Dipoles (BBTD, T2FD)
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RFI Suppressor for F Connector Cables - Simple in line filtering with male/female extension, Select AM Broadcast or Ham Band Filter Range

RFI-F-AM
$29.95
In stock
1
Product Details
MPN: RFI-F-AM, -HAM
Country/Region of Manufacture: USA
Units in product: 1

Suppresses radio frequency interference (common mode noise carried on coax shield)

¨ Shielded cable protection

¨ Highly Effective Inductive Ferrite Filter

¨ Effective for RFI

Select RFI-F-AM for broadcast band filtering (500 Khz-5 MHz)

Select RFI-F-HAM for 3-30 MHz ham bands 80-10 meters

Up to 30 dB common mode noise suppression

Use for interference from transmitters, wireless mic, and noisy power supplies. Install in series with cables for mic, line, amp/preamp interconnects, and speakers.

Standard cable length is 6 feet, 75 ohm cable

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