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.

2203545038 - Broad Band Terminated Dipoles (BBTD, T2FD)
+3

ACOM 2000 HF Linear Amplifier + Remote Control Unit RFI Kit - 8 RFI/Noise Reduction Filters

RFI-LA-AC2000
$79.95
In stock
1
Product Details
MPN: RFI-LA-AC2000
Filter Power Rating (PEP watts): coax cable limit
RFI Suppression Range (MHz): 1-60 MHz
# Ferrite Filters: 8

PURPOSE

These kits are designed to choke common mode currents going into or exiting from your amplifier cables.Filters are supplied for the RF In, RF Out, Relay Cable/control lines, remote control unit and AC power line.Use of the filters often helps cure SWR problems between amp exciter and amp and between amp and antenna tuner or direct to antenna.The AC power line choke helps keep common mode current out of the power line which could cause interference to other devices connected to the same power line if not suppressed.

USE

KIT INCLUDES

Filter Type

Usage

Ferrites

F240 Ring (1.4” ID)

Transceiver RF coaxr

1

Snap On (1/2” ID)

Remote Control Unit cables

5

Snap On (1” ID)

RF Output, AC/DC power

2

Total Filters

8

INSTALLATION GUIDELINES

Amp RF Input:Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center

Amp RF Output:Snap On Filter (1” ID) – 3 turns of coax cable through center

RCU Cables:Snap On Filter (1/2” ID) – multiple turns through center

AC Power:Snap On Filter (1” ID) – 3 turns of power cord through center

Save this product for later
Display prices in: USD

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