G5RV/ZS6BKW Antennas

The ZS6BKW antenna is a better match for our bands than the G5RV. The method of construction and tuning  is essentially the same for both antennas but the dimensions are different.

Here is the ZS6BKW antenna installed at AK6R fine tuned for the CW/FT8 frequencies on 40-20-17-12-10 meters.  An excellent antenna when installed at 30 feet or higher and no tuner required avoiding the tuner losses and constant retuning.  If you want to work all bands from 80-10 install an antenna tuner between the 1:1 balun and the amplifier and ignore the 39/40 switch.

Is this the best FT8 antenna?  – I think so as I has made over 70,000 contacts and it still is a proven winner -Good world wide DX, easy to install, no tuner and takes full legal limit.

PAL ZS68006 Ant Layout - G5RV/ZS6BKW Antennas

 

Here are several different 1:1 baluns you can use depending on power requirements:

Hybrid 16:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-31 MHz, 1.5KW PEP - BBTD, T2FD, V-Beam Antenna

SKU CB-16-1-1500
$139.95
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Hybrid 16:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-31 MHz, 1.5KW PEP - BBTD, T2FD, V-Beam Antenna
Product Details
MPN: CB-16-1-1500EB/TS
Country/Region of Manufacture: USA
Input ohms/Output ohms: 50 in/800 out
Frequency Range < 2:1 SWR (MHz): 1.8-31 MHz
PEP Power Rating (watts): 1.5KW
Input Connector: UHF SO-239
Output Connector(s): Side Eyebolts (EB) or Top Studs (TS)
Enclosure Size: 4"x4"x 2"(1.5KW)
Weight (pounds): 3
Antenna Compatability: BBTD, TTFD, V-Beam, Double Terminated Dipole

After many requests we have created a compact, special balun for Terminated Folded Dipoles (TTFD), Broad band Terminated Dipole/loop (BBTD) and V beam antennas with termination resistors at each end. The CB-16-1-1500 is a CUBE(TM) enclosure containing a multi-core, broadband 16:1 impedance transformer (50 ohm coax input to balanced 800 ohm output) in series with a 1:1 current balun for extra common mode current choking to keep RF current off the outside of the coax braid and on the antenna where it belongs. The extra choking action also means that the coax feed line will not act as a radiator causing unnecessary RF interference (RFI). Rated for full 1500 watts PEP and 450 watts CW (ICAS). 1.8Mhz – 31 MHz.

CB-16-1-1500EB is housed in a 4” x 4” x 2” waterproof housing with SO-239 input and stainless steel eye bolts on the side for ease of connection to your wire antenna. Top eye bolt acts as an antenna hoist. Also available with top studs for post or wall mounting (Model # CB-16-1-1500TS)

Termination resistor for the antenna is model # TR-1000-600 for single resistor termination.

BBTD Installation by K!FU

Another BBTD Installation


 

Here is the Coax Noise Filter used to suppress coax common mode currents (works for all type of antennas)

 

PDF of ZS6BKW at AK6R Construction Article HERE: My ZS6BKW Antenna