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.
Here are several different 1:1 baluns you can use depending on power requirements:
SIGNALSQUARE
The first representation of our device. Encased in a protective case that can handle outdoor environments. A water proof device to detect RF signals without a battery. You can attach this to any base stations and uses RF as a power source to light up an indicating light.Optional Audio output transducer to hear your signal in addition to seeing LED light.
Self-Powered RF Detection Light (No Battery Needed)
Product Dimensions
- Length: 2.5625 in
- Width: 2 in
- Height: 0.75 in
Specifications
- Hz to GHz: 60 Hz to 1.2 GHz
- For Optional Models:
- 2.4 to 6 Ghz
- For Optional Models:
- Min. to Max. RF Powered Detection: Milliwatt to Kilowatts
- Proximity Detection:
- Wireless: 0.5 in to 3 ft
- Capable of in-circuit detection from 20 mW. 30 seconds at 100 W
Warranty
- 3 years warranty no matter what, except:
- Intentional breakage and tampering of device.
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