Model Length SWR <2:1 SWR <3:1 Use
BWD-20 20 Ft 14 - 30 Mhz
20 - 10 M 30 - 54 Mhz
6 meters Attic antenna for 20 - 6 M
This unique antenna design covers a continuous frequency range up to 1.8 to 30 Mhz, with a VSWR of less than 2:1 across the entire range when fed with a 50 ohm coaxial cable. No antenna tuner is required for HF for most radios. The fact that this antenna is folded over on itself and terminated gives the advantage of EMI rejection far greater than that of other antennas, making receive mode extra quiet. There are no adjustments required when changing frequency, making operation fast and simple for contests or emergency work. There are no mechanical parts like relays or motors to wear out, as in some other broadband tuning systems!
It's Simple . . . It's Reliable . . . It Works!
These antennas are ruggedly built. We use only stranded copperclad steel, and stranded stainless steel wire. Properly mounted they will withstand hurricanes. Tens of thousands are in service on every continent in the world, from the tropics to the antarctic regions. Installation is simple, allowing configuration as an inverted Vee, flat top, or sloper. Recommended minimum height above ground for 80 meter operation is 25 feet, 40 feet for 160 meters. The higher the installation, the more effectively the antenna will radiate, especially at the lower frequencies. NVIS propagation is performed as a flat top at 6 - 12 feet, and will radiate approx 250 miles omnidirectional with no skip.
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