Four-Element "True Quad" H/V Switchable
Base Station Antenna
The L4+ Quad has a great Electrical Performance / Mechanical Strength
ratio while maintaining size, weight and budget under control.
(*) 2 Required. One for Vertical polarization and the other for Horizontal polarization
Along with the additional performance of four full quad elements the “L4+” comes the ability to easily upgrade the antenna to 6 elements (turning it into our “L6″ model). If space or a tight budget presently prevents you from purchasing our L6, the L4+ offers room to upgrade.
Four heavy wire elements are precisely spaced and mounted on a long aluminum boom and fiberglass frame, forming a high-gain parasitic antenna. Exclusive SFS (Signal Feed System, patented) matching system gives maximum directional performance and dual polarity to allow switching between close (local) and long haul signal paths (DX)
Use it as Base-to-Mobile
Switch to Vertical Polarization and extends the useful range of a base station many times over. Signals off the sides and back are greatly reduced, allowing interference-free contacts with mobiles over great distances. Brings in stations that cannot be heard on an omni or smaller beam.
Use it as Base-to-Base
All of the base-to-mobile advantages described above plus the ability to switch to horizontal (flat side) polarization to further minimize interference from local stations. Under proper receiving conditions stations from all 50 states and other countries can be copied.
Directivity – Extremely high front-to-back and front-to-side ratios. Signals from sides and back are rejected over 4000 times!
Gain – Nearly 30x power multiplication power gain boost on transmit and receive.
Dual Switchable Polarization – All our Quad’s features exclusive “SFS” (Signal Feed System, patented) matching system gives maximum directional performance and dual polarity to allow switching between Horizontal and Vertical polarization from the operating position with up to 30 db separation.
Low Visual Profile and Wind Resistance – Rugged yet lightweight design looks well and survives high winds.
Low Noise – Full loop quad elements significantly reduce rain static!
High Power Capability – Our SFS Feed System provides low SWR easily adjusted at the boom to mast plate and an 8,000 watt power rating.