Description

• New and original LAVA YaGi outdoor HDTV antenna, up to 70 miles range

• Model: HD-230A

• Brand: LAVA

• UPC: 85216003174

• SWR(Standing Wave Ratio): UHF

• UHF Gain: 15-18dB

• Frequency: 470-860MHz

• Impedance: 75 ohms

• The most advanced design for outdoor Yagi type antennas

• Wide reflecting exterior, triple size for reception.

• No power needed and good for mid range UHF reception.

• Cut the cable bill, get this easy to install antenna and get all your local (over the air) TV channels (including HDTV channels).

• Box size: 32 inches x 7 inches x 6 inches! Shipping on us

Notes

• The Yagi antenna is credited to Hidetsugu Yagi (although not the original inventor), A Japanese physicist. The Yagi was designed to improve the gain of the antenna concentrated in one direction. The directivity is accomplished with added elements called directors and reflectors. The Yagi has high Gain, is very directional, and has narrow bandwidth. In simple unidirectional antennas like the Yagi, frequency bandwidth is inversely proportional to antenna gain. One way to increase the frequency bandwidth of a simple antenna like a Yagi, is to increase the diameter of the antenna conductors. The greater the conductor diameter, the wider the band with increased conductor diameter also has a second benefit, it increases the physical strength of the antennas.

• At normal elevations, however, the curvature of the earth pretty much limits effectiveness to about 70 miles for UHF band signals.

• The antenna range can be more than 70 miles if you live on top of a mountain and the broadcast towers were also on a mountain.