enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Long-range Wi-Fi - Wikipedia

   en.wikipedia.org/wiki/Long-range_Wi-Fi

   Long-range Wi-Fi especially in the 2.4 GHz band (as the shorter-range higher-bit-rate 5.8 GHz bands become popular alternatives to wired LAN connections) have proliferated with specialist devices. While Wi-Fi hotspots are ubiquitous in urban areas, some rural areas use more powerful longer-range transceivers as alternatives to cell ( GSM , CDMA ...

3. 2.4 GHz radio use - Wikipedia

   en.wikipedia.org/wiki/2.4_GHz_radio_use

   Most domestic microwave ovens operate by emitting a very high power signal in the 2.4 GHz band. Older devices have poor shielding, [13] and often emit a very "dirty" signal over the entire 2.4 GHz band. [a] This can cause considerable difficulties to Wi-Fi and video [15] transmission, resulting in reduced range or complete blocking of the signal.

4. Cantenna - Wikipedia

   en.wikipedia.org/wiki/Cantenna

   The 5.5 GHz cantenna dimensions are almost perfect in that they make a good fit for the standard TV satellite dish. The resulting setup is a low-cost high-quality high-gain antenna. [6] Such setups are widely used in wireless community networks for long-distance Wi-Fi links. Cantennas may be used with other RF devices such as wireless security ...

5. Gain (antenna) - Wikipedia

   en.wikipedia.org/wiki/Gain_(antenna)

   When considering an antenna's directional pattern, gain with respect to a dipole does not imply a comparison of that antenna's gain in each direction to a dipole's gain in that direction. Rather, it is a comparison between the antenna's gain in each direction to the peak gain of the dipole (1.64). In any direction, therefore, such numbers are 2 ...

6. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   A directive antenna with moderate gain of about 8 dBi often used at UHF frequencies. Consists of a dipole mounted in front of two reflective metal screens joined at an angle, usually 90°. Used as a rooftop UHF television antenna and for point-to-point data links. Parabolic The most widely used high gain antenna at microwave frequencies and above.

7. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   Outdoor antennas provide up to a 15 dB gain in signal strength and 15-20 dB greater rejection of ghost signals in analog TV. [6] Combined with a signal increase of 14 dB due to height and 11 dB due to lack of attenuating building walls, an outdoor antenna can result in a signal strength increase of up to 40 dB at the TV receiver. [6]