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"Rabbit-ears" VHF television antenna (the small loop is a separate UHF antenna) VHF transmission range is a function of transmitter power, receiver sensitivity, and distance to the horizon, since VHF signals propagate under normal conditions as a near line-of-sight phenomenon.
The most common types of indoor antennas are the dipole [2] ("rabbit ears"), which work best for VHF channels, and loop antennas, which work best for UHF. [3] Outdoor antennas on the other hand are designed to be mounted on a mast on top of the owner's house, [4] or in a loft or attic where the dry conditions and increased elevation are ...
TV antenna manufacturers often rated their top-of-the-line "deep-fringe" antenna models with phrases like "100 miles VHF/60 miles UHF" if the antenna included UHF reception at all. (In the practice of electrical engineering, the frequency range in which an antenna is to be used is an important factor in its design.)
The antenna offers reception within a range of up to 40 miles, though actual reception performance depends on your location and the type of signals being transmitted in your area (VHF/UHF).
It is used at VHF and UHF frequencies where antenna sizes are feasible. Often used for satellite communication, which uses circular polarization because it is insensitive to the relative rotation on the beam axis. [ae] Not to be confused with a "rubber ducky" antenna (normal mode helix), which is much smaller. [p]
The lowest frequencies used for radio communication are limited by the increasing size of transmitting antennas required. [6] The size of antenna required to radiate radio power efficiently increases in proportion to wavelength or inversely with frequency. Below about 10 kHz (a wavelength of 30 km), elevated wire antennas kilometers in diameter ...