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Radio Road Which tuner to get and getting the most from it. Thank God, for the radio! |
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Radio Road Which tuner to get and getting the most from it. Thank God, for the radio! |
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In Reply to: Re: Huh? posted by Ugly on December 3, 2006 at 04:28:48:
It's done with a circular polarization FM broadcast antenna. from this site, for instancehttp://www.scott-inc.com/html/fmant.htm
"Polarization.Originally the fm service was slated to be horizontally polarized. This worked best with horizontal antennas. Station power level is still considered to be that which is radiated in the horizontal plane. Later the commission authorized stations to use an equal amount of power radiated in the vertical plane. By controlling the phase relationship of the two radiated planes, a rotating or circular polarization is created. This is compatible with both horizontal and vertical receive antennas. The quality of the circular polarization is the horizontal to vertical energy balance, or axial ratio, and should ideally be one to one. This is rarely achieved with side-mounted fm antennas in all directions. Does perfect axial ratio make much difference? I suggest that it does not."
For the FCC database, start here, put in the call letters, then click on the blue call letter link for engineering data.
http://www.fcc.gov/mb/audio/fmq.html
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- Re: Huh? - BFitz 19:33:14 12/03/06 (0)
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