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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: why not use 'proper' TV replacement "rabbit ears" posted by joehowansky@gmail.com on February 14, 2019 at 14:32:29:
that is too short for "optimum" reception of FM; these 'rabbit ears' are indeed aimed at higher frequency (shorter wavelength) transmissions (i.e., modern over the air "HDTV").
They could work, but they won't be as good as traditional VHF (analog) TV rabbit ears.
The FM radio band lies between the center channel frequencies of the old (analog) TV channels 6 and 7 (in the US, at least).
FM is in the range of 88 to 108 MHz (give or take) in the US and much of the rest of the world (not Japan).
Each "arm" (ear) of the rabbit ears I have here has a length of about 39 inches (i.e., about 1 meter, and, of course, can be "tuned" by making them shorter to "match" the desired frequency to be received (or just empirically).
An FM frequency of 90 MHz corresponds to a wavelength of a little less than 11 feet (3.33 meters). A half wavelength (the "optimal" center-fed dipole length) is thus about 5-1/2 feet.
all the best,
mrh
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Follow Ups
- If I read that correctly, they only extend to 14 inches - mhardy6647 15:55:29 02/14/19 (1)
- RE: If I read that correctly, they only extend to 14 inches - joehowansky@gmail.com 15:40:21 02/16/19 (0)
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