Merican Radio Tuning (1 Viewer)

scotjimland

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Jul 25, 2007
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Suffolk Coastal District, UK
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Timberland
I recall a similar post by Mick and Pat .. don't believe he found a 'workaround'

it has to do with FM channel spacing which is different in the US ..

more on wiki http://en.wikipedia.org/wiki/FM_broadcast_band

Center frequencies

While all countries use FM channel center frequencies ending in 0.1, 0.3, 0.5, 0.7, and 0.9 MHz, some countries also use center frequencies ending in 0.0, 0.2, 0.4, 0.6, and 0.8 MHz. A few others also use 0.05, 0.15, 0.25, 0.35, 0.45, 0.55, 0.65, 0.75, 0.85, and 0.95 MHz.

An ITU conference in Geneva, Switzerland, on December 7, 1984, resolved to discontinue the use of 50 kHz channel spacings throughout Europe.[1]

Most countries have used 100 kHz or 200 kHz channel spacings for FM broadcasting since this ITU conference in 1984.
Some digitally-tuned FM radios are unable to tune using 50 kHz increments. Therefore when traveling abroad, stations that broadcast on certain frequencies using such increments may not be heard clearly. This problem will not affect reception on an analog-tuned radio.
A few countries, such as Italy, which have heavily-congested FM bands, still allow a station on any multiple of 50 kHz wherever one can be squeezed in.
The 50 kHz channel spacings help prevent co-channel interference, and these take advantage of FM's capture effect and receiver selectivity.
 

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