Radio diffrerence between US & EU? - BMW Luxury Touring Community
 
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post #1 of 4 Old Jul 28th, 2010, 3:15 pm Thread Starter
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Radio diffrerence between US & EU?

Hi guys,

on the Finnish BMW forum a guy is asking for his friend who has a US spec 2000 LT the following:

His radio seems to be scanning only odd frequencies (90,1..90,3 ..90,5 MHz etc) . He is wondering are the US model radios different that EU model radios? Can he reprogram the radio or does he have to get a replacement?

I replied that to my knowledge they are the same. At least my radio worked fine in the US back in 2006.

But is it possible that in 2000 the US model radios were "handicapped" for only scanning odd frequencies?

Regards

Ari "the Farkle-Freak-Finn" Ignatius

Hyvinkää, Finland
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post #2 of 4 Old Jul 28th, 2010, 3:58 pm
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Re: Radio diffrerence between US & EU?

Quote:
Originally Posted by pozo_izquierdo
Hi guys,

on the Finnish BMW forum a guy is asking for his friend who has a US spec 2000 LT the following:

His radio seems to be scanning only odd frequencies (90,1..90,3 ..90,5 MHz etc) . He is wondering are the US model radios different that EU model radios? Can he reprogram the radio or does he have to get a replacement?

I replied that to my knowledge they are the same. At least my radio worked fine in the US back in 2006.

But is it possible that in 2000 the US model radios were "handicapped" for only scanning odd frequencies?

Regards
Apparently only the "odd" frequencies.

From wikipedia

FM radio channel assignments in the U.S.

In the United States, frequency-modulated broadcasting stations operate in a frequency band extending from 87.8 MHz to 108.0 MHz, for a total of 20.2 MHz. It is divided into 101 channels, each 0.2 MHz wide, designated "channel 200" through "channel 300." In actual practice, no one (except the FCC) uses these channel numbers; the frequencies are used instead.

To receive a station, an FM receiver is tuned to the center frequency of the station's channel. The lowest channel, channel 200, extends from 87.8 MHz to 88.0 MHz; thus its center frequency is 87.9 MHz. Channel 201 has a center frequency of 88.1 MHz, and so on, up to channel 300, which extends from 107.8 to 108.0 MHz and has a center frequency of 107.9 MHz.

Because each channel is 0.2 MHz wide, the center frequencies of adjacent channels differ by 0.2 MHz. Because the lowest channel is centered on 87.9 MHz, the tenths digit (in MHz) of the center frequency of any FM station in the United States is always an odd number. FM audio for television channel 6 is broadcast at a carrier frequency of 87.75 MHz, and many radios can tune down this low; a few low-power television stations licensed for channel 6 are operated solely for their right to use this frequency and broadcast only nominal video programming. For the same reason, assignment restrictions between TV stations on channel 6 and nearby FM stations are stringent: there are only two stations in the United States (KSFH and translator K200AA) licensed to operate on 87.9 MHz, both due to being forced off of another channel. Therefore, in effect, the FM broadcast band comprises only FM channels 201 (88.1 MHz) through 300 (107.9 MHz).

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post #3 of 4 Old Jul 29th, 2010, 12:23 pm
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Re: Radio diffrerence between US & EU?

Quote:
Originally Posted by pozo_izquierdo
Hi guys,

on the Finnish BMW forum a guy is asking for his friend who has a US spec 2000 LT the following:

His radio seems to be scanning only odd frequencies (90,1..90,3 ..90,5 MHz etc) . He is wondering are the US model radios different that EU model radios? Can he reprogram the radio or does he have to get a replacement?

I replied that to my knowledge they are the same. At least my radio worked fine in the US back in 2006.

But is it possible that in 2000 the US model radios were "handicapped" for only scanning odd frequencies?

Regards
All FM radios in US scan only odds, whereas in Europe they scan every one tenth of the MHz
Most aftermarket radios have can be switched either way (US or Europe). I wonder if BMW radio can also be switched.

BJ

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post #4 of 4 Old Jul 29th, 2010, 12:46 pm
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Re: Radio diffrerence between US & EU?

The BMW radio should have an internal switch for European or North American FM tuning.
Probably means taking the stingray off and searching for it.
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