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Subject: Re: Possibly incorrect FM region settings

Re: Possibly incorrect FM region settings

From: Bertrik Sikken <bertrik_at_sikken.nl>
Date: Sun, 25 Jan 2009 16:01:14 +0100

Jonas Häggqvist wrote:
> Bertrik Sikken wrote:
>
>> How about the following settings:
>> Europe: 87.5 - 108.0 MHz, 100 kHz steps, 50 us de-emphasis
>> US / Canada: 87.9 - 107.9 MHz, 200 kHz steps, 75 us de-emphasis
>> Japan: 76.0 - 90.0 MHz, 100 kHz steps, 50 us de-emphasis
>> World: 87.5 - 108.0 MHz, 50 kHz steps, 50 us de-emphasis
>
> How about:
> North America: 87.9 - 107.9 MHz, 200 kHz steps, 75 us de-emphasis
> Europe: 87.5 - 108.0 MHz, 100 kHz steps, 50 us de-emphasis
> Italy: 87.5 - 108.0 MHz, 50 kHz steps, 50 us de-emphasis
> Japan: 76.0 - 90.0 MHz, 100 kHz steps, 50 us de-emphasis
> Other (.05MHz steps): 87.5 - 108.0 MHz, 50 kHz steps, 50 us de-emphasis
> Other (.1MHz steps): 87.5 - 108.0 MHz, 100 kHz steps, 50 us de-emphasis
>
> I admit it will have some redundancy and waste some amount of space, but
> it should be more obvious to users what to pick. You could do away with
> "Other (.1MHz steps)" if you wanted, of course and just have a single
> "Other" with 50kHZ steps.

Ok, I agree this is a possible solution too.

My preference still goes to having just 4 options, because there are
basically just 4 known unique combinations of FM band, channel spacing,
de-emphasis.

The patch for having these 4 regions turns out to be quite simple, I'll
put it up later today on flyspray for further discussion.

Kind regards,
Bertrik
Received on 2009-01-25


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