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Radio frequencies for Europe and Rest of the World #3

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pbriesch opened this issue Sep 30, 2017 · 1 comment
Open

Radio frequencies for Europe and Rest of the World #3

pbriesch opened this issue Sep 30, 2017 · 1 comment

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@pbriesch
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Hi,

I'm located in Europe and the FCC database, of course, does not include the stations over here.
Is there a way to enter the frequency of a radio station manually?
The possibility of a frequency scan would be very appreciated .

Regards, Paul

@dsward2
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dsward2 commented Sep 30, 2017

Hi Paul -

If a similar public database available for European stations, please post a link and I'll see if it is possible. It would need to be the kind of database that responds to HTTP requests (RESTful API).

Another idea is for LocalRadio to have a built-in general purpose web browser that can automatically detect HTML table elements containing possible frequencies, and selectively import the user's choices into the database. (What could possibly go wrong?)

A couple of other possibilities - LocalRadio uses a SQLite database to store frequencies, so an application like SQLiteStudio can be used to manually inspect and modify the database. It is also possible to develop separate applications that can use the LocalRadio SQLite database, including import and export.

Frequency scanning is currently available in the app, although I haven't tested it much. In the Tuner page, select the Advanced Tuner, then see the text fields for Scan Range Start Frequency, Scan Range End Frequency and Scan Frequency Interval.

During range scanning, you will want to adjust the squelch level high enough to silence the channels of static. Watch the live signal levels, usually delayed by several seconds after actual radio reception, and adjust the squelch accordingly.

It may be possible to create a LocalRadio category containing several frequency ranges to scan. That technique could be used to "lock out" some frequencies in the middle of a range that would otherwise interrupt continuous scanning.

See Kyle Keen's blog for more info about range scanning, squelch, etc. -

http://kmkeen.com/rtl-demod-guide/

thanks,
Doug

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