Re: [Discuss-gnuradio] Radio frequency range description list?

[Alexandru Csete]

Hi Andre,

I think it would be a mistake to consider a no reply on this list as a
general no to your question. Clearly, there must be such databases out
there, otherwise maintaining things like the US Frequency Allocation
Chart [1] or the ITU-RR [2] would be a nightmare. How you get the
source of those publications I do not know. There are also smaller
databases embedded in various SDR and other receiver software out
there that could be a starting point.

I foresee two significant challenges in implementing your idea:
- Most of the spectrum is allocated for multiple uses
- Allocations are in most cases made for specific uses but they do not
necessarily imply a specific configuration

I think it will be a big help for you to narrow down the scope as much
as possible.

[1] 
http://en.wikipedia.org/wiki/File:United_States_Frequency_Allocations_Chart_2011_-_The_Radio_Spectrum.pdf
[2] http://www.itu.int/pub/R-REG-RR


On Tue, Apr 2, 2013 at 5:29 AM, Andre-John Mas <address@hidden> wrote:
> Hi,
>
> In the absence of any existing solution I am interested in trying to put
> something together, possibly as a GitHub project?
>
> Although a Wiki could be used, my focus is on a solution that is machine
> parsable, so any application could make use of it. I am not sure the best
> file format to use, but currently three come to mind:
>   - xml
>   - json
>   - csv
>
> From looking at some documents that list frequency allocations, I figure
> that the files would be split into individual files, that cover the
> allocation by ITU region, country and other group, with the footnotes being
> in files separate to the allocation list, so that they could eventually be
> localised if need be. Something like:
>
> frequency-allocations/
>    itu_region1.txt
>    itu_region2.txt
>    eu.txt
>    uk.txt
>    us.txt
> footnotes/
>    ca.txt
>    us.txt
> rules/
>    us.txt
>
>
> The fields I am thinking of are, at this point
>  - frequency range
>  - footnotes
>  - rules
>  - service type
>  - service category
>  - data format
>
> This is a first stab, so any feedback would be useful. One thing that I seem
> to be struggling with is how best to specify information that would make it
> clear which data encoder/decoder to be using. For example, I can imagine an
> application detecting that you have selected a frequency range that
> corresponds to GPS and brings a view that shows the GPS data in a human
> readable form or that you are in a range that represents broadcasts TV and
> brings up a view that shows the broadcast data.
>
> It may also be useful to have a list of channels, according to service type?
>
> Please let me know what you think.
>
> Andre
>
>
>
>
>
>
> ________________________________
> From: address@hidden
> To: address@hidden
> Date: Mon, 1 Apr 2013 01:13:17 +0000
> Subject: [Discuss-gnuradio] Radio frequency range description list?
>
>
> Hi,
>
> Has anyone created a machine parsable file that lists radio frequencies and
> what is covered by that range?
>
> At the simplest level I am thinking of something that would include country
> code, a frequency range and the identifier to what that range is, and
> possibly a string indicating typical data encoding. The idea being when
> using a UI, such as Gqrx you would be able to have a label identifying what
> sort of data you should be seeing and in other cases use this information
> for automatically loading the right configuration(s) for handling that
> frequency range.
>
> Andre
>
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