[CentOS] live audio feed via telephone link

Les Mikesell lesmikesell at gmail.com
Tue Mar 31 03:39:22 UTC 2009


JohnS wrote:
> On Mon, 2009-03-30 at 22:34 +0200, Michel Daggelinckx wrote:
>> John R Pierce wrote: 
>>> Les Mikesell wrote:
>>>   
>>>> It sounds like this location is just begging for wimax or some other 
>>>> suitable internet service.  What kind of place can support a radio 
>>>> station but not an internet presence these days?
>>>>   
>>>>     
>>> the original poster indicated the FM station was on an American Indian 
>>> reservation in a very remote canyon, and the ONLY phone lines available 
>>> were 2 pairs of LONG haul copper POTS lines, one currently used by the 
>>> stations telephone service, the other available for modem use.   They 
>>> are using a microwave link to get from the station to the hilltop 
>>> transmitter, but that the nearest 'real' town with a telephone CO that 
>>> would support any sort of real internet service is way too far away for 
>>> FM reception, even with a directional yagi.
> 
>> these pages are in dutch but maybe you can contact these guy's to see
>> if they can help with your problem.
>> they sucessfully made a 42KM wifi link and are going to try a 102KM
>> link with standard wifi gear and grid antenna's
>>
>> info at wirelessantwerpen.be
>>
>> In the unlikely case they don't speak english i can translate for you
> ---
> 
> For what that guy will spend in that, that is just crazy. But still a
> good idea non the less. Here's the solution...
> 
> Two - Way Satellite Up and Down. There will be at least a half a second
> delay. The OP will be able to stream the FM signal to the Web his self
> with his own server. He can take a direct AF[1]output to a sound card
> input into the server from the FM transmitter. If the OP runs the
> station he will know what an AF[1] output is and will need an attenuator
> between the two. There are a many Linux Apps that can pickup an
> AF[1]audio output into a sound card.
> 
> The only drawback to this is the Sat Connection cost fee per month.
> Being this is on a "indian reservation" I would seriously look into
> government grants for this if I were the Project Manager (technology
> grants).  The only company I really know is Motorola that can provide a
> hardware solution for this type of solution.
> 
> 1- [AF] audio frequency

There are some satellite internet providers that might work too, but the 
consumer-priced versions like Starband and Wildblue have usage caps on 
their normal plans so you'd have to work something out.

--
   Les Mikesell
    lesmikesell at gmail.com


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