[GreenKeys] OT - FM radio going away in Norway.

[Duncan Brown]

  "FM radio" is not "going away in Norway".
  It is FM _ANALOG_ radio that is going away. The digital DAB broadcasts 
are still transmitted using a frequency modulated carrier. (I don't 
think anyone transmitts digital content using AM!)
Bruce - I used to listen to the Rural Radio Network, but didnt know 
about the subcarrier TTY - can you expand on that any??

I heard that one of the causes of the demise of the RRN was the building 
of the World Trade Center towers - that they interfered with the 
original signal coming out of NY City.  Later there was the IVY network 
with the same stations - but I don't know how they distributed the signal.

Have fun,

Duncan
K2OEQ



On 21-Apr-15 14:58, Bruce Gentry wrote:
> Almost 60 years ago, we had the Rural Radio Network in central New 
> York. It was an FM relay system where each station transmitted the 
> programs to the next in the chain. They also transmitted Teletype 
> messages mostly of agricultural  interest on a subcarrier. It worked 
> fairly well as long as no station in the chain failed. It wasn't 
> always catastrophic if one did, because the station behind the failed 
> one could sometimes receive the the one before the failed one and 
> carry on the network.  It broke apart in the 1960s because the 
> stations were individually owned and FM was at the bottom of 
> popularity and could not make enough profit to keep operating.  Most 
> of these stations did not have a profitable AM affiliate to carry them 
> through the hard times until the 1970s when FM became the rage.  I had 
> some of the receivers, modems, and other equipment from a couple of 
> these stations in the early 1980s, it's all since been scrapped or 
> given to friends.
>
>       Bruce Gentry, KA2IVY
>
>
>
> On 4/21/15 11:41 AM, Jeffrey D Angus wrote:
>> Remember when FM was first introduced? "Quality audio without the
>> noise"
>>
>> And especially with the advent of FM2 band (88-108) the BIG selling
>> point was "Hi-fi." Then of course stereo for an even better "listening
>> experience."
>>
>> Now the corporate raiders have figured out that the bandwidth is
>> better suited to multiple income streams. They same way they've
>> been pushing for IBOC on the AM bands.
>>
>> And it's going to be just like cable TV. 600 channels of crap.
>>
>> /end rant
>>
>>
>>
>>
>
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