[GreenKeys] OT - FM radio going away in Norway.
Bruce Gentry
ka2ivy at verizon.net
Tue Apr 21 20:10:03 EDT 2015
The engineer I got the old equipment from at one of the stations told me
some of it was for TTY, I am only passing on what I was told. I wasn't
interested in the modems so I scrapped them. All this was in 1983. I
came to Syracuse in 1971, and never heard about the Rural Radio Network
until I found the equipment. For anything "rural" to originate in New
York City seems odd, but if they were transmitting TTY , it makes sense
because of the commodities exchanges in New York. Agriculture was a
major industry in New York back then.
Bruce Gentry, KA2IVY
On 4/21/15 7:37 PM, Duncan Brown wrote:
> "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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