mvalera wrote:
> mvalera wrote:
>> Maybe I'm asking a dumb question... but how can you pick up radio
>> frequency - electromagnetic interference on an optical cable using light
>> to transmit the data?

> Oops sorry! You're referring to the coax version. I always forget that
> spdif is either optical or coax. :p

Its still a decent question.
When you are running analog signals, analog RF can bleed into nearly 
everything. I live about 400 meters from a 50,000 watt FM station, and 
its RF bleeds into nearly everything. Its one of the reasons all the 
cabling in my studio is balanced. And if I turn up my tube guitar amp to 
11, I can hear the radio station unless I'm very careful.

Back when I had a separate FM tuner and amp setup, I could tune in the 
station, and unplug the tuner, and still get lots of signal out the 
speakers.

Analog amps tend to amplify everything.

But if the DAC is properly isolating the Digital from the Analog side, 
you should have a problem. The 172Kb/s on off stream doesn't modulate 
into anything audible by humans.

It seems to me that if you are feeding the output of a SqueezeBox to an 
external DAC using SPDIF, you should expect not to have a problem. There 
is no sense replacing the SqueezeBox DAC with one retailing for under a 
couple hundred bucks.



-- 
Pat
http://www.pfarrell.com/music/slimserver/slimsoftware.html

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