[BC] "live" feeds

[Bob Tarsio]

Rick:

You might talk to the IT or telephone people on campus about a dry pair of
wires between your studio and the meteorology lab. For a relatively short
run of a few thousand feet you really can drive analog audio into a twisted
pair with good performance at the receiving end. I suspect you will be able
to do this with a pair of transformers without the need for equalization.
With this method there is no appreciable delay and the quality will be
excellent as long as you use a good pair of transformers that minimize
common mode noise (hum). I would suggest running the audio level at +4 to
+10 dBm and your SNR will be excellent. A mixer designed for broadcast use
would be suitable for this purpose if it has a balanced output with the
capability of running a nominal +4 dBm output. 

Since you asked about cost for a pair of good transformers such as the
Jensen line transformers would run about $180.00. That's about all you need
to spend and it is completely passive. 

When I was in college this is how we distributed audio from our campus
studios to all of the academic buildings and student center. This of course
was back in the 1970s when the only digital system that existed was a sort
of 10 bit system divided into unconventional 5 bit bytes. 

Contact me off line and I can give you some pointers on how to do this. 

Bob Tarsio

www.Broadcast-Devices.com
 
914-737-5032



Braintrust,

We're looking to set up an audio link to the brand new (and quite
spiffy) meteorology lab on campus, so that if there is an exciting
weather event, they can broadcast from the lab about it.  What would
you suggest that has a relatively low delay and is not prohibitively
expensive for a college station?  Phone and IP lines are probably
preferred.


TIA,
Rick Heil

-- 
Rick Heil
Operations Manager
90.9, WONY Oneonta
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