[BC] "live" feeds

[Sam Roffe]

We used a dry pair for our STL for many years, since our TX Site was on
campus.  When the engineer of the time upgraded the audio processing, he
went with a fiber STL.  Currently we use a Fiber STL now.

You might even be able to dig up some old transformers from the old
telephone guys.

Sam

> -----Original Message-----
> From: broadcast-bounces at radiolists.net [mailto:broadcast-
> bounces at radiolists.net] On Behalf Of Bob Tarsio
> Sent: Tuesday, April 29, 2008 8:47 AM
> To: 'Broadcasters' Mailing List'
> Subject: RE: [BC] "live" feeds
> 
> 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
> _______________________________________________
> 
> 
> 
> _______________________________________________
> 
> The BROADCAST [BC] list is sponsored by SystemsStore - Your Premium
> Supplier Of Components To Build and Maintain A Technical
Infrastructure
> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com