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From: 8156BOYDK@vmsf.csd.mu.edu (Kevin Boyd)
Newsgroups: comp.dcom.telecom
Subject: CNN Gulf Communications
Message-ID: <16211@accuvax.nwu.edu>
Date: 19 Jan 91 23:11:00 GMT
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X-Telecom-Digest: Volume 11, Issue 50, Message 8 of 11


>The four-wire stuff was two lines, one in so they could hear the AFB

For the record, it's "IFB" as in "Interruptable FeedBack"...

Essentially this allows the field reporter/anchor to hear the other
"aircheck" audio(Studio anchor and taped segments)...

Usually is fed "MixMinus" which is a state that has everything except
the voice of the field reporter/anchor.  This is because the
satellite lag time for ones own voice is so distracting that it makes
it almost impossible to continue talking.

It also allows the field reporter/anchor to hear directions from the
producer back in the control room. (Hence, "Interruptable")


Regards,

Kevin Boyd                            | BITNET    8156boydk@MUCSD.BITNET
Marquette University                  | INTERNET  8156boydk@VMSD.CSD.MU.EDU
Milwaukee, WI, U.S.A.                 | Phone     (414)223-4873
Broadcasting and Electronic Media &   | FAX       (414)288-3300
Computer Services Division            | "All views expressed are my own..."