Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!casbah.acns.nwu.edu!telecom-request Date: 20 Mar 91 18:16:03 GMT From: Tim Pozar Newsgroups: comp.dcom.telecom Subject: Re: Microwave / Optical Links for Audio Message-ID: Organization: Late Night Software (San Francisco) Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 223, Message 7 of 9 Lines: 27 In article Kauto.Huopio@lut.fi (Kauto Huopio OH5LFM) writes: >> I need to run a stereo audio signal from our studio to a cable >> company's head-end about two miles away. A four-wire non-directional >> phone line is $55/mo + 760 to set up, and will certainly require some >> serious EQ (loading coils are probably present). I'm wondering if > Well, I think all you need is a good ol' four-wire. For two miles I > think that you can send the composite stereo trhough one single pair > without too much hassle. The only thing you'll propably need is two > 300 ohm balancing transformers (?) and a good parametric EQ. This will not work, unless you can get a all-pass filter to correct for the phase distortion that the parametric EQ will introduce into the path. I also haven't found a parametric EQ that will pass the 75KHz or so needed for composite stereo. Perhaps the orginal poster should consider an STL at 950MHz? Tim pozar@lns.com Fido: 1:125/555 PaBell: 415-788-3904 USNail: KKSF-FM / 77 Maiden Lane / San Francisco CA 94108