Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!cronkite!exodus!oobleck.Eng.Sun.COM!bender From: bender@oobleck.Eng.Sun.COM (memory fault - core dumped) Newsgroups: sci.electronics Subject: Re: MTS method ? Message-ID: <15678@exodus.Eng.Sun.COM> Date: 24 Jun 91 06:01:17 GMT References: Sender: news@exodus.Eng.Sun.COM Organization: Sun Microsystems, Mt. View, Ca. Lines: 25 In article mrapple@quack.sac.ca.us (Nick Sayer) writes: ->Let's say I want to build a cable ready, Stereo/MTS television demodulator ->(i.e. the VCR without the VCR that we've all been talking about lately). ->Fine. I need to build a frequency generator to generate a frequency ->suitable to mix with the RF to get to the first IF of 45 MHz. From ->there, Motorola makes a pair of chips to do IF amplification and TV ->decoding. Fine. The FM subcarrier would, theoretically, be available ->at 50.75 MHz (or so). Fine again. Now the MTS part. How does MTS work? ->Is it similar to FM broadcast stereo ( DSB no carrier L-R at x kHz and ->pilot at x/2 kHz ) ? I don't think so or at least if so, x is not ->38 kHz, since channel six here has stereo+SAP, but doesn't register ->on my stereo (which tunes that low). So how does it work, and does ->anyone have any chips to do this? Has Radio Electronics done this yet? ->I'd think the demand would be large enough for them to take a crack ->at it. Of course, you could also go to surplus stores/sales, pawn shops, garage sales, etc... and pick up a non-working MTS VCR, pull the tuner and possibily power supply out of it and put the stuff in a box... mike -- ------------------------------------------------------------------------ 1985 Honda Shadow VT1100 | DOD #000007 1989 Honda NX-650 | AMA #511250