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From: lef@nlm-vax.ARPA (Larry Fitzpatrick)
Newsgroups: net.video,net.micro
Subject: Re: Computer monitors as TV sets
Message-ID: <137@nlm-vax.ARPA>
Date: Thu, 7-Feb-85 10:27:55 EST
Article-I.D.: nlm-vax.137
Posted: Thu Feb  7 10:27:55 1985
Date-Received: Wed, 13-Feb-85 02:30:12 EST
References: <128@unccvax.UUCP>
Reply-To: lef@<128@unccvax.UUCP>.UUCP (Larry Fitzpatrick)
Organization: NLM/LHNCBC, Bethesda, Md.
Lines: 46
Xref: watmath net.video:959 net.micro:9349
Summary: 

Although I missed the beginning of this discussion, there are some
points raised in this article which are of interest to me. I have
been considering getting a monitor (without tuner) as a TV set and
using the tuner to a VCR (other?). The implications are not all that
clear to me.

In article  dsi@unccvax.UUCP (Dataspan Inc) writes:
>
>     If you were to do I/Q axis demodulation with the full bandwidth, you
>would notice that NTSC really can produce beautiful colour pictures. The
>fact that most "consumer" TV sets hack 66 percent of the I-channel bandwidth
>(to save money) from 1.5 mc to 500 kc should disturb most people. 
>
What does this mean ? What is the I/Q axis ?
What is the I-channel? and what units are `mc's ?

>     You are definitely on the right track, though. Assuming you could
>get a "switchable" RGB-NTSC high res monitor, one benefit would be the...

I recently saw a NEC hi-res monitor (don't remember the model), sans
tuner, with RGB, NTSC and VTR(?) inputs for $425. After watching some
local TV on that for a while, I was very disappointed in the picture on
the high-dollar Mitsubishi TV's. I don't know what they were using for a
TV tuner. Would one get as good a picture using a VCR tuner to supply the
input ? (The next pt in this referenced article seems to hint "no").

>     We won't even discuss colour under VCR's here. GAKKKKKKKKKKKKKKK!!!

Could you please ?

> ..., the high res monitor will suffer due to all the manglement
>prior to the screen. It's as if you connected a pair of JBL 4311 studio
>monitors to the amplifier in a Close-N-Play, thence to a pocket AM radio,
>thence to your local AM station, with a compact disc player providing
>the program material. 
>

Is it really this bad ?
How much does a fine TV/tuner amplifier cost ?



I would appreciate any help here.

	-fitz
	lef@nlm-vax