[linux-dvb] Video quality: Y/C vs. FBAS (Cinch)

[Andreas Portz <Andreas.Portz@gmx.de>]

Hi!

Nearly everyone told me, that the signal quality of the "normal" cinch
output of my Siemens 1.3 is far behind RGB over Scart or SVideo. So I
made 5 (five!) different connector cables from J2 to Hosidien Mdist4. In
the meantime, I compared the picture of my old analog receiver with the
one of the DVB card connected with the cinch-to-Scart cable, which was
delivered with the Siemens card. I assume, that this is a cheap version.
Nevertheless, the video signal was a little better then the old receiver
connected with an old coax cable (not with Scart!) to the TV. In the
next step, I added a very cheap (1 EUR at Reichelt) 10m cinch add-on
cable to the DVB connection. The picture quality didn't get worse.
Then I tried the different J2 cables I soldered:
- 20cm with shielded mini coax cables from the J2 to the Mdist4
- only 5cm flat cable from the old PC serial connector direct attached
to the Mdist4
- different ways of connecting the cables to the J2: soldering, crimping

- ...
The Mdist4 was connected to a 10m SVideo cable of good quality (gold
surface etc.).
But the signal of the 10m cinch cable is obviously a little better. It's
a little sharper. You can see more details in the face of persons on TV
(hair, skin structure, etc.)
At least, it's a Philips 9006, which is IMHO one of the best 100Hz TV on
the market. The cinch quality is as good as the best other pictures I
saw during comparing different TVs before buying this one. I hat no
possibility to connect a DVD-Player with a good Scart cable to the TV,
but I assume the signal quality could not much better.

What's your opinion? Did I make some mistakes with my J2 cable or am I a
lucky guy that the my TV cooperates so fine with the cinch output?


  -Andreas

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