4:2:2

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paulselvan

Member
Messages
15
My Satellite Setup
Ø 85cm
motor Jaegger HH
Fortec Passion HD
My Location
France
Hi,
Many subjects in this forum speak about 4:2:2
what's 4:2:2?and how can i test it?
 
Lazarus

Lazarus

Tout Rond Bon Oeuf
Staff member
Messages
25,572
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
It's a Screen Ratio: Most DVB/MPEG-2 boxes receive a 4:2:0 screen ratio for picture resolution, but certain DVB/MPEG-2 channels, usually network and/or studio feeds, use a 4:2:2 screen ratio.

This involves the ratio of video data to vertical pixel and horizontal pixel colour. It isn't part of the standard DVB specifications but is used mainly by studios that need better picture quality than standard DVB offers.

Most FTA receivers can't receive signals with the 4:2:2 ratio, but some can.

Contrary to belief, 4:2:2 isn't a form of Encryption.

As far as we punters are concerned, 4:2:2 is increasingly used for Sports etc. feeds and without suitable kit, part of the hobby remains unfulfilled!
 
D

danit

Regular Member
Messages
102
My Satellite Setup
motorised Gibertini 125 - fixed dish 72 -
stabHH120 -
lnb Inverto Black Ultra 0.2 - Sharp 0.4 -
Jepssen STHD3 AzboxHD Premium / 1TB WD e-sata hdd -
Fortec Passion HD -
QUALI IRCI HDTV -
Homecast PVR 300 -
Digiscrappybox -
various CAMs -
vari
My Location
8e 43.9n
Tivù said:
Most FTA receivers can't receive signals with the 4:2:2 ratio, but some can.
only non-professional suitable receivers are Quali TV 1080 (but no mpeg4, no dvb-s2) and AzboxHD (both Elite and Premium)

otherwise a PC SAT card

p.s.: why in Fortec HD section? there's no Fortec receiver 4:2:2 compatible...
 
B

Burnham Beech

Specialist Contributor
Messages
1,021
Another way to clear 4:2:2 channels is to use a cheap DM500 clone and stream to a PC.
 
P

paulselvan

Member
Messages
15
My Satellite Setup
Ø 85cm
motor Jaegger HH
Fortec Passion HD
My Location
France
danit said:
p.s.: why in Fortec HD section? there's no Fortec receiver 4:2:2 compatible...
someone asked on one topics that if passion does blind scan and 4:2:2...so why:cool:
 
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