P
Pioneer
My problem is that I can't for example watch TV or capture from video
input (composite) with PAL-N (which is the video standard in
Argentina).
This doesn't occur in NTSC mode when recording from a Camera or VCR.
So the card works correctly with NTSC standard. The manual states that
it suppose
to be compatible with PAL-N and PAL-M !!!! (Argentina and Brazil TV
Standard)
According to what I read there are 2 standards for ATI
(NTSC, PAL-M , PAL-N) and a (PAL/SECAM) version.
ATI states in the manual and on the official web site
(http://mirror.ati.com/products/radeon9700/aiw9700pro/specs.html)
that my card should be compatible with PAL-N TV Standard.
I've tried with a PAL-N to PAL-B transcoder and the card worked
correctly.
I've got a NTSC version that theorically works only with NTSC
according to ATI SUPPORT, so how do they explain what I have said
before.
Finally I have made a research myself and I found out that Argentina
uses a modified PAL standard called "PAL-Nc" that differs from PAL-N
used by Paraguay and Uruguay
PAL (N)
Line/Field = 625/50
FH = 15.625 khz
FV = 50 Hz
FSC = 4.43361875 Mhz
Blanking Setup = 7.5 IRE
Video Bandwidth = 5.0 Mhz
Audio Carrier = 5.5 Mhz
Channel Bandwidth = 6 Mhz
PAL (Combination N)
Line/Field = 625/50
FH = 15.625 khz
FV = 50 Hz
FSC = 3.58205625 Mhz (Burst Frequency)
Blanking Setup = 0 IRE
Video Bandwidth = 4.2 Mhz
Audio Carrier = 4.5 Mhz
Channel Bandwidth = 6 Mhz
Sound Issue:
When selecting NTSC as TV Standard the sound is correct because PAL-Nc
uses the same Audio Carrier (4.5 Mhz)
I suppose that's the reason why the ATI Radeon 9700 AIW doesn't work
in Argentina Television standard.
FSC = color subcarrier frequency
Burst (Color)
A color reference signal included as part of the overall composite
video signal. Eight to ten cycles of color sub-carrier (3.579545 MHz,
often abbreviated as 3.58) are inserted before the start of every
horizontal line. It can be seen just following the H sync pulse in the
H blanking interval. It provides color-synchronizing information for
the color decoding circuits in monitors, receivers and other TV
equipment.
Blanking setup:
The video signal level corresponding to black areas in a scene. For a
composite signal, black is standardized at +7.5 units as viewed on a
waveform monitor IRE scale. This elevated black level is often
referred as "setup" and serves as a guard band between video and sync.
For component video, black is at 0 units. The video level immediately
preceding or following horizontal sync exclusive of the active video
region. The video level for blanking is defined as 0 IRE. In the case
of PAL,blanking level and black level are the same.
There are two versions of PAL-N. As far as I can tell the
difference is the vertcal sync duration (5 or 6 lines), and some pulse
width differences.
There are LOTS of small differences between the two versions of PAL N,
all in the scan/blanking parameters. Field blanking is one such,
mostly 19-25H but 25H in Argentina.
input (composite) with PAL-N (which is the video standard in
Argentina).
This doesn't occur in NTSC mode when recording from a Camera or VCR.
So the card works correctly with NTSC standard. The manual states that
it suppose
to be compatible with PAL-N and PAL-M !!!! (Argentina and Brazil TV
Standard)
According to what I read there are 2 standards for ATI
(NTSC, PAL-M , PAL-N) and a (PAL/SECAM) version.
ATI states in the manual and on the official web site
(http://mirror.ati.com/products/radeon9700/aiw9700pro/specs.html)
that my card should be compatible with PAL-N TV Standard.
I've tried with a PAL-N to PAL-B transcoder and the card worked
correctly.
I've got a NTSC version that theorically works only with NTSC
according to ATI SUPPORT, so how do they explain what I have said
before.
Finally I have made a research myself and I found out that Argentina
uses a modified PAL standard called "PAL-Nc" that differs from PAL-N
used by Paraguay and Uruguay
PAL (N)
Line/Field = 625/50
FH = 15.625 khz
FV = 50 Hz
FSC = 4.43361875 Mhz
Blanking Setup = 7.5 IRE
Video Bandwidth = 5.0 Mhz
Audio Carrier = 5.5 Mhz
Channel Bandwidth = 6 Mhz
PAL (Combination N)
Line/Field = 625/50
FH = 15.625 khz
FV = 50 Hz
FSC = 3.58205625 Mhz (Burst Frequency)
Blanking Setup = 0 IRE
Video Bandwidth = 4.2 Mhz
Audio Carrier = 4.5 Mhz
Channel Bandwidth = 6 Mhz
Sound Issue:
When selecting NTSC as TV Standard the sound is correct because PAL-Nc
uses the same Audio Carrier (4.5 Mhz)
I suppose that's the reason why the ATI Radeon 9700 AIW doesn't work
in Argentina Television standard.
FSC = color subcarrier frequency
Burst (Color)
A color reference signal included as part of the overall composite
video signal. Eight to ten cycles of color sub-carrier (3.579545 MHz,
often abbreviated as 3.58) are inserted before the start of every
horizontal line. It can be seen just following the H sync pulse in the
H blanking interval. It provides color-synchronizing information for
the color decoding circuits in monitors, receivers and other TV
equipment.
Blanking setup:
The video signal level corresponding to black areas in a scene. For a
composite signal, black is standardized at +7.5 units as viewed on a
waveform monitor IRE scale. This elevated black level is often
referred as "setup" and serves as a guard band between video and sync.
For component video, black is at 0 units. The video level immediately
preceding or following horizontal sync exclusive of the active video
region. The video level for blanking is defined as 0 IRE. In the case
of PAL,blanking level and black level are the same.
There are two versions of PAL-N. As far as I can tell the
difference is the vertcal sync duration (5 or 6 lines), and some pulse
width differences.
There are LOTS of small differences between the two versions of PAL N,
all in the scan/blanking parameters. Field blanking is one such,
mostly 19-25H but 25H in Argentina.