Characteristics of B,G/PAL and M/NTSC television systems

I have collected this information from Recommendation ITU-R BT.470-5 CONVENTIONAL TELEVISION SYSTEMS.

Note!
M/NTSC system implemented in Japan differs slightly from the description below.

I have dropped out most of the small exceptions to clarify the basic characteristics. I have not described the colour encoding principles. System B is used in VHF band and system G in UHF band.

Basic Characteristics

Basic characteristics of video and synchronizing signals
Characteristics
B,G/PAL
M/NTSC
Number of lines per picture (frame)
625
525
Field frequency, nominal value (fields/s)
50
59.94
Line frequency fH
15625▒0.0001%
15734.264▒0.0003%
Assumed gamma of display device
2.8
2.2
Nominal video bandwidth (MHz)
5
4.2

Line Synchronizing Signal

Nominal and peak levels of the composite video signal (%)
Durations measured between half-amplitude points on the approriate edges
Symbol Characteristics
B,G/PAL
M/NTSC
1
Blanking level
0
0
2
Peak white-level
100
100
3
Synchronizing level
-43
-40
4
Difference between black and blanking levels
0
7.5▒2.5
5
Peak-to-peak value of burst
43▒5
40▒4
7
Peak level including chrominance signal
133
120

Details of line synchronizing signals
Build-up times measured between 10% to 90% of the pulse edges
Symbol Characteristics
B,G/PAL
M/NTSC
H
Nominal line period (Ás)
64
63.5555
a
Line-blanking interval (Ás)
12▒0.3
10.9▒0.2
b
Interval between time datum (0H) and back edge of line-blanking pulse (Ás)
10.5
9.2 to 10.3
c
Front porch (Ás)
1.5▒0.3
1.27 to 2.22
d
Synchronizing pulse (Ás)
4.7▒0.2
4.7▒0.1
e
Build-up time of the line blanking pulse (Ás)
0.3▒0.1
<0.48
f
Build-up time of the line synchronizing pulse (Ás)
0.2▒0.1
<0.25
g
Start of sub-carrier burst (Ás)
5.6▒0.1
5.3 (4.71 to 5.71)
h
Duration of sub-carrier burst (Ás)
2.25▒0.23 (10▒1 cycles)
2.23 to 3.11(9▒1 cycles)

Field Synchronization of PAL System

Details of B,G/PAL field synchronizing signals
Durations measured between half-amplitude points on the approriate edges
Build-up times measured between 10% to 90% of the pulse edges
Symbol Characteristics
Value
v
Field Period (ms)
20
j
Field-blanking interval
25 H + a
j'
Build-up time of the edges of field-blanking pulse (Ás)
0.3▒0.1
k
Interval between front edge of field-blanking interval and front edge of first equalizing pulse (Ás)
3▒2
l
Duration of first sequence of equalizing pulses
2.5 H
m
Duration of sequence of synchronizing pulses
2.5 H
n
Duration of second sequence of equalizing pulses
2.5 H
p
Duration of equalizing pulses (Ás)
2.35▒0.1
q
Duration of field-synchronizing pulses (Ás)
27.3
r
Interval between field-synchronizing pulses (Ás)
4.7▒0.2
s
Build-up time of synchronizing and equalizing pulses (Ás)
0.2▒0.1

Field Synchronization of NTSC System

Details of M/NTSC field synchronizing signals
Durations measured between half-amplitude points on the approriate edges
Build-up times measured between 10% to 90% of the pulse edges
Symbol Characteristics
Value
v
Field Period (ms)
16.6833
j
Field-blanking interval
(19 to 21) H + a
j'
Build-up time of the edges of field-blanking pulse (Ás)
<6.35
k
Interval between front edge of field-blanking interval and front edge of first equalizing pulse (Ás)
1.5▒0.1
l
Duration of first sequence of equalizing pulses
3 H
m
Duration of sequence of synchronizing pulses
3 H
n
Duration of second sequence of equalizing pulses
3 H
p
Duration of equalizing pulses (Ás)
2.3▒0.1
q
Duration of field-synchronizing pulses (Ás)
27.1
r
Interval between field-synchronizing pulses (Ás)
4.7▒0.1
s
Build-up time of synchronizing and equalizing pulses (Ás)
<0.25

Radiated Signal

Characteristics of the radiated signal
Levels in this table are % of peak carrier.
Characteristics
B,G/PAL
M/NTSC
Nominal RF channel bandwidth (MHz)
B:7
G:8
6
Sound carrier relative to vision carrier (MHz)
+5.5▒0.001
+4.5
Nearest edge of channel relative to vision carrier (MHz)
-1.25
-1.25
Nominal width of main sideband (MHz)
5
4.2
Nominal width of vestigial sideband (MHz)
0.75
0.75
Type and polarity of vision modulations
C3F neg.
C3F neg.
Synchronizing level (%)
100
100
Blanking level (%)
75▒2.5
72.5 to 77.5
Difference between black level and blanking level (%)
0 to 2
2.88 to 6.75
Peak white level (%)
10 to 15
10 to 15
Type of sound modulation
F3E
F3E
Frequency deviation (kHz)
▒50
▒25
Pre-emphasis for modulation (Ás)
50
75