Promax GV-698, Инструкция по эксплуатации

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1.2 Specifications
The values indicated with tolerances are guaranteed by the manufacturer, those
without are to be nominally expected within a group of identical instruments.
Specifications are valid 10 minutes after switching on.
TV SYSTEM
System PAL/SECAM NTSC
RF Standard B,G,H,D,K,K1,I,L M
No. of lines/frame 625 525
Field frequency 50 Hz 60 Hz
Line frequency 15625 Hz 15734 Hz
Horizontal synchronism
Line period (1/f
H
) 64 µs ± 100 ns 63.56 µs ± 100 ns
Front porch 1.6 µs ± 100 ns 1.59 µs ± 100 ns
Synchronism 4.8 µs ± 100 ns 4.77 µs ± 100 ns
Blanking 12 µs ± 100 ns 11.12 µs ± 100 ns
Vertical synchronism
Frame period
20 ms ± 100 ns 16.68 ms ± 100 ns
(H = 64 µs) (H = 63.56 µs)
Blanking
25 H + 12 µs 21 H + 11.12 µs
Duration of impulse of:
Pre-equalization 2.5 H 3 H
Equalization 2.5 H 3 H
Post-equalization 2.5 H 3 H
Scanning of picture Selectable: Interlaced ratio 2:1
Not interlaced
PAL (B,G,H,D,I) colour subcarrier
Frequency 4.43361875 MHz <± 30 ppm (10ºC to 40ºC)
Burst duration 2.4 µs (10 ± 1 period of Fsc)
Burst position 5.6 µs ± 100 ns from the line previous
synchronism flank.
Phase ± 135º referred to the U axis with the sequence
Line Frame
1 2 3 4
Even - - + +
Odd + + - -
Amplitude error
± 5 %
Phase error
± 3 %
Burst amplitude ON/OFF, selectable
Subcarrier amplitude ON/OFF, selectable
NTSC (M) colour subcarrier
Frequency 3.579545 MHz <± 30 ppm (10ºC to 40ºC)
Burst duration 2.38 µs (10 ± 1 period of Fsc)
Burst position 5.56 µs ± 100 ns from the line previous
synchronism flank.
Phase - 180º referred to the U axis
Amplitude error ± 5 %
Phase error
± 3 %
Burst amplitude
ON/OFF, selectable
Subcarrier amplitude
ON/OFF, selectable
05/96 GV-698