Atec Tektronix-VM700T Uživatelský manuál Strana 3

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V
ertical interval test signals can be seen very clearly for additional analysis of the signal.
These can be printed as support documentation for automatic measurement results.
B
E
E
ven a single horizontal synchronization pulse can be displayed at a high intensity.
C
In Vector Mode, the VM700T becomes a digital vectorscope with an electronic graticule. A
“Color Bar Search’’ feature makes it easy to quickly display a line containing a color bar
test signal.
F
Main Measure Mode display of available measurements.
D
G
Picture Mode display. (Video courtesy of KOIN-TV, Portland, Oregon.) Measure Mode DGDP special position acquisition feature.
0.5
0.0
Volts
S
ound-In-Sync On
S
ound-In-Sync On
P
recision Mode Off
P
recision Mode Off
F2
L16
F2
L17
MicroSeconds
20.0 40.0 60.0 80.0 100.0 120.0
Sync = SourceSync = Source
1
00.0
5
0.0
0.0
IRE:FLT
F
rames selected:
F
rames selected:
11 22
525 line NTSC525 line NTSC Synchronous Synchronous
S
low clamp to 0.00 V at 6.72 uS
S
low clamp to 0.00 V at 6.72 uS
No Filtering No Filtering
A
PL = 56.3%
A
PL = 56.3%
Center
L
eft
Center
L
eft
Lock
L
eft
Lock
L
eft
Center
R
ight
Center
R
ight
Lock
R
ight
Lock
R
ight
Reset
C
ursors
Reset
C
ursors
Reset
D
iffs
Reset
D
iffs
Cursors
S
tay On
Cursors
S
tay On
Sinewave at middle of screen is too small or frequency too low for measurement. Sinewave at middle of screen is too small or frequency too low for measurement.
0.0
-0.2
Volts
Sound-In-Sync On Sound-In-Sync On Precision Mode OffPrecision Mode Off
T
ime from L to R: 4.664 MicroSeconds
T
ime from L to R: 4.664 MicroSeconds
Frequency (1/T): 0.214389 MHzFrequency (1/T): 0.214389 MHz
F2
L17
M
icroSeconds
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0
Sync = SourceSync = Source
0.0
-
20.0
-40.0
IRE:FLT
V
ertical delta: -0.243 Volts
V
ertical delta: -0.243 Volts
F
rames selected:
F
rames selected:
11 22
525 line NTSC525 line NTSC Synchronous Synchronous
S
low clamp to 0.00 V at 6.72 uS
S
low clamp to 0.00 V at 6.72 uS
No Filtering No Filtering
APL = 52.7% APL = 52.7%
Field
T
oggle
Field
T
oggle
Find
Colorbars
Find
Colorbars
Vector
Line
Vector
Line
Field 1
Line 17
Field 1
Line 17
Field 1
Line 18
Field 1
Line 18
R-Y
B-Y
75%
100%
I
Q
-I
-Q
M
g
R
Yl
G
Cy
B
Setup 7.5%
APL = 42.4% APL = 42.4%
System LineSystem Line
Angle (deg) 0.0Angle (deg) 0.0
Gain x 1.178Gain x 1.178
1.425 dB1.425 dB
L 20 F2L 20 F2
B
urst from source
B
urst from source
5
25 line NTSC
5
25 line NTSC
R-Y
B-Y
75%
100%
I
Q
-I
-Q
M
g
R
Yl
G
Cy
B
Setup 7.5%
Auto
Scan
Auto
Scan
ExitExitManual
Steps 6
Manual
Steps 6
RefPacket
6.7uSec
RefPacket
6.7uSec
1st Step
10.7uSec
1st Step
10.7uSec
Last Step
25.8uSec
Last Step
25.8uSec
Measure
Cycles 6
Measure
Cycles 6
Measurement Location for the DGDP MeasurementMeasurement Location for the DGDP Measurement
u secu sec
5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.05.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0
Field = 1 Line = 16 FCC Composite
3
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