Magni AVM-510A Series, Operator'S Manual

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Measurement Screens (Parameters and Limits) (AVM-510A)
10-5
Definitions of Automeasurement Parameters
Measured Parameter Definition
0.5 MHz ref Peak-to-peak amplitude of the 0.5 MHz packet, in IRE or mV.
1.25 through 5.8 MHz Differences between the peak-to-peak amplitude of the frequency packet
and the 0.5 MHz packet, in percent.
APL Average of active video, aquired in blocks of 10 lines sequenced through
the field, in percent.
Bar ampl Level of the white bar in a multi-burst or non-linear signal, in IRE or mV.
Blue ampl Peak-to-peak amplitude of the blue bar, in IRE or mV.
Burst ampl Phase angle of the blue bar relative to zero degrees, in degrees.
Burst ref phase Burst phase of an external reference-to-burst phase of the input signal, in
degrees.
Chr/lum dly Difference in timing between the luma and chroma parts of the
modulated pulse, in ns.
Chr/lum gain Difference in amplitude between the luma and chroma parts of the
modulated pulse, in percent.
Chroma ref Peak-to-peak amplitude of the chroma signal at the blanking level just
prior to the five-step signal, in IRE or mV.
Color frame Comparasion of the SC/H of line 51 of the selected signal to the SC/H of
the external reference on line 201, extrapolated back to the selected line,
in OK or ERR.
Diff gain Each box represents on of the five steps in the signal. Each box shows
the phase difference between the chroma reference and that step. Any
step exceeding 2% shows a + or – in the box. Any step exceeding the
limit value turns red. The readout value is the peak-to-peak error (turns
red if the limit is exceeded).
Diff phase Each box represents on of the five steps in the signal. Each box shows
the phase difference between the chroma reference and that step. Any
step exceeding 2 degrees shows a + or – in the box. Any step exceeding
the limit value turns red. The readout value is the peak-to-peak error
(turns red if the limit is exceeded).
Green ampl Peak-to-peak amplitude of the green bar, in IRE or mV.
Green phase Phase angle of the green bar relative to zero degrees, in degrees.
H blanking The distance (in time) between the last video found at the H BLANKING
LEVEL on any active line to the first video found at this level on any
active line.
H ref timing The time between the sync edge of the selected signal and the external
reference sync edge, in
µ
s.
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