Specifications
5–4 1780R-Series Operator’s Manual
Table 5–2: Waveform Monitor Vertical System (Cont.)
Characteristics Supplemental
Information
Performance
Requirements
Cal Amplitude
Accuracy 1.00 V ±0.2%. NTSC 0.714 V ±0.5%.
Resolution 1 mV at 1.00 V. PAL 0.700 V ±0.5%.
DC Restorer
Clamp Point Back porch or Sync Tip.
Mains Hum Atten.
A
tt
e
nuation 10
%
.
Slow Clamp ≤0.9 dB.
Fast Clamp ≥26 dB.
Shift caused by pres-
ence or absence of
burst
NTSC = 1 IRE.
PAL = ≤7 mV.
Lum/Chroma Gain Ratio
NTSC
(50 kHz – 3.58 MHz) 1:1 ±1%.
Ad
ju
s
t to
m
ini
m
iz
e
lu
m
i
-
nance-to-chrominance gain
err r e
PAL
(50 kHz – 4.43 MHz) 1:1 ±1%.
err
o
r
at 1 V Full Scal
e
,
typically ≤0.5%.
Noise Measurements
Accuracy To 56 dB within 1 dB.
To 60 dB within 2 dB. Relative to 700 mVRMS.
VAR GAIN adjusted to
maximum.
Offset Accuracy To 56 dB within 0.5 dB.
To 60 dB within 1 dB.
Specifications
5–4 1780R-Series Operator’s Manual
Table 5–2: Waveform Monitor Vertical System (Cont.)
Characteristics Supplemental
Information
Performance
Requirements
Cal Amplitude
Accuracy 1.00 V ±0.2%. NTSC 0.714 V ±0.5%.
Resolution 1 mV at 1.00 V. PAL 0.700 V ±0.5%.
DC Restorer
Clamp Point Back porch or Sync Tip.
Mains Hum Atten.
A
tt
e
nuation 10
%
.
Slow Clamp ≤0.9 dB.
Fast Clamp ≥26 dB.
Shift caused by pres-
ence or absence of
burst
NTSC = 1 IRE.
PAL = ≤7 mV.
Lum/Chroma Gain Ratio
NTSC
(50 kHz – 3.58 MHz) 1:1 ±1%.
Ad
ju
s
t to
m
ini
m
iz
e
lu
m
i
-
nance-to-chrominance gain
err r e
PAL
(50 kHz – 4.43 MHz) 1:1 ±1%.
err
o
r
at 1 V Full Scal
e
,
typically ≤0.5%.
Noise Measurements
Accuracy To 56 dB within 1 dB.
To 60 dB within 2 dB. Relative to 700 mVRMS.
VAR GAIN adjusted to
maximum.
Offset Accuracy To 56 dB within 0.5 dB.
To 60 dB within 1 dB.