WISCO International (Leader 5872A)

Combining the standard features of a waveform monitor and vectorscope in a single half-rack package. Model 5872A adds a number of powerful measuring advantages. Among these are the ability to overlay waveform and vector displays from two input signals for precise level, timing and phase matching. A x5 vertical gain multiplier, 200 ns/major division fastest time base and wide-range centering controls permit close inspection of all parts of the waveform for high resolution adjustments. The use of the decoded R-Y signal facilitates easy high-resolution measurements of differential phase and gain. Chroma and IRE filters may be inserted on a full-time or line-shared basis.
LINE SELECT
Full raster line select is offered with lines chosen from Fields 1/3, 2/4 or ALL. Field and line numbers appear on screen and a strobe is added to PIX MON OUT signals to highlight the selected line(s). Full waveform and vector manipulation is available in the line-select mode. Memory storage of up to 9 resettable field/line numbers provides instant recall for routine tests. Provision is made for remote control including recall of line presets.
UNIVERSAL POWER
A switching mode power supply that accepts 90-250 V ac, 48-440 Hz to operate in any locality where ac power is available. In addition, dc power is standard and vehicle or battery power at 11-20 V dc is accepted. A battery mounting bracket, the LC-2222, is available for battery operation from a BP-90 type battery.

Simultaneous/Overlaid Displays

Full Raster Line Select

Line Select Presets

Easy DG/DP Measurements

Remote control

Universal Power Supply (90-250 V ac, 48-440 Hz)

DC Operation Standard (11-20 Vdc)

CRT
Accelerating Potential - 16.5 kV/2 kV
Area - 8 x 10 cm
Graticule - Internal with scale illumination

WAVEFORM MONITOR SECTION VERTICAL SECTION
Deflection Accuracy
1 V Full Scale: - 140 IRE � 1% with 1 V input
MAG x 5: -140 IRE � 3% with 0.2 V input
Variable Range - 1 V Full Scale:0.7 V to 2 V
for 140 IRE display
MAG x 5: - 0.14 V to 0.4 V for 140 IRE display
Maximum Input Voltage
� 2V dc + ac peak
Frequency Response
Flat - 25Hz to 6MHz � 2%
6MHz to 8MHz + 2% to –5% of response
at 50 kHz
IRE
Conforms to IEEE Standard 205,1972
Attenuation less than 3 dB at 1 MHz and
more than 40 dB at 4.43 MHz
Chroma
Response at 3.58 MHz bandpass filter
� 2%/flat
DC Restoration
Clamp time: back porch
Input Impedance - 15 k� or higher

VIDEO OUTPUT
Amplitude - 1 V � 5% at 140 IRE deflection
Frequency Response - 25 Hz - 6 MHz � 5%

HORIZONTAL SECTION

Sweep - 1H, 2H, 1V, 2V
Magnifier - Approximately 20 times 1 V and 2V
Sweep Time Accuracy - 1 �s/div: � 3%
0.2 �s/div: � 3%
Linearity - � 3% or less

CALIBRATOR
Amplitude: 1 V � 1%
Frequency: 100 kHz � 0.1 kHz

VECTORSCOPE SECTION CHROMINANCE
Bandwidth - 3.579545 MHz � 500 kHz
Subcarrier Capture Range
3.579545 MHz � 50 Hz
Accuracy - Phase: � 2�
Amplitude: � 3%
Differential Gain - �1%
Differential Phase - �1�

EXTERNAL SYNC
Sync Amplitude
Sync and burst of composite video or black burst: 286 mV � 6 dB
Input Impedance - 15 k� or higher

LINE SELECTION
Field 1 or 3: 1-263 lines
Field 2 or 4: 1-262 lines
Field Selection - FD 1, 3, FD 2, 4 and All
Preset Memory storage/recall of nine individual line numbers

POWER REQUIREMENTS
AC - 90 V - 250 V, 48 - 440 Hz, 40 W
DC - 11 V - 20 V

PHYSICAL
Size (W x H x D) 8 1 /2 x 5 1 /4 x 16 3 /4 in.
215 x 132 x 423 mm
Weight
15.6 lbs., 7.1 kg

SUPPLIED ACCESSORIES
2 Rackmount Screws (8-30 UNC)
Protective Metal Cabinet with Handle & Feet
1.25A Fuse
5A Time Lag DC Fuse
25 Pin Connector
9 Pin Connector
Cannon Connector
5 Spare Illuminated Lamps
AC Line Cord

AVAILABLE OPTIONS
Rackmount Adapter (LR-2400VI)
Protective Front Cover (LC-2077)
Viewing Hood (LH-2015)
Battery Bracket (LC-2222)
White Phosphor CRT (-305)

SCH SECTION (5870 only)
Absolute Accuracy - � 5� at 25�C
Relative Accuracy - � 2� at 25�C
Display Range External Reference - 360�
Internal Reference - � 80�
Input Amplitude
Sync and burst of composite video or black burst: 286 mV � 3 dB

RGB/YRGB
Internally selectable
Staircase Input - 10 V � 15% for 9 div display