6
SPECIFICATIONS
PATTERNS
NTSC Color Bars:
White (75% or I00%. switch selectable), yellow, cyan,
green, magenta, red, blue, black (7.5% set-up). Chroma is
switch selectable; COLOR OFF obtains stair case from
color bars (stair case white level is switch selectable at 75%
or 100%). Interlaced scan.
Chroma Accuracy
:
±5° and ±5 EEE units.
Raster:
Black.
Convergence:
Center dot, 7 x 11 dots, center cross,7 x 11 crosshatch.
Selectable interlaced or progressive scan.
RF OUTPUT
Channels:
CH3, CH4, IF.
Frequency:
61.25, 67.25, 45.75MHz ±0.008MHz.
Level:
10mV rms minimum into 75 ohms.
Impedance:
75 ohms.
Stability:
50 ppm.
VIDEO OUTPUT
Polarity
:
Negative and positive sync available.
Amplitude:
Variable 0 to ±1V p-p into 75 ohms. Calibrated 1V p-p
available with negative sync.
Impedance:
75 ohms.
RGB OUTPUTS
BNC and D-Type Sub-Miniature Connectors.
Patterns:
Convergence and color bars.
Levels:
TTL level and low level, (0.8±0.2V), switch
selectable.
Impedance:
75 ohms.
Summary of Contents for 1249B
Page 1: ...INSTRUCTION MANUAL Model 1249B NTSC GENERATOR ...
Page 16: ...16 THE NTSC COLOR VIDEO SIGNAL CONT Fig 3 Elements of Color Television Signal ...
Page 20: ...20 CONTROLS AND INDICATORS CONT Fig 4 Controls and Indicators ...
Page 35: ...35 MAINTENANCE CONT R7 Fig 8 Adjustment and Test Point Locations ...
