Tektronix 1760 NTSC Waveform/Vector Monitor

Tektronix 1760 NTSC Waveform/Vector Monitor
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Tektronix Test Equipment 1760
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The Tektronix 1760 NTSC Waveform/Vector Monitor is used for Analog Baseband Video Monitoring for Broadcast and Post Production Applications. The 1760 series is an analog video waveform/vector monitor with progressive features in support of today's demanding television environment. The Tektronix 1760 provides improved video performance and ease of operation and incorporates application specific features.
 
Tektronix Test Equipment 1760 Features
  • Composite or Component Waveform Monitoring
  • Composite Vector Display
  • Picture Display
  • Stereo Audio Display
  • Time Code Phasing and Amplitude
  • SCH and Color Framing Display
  • Component Vector, Lightning, Diamond and Bow-tie
Tektronix Test Equipment 1760 Specs
Waveform Vertical Deflection

Deflection Factor - 1.0 V (0.2 V x5 gain, 0.1 V x10 gain) input displayed within 1% of 140 IRE (1.00 V) graticule.
Overscan - <7 mV variation in base line of chroma when positioned anywhere between sync tip and 100% white.
Variable Gain Range - 0.2x to 1.4x.
DC Offset Between Channels - <1 IRE (7 mV).
Maximum Operating Signal Input Voltage - -1.8 V to +2.2 V, DC + peak AC.
Absolute Maximum Input Voltage - -8.5 V to +8.5 V, DC + peak AC.
Signal Input Impedance - ≥20 kilΩ.
75 Ω Loopthrough Return Loss - ≥40 dB to 6 MHz.
Frequency Response -
Flat: Within ± 2% to 10 MHz (x1 Gain).
Luminance filter gain of flat response: Within 1% at 50 kHz, <3 dB attenuation at 1 MHz, ≥34 dB attenuation at Fsc.
Chrominance filter, Bandwidth 1.5 MHz ± 0.3 MHz: Gain within 1% of flat response at Fsc, attenuation >25 dB at 2 x Fsc.
Differentiated step filter: >40 dB attenuation at Fsc.
Transient Response - Preshoot, overshoot, ringing, field rate tilt, line rate tilt, differential gain: 1% or better.Pulse-to-bar Ratio: 0.99:1 to 1.01:1.
Pix Out -
Gain unity: ±3%.
Frequency response: ±3% to 6 MHz when terminated in 75 Ω.
Differential gain: ≤1%.
Differential phase: ≤1°.
Return Loss - >30 dB to 6 MHz.
DC Restorer - Slow ≤10%, fast ≥95% attenuation at 50 Hz and 60 Hz.
Offset error: <1 IRE (7 mV).
Fast settling time: ≤6 video lines.
Blanking shift with 10% to 90% APL change: ≤1 IRE (7 mV).
Blanking shift with presence or absence of burst: ≤1 IRE (7 mV).
 

Waveform Horizontal Deflection

Sweep - Synchronization triggered by Horiz and Vert sync pulses. Freeruns without input.
Timing Accuracy 1 Line, 5 μs/div - ±1%.
2 Line, 10 μs/div - ±1%.
Linearity 1 or 2 Line - ±1%.
Magnified Sweep Accuracy - 1 line x25.
0.2 μS/div - ±1%; 2 line x10.
1.0 μS/div - ±1%.
Magnified Sweep Linearity, 1 or 2 Line Magnified - ±1%. Horizontal position range, any portion of the synchronized sweep can be positioned on screen in any sweep mode.
External Horizontal 0.5 V/div - ±2%.
RGB/YRGB - Staircase input amplitude 12 Vp-p maximum, DC + peak AC not to exceed -12 V or +12 V, 10 V = 9 div ± 1 div display. Field or line rate front panel selectable.
 

Cursor Signals

Waveform Mode Accuracy -
Voltage: ±0.5%.
Timing: ±0.5% for line rate sweeps.
Vector Mode Accuracy -
Amplitude: ±0.5 IRE (0.5%).
Phase: ±0.5°.
 

Calibrator Signals

Waveform Squarewave -
Amplitude: 1.0 V ±0.5%.
Frequency: 100 kHz ±0.1%.
Waveform Sinewave -
Amplitude: 1.0 V ±0.5%.
Frequency: Nominal subcarrier for standard in use.
 

Vector Mode

Input Requirements - 1 Vp-p ±6 dB composite video signal or black burst.
Chrominance Bandwidth - 1 MHz ±200 kHz.
Display - Phase accuracy within 1.25°. Gain accuracy within 2.5%. Quadrature phasing within 0.5°.
Subcarrier Regenerator -
Pull-in range: NTSC: ±50 Hz. PAL: ±10 Hz.
Pull-in time: ≤2 S.
Phase shift with ±50 Hz NTSC or ±10 Hz PAL Fsc change: ≤2°.
Phase shift with ±6 dB burst amplitude change: ≤2°.
Phase shift with video input change: ≤1°.
Phase shift with variable gain +3 dB to -6 dB: ≤0.5°.
Burst jitter: ≤0.5° RMS.
Clamp stability: ≤1/64 inch (0.4mm).
Phase control range: 360° continuous rotation.
Differential gain: ≤1%.
Differential phase: ≤1°.
 

Component Vector Mode

Vertical Bandwidth - -3 dB at ≥1.0 MHz.
Horizontal-to-vertical Bandwidth Matching - No eye opening at 500 kHz or 2 MHz.
Display-to-graticule Registration - ≤0.25 box.
 

Component Lightning Mode

Y - Displayed vertically.
P'b - Displayed horizontally on top half of display.
P'r - Displayed horizontally on bottom half of display.
 

Component Diamond Mode

B+G - Displayed vertically vs. B-G horizontally on top half of display.
-(R+G) - Displayed vertically vs. R-G horizontally on bottom half of display.
 

Component Bow-tie Mode

Common Mode Rejection Ratio - ≥34 dB at 3 MHz.
Y - P'b (CH1 - CH2) - Displayed on left half of display.
Y - P'r (CH1 - CH3) - Displayed on right half of display.
 

Component Transcoded GBR Outputs

Input Format - GBR, SMPTE, MII or Betacam, menu selected.
GBR Output Impedance - Nominally 75 Ω.
DC Level - Back porch clamped to 0 V.
Gain Accuracy - Unity ±3%.
 

Audio Mode

Full Scale - 0, 4, 8 and 12 dBm, menu selectable.
Full Scale Accuracy - ±0.5 dB at 1 kHz.
Maximum Input Voltage - ±8 Vp-p.
Bandwidth - -3 dB, 200 kHz.
X&Y Input Phase Matching - <1 degree at 20 kHz.
Input Impedance - 20 kilΩ nominal
 

Time Code Mode

Input - Longitudinal timecode, differential.
Full Scale - 0, 4, 8, and 12 dBm, menu selectable.
Maximum Input Voltage - ±8 Vp-p.
Input Impedance - >20 kilΩ.
 

CRT Display

CRT Viewing Area - 80 mm x 100 mm.
Accelerating Potential - Nominally 13.75 kV.
Trace Rotation Range - >1° from horizontal.
Graticule - Internal with variable illumination.
 

Power Source

Mains Voltage Range - 90 to 250 VAC.
Mains Frequency Range - 50 or 60 Hz.
Power Consumption - 110 VA maximum.