Tektronix / Vector Scope / 1745A

Waveform Monitor & Vector Scope통합
 NTSC / PAL Waveform / Vector Monitor

Composite or Component Waveform Monitoring 
Composite Vector Display 
Picture Display 
Stereo Audio Display 
Time Code Phasing and Amplitude 
Eight Video Inputs 
 Applications
Analog Baseband Video Monitoring for Broadcast and Post Production Applications 
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CHARACTERISTICS
 
 Waveform Vertical Deflection
Deflection Factor: 1.0 V (0.2V x5 gain, 0.1 v x10 gain) 
Variable Gain Range: 0.2x to 1.4x 
DC Offset Between Channels: <1 IRE (7 mV) 
75 Ohm Loop-through 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% @ 50 kHz, < 3 dB attenuation @ 1 MHz, ≥ 34 dB attenuation @ Fsc
* Chrominance Filter, Bandwidth 1.5 MHz ± 0.3 MHz: Gain within 1% of flat response @ Fsc, attenuation > 25 dB @ 2 x Fsc
* Differentiated Step Filter: >40 dB attenuation @ 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
* Frequency Response: ±3% to 6 MHz when terminated in 75 Ohm
* Differential Gain: ≤ 1%
* Differential Phase: ≤ 1% 
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 
  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% 
External Horizontal 0.5 V/div: ±2% 
RGB/YRGB: Staircase input amplitude 12 V 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 
Voltage Mode Accuracy:
* Amplitude: ±0.5 IRE (0.5%)
* Phase 
  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

OPTION