{VSA794}

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VSA794 Features

One button automatic tests of key CATV video measurements

Easy and accurate FCC required tests with minimum training and capital investment

 

Automated measurements of the key CATV baseband measurements including:
 - Differential Gain and Phase
 - In-Channel Frequency Response
 - Chroma to Luma Delay
 - Percent Modulation
 - S/N and Hum
  ....all combined in one live channel!

Complete testing capability without interference to your system operation

 

Direct digital readout of all key parameters without complex calculations or interpretation to insure accurate measurements
Full manual waveform and vector measurement capabilities provide maximum usability in testing and troubleshooting

VSA794 Condensed Specifications

Composite Input - Input Impedance: >15k Ohms, 25 Hz to 5 MHz, power on or off. Feedthrough Terminator: 75 Ohms > 40 dB return loss 25 Hz to 5 MHz, power on or off.
Line Select - Lines Off or line 8 through 21. Fields Odd or Even field selectable.

Digital Waveform Measurements - Display Units: IRE, mV, V. Display Range: 0-280 IRE, 0-999 mV, 1.00-2.00 V. Resolution: 1 IRE, 1 mV, .01V. Accuracy: ± 1%, ± 2 counts at 50 kHz.

Frequency Response - Display Range: 0-20 dB. Resolution: .1 dB. Accuracy: ± .4 dB.

Percent Modulation - Display Range: 50-100%. Resolution: .1%. Accuracy: ± 2 %.

Hum Ð Display Range: 0-15%. Resolution: 0.1%. Accuracy: ± 5 counts or .5%.

Video S/N - Display Range: 30-56 dB, with Ref. 1V input. Resolution: 1 dB. Accuracy:<2 db.

Differential Gain - Display Range: 0-40%. Resolution: 1%. Accuracy: ± 2 %.

Differential Phase - Display Range: ± 15 Degrees. Resolution: .1 Degrees. Accuracy: ± 1.5 Degrees.

Chroma/Luma Delay - Display Range: ± 20-300 nSec. Resolution: 1 nSec. Accuracy: ± 10 nSec.


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