ShibaSoku 201/3 Envelope Delay Measuring Set

The envelope delay of video transmission equipment for color TV broadcasting is regulated in the CCIR report.
This measuring instrument is designed to perform adjustments speedily to such phase equalizer.

Furthermore, the envelope delay and frequency response can be measured across a broad video frequency range
and so the instrument can be used in a variety of applications such as the adjustments of filters.

■ A large picture tube display (7-inch square) is featured and so the envelope delay can easily be read out on the scale.
■ The built-in sweep signal generator (100kHz - 10MHz) enables envelope delays to be measured up to 200kHz ÷ 10MHz,
CW can also be selected for measurements according to the point-to-point method.
■ Dual-trace display is also possible whereby the envelope delay and the frequency-versus-amplitude response
can be displayed simultaneously.
■ The built-in sync and blanking circuit enable the measurement of transmission systems which contain clamping circuits.
(DC measurement)
■ The sweep rate can be varied by means of the sweep speed control on the front panel.
This makes it possible to measure circuits where the phase undergoes rapid change with the minimal error.
■ Fixed frequency markers are also featured. There is also an external marker input terminal and so points
other than those fixed can be measured accurately in combination with a signal generator

TELEVISION SYSTEM
201/3 System-B.L, Color-SECAM