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The

Sweep

(horizontal) calibration coefficient is then the

period of the reference signal divided by the product of

the number of divisions used in step 1 for setup of the

reference

and the setting of the

SWEEP

TIME/DIV

control.

Using

the formula:

Sweep

coefficient

Period

of the reference signal (sec)

horizontal width (div) x

SWEEP

TIME/DIV

setting

Remove the reference signal and input the unknown

sig-

nal,

adjusting the

SWEEP

TIME/DIV

control for

easy

ob-

servation.

Measure

the width of one

cycle

in divisions and use the

following relationship to calculate the actual period.

[EXAMPLE]

SWEEP

TIME/DIV

is 0.1 ms and apply 1.75 kHz reference

signal.

Adjust the

VARIABLE

so that the distance of one cy-

cle

is 5 divisions.

Substituting the given

value:

• * » «• -

1.75 (kHz)-i

Horizontal coefficient =

(div) x 0.1 (ms/div)

1.143

Then,

SWEEP

TIME/DIV

is 0.2 ms/div and horizontal am-

plitude is 7 divisions. (See Fig. 43)

Substituting the given

value:

Pulse

width = 7 (div) x 1.143 x 0.2 (ms/div) = 1.6 ms

Using

the formula:

Period

of unknown signal = Width of 1

cycle

(div) x sweep

coefficient x

SWEEP

TIME/DIV

setting

Fig.

13.

PULSE

JITTER

MEASUREMENT

Apply the signal to the

INPUT

jack and set the vertical

MODE

to the channel to be

used.

Use

the

VOLTS/DIV

to adjust for an

easy

to observe

waveform

display.

Special

care

should be taken to ad-

just

the trigger group of controls for a stable display.

Set

the

SWEEP

VARIABLE

to CAL position.

Set the

HORIZ

MODE switch to ALT, and depress the

HOLD

OFF control.

Adjust

the

DELAY

TIME

POSITION

for intensified display

of the waveform to be measured.

Using the B

SWEEP

TIME/DIV

adjust the display for in-

tensificaion

of the entire

jitter

area

of the waveform.

Set the

HORIZ

MODE to B.

Measure

the width of the

jitter

area.

The

jitter

time is this width in division multiplied by the

setting of the B

SWEEP

TIME/DIV

control.

Using

the formula:

Pulse

jitter

= Jitter width (div) x B

SWEEP

TIME/DIV

setting

[EXAMPLE]

The

example shows a

case

in which the

jitter

width was

measured

at 1.6 divisions wide with the B

SWEEP

TIME/DIV

set

at 0.2 fis. (See Fig. 44)

Substituting the given

value:

Pulse

jitter

= 1.6 (div) x 0.2

(/is)

= 0.32 /is

Pulse

jitter

Fig.

Adjusted

reference

signal-

Reference

signal

Fig.

Unknown

signal

Brand	Kenwood
Model	CS-5130
Category	Test Equipment
Language	English

Kenwood CS-5130 User Manual

Table of Contents

Questions and Answers:

Kenwood CS-5130 Specifications

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