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Composite second order (cso) – GW Instek GSP-930 User Manual User Manual

Page 157

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ADVANCED OPERATION

155

Composite Second Order (CSO)

Description

Composite Second Order measurement
calculates the difference in amplitude between
the carrier signal and the composite second
order beat.

Parameters

CSO CH SP: The channel space.

Measurement
items

Visual Carrier: frequency, amplitude
Channel Space: frequency
CSO: amplitude difference

Example

1

Δf

Visual carrier marker

Aural, audio

carrier

2 CSO Beat marker

C

S

O

d

B

Channel

spacing

To next main channel

Operation:

1. Press

Meas

> CNR/CSO/CTB[F7]>Setup[F1]>

CSO[F2] and choose CSO.

2. Press CSO[F2] and toggle CSO on.

Any other measurement mode will automatically be
disabled.

3. The display splits into two screens. The top

shows the trace with the visual carrier marker
and the CSO beat marker. The bottom screen
shows the CSO measurements.