B&K Precision 2658A - Manual User Manual

Page 50

* The measured value and the setting parameter are displayed at the lower part of the screen.

• Definition of Reference Carrier for each Mode

1. By (ACP OFFSET) , the

offset frequency of adjacent channel is set.

* The offset is from the center frequency of the reference

carrier.

2. By (ACP WIDTH)

, the

band width of adjacent channel is set.

3. By (REFERENCE CENTER) ,

the center frequency of the reference carrier is set.

* [F4] is only for TOTAL and BAND mode.

4. By (REFERENCE WIDTH)

the band width of reference carrier is set.

* [F5] is only for BAND mode.

[Measured value]

[Setting parameter]

[Measuring mode]

TOTAL (total power method)

This is based on the sum of power in the

displayed spectrum. The center frequency

of the reference carrier is set by [F4].

BAND (in-band method)

This is based on the sum of power in the

specified bandwidth. The center

frequency of the reference carrier is set by

[F4].

PEAK (reference level method)

This is based on the power of peak on the

screen. The center frequency of the

reference carrier is automatically set to the

peak on the screen.

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