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JD700B Series User’s Guide
External offset
You can turn on the
External Offset
and manually set the external offset value.
Procedure
To set the external offset:
1
Press the
AMP/SCALE
hard key.
2
Toggle the
External Offset
soft key and select
On
.
3
Enter a value by using the numeric keys.
4
Press the
dB
soft key to complete the entry.
To turn the external offset off:
1
Press the
AMP/SCALE
hard key.
2
Toggle the
External Offset
soft key and select
Off
.
Scale per division
You can use the
Scale/Div
feature available for the spectrum measurement screen. It represents the value
of one division on the horizontal scale. The default setting is 10 dB per division and the maximum value can
be set up to 20 dB.
Procedure
To set the scale per division:
1
Press the
AMP/SCALE
hard key.
2
Select
More (1/2) > Scale/Div
.
3
Enter a value between 1 and 20 by using the numeric keys.
4
Press the
dB
soft key to complete the entry.
Setting bandwidth
You can set the Resolution Bandwidth (RBW) and Video Bandwidth (VBW) manually or automatically.
Selecting
Auto
changes the value to correspond to your frequency span setting for
RBW and VBW.
Procedure
To automatically set the RBW and VBW:
1
Press the
BW/AVG
hard key.
2
Toggle the
RBW
soft key and select
Auto
.
3
Toggle the
VBW
soft key and select
Auto
.
The RBW or VBW value on the screen changes accordingly based on the span.
To manually set the RBW or VBW:
1
Press the
BW/AVG
hard key.
2
Press the
RBW
soft key.
3
Enter a value in 1-3 sequence by using the numeric keys.
4
Select the unit from the choices:
MHz
,
kHz
, and
Hz
.
The RBW setting automatically changes to
Manual
.
5
Press the
VBW
soft key.
6
Enter a value by using the numeric keys.
7
Select the unit from the choices:
MHz
,
kHz
, and
Hz
.
The VBW setting automatically changes to
Manual
.