670
JD700B Series User’s Guide
Procedure
To set the center frequency:
1
Press the
FREQ/DIST
hard key.
2
Toggle the
Unit
soft key and select
Freq
.
3
Press the
Center Frequency
soft key.
4
Enter a value by using the numeric keys or the rotary knob.
5
Select the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
6
Optional
. To define the amount of frequency increment for the rotary knob, complete the following
steps:
Press the
Frequency Step
soft key.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
To set the channel number:
1
Press the
FREQ/DIST
hard key.
2
Toggle the
Unit
soft key to
Channel
.
NOTE
Selecting
Channel
sets the standard channel to
Band Global
automatically so that you
can set the
Channel Number
without choosing a standard channel band from the list.
3
Press the
Channel Number
soft key.
4
Enter a value by using the numeric keys or the rotary knob.
5
Press the
Enter
soft key.
The instrument automatically displays the corresponding center frequency value for the selected
channel number.
6
Optional
. To define the amount of channel increment for the rotary knob, complete the following
steps:
Press the
Channel Step
soft key.
Enter a value by using the numeric keys or the rotary knob.
Press the
Enter
soft key.
Setting amplitude
You can set the reference automatically or manually to optimize the display of the trace, as you desire.
Procedure
1
Press the
AMP/SCALE
hard key.
2
Do the following:
To optimize the Y-axis scale automatically, press the
Auto Scale
soft key.
To set the maximum reference value on the Y-axis manually, complete the following steps:
Press the
Reference Level
soft key.
Enter a value by using the numeric keys or the rotary knob with 10 dB increments.
Press the unit soft key or the
ENTER
hard key.
NOTE
In the measurements such as
Control Channel
,
Subframe
, and
Frame
, you can select
the reference option between
Relative
and
Absolute
instead.
3
To set an external offset, complete the following steps:
Toggle the
External Offset
soft key and select
On
.
Enter a value by using the numeric keys.
Press the
dB
soft key to complete the entry.