HP HP 8712ET, User Manual, Page: 40 / 480

2-6 ET User’s Guide
Getting Started
Entering Measurement Parameters
Entering
Frequency Range 1. Press the key to access the frequency softkey menu.
2. To change the low end of the frequency range to 10 MHz, press
.
3. To change the high end of the frequency range to 900 MHz, press
.
4. You can also set the frequency range by using the and
softkeys. For instance, if you set the center frequency to
160 MHz and the span to 300 MHz, the resulting frequency range
would be 10 to 310 MHz.
NOTE
When entering frequencies, be sure to terminate your numeric entry
with the appropriate softkey to obtain the correct units. If you use the
key to terminate a frequency entry, the units default to Hz.
The default displayed frequency resolution is kHz. You can change the
resolution by pressing
, and then
selecting a new resolution.
Entering Source
Power Level
1. Press the key to access the power level softkey menu.
2. To change the power level to 3 dBm, press and or
.
3. To change the power level to
−
1.6 dBm, press
or .
4. To change the power level that will always be restored when you
preset the analyzer, press and
or . This entry does not affect the current power level.
Scaling the
Measurement
Trace 1. Press the key to access the scale menu.
2. To view the complete measurement trace on the display, press
.
3. To change the scale per division to 5 dB/division, press
.
4. To move the reference position (indicated by the symbol on the left
side of the display) to the first division down from the top of the
display, press
. Figure 2-3 shows
how each reference position is identified.
5. To change the reference level to 0 dB, press
.
FREQ
Start
10
MHz
Stop
900
MHz
Center
Span
ENTER
FREQ
Disp Freq Resolution
POWER
Level
3
dBm
ENTER
Level
−
1.6
dBm
ENTER
Pwr Level at Preset
2.5
dBm
ENTER
SCALE
Autoscale
Scale/Div
5
Enter
Reference Position
9
Enter
Reference Level
0
Enter