Entering Frequency Range; Entering Source Power Level; Scaling The Measurement Trace - HP 8712ET User Manual

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