Agilent Technologies E8267D PSG - Manual (Page 58)

44 Chapter 2
Basic Operation
Configuring the RF Output
Setting the Low Pass Filter (Options 1EH and 521)
CAUTION Option 1EH can degrade power below 2 GHz. Use Option 1EH when improved harmonics
are desired but a degradation of power below 2 GHz is acceptable. Refer to the Data
Sheet for details.
Options 1EH and 521 improves the harmonic distortion performance for carrier frequencies ranging
from 10 MHz to 2 GHz. Refer to the Data Sheet for specifications on these options.
1. Press Preset .
Default Off
2. Press Frequency > More > More .
3. Press Low Pass Filter below 2 GHz to On.
Setting the RF Output Amplitude
1. Preset the signal generator: Press Preset .
The AMPLITUDE area of the display shows the minimum power level of the signal generator. This
is the normal preset RF output amplitude.
2. Turn on the RF output: Press RF On/Off .

The display annunciator changes to RF ON. At the RF OUTPUT connector, the RF signal is output
at the minimum power level.
3. Change the amplitude to
20 dBm: Press
Amplitude >

20 > dBm .
The new output power displays in the AMPLITUDE area of the display and in the active entry area.
Until you press a different front panel function key, amplitude remains the active function. You
can also change the amplitude using the up and down arrow keys or the knob.
Setting the Amplitude Reference and Amplitude Offset
The following procedure sets the RF output power as an amplitude reference to which all other
amplitude parameters are relative. The amplitude initially shown on the display is 0 dB (the power
output by the hardware minus the reference power). Although the display changes, the output power
does not change. Any subsequent power changes are shown as incremental or decremental to 0 dB.
1. Press Preset .
2. Set the amplitude to
20 dBm: Press
Amplitude > –20 > dBm .
3. Activate the amplitude reference mode and set the current output power (
20 dBm) as the
reference value: Press More (1 of 2) > Ampl Ref Set .
The AMPLITUDE area displays 0.00 dB, which is the power output by the hardware
20 dBm)
minus the reference value (
20 dBm). The REF indicator activates and the
Ampl Ref Off On softkey
toggles On.
4. Turn the RF output on: Press RF On/Off .

The display annunciator changes to RF ON. The power at the RF OUTPUT connector is
20 dBm.
5. Change the amplitude increment value to 10 dB: Press Incr Set > 10 > dB .
6. Use the up arrow key to increase the output power by 10 dB.