Specifications

1. Press [Preset].

2. Press [Frequency] > [10] > {GHz}.

3. Press [Amplitude] > [0] > {dBm}.

4. Press [RF On/Off].

5. Press {Leveling Mode} > {External Detector}. This configuration deactivates the internal ALC

detector and switches the ALC input path to the

front panel ALC INPUT connector. The EXT

indicator is activated in the AMPLITUDE area

of the display.

NOTE For signal generators with Option 1E1, notice that

the ATTN HOLD (attenuator hold) enunciator is

displayed. During external leveling, the signal

generator automatically uncouples the attenuator

from the ALC system for all external leveling points.

While in this mode, RF output amplitude

adjustment is limited to –20 to +25 dBm, the

adjustment range of the ALC circuitry. For more

information, see External Leveling with Option 1E1

Signal Generators on page 6.

6. Observe the coupling factor printed on the

directional coupler at the detector port.

Typically, this value is -10 to -20 dB.

Enter the positive dB value of this coupling factor

into the signal generator.

7. Press {More (1 of 2)} > Leveled output power is now available at

{Ext Detector Coupling Factor} > [16] (or the the output of the directional coupler.

positive representation of the value listed at the

detector port of the directional coupler) > {dB}.

NOTE While operating in external leveling mode, the

signal generator’s displayed RF output amplitude is

affected by the coupling factor value, resulting in a

calculated approximation of the actual

RF output amplitude.

To determine the actual RF output amplitude at the

point of detection, measure the voltage at the

external detector output and refer to Figure 3-2.

Configure the signal generator