Giga-tronics GT 9000, Руководство по эксплуатации и техническому обслуживанию

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2.2.5 RF Level
To set the RF power output from the signal generator, press [LEVEL]. Use the numeric keys to
key in the desired power level, then press the [dBm] units key. If a negative value is desired,
press the [-] key before the first value key (see Figure 2-6). For example, to set the RF level to
-15 dBm, enter
[LEVEL] [-] [15.5] [dBm]
When you press [LEVEL], the Entry Menu displays
RF LEVEL
with the value and units of the
last level setting, and will display the real-time numbers as they are keyed in. The Power
display shows the last level setting until [dBm] is pressed. After the desired power setting has
been keyed in, press [dBm] to change the output and Power display to the selected level.
Fine adjustments of the power can be made at any time with the digi-dial and up/down keys
(see Section 2.2.2). If it is necessary to change the power resolution of the digi-dial or the
up/down keys, press the Entry [RESOLUTION] key, then use the up/down keys or the numeric
keypad and units keys to select the desired resolution. The Entry Menu will display
POWER
RESOLUTION
while you are adjusting the resolution. After the resolution is set, press [LEVEL]
again to adjust the level in the chosen increments. When you are finished using the digi-dial and
up/down keys, press Entry [ON] again to disable their operation so that erroneous information
will not be entered if they are touched inadvertently.
Figure 2-6. RF Level
Operation
Manual No. 120AM00250, Rev C, September 1998
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