Agilent Technologies 8590 Series Service Manual page 411

3. Check maximum power available from the tracking generator.
Connect the RF OUT 50Ω connector to the INPUT 50Ω connector.
Press the following keys.
PRESET
, 20,
AMPLITUDE
, 5,
LOG dB/DIV
AUX CTRL
TRACK GEN
SRC PWR ON OFF
MORE 1 OF 2
(EXT underlined)
ALC INT EXT
The available power should always be greater than +1 dBm. If the
output is unlevelled only at specific frequencies, a power hole will
usually be visible at those frequencies.
4. Check the LO OUTPUT power level as follows:
a. Set the analyzer to zero span at a 0 Hz center frequency.
b. Zero and calibrate a power-meter/power-sensor combination. Set
the power meter to readout power in dBm. Enter the power
sensor's 4 GHz cal factor into the power meter.
c. Connect the power sensor to the LO OUTPUT connector on the
analyzer rear panel.
d. Record the power meter reading. The power level should be
greater than +12.5 dBm.
e. Increase the analyzer center frequency setting by 100 MHz. The
LO OUTPUT frequency will be 3.9214 GHz greater than the
center frequency setting.
f. Enter the appropriate power sensor cal factor into the power
meter.
g. Repeat step a to
2.9 GHz.
5. If the LO OUTPUT power-level check fails, note the center frequency
setting at which the power level was out of tolerance. If the LO
OUTPUT power level check passes, proceed to
Chapter 10
Tracking Generator 8593E, 8594E, 8595E, 8596E Option 010
+dBm
dB
(ON underlined)
step f until the center frequency setting is
Analyzer Options and Block Diagrams
step 7.
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