120 Chapter3
Manual Adjustment Procedures
2. IF Amplitude Adjustments
A5 Adjustment Verification
21.On the spectrum analyzer, disconnect W29 from A5J3. Connect the
test cable between A5J3 and the 50Ω output of the 3335A.
22.Set the spectrum analyzer reference level to −10 dBm.
23.Set the 3335A
AMPLITUDE to −5 dBm.
24.Press
MKR and MARKER NORMAL on the spectrum analyzer.
25.The MARKER amplitude should read −10 dBm ±0.13 dB. If the
reading is outside of this range, repeat steps 4 through 21.
26.On the spectrum analyzer, reconnect W29 to A5J3. Press
PRESET
and set the controls as follows:
Center frequency ..................................................... 300MHz
Span .................................................................................0Hz
Reference level ......................................................... −10dBm
Resolution bandwidth .............................................. 300kHz
27.Connect a BNC cable between the 8563E CAL OUTPUT and
INPUT 50Ω .
28.On the spectrum analyzer, press
MKR CAL and REF LVL ADJ.
29.Use the knob or step keys to adjust the REF LEVEL CAL setting
until the MKR reads −10.00 dBm ±0.1 dB.
30.On the spectrum analyzer, press
STORE REF LVL.
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