Agilent Technologies 8590 Series Service Manual page 173

7. Enter the Corrected Flatness ERROR from
8. Press
Frequency Range 1429 MHz to 1501 MHz
9. Looking at
The next step disables the protection for the factory correction
CAUTION
constants.
10.Press the following analyzer keys.
11.Press
Chapter 2
28. Correcting for Absolute Amplitude Accuracy for Option 051
for the frequency displayed using the DATA keys. Terminate the
entry with the .
+dBm
After the new data is entered, the analyzer will automatically jump
to the next frequency correction point. Enter the next Corrected
Flatness ERROR from the table.
To confirm the entries, press
interest. Re-check the displayed error against the Corrected
Flatness ERROR from column 3.
, after all corrections are complete.
More EXIT
Table 2-22, Frequency Response Attenuator 10 dB,
calculate the error from the nominal value of −9 dB for each
frequency. For example, if the measuring receiver reading at
1429 MHz is −9.2 dB, then the error is −0.2 dB. Find the average
error by adding the four errors for each frequency and then dividing
the sum by four.
(wait for completion)
PRESET
, −2001,
FREQUENCY
, ,
CAL More 1 of 4 More 2 of 4
Service Cal
Flatness Data
EDIT FLATNESS
⇑
(step up key) until the ERROR readout for 1.380 GHz is
displayed (1.410 GHz for an 8591E spectrum analyzer or an 8591C
cable TV analyzer).
Table 2-26
⇓
(step down key) to the frequency of
Average Error__________________dB
Hz
Making Adjustments
or Table 2-27
173