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Making Adjustments
28. Correcting for Absolute Amplitude Accuracy for Option 051
3. Press
4. Read the amplitude error from the display and record it in
Table 2-26
Frequency Response Errors: 8593E, 8594E, 8595E, 8596E
Frequency
804 MHz
876 MHz
948 MHz
1.02 GHz
Table 2-27
Frequency Response Errors: 8591C and 8591E
Frequency
781 MHz
818 MHz
855 MHz
892 MHz
5. Subtract the Average Error, calculated in
6. Using
172
⇑
(step up key) until the ERROR readout for 804 MHz is
displayed (781 MHz for an 8591E spectrum analyzer or an 8591C
cable TV analyzer).
2-26
for the 8593E, 8594E, 8595E, and 8596E spectrum analyzers.
Use
Table 2-27
for 8591E spectrum analyzers or 8591C cable TV
analyzers.
Amplitude
ERROR
_________________
_________________
_________________
_________________
Amplitude
ERROR
_________________
_________________
_________________
_________________
Repeat
step 3
to
step 4
or
Table 2-27
until all four points have been recorded.
Amplitude ERROR from
column 3 as the Corrected Flatness ERROR.
Do not subtract more than 0.5 dB from the Amplitude ERROR. If the
Average Error is more than 0.5 dB, it may not be possible to make
corrections during the adjustment.
⇓
(step down key), set the frequency displayed on the analyzer
to 804 MHz (781 MHz for 8591E spectrum analyzers or 8591C cable
TV analyzers).
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
for the next frequency indicated in
step
Table 2-26
or
Table
Table
Corrected
Flatness
ERROR
Corrected
Flatness
ERROR
Table 2-26
1, from each
2-27, then record
Chapter 2
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