Wavetek 3000 Instruction Manual page 225

Replace the table shown with the following table :
MANUAL CHANGES - MODEL 3000 (Cont'd)
Section 4 .5, OUTPUT LEVEL ACCURACY TESTS :
Change the third paragraph of the METHOD
flatness is measured in 10 MHz steps between
+3, and -7 dBm output levels ."
Section 4 .5 .2, FLATNESS TEST :
Make the following changes in Steps 1, 4, 5,
section :
Step 1 . Delete the line :
"FREQUENCY selector 050 .000 MHz"
Step 7 . Change the first sentence to read :
"Set the OUTPUT step attenuator to 0 dBm ."
section to read "The
10 and 520 MHz at +12,
Step 5 . Change to read :
"Set the OUTPUT VERNIER for a +3 dBm power meter reading ."
Change the last paragraph in the METHOD section as follows :
The third sentence in the paragraph must read "The two 35 dB pads
are measured in combination with other pads ."
and 7 of the PROCEDURE
Step 4 . Replace the paragraph with the following :
Set the Signal Generator Frequency selector to read 10 MHz and step
in 10 MHz steps between 10 and 520 MHz . Observe the change in power
meter readings . The total deviation shall be not greater than 1 .5 dB
overall . Record the maximum change to the nearest .05 dB (1/4
division) on line 9 of the PTR .
OUTPUT STEP
ATTENUATOR POSITION
dBm
+10
I
1 10
I
(ACTIVE
dB
STEP
20
I
dB
ATTENUATOR
1 30
I
dB
PADS
1 35
I
(%)
dB 1 35
I
dB
0
I I I
-
10
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x
I I
-
20
I I x I
-30
I I
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x
-40
I x I
I
x
-50
I I
x
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x
-
60
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x
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x
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x
-
70
I I I
I x
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x
- 80
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x
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x
-
90
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x
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x
-100
I I I
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x
-110
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x
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x
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x
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x
-120
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x
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x
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x
-130
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x
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x
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x