Agilent Technologies HP 8566B Spécifications Page 95

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16. Harmonic and Intermodulation Distortion Test
36. Wait for completion of the sweep, then press MARKER
(PEAK
SEARCH].
Record the MKR A amplitude:
dB.
37. Press
@J
three times to tune to the third order product at 2101.5
MHz. Wait for completion of the sweep, then press MARKER
SPEAK
SEARCH].
Record the MKR A amplitude:
dB.
38. Choose the smallest MKR A amplitude in steps 36 and 37.
Record its absolute value:
dB.
(For example, if one MKR A amplitude is -82
dB
and the other
is -79
dB,
record
+79
dB.)
This value is S, the third order
suppression.
39. Compute the third order intercept
(TOI)
as follows:
TO1 = P + S/2, where P = input signal power, and S = third order suppression from step 38.
TO1
= -25
dBm
+
dBl2
=
dBm
40. The result should be
>
+ 7
dBm.
Refer to Figure 2-30.
TO1 for signals of 2099.5 MHz and 2100.5 MHz
dBm
2-70
Performance Tests
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