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R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.3.6 Measuring Adjacent Channel Leakage Power (ACP)
2-89
9.
Press ATT, ATT AUTO/MNL(MNL), 3, 0 and GHz(dB).
The attenuator is set to 30 dB.
10. Press LEVEL, 0 and GHz(+dBm).
The reference level of 0 dBm is set.
11. Press A, Trace A Detector and Positive.
This sets the trace detector to the Positive mode.
12. Press LEVEL and adjust the trace using the data knob so that the trace peak can
be within 1 graduation in relation to the reference level.
NOTE:
Measurement errors increase when the signal level is much lower than the
reference level.
13. Press SWP, Sweep Time AUTO/MNL(MNL), 2, 1 and MHz(sec).
A sweep time of 21 seconds is set.
NOTE:
The sweep time must meet the following.
Sweep time
≥≥≥≥
Number of trace points
××××
Period of the burst signal
Figure 2-96 PDC trace
Channel spacing and specified bandwidth
Channel spacing and channel bandwidth are specified in PDC mode.
14. Press POWER, ACP and CS/BS Setup.
The dialog box for setting the channel spacing and specified bandwidth is dis-
played.