R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.3.14 Carrier Frequency and Power Measurements Using Pulsed RF Signals
2-126
5.
Press FREQ, 1, ., 1 and GHz.
A center frequency of 1.1 GHz is set.
6.
Press SPAN, 1, 0 and MHz.
A frequency span of 10 MHz is set.
7.
Press LEVEL, 1, 0 and MHz(-dBm).
The reference level is set to -10 dBm.
8.
Press Ref Offset ON/OFF(ON), 5, 0 and GHz(dB).
The level currently being displayed includes the value of the external attenuator.
9.
Press COUPLE, RBW AUTO/MNL(MNL), 1, 0 and kHz.
A RBW of 10 kHz is set.
NOTE:
Set the RBW to the range shown below so the pulse height becomes large
enough to be used.
1.7
××××
Pulse Repetition Rate
≤≤≤≤
RBW
≤≤≤≤
0.1/ Pulse width
10. Press VBW AUTO/MNL(MNL), 1, 0, 0 and kHz.
A VBW of 100 kHz is set.
NOTE:
Set the VBW to 10 times higher than that of the RBW so the RBW is not
affected.
VBW
≥
10
×
×
×
×
RBW
11. Press A, Trace A Detector and Positive.
Trace detector mode is set to the positive peak detector mode.
12. Press ATT, ATT AUTO/MNL(MNL), 3, 0 and GHz(dB).
The attenuator is set to 30 dB.
NOTE:
Set the attenuator to ’input level + 10 dB’ or more to avoid the saturation at
the input mixer.
13. Press SWP, Sweep Time AUTO/MNL(MNL), 3, ., 1 and MHz(sec).
A sweep time of 3.1 seconds is set.
Measuring carrier frequency
14. Press SRCH.
The normal marker is displayed on the trace peak.
The frequency of the normal marker is the carrier frequency (See Figure 2-142).
