Checking The Beatnote; Table 24. Test Set Signal Input Limits And Characteristics - Agilent Technologies e1420b User Manual

Table 24 Test set signal Input Limits and Characteristics
Limits
Frequency
Maximum Signal Input Power
At Attenuator Output, Operating Level Range:
•
RF Phase Detectors
•
Microwave Phase Detectors
•
Internal AM Detector
Downconverters:
•
Agilent N5502A/70422A
•
Agilent N5507A/70427A
Characteristics
Input Impedance
AM Noise
Refer to the following system connect diagram examples in
NO T E
Interconnections," for more information about system interconnections.
•
Figure
•
Figure
•
Figure

Checking the beatnote

While the connect diagram is still displayed, Agilent recommends that you use
an oscilloscope (connected to the Monitor port on the test set) or a counter to
check the beatnote being created between the reference source and your
device-under-test. The objective of checking the beatnote is to ensure that the
center frequencies of the two sources are close enough in frequency to create a
beatnote that is within the capture range of the system.
The phase lock loop (PLL) capture range is 5% of the peak tuning range of the
VCO source you are using. (The peak tuning range for your VCO can be
estimated by multiplying the VCO tuning constant by the tune range of VCO.
Agilent E5505A User's Guide
307, "E5505A system connections with standard test set," on page 401
308, "E5505A system connections with test set option 001," on page 402
309, "E5505A system connections with test set option 201," on page 403
Absolute Measurement Examples
•
50 kHz to 1.6 GHz (Std)
•
50 kHz to 26.5 GHz (Option 001)
•
50 kHz to 26.5 GHz (Option 201)
Sum of the reference and signal input power
shall not exceed +23 dBm
0 to +23 dBm (Signal Input)
+15 to +23 dBm (Reference Input)
0 to +5 dBm (Signal Input)
+7 to +10 dBm (Reference Input)
0 to +20 dBm
0 to +30 dBm
+5 to +15 dBm
50 Ω nominal
DC coupled to 50 Ω load
Chapter 18, "System
6
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