Chapter 2 — E-Series Tracking Generator 2-3 Measurement Example
Tracking Generator MG PN: 10580-00339 Rev. C 2-3
5. Observe the measurement to confirm that the pass band frequency range covers the
required span.
6. If the spectrum analyzer noise floor is too high for the necessary measurements, then
reduce the input attenuation and RBW to maximize the dynamic range. Figure 2-2
on page 2-3 shows the sample setup with the input attenuation lowered from 30 dB to
10 dB and with the RBW reduced from 3 MHz to 300 kHz.
7. When measuring a filter with a very high insertion loss in the stop band, press the Shift
key, then the Trace (5) key. Press the Trace A Operations submenu key, then the
Average → A submenu key to turn on averaging and clean up the stop band area. An
averaging value of 10 will probably be adequate for most filters.
8. Under the Setting submenu turn Power Statistics On (Figure 2-2) to display the spectrum
analyzer received Maximum, Average, and Minimum power of each frequency range
sweep.
Note
If the noise floor drops below the visible display, then set the Scale dB/division
setting to a value larger than 10. This will increase the displayed amplitude range.
Figure 2-2. Increasing Measurement Dynamic Range, Trace Averaging On, Displaying Power
Statistics
Note
Many of displayed settings on the left side of the screen are used as menu
shortcuts. Select a parameter by touching the appropriate setting on the touch
screen to display the menu and set the parameter for editing.
ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com
To Next Page
Loading...
Need help?
General
