Agilent Technologies 8935 series e6380a Manuale Utente

Pagina di 320
Chapter 4
111
Overview of the Test Set’s Built-In Tools
Using the Spectrum Analyzer
Using the Spectrum Analyzer
Automatic Calibration
During operation, the spectrum analyzer pauses for approximately 
2 seconds every 5 minutes to recalibrate itself. This does not affect the 
accuracy of displayed measurements, but does cause a brief 
interruption of the displayed information during the process. 
Setting Resolution Bandwidth and Sweep Rate 
The resolution bandwidth and sweep rate are determined by the span 
setting, and cannot be set independently. 
These settings are listed in the following table. 
Table 4-1 
Relationship between Span, Resolution Bandwidth, and Sweep 
Rate
Span  
Resolution 
BW 
(kHz) 
 Sweep Rate 
<50 kHz
0.3
28.6 kHz/second
<200 kHz
1.0
329.0 kHz/second
<1.5 MHz
3.0
3.0 MHz/second
<3 MHz
30.0
21.4 MHz/second
<18 MHz
30.0
36.3 MHz/second
<200 MHz
300.0
257.0 MHz/second
1 GHz
300.0
1.0 GHz/second