Tel: 886.909 602 109 Email: [email protected]
33
3) Stop Frequency
After pressing “Stop Freq” soft-key, user can change the stop frequency. There are three methods to change the stop
frequency value: Directly input the number, press the “Up/Down” step key tochange freq and rotate the knob.
4) Span
Span equals the stop frequency minus the start frequency. The span setting determines the horizontal-axis scale of the
analyzer display.
The span range of the instrument is from 0Hz to 3000MHz. The larger span is set, the more signal can be viewed, the
lower precision the measurement will get. On the contrary, the narrower span is set, the fewer signals can be viewed, the
higher precision the measurement will get. So it is important to choose the appropriate span.
There are three methods to change the span: first is manually input; second is to press the Up/Down key which change
step is 1,2,5, and the change sequence is 200Hz, 500Hz, 1kHz, 2kHz…. 3000MHz; last is to rotate the knob. The change
step is 1/100 of the span.
NOTE:
1. When the
RBW
is set to “Manu”, too large span will cause the imprecision of the measurement. In such cases the
system will give the prompt “UNCAL”. See also 3.2.1 ---Band width.
2. Press “Up/Down” key cannot change the span to 0Hz.
3. When press “Up/Down” key to change span, if the current span is not one of the change sequence, it will be treated
as the nearest lower one in the sequence. For example, 199Hz will be treated as 0Hz, if press “Up” key now, the span
will become to 200Hz.
Fig.3.6 and Fig.3.7 show the comparison chart of narrow span and wide span.
Fig.3.6 Narrow span frequency
Содержание S5800E Series
Страница 1: ...S5800E Series Field Comm Analyzer User Manual Saluki Technology Inc...
Страница 14: ...Tel 886 909 602 109 Email sales salukitec com www salukitec com 14 Fig 1 2 Soft carrying case...
Страница 154: ...Tel 886 909 602 109 Email sales salukitec com www salukitec com 154 Fig 8 14 Limit file management dialog box...
