Frequency span

1. What is a frequency span?
2. What is span in signal?
3. What is span in spectrum Analyser?
4. What is resolution bandwidth?

What is a frequency span?

frequency span means the maximum range of the frequency segment displayed.”

What is span in signal?

Span is the difference between the lowest and the actual reading or output signal of a measurement device. For example a 1.6 bar pressure transmitter maybe re-scaled to read 4mA at 0.8 bar and 20 mA at 1.2 bar. In this example the pressure transmitter would be described as having a span ranging from 0 to 0.4 bar.

What is span in spectrum Analyser?

Span specifies the range between the start and stop frequencies. These two parameters allow for adjustment of the display within the frequency range of the instrument to enhance visibility of the spectrum measured.

What is resolution bandwidth?

The resolution bandwidth is the width of the bandpass filter that is swept across the frequency range. Decreasing the resolution bandwidth increases the ability of the spectrum analyzer to resolve signals at discrete frequencies and causes the sweep rate to take a longer period of time.