PicoScope 7 Software
Available on Windows, Mac and Linux
Resolution bandwith spectrum
Resolution bandwith spectrum
Ordinary spectrum analyzers specify their resolution bandwith (RBH).
Fx. 9 Khz, 120 Khz, and 1Mhz (hameg HM5530)
How can i see/select filter bandwith on my Picoscope. How does it relate to pico settings?
Another question that might relate. If i setup a sweep generator to sweep from, say 10Khz to 20Khz and look at the result in spectrum mode, the amplitude depends on sweep time. Slow sweep > high amplitude, fast sweep > low ampluitude.
Lennert
Fx. 9 Khz, 120 Khz, and 1Mhz (hameg HM5530)
How can i see/select filter bandwith on my Picoscope. How does it relate to pico settings?
Another question that might relate. If i setup a sweep generator to sweep from, say 10Khz to 20Khz and look at the result in spectrum mode, the amplitude depends on sweep time. Slow sweep > high amplitude, fast sweep > low ampluitude.
Lennert
PicoScope 3424 owner.
Re: Resolution bandwith spectrum
Hi apart from the 6000 series there is no filtering available in specturm mode. The 6000 series has a 20MHz bandwidth limiter in hardware. Our devices are not meant to replace spectrum analyser rather give you a spectrum view.
In terms of the amplitude changing this is because we use FFT to do the spectrum view. With the FFT it does calculations for a duration of time and since you are sweeping too quickly this will result in an amplitude drop. A dedicated spectrum analyser works on a different principle.
Kind regards
In terms of the amplitude changing this is because we use FFT to do the spectrum view. With the FFT it does calculations for a duration of time and since you are sweeping too quickly this will result in an amplitude drop. A dedicated spectrum analyser works on a different principle.
Kind regards
Ziko
Technical Specialist
Technical Specialist