How to Measure the Bandwidth of a Transmission Channel

Question

I have to measure the bandwidth of a filter or transmission channel. How can I do this?

Answer

In the Spectrum Analyzer mode, you can use several markers and delta markers and find

the bandwidth manually. However, using the "n dB down" marker function is more convenient:

"n dB down" activates the temporary markers that are n dB below the active reference marker.

They are placed to the left and right of the reference marker.

The value n can be entered in a dialog box.

If a negative value is entered, the markers are placed n dB above the active reference marker.

This is the “n dB up” function that can be used for notch filter measurements.

Thank you.

Your request was successfully sent!

We will get in touch with you soon.

Your Rohde & Schwarz Team

Request Support
Please specify the type of request:
Please tell us which topic.

Please enter your inquiry.
Contact information

Please enter your first name.

Please enter a valid email address.

Please enter your company name.

Please enter your postal code.

Please enter your name.

Please enter your phone number.

Please enter your location.

Please enter your city name.
Product Information


Please enter your serial number.
(e.g. 123456)
Contact me by...*
Please tell us how we may contact you.
Marketing permission
Security Response Code
show captcha

The input was not correct.
*Mandatory Field
International Website