In the case of Rohde & Schwarz, I have a power-oriented frequency display option which allows me to do spectral plots of the residual noise that I'm looking at and have that on a logarithmic frequency axis since I'm not using this in conventional communication applications. I'm looking for broadband noise and things that will stick up out of the spectrum. To be able to have both the time domain and frequency domain, where the frequency domain is a very broad spectral plot, it is extremely valuable. There are things which happen in the frequency domain, or you can see in the frequency domain, that you'd never see from a normal oscilloscope plot. You can try and get correlation between an oscilloscope and a spectrum analyzer as a separate instrument, but it is difficult. Only Rohde & Schwarz, at the time I was selecting this, had the logarithmic frequency axis to allow that plot.

• The instrument has a wide bandwidth. You can sweep across a wide range of frequencies. 
• The resolution is good.
• The accuracy is pretty good.

The most valuable features are the accuracy and repeatability.

The most valuable features are its wide bandwidth and 8 ports. These are very important for us to do the crosstalk evaluation, and they came in at very good price.

It is easy to use.

The noise sensitivity: It has a low noise floor.

For real-time oscilloscopes, Rohde & Schwarz has a pretty robust solution. 

• It's compact. 
• It has low channel noise. 
• I appreciate their customer support.
  
• It specifically targets voluntary applications, which is what I'm doing. E.g., I have to do a lot of wattage noise measurements for supply and distress.

So, it is a good match for the sort of things that I need to do. 

It was a spectrum analyzer of Rohde & Schwarz so the characterization of RF channels was helpful and it enabled me to see the measurements that I wanted to see.

The user interface was very simple to operate and there were a lot of tutorials.

The product is quite reliable and straightforward to use. Typically, there are no households that we have to set up.

• Accuracy
• Console/GUI
• Zoomable things
• Remote access

Its very low noise floor.

Most of the features offered are free, like serial data analyzers or jitter measurements.

• User interface
• Accuracy
• Performance
• Reliability