LimeSDR Spurs and Interferences

Hello,

I have found in " www.rtl-sdr.com/limesdr-unboxing-initial-review "

from 15. Feb. 2017 , the following sentence :

Spurs: With the antenna disconnected there are a lot of spurs and areas of large interference visible all across the spectrum.

Is it still there, or could you reduce the spurs and interferences articulately ?

What are the Minimum Hardware Requirements for the LimeSDR ?

Best Regards

Karl-Heinz