Nessus is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.Here i want to discuss about Nessus.

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When in past i worked with SDR hardware i experimental that noise line in space is about -100dB, when i don’t amplify RF gain, when i amplify it, it is -80dB till -20dB. So other hand when i use different antenna pick value of noise is change, today i know that a antenna is a dipole network that can describe with scattering matrix.

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