Apparatus for monitoring radio frequency signals

An apparatus for monitoring radio frequency (RF) signals, said apparatus comprising:

• an RF splitter for splitting a set of incoming RF signals into a first RF signal path, a second RF signal path and a third RF signal path;
• a first track-and-hold circuit, clocked at a first frequency, for sampling said incoming RF signals from said first RF signal path;
• a second track-and-hold circuit, clocked at a second frequency, for sampling said incoming RF signals from said second RF signal path;
• a third track-and-hold circuit, clocked at a third frequency, for sampling said incoming RF signals from said third RF signal path;
• a first analog-to-digital circuit (ADC), clocked at said first frequency, for receiving sampled data from said first track-and-hold circuit;
• a second ADC, clocked at said second frequency, for receiving sampled data from said second track-and-hold circuit;
• a third ADC, clocked at said third frequency, for receiving sampled data from said third track-and-hold circuit;
• and
• a frequency tracking module for determining a frequency of said incoming RF signals.

A method for monitoring radio frequency (RF) signals, said method comprising:

• receiving a set of RF signals;
• splitting said received RF signals into a plurality of RF signal paths;
• sampling said received RF signals at a different clock frequency for each of said RF signal paths;
• converting said sampled RF signals to digital signals at the different clock frequency for each of said RF signal paths;
• and
• determining a frequency of said received RF signals.