Low noise block-downconverter system with local oscillator module

A low noise block-downconverter system (LNB system), comprising:

• a local oscillator module configured to generate a high-frequency signal for downconversion, and including
• first phase locked loop circuitry (first PLL circuitry) configured to receive a low-frequency reference signal and connected in feedback to an intermediate-frequency oscillator so as to control the intermediate-frequency oscillator to generate an intermediate-frequency signal based on the low-frequency reference signal,
• second phase locked loop circuitry (second PLL circuitry) configured to receive the intermediate-frequency signal and connected in feedback to a high-frequency oscillator, separate from the intermediate-frequency oscillator, so as to control the high-frequency oscillator to generate the high-frequency signal based on the intermediate-frequency signal, a signal dynamic range of the first PLL circuitry being higher than the signal dynamic range of the second PLL circuitry;
• and
• low noise processing circuitry configured to receive an electrical signal generated by a probe in response to a radio frequency signal, the low noise processing circuitry configured to process the electrical signal using the high-frequency signal to generate a downconverted signal suitable for output from the LNB system.