The normal operation of NovAtel receiver will be affected after Xavier is powered on

We use AGX Xavier in our system, which also has a NovAtel GNSS Receiver, but once the Xavier is powered on, the received GNSS signals will be significantly affected, The impact is manifested in the CNR (Carrier to Noise Ratio) of the signals, the CNR will be significantly reduced and fluctuate greatly. As a result, the GNSS positioning results will be notably worse.

So I want to ask for some solutions.

It looks like a EMI or RF interference issue. We have no special suggestion on this, customer should consider how to reduce this by increasing distance between receiver and Jetson or adding shielding design between that or other general methods.