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That seems like a valid concern. AM broadcast stations can produce strong signals that can potentially overwhelm the receiver and cause interference. Adding an inline filter can help mitigate this issue by reducing the strength of the AM broadcast signal before it reaches the receiver.
A filter specifically designed to attenuate AM broadcast frequencies can be effective in blocking or reducing the interference caused by nearby stations. It works by selectively filtering out the unwanted frequencies while allowing the desired frequencies (such as those used for amateur radio) to pass through.
Using such a filter can improve the reception quality of your Pixie QRP transceiver when operating in proximity to AM broadcast stations. It helps prevent overload and interference, allowing you to receive clearer signals from your desired frequency bands.
One of theses kits from Amazon will do the trick to limit AM interference and get you back on the air