comments:
endfedhalfwave posted on r/amateurradio1w
Not sure if a filter would fix it, but may help. I bought and assembled K9DP's AM Broadcast filter and it fixed my radio. https://www.amazon.com/dp/B0GBZG4XC1
endfedhalfwave posted on r/amateurradio1w
Agreed, the G90 is easily overloaded. I bought the bigger version (https://www.amazon.com/dp/B0GBZG4XC1) because it wasn't much more expensive. Worked perfectly. OP, I'm curious which antenna you were using. For me, I had no issue with my 18ft vertical but when I made a 65ft EFHW the radio became unusable.