Listening to a local repeater and the waterfall display shows some pretty wide modulation whenever the repeater is in use. If I’m showing +/- 50kHz on the scope then the repeater’s bandwidth is frequently 20+ even 60+ kHz.
Given that FM voice bandwidth is typically less than 15 kHz, this would indicate a failure somewhere on the repeater tx side of things right?
That’s a lot of power coming straight to your radio. Does this model have an attenuator or RF gain? Try turning it on (or down the RF again) and see if there’s still splatter.