See: >>>/g/55171688
What could it be?
>>1011437
Looks like FM. What does it sound like? Try uploading it to that signal wiki
>>1011443
It's fm
https://instaud.io/r90#0:04.2
Thats a BCFM signal. Get a BCFM notch/85-108MHz band reject filter, and this will be gone.