Possibly wide signal on 80m

Ignacy Misztal

Today I was calling D2EB on 3521. Several hams wrote that my signal was S9 signal on 3524, a frequency of 9J2LA. 
I captured the signal by SDR-IQ. The spurs at about -40 db are about 4 KHz wide. What could be happening? 
My K3 is #2289. 
Ignacy, NO9E

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