1940 utc :
spur from 6145 KBS Wooferton : on 6205 approx.
spur from 6155 IRIB : on 6220 approx.
Both probably PDM filter faults.
Re the spitting jamming, I don't think this is deliberate jamming. An almost identical signal can be received on 6282ish.
On my Kenwood HF scanner, if a high power signal is received too strong, it can cause interference on other frequencies around the band, I have an attenuator switch I can use to lessen the signal overdrive... it has nothing to do with the transmitters though, simply a high power HF signal being received too strongly. My attenuator switch allows me to attenuate reception by 10 to 40 db in 4 stages.
In your case, perhaps not but the spurs mentioned
are faults in the transmitters.