EC-130J (81932) Out of Harrisburg - The 193rd Special Operations Wing, Pennsylvania Air National Guard, operates this aircraft.
The EC-130J Commando Solo, a specially-modified four-engine Hercules transport, conducts Military Information Support Operations (MISO) and civil affairs broadcasts in FM radio, television and military communications bands. These missions are typically flown at night to reduce probability of detection in politically sensitive or hostile territories.
https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104535/ec-130j-commando-solo/
SAM836 from JBAB also loitering IVO Harrisburg.