The Air National Guard operates RC-26B surveillance aircraft (Wikipedia) to provide domestic availability of military surveillance technology while avoiding the restrictions of the Posse Comitatus Act (the Army National Guard operates RC-12 aircraft). RC-26B aircraft have also been noted operating in support of FEMA after Hurricane Harvey.
The ANG RC-26B aircraft have been modified as counter-drug support aircraft carrying specialized electronic equipment to provide aerial surveillance and reconnaissance for law enforcement agencies. The aircraft Main Operating Base (MOB) locations are: Fresno ANGB, CA; Clarksburg, WV; Jacksonville, FL; Kirtland AFB, NM; Meridian MS; Houston, TX; Syracuse, NY; Fairchild AFB, WA; Tucson, AZ; Madison, WI; and Montgomery, AL.
In Houston, an RC-26B is permanently based at Ellington International Airport (EFD/KEFD) and uses the callsign "Voodoo 92." This aircraft provides support for anti-narcotics surveillance and border enforcement. The physical aircraft are periodically rotated around the country. Local law enforcement and interoperability frequencies (and talkgroups on TxWARN) are used for operational air-to-ground communications with agencies such as DEA, CBP, and ICE.
RC-26B aircraft use a variety of mode S codes and transponder idents.
|Mode S Hex||Idents Used||Callsigns Used|
|520274||RCH 1028||Anvil 01, Voodoo 92|
|A7F1D0||Bear 26, FEMA Bear 26 (Civilian Registration N6105L)|
|ADFD88||Voodoo 92, Voodoo 01|
The aircraft use civilian VHF frequencies for communication with air traffic control.
|118.0||S||CSQ||"Streak" base during Hurricane Harvey (with "Bear 26," "Anvil 01," "Voodoo 92")|
|118.05||S||CSQ||"Streak" base during Hurricane Harvey (with "Anvil 01")|
|136.375||S||CSQ||CBP air-to-air/air-to-base ("Voodoo Ops" heard)|
|150.7375||M||n 293||Surveillance Air-to-Ground|
|225.05||S||CSQ||NORAD 11 - "Streak" base during Hurricane Harvey with several RC-26B aircraft operating ("Bear 26," "Anvil 01," "Voodoo 92")|
|288.5||S||CSQ||National Guard Command Post ("Lone Star") at Ellington|