To ensure the most efficient use of the sea and airspace in selected Fleet Operating Areas the Navy established Fleet Area Control and Surveillance Facilities. The FACSFAC Vacapes, VA is the agency which oversees flights and operations for Warning Areas and restricted areas from VA, MD, DE, NJ, NY, CT, and MA. FACSFAC Vacapes, VA call sign is "Giantkiller". If you live an any of the above states plus Eastern Pennsylvania you will hear activity on these frequencies. I would from time to time hear Giantkiller while living in Lancaster PA using nothing more than an Indoor Discone. Will staying at our beach house in Ocean City, MD these frequencies were very active.
Updated 12/27/2011
| Frequency | Description | Modulation |
| 271.5000 | GIANTKILLER East Ops - W50, W72 Hampton Roads | AM |
| 233.7000 | GIANTKILLER East Ops - W50, W72 Hampton Roads | AM |
| 125.3750 | GIANTKILLER East Ops - W50, W72 Hampton Roads | AM |
| 118.1250 | GIANTKILLER East Ops - W50, W72 Hampton Roads | AM |
| 350.0000 | GIANTKILLER East Ops W386, W387 Hampton Roads | AM |
| 238.1000 | GIANTKILLER East Ops W386, W387 Hampton Roads | AM |
| 118.1250 | GIANTKILLER East Ops W386, W387 Hampton Roads | AM |
| 338.1000 | GIANTKILLER North Ops W105,106,NJ, NY, CT, MA | AM |
| 305.0000 | GIANTKILLER North Ops W105,106,NJ, NY, CT, MA | AM |
| 135.2250 | GIANTKILLER North Ops W105,106,NJ, NY, CT, MA | AM |
| 312.3000 | GIANTKILLER North Ops W107 Delmarva, NJ | AM |
| 135.7250 | GIANTKILLER North Ops W107 Delmarva, NJ | AM |
| 135.8750 | GIANTKILLER South Ops W110, W122 Pamilico Sound | AM |
| 310.1000 | GIANTKILLER South Ops W110, W122 Pamilico Sound | AM |
| 251.6000 | GIANTKILLER South Ops Cherry Point MCAS | AM |
| 254.2000 | Discrete LFI 14 Prime | AM |
| 312.3000 | W386 Common LFI 36 Prime | AM |
| 346.6000 | W386 Common | AM |
| 230.2250 | W72/W122 Discrete | AM |
| 350.0500 | W386 | AM |
| 238.1000 | W386 | AM |
| 292.3000 | W386 Common | AM |
| 327.2250 | W107 Discrete | AM |
| 346.6000 | W386 Common | AM |