Roving Security Patrols in vehicles: 142.20 MHz
Security backup frequency: 141.50 MHz
Base Station frequency: 409.025 MHz
Ground Intrusion Sensors: 496.25, 496.275, 496.30 MHz
Video Surveillance Perimeter Cameras: 210.01 MHz
Groom Lake AWACS Frequencies: 376.2, 391.8 MHz
Dreamland Frequencies: 118.7, 126.15, 253.4, 255.8, 261.1, 392.1 MHz
Groom Lake 554th Range Group: 238.3, 259.4, 268. 2, 293.5, 389.1 MHz
EG&G Co. (Contractor) ("Janet"): 153.05, 464.50, 464.55, 469.50, 469.55 MHz
Project Skunkworks: 252.4, 264.1, 264.6, 275.2, 283.7, 289.4, 292.1, 345.4, 349.3, 379.9, 382.6, 407.40, 407.50 MHz
Unknown use, but reported: 167.70 MHz