Here are a few audio clips of Range Security transmissions, recorded in the Rachel area. We used a scanner similar to the Uniden Bearcat 3000, linked to a laptop with voice activated recording software.
Note: To reduce download time all clips are compressed with GSM 6.10. Not all players support this new standard. If you are unable to play the clips download them to disk first and then play them with Windows Sound Recorder. If you are using a Mac, you can download a free player and converter here.

Click on the speaker to listen to the clips. Enjoy...

	Freq. [MHz]	Date and Time	Location	Notes
	409.300	Thu 06/14/2001 9.00pm	Powerlines Overlook	NTS Range Security, Security Central Range security center, station check every 30 minutes
	148.500	Fri 06/15/2001 1pm	Rachel	Nellis Range Control frequency "Fox 4", Blackjack Used by contractors etc. driving through the ranges to check with range control center "Blackjack" for clearance to enter certain areas
	148.225	Tue 06/19/2001 6pm - 9pm	LN 32.3	Nellis Range Control frequency "Fox 3", Scorpion Base and Scorpion Partol Tolicha Peak ECR Range Security, station checks every 30 minutes, vehicles dispatched to investigate tripped sensors
	409.150	Thu 07/05/2001 9.50pm	Rachel	Security trunking system, control channel
	410.150	Thu 07/05/2001 9.36-9.38pm	Rachel	Security trunking system, coded voice transmissions
	148.500	Mon 07/09/2001 1.20pm-2.25pm	Between Warm Springs and Tonopah	Nellis Range Control frequency "Fox 4" (see above) Lockheed and Arcata contractors talking to range control Blackjack and helicopter crew setting up a mast and antenna at "Site 11"