Here are a few audio clips of Area 51 and NTTR Security transmissions, recorded in the Rachel area.
| Freq [MHz] | Date and Time | Recording Location | Notes | |
 | XXX.XXX | Sat 09/03/2011 | F-4 crash site road | Data burst of new EMIDS road sensor |
| 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 Patrol 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" |