RR publishes data submitted by users in the area. At top of the Arnold page you will find a 'Submit' button to correct or add data. One of the Admins would then make the change.
Again, the system may have changed from 400 MHz or added new freqs for control. You can run a Limit Search on 385 MHz as previously suggested but include a second search for 406.0000 to 410.0000.
The RR database was updated this week to show that this system, U. S. D. O. D., Arnold AFB, Tullahoma, Coffee Co., TN is now a digital Project 25 Standard. The RR database list two control channels, 385.71250 and 385.96250. Additionally, I regularly monitor traffic on these frequencies: 387.4625, 387.8125, 389.0375, abd 389.3125. However, I have been unable to set this up in my scanner as a TRUNKED SYSTEM, and have only been able to receive in the "CONVENTIONAL" mode. I would like to be able to program this system so I could receive it as a trunked system, but I need some HELP! Can you advise should my scanner, GRE 500, be set to MOT VHF/UHF, P25 MANUAL, or P25 AUTO? Should I enter the control channels only, or all of the frequencies I mentioned? Do trunking tables need to be entered, or should it be set to default? If trunking tables are needed, where can I get these? Also, do trunk group numbers be added or can I use the "wildcard" instead? Any help would be greatly appreciated!