1，  Under the digital receiving interface, you can directly press the MENU key into the menu to edit the machine. In the editing menu interface, you will receive the digital signal and will not exit the editing menu.

2， The static noise level is changed from "ordinary, strict" to "0-9".

Special considerations!!!!!!!!!!!!，

(1) The version below the firmware DM9100.d03.031 should choose the USB connection and can be used with the latest write frequency software.，

(2)  The firmware does not upgrade DM9100.d03 above. 031 and does not work with COM. To make the latest upgrade DM9100.d03.031 version firmware, com can connect change,

(3)  After upgrading the firmware of version DM9100.d03.031 or above, (if the previous storage frequency) the new firmware version will normally open the previous storage frequency noise format, requiring the reset value in the PC menu. Pay special attention to it.

(4)  Upgrade DM9100.d03.031 above version firmware, you can also reset, do not import before the storage of files, noise level will be 1 level.

3，  If the voltage is too low or too high, the screen will indicate it.

4，  Can edit the key function, add "timing switch", can quickly switch the digital timing.

5，  Digital direct through, can receive the same frequency of the relay station signal.

6，  Write frequency software to add the recording menu, can open and close the recording, select the recording mode.

7，  Add "recording delay", you can choose how long the call time before starting recording.

8，  Add the recording management software, can directly play the recording content in the computer, and can be exported to the computer to save, the saved files can be directly played in the computer.

9， 

10， In the new version, the read and write frequency communication port is changed to virtual serial port, install the write frequency software will automatically install the driver software, open the write and write frequency software, remember to choose the correct port type.