How to Use Gps Navigation (easy Method)

TYT MD-390 GPS Troubleshooting and problem solving procedures Mountain Parameters 665 vistas SUSCRIBIRSE396 40 Publicado el 8 feb. 2017 We recently received back a couple of TYT MD-390 radios from a user that encountered problems with his first time use of a DMR radio. The video looks at the troubleshooting steps that were taken to identify the source of the problems, and correct or solve the issues. Note: The MD-390 can be purchased as a VHF or UHF model. It is not a dual band radio, so the VHF