Hytera MD652i

• Over-the-Air
  MD652i can support sending radio aliases over the air when PTT. The radio receives the call and can decide to create a new contact or overwrite the old one automatically. It is very convenient for the customer to manage the fleet with the correct contact stored in each radio without touching each unit for programming.
• Enhanced Quick GPS
  Compressed GPS data can be packaged in a single frame to significantly increase capacity up to 450 units/min, which is tripled in DMR Tier II systems. This enhancement improves data channel efficiency and reduces hardware cost.
  
• Trunked & Conventional Switch
  By pressing a single button or twisting the channel knob, radios can be switched between trunking and conventional mode without restarting. During this process, registration and deregistration in the trunking system are done automatically, and over-the-air authentication is still available.
• Optimized Push-to-Talk
  It allows a radio to set up an audio buffer and store what the user speaks before the call is established. Then, it sends the stored audio together with the coming real-time audio after the call is established. Therefore, users can talk right after pressing PTT without waiting for the “go-ahead tone.” This feature also enhances the handover function without dropping communications in the Tier III system during site switches.
• Secure Communication
  Allows basic/advanced end-to-end encryption and over-the-air encryption in digital mode. Allow scrambler feature in analog mode.
• Out-of-range Notification in RMO
  A radio is always notified when it has left the repeater coverage. By paying attention to the alert tone, users can realize if they are always in the talk range.