Black N7 Assembled MMDVM Hotspot Main Board Portable Duplex Digital Voice Modem Box with 3.5-inch Color Screen

Black N7 Assembled MMDVM Hotspot Main Board Portable Duplex Digital Voice Modem Box with 3.5-inch Color Screen

Description:
- MMDVM digital walkie talkie modem (hotspot) box, which uses ordinary digital walkie talkies to achieve national interconnection and solve the limitation of communication distance for ordinary digital walkie talkies.
- MMDVM motherboards all use imported components and temperature compensated crystal oscillators with stable performance after long-term startup and low bit error rate.
- The new MMDVM duplex dual time slot digital hotspot board has optimized wiring, perfect component layout, low heat generation, fast heat dissipation, and other advantages, suitable for long-term startup work.
- The duplex board has the advantage of dual time slots for DMR, and all debugging parameters are carefully adjusted based on the DMR system. After calibration, the DMR system will be more stable in use, greatly improving the audio quality restoration.
- As for other system users, they can use with the same stability in DMR, D-Star, YSF (C4FM), P25, NXDN, and POCSAG modes as long as they make slight adjustments to the frequency offset.

Specification:
- Frequency: U band (420 - 434.9/438.1 - 470)
- Supported mode: DMR, D-Star, YSF (C4FM), P25, NXDN, POCSAG
- Power: 20mW
- Case material: 3D Printing
- Size: L x W x H = 120 x 95 x 43mm
- Screen: 3.5-inch color screen
- Power supply: built-in 18650 lithium battery
- Pi main board: for Nano Pi Duo2
- Hotspot main board: Duplex
- Dissipation method: active temperature-controlled fan (50℃ on/40℃ off)

Package Included:
- 1 x MMDVM Hotspot