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    Duplex MMDVM ADF7021 Hotspot Support D-Star DMR P25 YSF Pi+ OLED Rev 1.3 Antenna

    • - High performance 32-bit ARM processor
    • - Fully tested
    • - Supports DMR, P-25,D-Star and System Fusion
    • - Onboard LEDs to show status (Tx,Rx,PTT,Mode)
    • - Up to 10mW RF power
    • - SMA antenna connector,Antenna included
    • - Mounts cleanly on all current Raspberry Pi's including the Pi Zero
    • - The firmware is pre-loaded and is easily upgraded via software.
    • - Open source 3D printable case available
    • - UHF 430-450 MHz,433mhz and 900MHz
    • - VHF 144 220 Opera FREQ
    • - Duplex variant of MMDVM_HS_Hat
    • - This PCB uses the MMDVM_HS . It has two ADF7021 onboard and allows for duplex operation with two time slots on DMR.
    • - An accidentially deleted 3v3 wire has been added back to the PCB layout. BOM, Mouser cart and stencil stay the same as for rev1.1.
    • - The upper part is TX,the lower is RX antenna.
    • - UHF+VHF
    • - SMA,antenna
    • - Modem select: STM32_HS_GPIO
    • - Set TX frequency,RX frequency
    • - TX,RX frequency had better 10M or more apart.
    • - SLOT1,SLOT2 support.
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    Note: 1. Hardware version 1.0, software version 1.4. 17 2. Without shell 3. Not include the raspberry pi 4. The firmware is pre-loaded. Please do not upgrade the firmware by yourself.

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