Newest V1.5.2 MMDVM_HS_Hat Duplex variantThis PCB uses the MMDVM_HS . It has two ADF7021 onboard and allows for duplex operation with two time slots on DMR.Features:- 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.- FREQUENCY: UHF 433-900MHz, VHF 144-220 MHz. NOTE: TX =0, RX=0. Modem select: STM32_HS_GPIONoteThe upper part is TX,the lower is RX antenna.UHF+VHFSMA,antennaModem select:STM32_HS_GPIOSet TX frequency,RX frequencyTX,RX frequency had better 10M or more apart.SLOT1,SLOT2 support.Package List:- MMDVM duplex machine x1
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