GOOZEEZOO MMDVM Duplex Hotspot Module Dual Hat with V1.47 Support P25 DMR YSF NXDN DMR Slot 1 + Slot 2 for Raspberry pi (Without OLED)($35.99Value)

Description

if the board fails to work on duplex mode, please run the upgrade command: sudo pistar-mmdvmhshatflash hs_dual_hat ; WIDELY COMPATIBLE: Supports DMR, P-25, D-Star and System Fusion HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece. EASY OPERATION: The firmware is pre-loaded and is easily upgraded via software. Onboard LEDs showing status (Tx,Rx,PTT,Mode) WORK with RASBERRY Pi: Mounts cleanly on current Raspberry Pi including the Pi Zero , NOT compatible with Rasberry Pi 4. FREQUENCY: UHF 433-900MHz, VHF 144-220 MHz. NOTE: TX =0, RX=0. Modem select: STM32_HS_GPIO DESCRIPTION

Original cystal : Original ECS-TXO-3225-147.4-TR from USA
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.

Setting Tips:
Modem select: STM32_HS_GPIO

Package List:
1x MMDVM duplex HotSPOT Module
2x Antenna
2x SMA socket