AURSINC MMDVM Duplex Hotspot Module Dual Hat V1.3 Support P25 DMR YSF NXDN DMR Slot 1 + Slot 2 for Raspberry pi with USB Port (Without OLED)
Brand: AURSINC
Color: Without OLED
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-DVM/MMDVM_HS-Raspberry pi Hat(GPIO)

Package List:
1x MMDVM duplex HotSPOT Module
2x Antenna
HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece.
WIDELY COMPATIBLE: Supports DMR, P-25, D-Star and System Fusion
WORK with RASBERRY Pi: Mounts cleanly on current Raspberry Pi including the Pi Zero , NOT compatible with Rasberry Pi 4.
Update new FW: (pi-star / expert / ssh access / user :pi-star pass:raspberry) then run sudo pistar-mmdvmhshatflash hs_dual_hat set Jumper BOOT0=1,BOOT1=0 and soler JP1 First! After upgraded finished, disconnect JP1
FREQUENCY: Radio Frequency : Freq:144-148,219-225, (Main Band) 420-475,842-950 NOTE: TX =0, RX=0. Modem select: STM32-DVM/MMDVM_HS-Raspberry pi Hat(GPIO) or any other (GPIO board)