Raspberry Pi Duplex MMDVM Digital Hotspot Board UHF/VHF Dual Timing Support Dual Antennas Ready to Use

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. The default bit error rate is less than 5%, and the default 0ffset is 0. If the bit error rate is more than 5%, as long as the signal can be received, it can be corrected by 0ffset. Features:

- 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. - UHF 430-450 MHz,433mhz and 900MHz VHF 144 220 Opera FREQ: 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. Package includes: 1 x MMDVM duplex HotSPOT Module 2 x Antenna(UHF) 2 x SMA socket 1 x Aluminum alloy shell