If you're in the EU countries, due to the new IOSS TAX, from 2021.7, purchasing product from my website, as an individual, I cannot provide the IOSS Number, and the customs clearance process requires the participation of the buyer. The low efficiency of postal processing, the post office often does not take the initiative to contact you, resulting in a serious delay of delivery (14 days to 30days).
If you need quick delivery (EU countries, 10 days about), please purchase from my AliExpress link (there will be platform fee, IOSS TAX).
https://www.aliexpress.com/store/5077377 （Easyes Store Open3 year(s) 100.0% Positive feedback）
Work in Digital mode DMR YSF P25 NXDN D-STAR POCSAG ,
DMR work TS1/TS2, YSF P25 NXDN D-STAR RX shift TX
VHF/UHF, frequency range: 144MHz-148MHz, 420MHz-475MHz,842MHz-950MHz,
*Avoid satellite frequency: 145.8~146.0 MHz , 435~438.000 MHz
Upgrade firmware use Pi-Star SSH mode , ST-LINK
Support Raspberry Pi Zero, 4B, 3B, 3B+, NanoPi, Orange Pi
Two timeslots in DMR mode, act as a mini Digital voice repeater.
High-quality TCXO, stable with low BER.
Wiki : https://www.bi7jta.org/wiki
USBtoPCAdapter: for use PC Linux Windows, VMVare Pi-Star, BlueDV replace Raspberry Pi Pi-Star OS.
Diagram, USBtoTTL witout A+ extend