My new website:

Duplex hotspot board with ANTs, DMR C4FM D-STAR NXDN POCSAG

https://www.bi7jta.org/shop/duplex-hotspot-board-with-ants-dmr-c4fm-d-star-nxdn-pocsag-13

Duplex_Mini hotSPOT board with Ceramic Antenna

https://www.bi7jta.org/shop/duplex-mini-hotspot-board-with-ceramic-antenna-84

If you need high power repeater, please consider the MMDVM repeater product

https://www.bi7jta.org/shop/mmdvm-repeater-board-v3f4-dmr-ysf-d-star-nxdn-pocsag-fm-3

User‘s Manual

PDF Download https://www.bi7jta.org/files/UserManuals/

Youtube Page https://www.youtube.com/wintershuang

Features:

Support Digital Mode: DMR YSF|C4FM P25 NXDN DSTAR POCSAG

Double timeslot in DMR mode, work as a mini Digital repeater.

Support VHF/UFH/850MHz,

Frequency Range: 144MHz-148MHz, 420MHz-475MHz,842MHz-950MHz,

Avoid satellite frequency: 145.8~146.0 MHz , 435~438.000 MHz

High-quality TCXO, stable with low BER.

Support Raspberry Pi 3B, 3B+, 3A, 4B, Pi ZERO(W), Compatible with NanoPi NEO, Orange Pi, Compatible to BlueDV(Required to add USBtoTTL or Bluetooth model)

Including & components
1x PCB with complete soldering,
2x ANTs 5CM length,
1x 4PINs header connect to Nextion LCD

The default antenna is black color with 5CM length, the silver Alloy Case use white color antenna. If you need other lengths, please leave me a message.

Options:
See the components for detail.

PAYMENT : Paypal offline

SHIPPING: https://www.bi7jta.org/cart/index.php?route=product/product&product_id=51

Specs and Docs:
MCU: STM32F103C8T6
Transceiver IC: ADF7021,Programmable output power: -16dBm to +13dBm
TCXO: 14.7456MHz,±2.5 ppm
HAT: 1.6mm thick, unleaded process

https://www.st.com/en/microcontrollers/stm32f103c8.html
http://www.analog.com/media/en/technical-documentation/data-sheets/ADF7021.pdf
http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO

After sales and support:
bi7jta@gmail.com Facebook Message https://www.facebook.com/winters.cn/ , Twitter , Telegram, Whatsapp: +8613927458201

Product show:

With OLED 0.96' and 1.3'