YAOGREENHAM jumbospot V1.3 MMDVM_HS_Dual_Hat Duplex Hotspot Board kit With USB Port Support P25 DMR YSF NXDN For Raspberry pi |

YAOGREENHAM jumbospot V1.3 MMDVM_HS_Dual_Hat Duplex Hotspot Board kit With USB Port Support P25 DMR YSF NXDN For Raspberry pi |

4,8

All stars

Thank you seller all ok did not test the board yet but will update this review later on when i completed building this hotspot for my friend. on one picture is my own hotspot that i builded with the same mmdvm board using a nextion touch screen. Seller is highly recomended. thank you for the fast service.

This seller YAOGREENHAM is more than reliable. I placed many orders in the last few years and ordered about 15 Dual HAT Hotspots that all unit received works like a charm. What I like most about these guys is the shipping. They ship your order very fast and all I can say is that they have 100 per cent of my trust. I will keep ordering many more units this year and next year. Thank you YAOGREENHAM you guys are doing and excellent job Keep up the good work. Ben

Everything perfect worked the first one, no need to adjust deviation, shipping pretty fast, perfectly packaged.

New arrival :If you want to buy the finished MMDVM hotspot power bank ,please click this link
https:/item/1005003731255897.html


The default bit error rate is less than 5%, and the default offset is 0. If the bit error rate is more than 5%, as long as the signal can be received, it can be corrected by offset.
1.Latest version  V1.3, and the firmware is latest 

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.

An accidentially deleted 3v3 wire has been added back to the PCB layout. BOM, Mouser cart and stencil stay the same as for rev1.2.

Features: 
- High performance 32-bit ARM processor
- 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.
- Open source 3D printable case available
- 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 List:

- MMDVM duplex HotSPOT Module x1

- Antenna x 2

- SMA socket x 2pcs