Setup DUPLEX hotspot with Nextion Screen

How to setup DUPLEX hotspot with Nextion Screen

Controller Mode:Duplex Repeater 

(also make sure expert mode Duplex flag 1 not 0)

http://pi-star/admin/configure.php 

User: pi-star

Pass: raspberry

Set RX/TX MHz ,
Support UHF and VHF from Ver1.0.1.

Expert mode http://pi-star/admin/expert/edit_mmdvmhost.php

RX  434755000
TX  439755000

Attention:
set UHF TX - RX >= 5MHZ to Get better performance,
set VHF TX - RX >= 900MHzHZ to Get better performance,

Just work at amateur frequencies, and different countries have different amateur frequencies.

set RXOffset,TXOffset 
in expert mode,if BER >1%

http://pi-star/admin/expert/edit_mmdvmhost.php ,for example, set value = -300
RXOffset= -300

TXOffset= -300

You can also adjust the parameters that make the Error Rate % to the lowest.

Expert mode http://pi-star/admin/expert/edit_mmdvmhost.php 

Program your DMR Radio(Also YSF/P25/Other)

Make sure that：

Radio TX = HotSpot RX

Radio RX = HotSpot TX

Color Code = 1 (same as setting as pi-star)

Repeater Slot = 1 (TS1 as brandmeister.network)

Repeater Slot = 2 (TS1 as brandmeister.network)
Close Allow Talk round option