915 Generation P25 Mini Duplex MMDVM Hot Spot Board for Pi Star Zero W 0W 2W 3B4BMMDVM Mobile Power Supply

Supports P-25 D-Star and System
Fully tested
Onboard LED to show status TX PTT Mode
SMA antenna connector antenna included
Mounts on all current for 's including the Pi Zero w 2W

Only applicable to Mini Duplex MMDVM board
To set the Pi star software and raspberry hardware rpi 0-3 you need to delete the Right Socket for the new pi4b
MMDVM_ General Pi star configuration of DUPLEX
Set controller mode duplex repeater or simple
RF Freq 144-148219-225 main frequency band 420-475842-950
Duplex mode Example 438000000 TX 433000000
Duplex mode Example 145000000 TX 433000000
Simple mode Example 438000000 TX 438000000
Best adjusted TX =0 =0need no offset
Radiomodem type STM32-DVMMMDVM_ Aspberry pi Hat GPIO or any other GPIO board
Antenna on board two antennas
on board to show status with status words on shell
Update new firmware pi starExpertssh access pi star pass raspberry
sudo pistar-mmdvmhshatflash hs_ dual_ hat
The default bit error rate is less than 5% and the default offset is 0 If the bit error rate is 5% as long as the signal can be received it can be corrected through offset
colorWhite
MaterialPCB

Package Contents
1 x Hotspot board
2 x Row

Only the above package content other products are not included
Note Light reflection and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is - 1-3cm