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Overview[edit]

The DV-MEGA is a family of add-on boards (shields) for Arduino Uno, Arduino MEGA and Raspberry Pi for several digital voice communication standards.
DV-MEGA is produced by Guus van Dooren PE1PLM, http://www.dvmega.auria.nl/

The dualband (VHF/UHF) versoin DBR UNO.png

The single band (UHF) versoin Dvmega sb.jpg

Currently supported are the following DV modes:


To communicate via such a hotspot, a transceiver capable of the used DV mode is necessary to operate, the hotspot provides only an access gateway to the selected infrastructure. The DV-MEGA has only one time slot.

Functionality[edit]

Soon[edit]

Mode of work[edit]

Configuration[edit]

[General]
Callsign=W1AW (Enter Your Call Sign Here)
Timeout=180
Duplex=0 (Set this to zero as this is a simplex device)
ModeHang=10
Display=None
Daemon=0

[Info]
RXFrequency=446000000 (Set your receive frequency here in this format.)
TXFrequency=446000000 (Set to the same as your receive frequency in this format.)
Power=1 (THIS VALUE IS REQUIRED FOR DVMega's)
Latitude=0.0 (THIS VALUE IS REQUIRED FOR DVMega's)
Longitude=0.0 (THIS VALUE IS REQUIRED FOR DVMega's)
Height=0 (THIS VALUE IS REQUIRED FOR DVMega's)
Location=Mobile (Location Varies)
Description=Multi-Mode Hotspot
URL=www.qrz.com/db/yourcallsign

[Log]
# Logging levels, 0=No logging
DisplayLevel=2
FileLevel=2
FilePath=.
FileRoot=MMDVM

[CW Id]
Enable=0
Time=10

[Modem]
Port=/dev/ttyAMA0
TXInvert=1
RXInvert=1
PTTInvert=0
TXDelay=100
DMRDelay=0
RXLevel=50
TXLevel=50
OscOffset=0
Debug=0

[DMR]
Enable=1
Beacons=0
Id=123456 (Set to your DMR ID, a separate ID is NOT required.)
ColorCode=1 (Chose any color code.)
SelfOnly=0
# Prefixes=234,235
LookupFile=DMRIds.dat
TXHang=0 (Set to zero as this is a simplex device.)

[DMR Network]
Enable=1
Address=central.brandmeister.us (east/west/central.brandmeister.us) CHOOSE THE CLOSEST SERVER
Port=62031
Password=passw0rd
Slot1=0 (YOU MUST DISABLE THIS TIMESLOT AS THIS IS A SIMPLEX DEVICE.)
Slot2=1
Debug=0

Hardware[edit]

Three different hardware configurations of DV-MEGA are currently available:

Software[edit]

RaspberryPi Image[edit]

This is a list of ready to use SD-Card images. Please append your URL.