on top of an Arduino
This board is
equiped with a AMBE3000
converts the analog
into a digital
And that, conversely, the
converted back into
an analog audio signal.
is 8Khz with a
depth of 16 bits.
This would be an
amount of data of
128000 bits per
second. Not suitable
to be sent via a
4800 bps radio
a digital signal
make it possible to
restore a signal
corrupted at the receiver station
up to a certain
DVMEGA AMBE3000 can be used as AMBE Dongle (Digital Voice converter) but also as a digital transceiver in combination with the Dual band radio shield or GMSK shield.
|The DVMEGA AMBE3000 shield will be delivered in conjunction with a LF amplifier / connection board. This board is equipped with a 0.3 watt LF amplifier and connectors for Mike, Speaker and power. Later, this module can be placed on the transceiver mainboard.|
|Step 1, Assemble LF audio board|
|Assemby instruction LF audio board|
|Step 2, Select or make microphone|
|Compatible microphones are MH48 (Yaesu) type.|
|Step 3, Load
Download and install Xloader. This is a simple program to load the firmware.
Download the hex file for your ARDUINO :
Start Xloader, choose the correct hex file, select Device and set the COM port to the port number that is assigned to the ARDUINO . The baud rate defaults to 115200. Then press Upload to load the firmware. If the firmware is loaded correctly a message will appear below in the bar of the Xloader screen .
|Step 4, Install
Before you can use the AMBE you have to program your callsign and info text. This data will be stored in Eeprom and has to be done only once. The program is self explained.
Download DVMEGA Tool here
Step 5, Settings G4KLX D-Star repeater software.
Installation manual G4KLX D-Star repeater with remote control
Firmware for the DV Dongle Radio Hotspot combination is available.