The DVMEGA-UHF board is a daughter card for the Raspberry Pi. In combination with this single board computer it becomes very easy to construct an entire radio solution for a low power D-Star Node Adaptor.
The DVMEGA-UHF transceiver board utilizes the chip ADF7021. This IC constitutes a complete transceiver for digital data with GMSK modulation. The control of the transceiver chip is handled with a local ATMEGA 328 on the same board. The result is a flexible digital transceiver component with low power for the frequency range from 430 to 450 MHz. The DVMEGA-UHF board handles the radio side and the modulation/demodulation part, the Raspberry Pi is used for the protocol handling of DMR (and future digital modes).
The software for the Raspberry Pi is available in a Yahoo group where G4KLX offers programs like ircDDBGateway and the PCRepeaterController. With these programs and the above mentioned hardware it becomes very easy to construct a local low-power hotspot for digital modes. The benefit is, that due to flexible construction and software, future developments can be made available as well.
- Fits on Raspberry PI version A and B
- Single band UHF radio
- 10 mW output power
- SMA antenna connector [antenna not included]
- Completely assembled
- Ready to use, firmware is pre-loaded
Currently the following DV modes are supported: