The DRD (Digital Radio Decoder) uses an AMBE+2 vocoder for voice
decoding. The WiNRADiO DRD Demodulator/Decoder plugin is used to
receive digital transmissions with a codec employed to produce decoded
audio from the transmission. This device provides the necessary codecs
to decode up to 8 (optionally 16) digital transmissions simultaneously.
The WiNRADiO DRD can be used on systems with a single receiver, or up to
8 receivers. It is especially suitable for multichannel systems (like
the WiNRADiO MS-8118).
The WiNRADiO DRD makes it possible to demodulate, decode, analyze and
monitor DMR/MOTOTRBO, dPMR, D-STAR and NXDN digital signals
(excluding encrypted types) using the WiNRADiO WR-G39DDC and WR-G315
series of receivers.
The screen shot here shows the G39DDC version of plugin where a
separate window is spawned. With the G315 version, the plugin is
embedded within the main application window.
The decoder supports the voice traffic on both inbound and outbound
channels, displays digital transmission parameters and supports a secondary transmission
channel if 2 TDMA channels on a single frequency are being transmitted.
Under a multichannel environment, the WiNRADiO DRD comes with a
transparent software management system that assigns free channels to the DRD
upon request. When the channel is no longer used, the decoder can
release it, making it available for another decoder or transmission.