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The P25 decoder (APCO P25 Phase 2 Decoder) uses both an internal
software IMBE vocoder and an external hardware AMBE+2 vocoder for voice
decoding. The WiNRADiO P25 decoder plugin is used to receive digital
transmissions with a codec used to produce decoded audio from the
transmission (this device provides the necessary codecs). The WiNRADiO
P25 decoder makes it possible to demodulate, decode, analyze and monitor
phase 1 and phase 2 types of APCO P25 digital signals (excluding
encrypted types) using the WiNRADiO WR-G39DDC, WR-G69DDC 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.
Note: An APCO trunking option is under development
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Supports a single decoding channel
