| Feature | Public Version (1.101) | Fast Lane (2.71+) | |---------|------------------------|-------------------| | Basic decoding (DMR, P25, NXDN, D‑STAR, ProVoice) | ✅ | ✅ (improved) | | Trunk tracking with two SDRs | ❌ | ✅ | | Per‑call recording (WAV / MP3) | ❌ | ✅ | | GPS / LRRP data display | ❌ | ✅ | | Con+ repeater maps | ❌ | ✅ | | Polarity override ( -p- ) | ❌ | ✅ | | Multiple simultaneous instances | ❌ | ✅ | | P25 Phase 2 | ❌ | ❌ (added later) | | Regular updates via email | ❌ | ✅ |
: When using an internet-connected PC, hovering over signals in the spectrum window can display FCC license information. Protocol Decoding : Enhanced decoding for P25 Phase 1 Note: Version 2.71 notably did not support P25 Phase 2. Download and Installation
: Popular in commercial, business, and local utility sectors.
: Improved decoding stability and performance for P25 Phase 2 digital radio systems. Improved DMR Decoding dsdplus 2.71 download
To ensure the best functionality, it is strongly recommended to download the latest public version from the official source, rather than seeking out older 2.71 files.
Improved handling of multi-frequency trunked networks (DMR Tier III, NXDN, and P25), allowing for faster channel switching and less missed audio.
To use DSD+ 2.71, you will need a computer with the following system requirements: | Feature | Public Version (1
Run the DSDPlus.exe to begin the software setup, as demonstrated in this YouTube guide .
If you are routing audio from external SDR software like SDR#, you need a virtual audio pipeline. Download and install . Set your SDR software audio output to Cable Input . DSDPlus will listen to Cable Output . 3. Launching DSDPlus
DSDPlus decode legally encrypted communications. If the software log window displays "Encrypted Group Call", the audio will automatically mute or output a digital rasping sound. This is normal behavior. High Error Rates : Improved decoding stability and performance for P25
Create a dedicated folder on your computer (e.g., C:\DSDPlus ). Extract all the contents of your downloaded DSDPlus zip file into this folder. Do not run it from inside the zip archive. Step 2: Add the DLL Files
When looking for the DSDPlus 2.71 download, it is important to understand the two branches of the software: 1. DSDPlus Public (Free) Version
For trunked systems (P25, DMR Tier III, NXDN trunking), DSD+ can follow channel grants and automatically tune a second SDR to the assigned voice channel. The RadioReference wiki offers a detailed guide on configuring DSD+ for P25 trunking, including how to download site and talkgroup data in DSD‑formatted CSV files.