July 6, 2026

NyxScope: A Windows Multi-Protocol SDR Decoder Program with Multiple Digital Native Decoders

Recently, we've learned about NyxScope, a multi-protocol SDR receiver program for Windows that comes with multiple native decoders built right into the software. Their own description describes this all-in-one program best:

You get spectrum and waterfall, multiple concurrent VFOs, trunked-radio following, digital voice, aviation and marine tracking, paging, ISM sensors, HD Radio, and transcription, in one binary.

NyxScope includes decoders for P25 Phase 1 and Phase 2 voice, EDACS and NXDN control channels, ADS-B, AIS, ACARS, POCSAG, FLEX, LoRa CSS PHY + LoRaWAN MAC, Morse, RDS, CTCSS/DCS, Iridium decoding (with voice), and also includes a signal classification tool, Bluetooth LE scanner, and Whisper voice-to-text transcriber. It also outsources decoding of other protocols to mature decoding software such as multimon-ng, rtl_433, dsd-neo, nrsc5, direwolf, dumpvdl2, dump978, rs41mod where required, noting that the outsourced decoders are bundled with the software, meaning no extra installation work is required.

The software supports RTL-SDR, HackRF, Airpsy, bladeRF, SDRplay, Fobos and PlutoSDR. It also supports using multiple SDRs used in parallel.

The software does not appear to be open source, but it is provided for free with a limitation of 3 concurrent VFOs and a limitation on recording, transcribing, and pager messages. A perpetual per-machine license for $89.95 can be purchased to lift these restrictions and add access to their FCC frequency lookup database.

NyxScope Screenshot Scanning the 800 MHz Band

May 19, 2026

GopherTrunk: A New Pure-Go Trunked Radio Scanner Supporting P25, DMR, TETRA, NXDN and More

Thank you to Matt Cheramie, who wrote in to let us know about his new software called GopherTrunk, a new RTL-SDR compatible radio scanner that follows digital trunked-radio voice calls and decodes them into audio. Gopher Trunk runs on a pool of RTL-SDR dongles and ships as a single ~10 MB static binary for Linux, macOS, and Windows. There are no C dependencies, so neither librtlsdr nor libusb are required at build or runtime, which makes deployment on a fresh machine or Raspberry Pi very straightforward.

On the protocol side, GopherTrunk handles control-channel decoding for P25 (Phase 1 and 2), DMR, TETRA, NXDN, Motorola Type II, EDACS, LTR, MPT 1327, dPMR, D-STAR, and YSF. The voice path is written in pure-Go and implements IMBE and AMBE+2 vocoders directly, removing the dependency on external DVSI or mbelib. The interface is terminal-based, but also includes a full browser-based operator console. There is also a configuration importer that parses RadioReference.com PDF exports and CSV bundles straight into the daemon config.

Matt notes that while the engine is running end-to-end, he is looking for SDR enthusiasts to test it against real-air captures to help refine the on-air FEC layers and vocoder audio levels. Prebuilt releases and the quick start guide are available at gophertrunk.org/downloads, and the full source is on GitHub. Feedback and bug reports are very welcome if you give it a try.