Web dashboard
Runs in the browser, light and dark, also on a phone. Works offline, no cloud.
For the ADALM-Pluto (PlutoSDR)
Muxwright
Muxwright turns an ADALM-Pluto into a multi-standard lab transmitter. DAB+, FM with RDS, DVB-T/T2, DVB-C, DVB-S/S2, ATSC, ISDB-T, DTMB, PAL and NTSC from one interface, with an expected/actual report and a test record included.
- DAB+
- FM/RDS
- DVB-T/T2
- DVB-C
- DVB-S/S2
- ATSC
- ISDB-T
- DTMB
- QO-100 DATV
- HD · UHD · HDR10
- PAL/NTSC
Features by standard
Overview
Level, channel, monitoring, presets and records work the same for every standard. Only the standard-specific parameters change.
DAB+
Digital radio to ETSI EN 300 401
- Full ODR-mmbTools chain: AudioEnc, PadEnc, DabMux, DabMod
- Multiple services: HE-AACv2, AAC-LC, MP2; ensemble ID, labels, ECC
- Live DLS text, slideshow, announcements (cluster/alarm)
- Band III channels (5A–13F), capacity shown in CU
FM stereo + RDS
87.5–108 MHz, 19 kHz pilot, 50/75 µs pre-emphasis
- RDS: PI, PS, RT, RT+, PTY, TP/TA, AF (A/B), CT, PTYN, LPS, EON
- Adjustable deviation, pilot and RDS level, MPX power per BS.412
- Second carrier for adjacent-channel and capture tests
- RBDS (North America) with PI from the call sign; bands for Europe, North America, Japan (76–95 MHz) and China
- Report with SINAD, channel separation and RDS block error rate
DVB-T
ETSI EN 300 744, 8 MHz in real time on the Pluto
- 2k/8k, QPSK/16/64-QAM, code rate 1/2–7/8, guard 1/4–1/32
- 5/6/7/8 MHz bandwidth, cell ID (TPS)
- SD (MPEG-2) and HD (H.264 1080p25) live, multiple programmes
- SI tables PAT/PMT/SDT/NIT/EIT/TDT with LCN
DVB-T2
ETSI EN 302 755, Germany profile in real time on the Pluto
- T2-base with one PLP: FFT 1K–32K (also extended), QPSK to 256-QAM, code rate 1/2–5/6, rotated constellations
- Germany profile: 32K, 64-QAM 2/3, GI 19/256, PP4 – 27.3 Mbit/s for HD with HEVC
- All guard intervals and pilot patterns PP1–PP8, combinations checked against the standard
- Every stage bit-exact against gr-dtv, reception checked with two independent receivers
- New in Beta 0.4, not yet tested with TV sets
DVB-C
ETSI EN 300 429 (J.83 Annex A), J.83 B and C
- 64-QAM by default, 16 to 256-QAM selectable
- Free symbol rate, RRC filter in the AD9361 FIR or in software
- Cable channels S/K, NIT with cable delivery descriptor
- Same programme and SI tools as DVB-T
- J.83 B (US cable, 64/256-QAM, EIA-542 channel plan) and J.83 C (Japan) – not yet tested with receivers
DVB-S / S2
ETSI EN 300 421 and EN 302 307 (DVB-S2)
- On the satellite IF (950–2150 MHz): DVB-S QPSK, FEC 1/2–7/8, up to 22 MBd
- DVB-S2: QPSK 1/4–9/10 up to 22 MBd, 8PSK 3/5–9/10 up to 15 MBd, pilots, roll-off 0.35/0.25/0.20
- HD (H.264), UHD and HDR10 (HEVC Main10) in one transponder
- NIT with satellite delivery descriptor, EIT per service
- DVB-S2 chain bit-exact against gr-dtv, monitoring with per-packet CRC
Amateur radio DATV
DVB-S2 on QO-100 and the amateur bands
- QO-100 wideband uplink 2401.5–2409.5 MHz, downlink frequency shown
- 13 cm, 23 cm, 70 cm and 6 cm bands with band-edge check
- Symbol rates 125–2000 kS/s, QPSK/8PSK, H.264 or HEVC
- Callsign required: in programme and network name, transmitting only in amateur radio mode
- Only with an amateur radio licence, filter and amplifier according to the band plan
Analogue TV PAL/NTSC
PAL B/G, D/K, I, M, N and NTSC-M/J with FM sound
- Negative AM with vestigial sideband, PAL colour with burst
- Test pattern, image, video or YouTube source with clock overlay
- Channels E2–E12, K21–K69 and cable S02–S41
- Report: line frequency, levels, sound/vision ratio
- 525 lines: NTSC-M/J and PAL-M, plus PAL-N; channels Americas A2–A69 and Japan J1–J62 – not yet tested with receivers
ATSC 1.0
ATSC A/53, 8-VSB for North America
- 8-VSB at 19.39 Mbit/s, symbols bit-exact against gr-dtv
- PSIP: MGT, virtual channels (TVCT) and system time (STT)
- MPEG-2 video and AC-3 audio, channels A2–A69
- New in Beta 0.3, not yet tested with TV sets
ISDB-T / Tb
ARIB STD-B31 and ABNT NBR 15601 for Japan and Latin America
- Modes 1 and 3, one layer (13 segments) or 1seg plus 12 segments
- QPSK to 64-QAM, time interleaving, TMCC; reception checked with gr-isdbt
- Brazil: H.264 and AAC, channels A14–A69; Japan: MPEG-2 and AAC, channels J13–J62
- New in Beta 0.3, not yet tested with TV sets
DTMB
GB 20600 for China
- Multi-carrier (3780) and single-carrier, 4-QAM-NR to 64-QAM, PN420/595/945
- LDPC code rates 0.4/0.6/0.8, time interleaving 240 or 720
- Channels DS13–DS68, reception checked with dtmb-sdr
- New in Beta 0.3, not yet tested with TV sets
Windows installer
Setup without admin rights. One double-click starts server and dashboard. Close the window = transmitter off, Pluto muted.
Guided setup
In 20 languages: check device and firmware, rate PC performance, choose the operating mode, install components from the official sources.
Firmware flasher
Verifies the image, tests it in RAM first, backs up the running firmware and flashes only after confirmation.
Monitoring receiver
The Pluto's own RX input receives and decodes the signal: sync, SNR, services, text.
Expected/actual report
Every configuration is rendered and decoded. Deviations are listed line by line.
Test plans & presets
Templates for recurring tests, level ramps and channel changes.
Test records
Print-ready record with timestamps, parameters and results, e.g. for certification.
System requirements
| Use case | CPU minimum | CPU recommended | NVIDIA NVENC minimum | NVIDIA NVENC recommended | RAM minimum / recommended |
|---|---|---|---|---|---|
| DAB+ / FM-RDSaudio | Any current PC. Audio encoders need very little computing power; no graphics card required. | 8 / 16 GB | |||
| SD MPEG-2DVB-T/C/S, 576i | any 2-core CPU | 4 cores / 8 threads | – (NVENC has no MPEG-2) | – | 8 / 16 GB |
| HD 1080p25 H.264DVB-T/C/S | 4 cores / 8 threads, x264 veryfast estimate | 6 cores / 12 threads from 2021, e.g. Core i5-12400 (x264 medium ≈ 100 fps) or Ryzen 5 7600 (≈ 135 fps) | Maxwell 1 (GTX 750 Ti) | Turing or newer (GTX 1660 / RTX 2060+) | 8 / 16 GB |
| UHD 2160p25 HEVC8-bit, DVB-S2 | 8 cores / 16 threads, x265 superfast estimate | 16 cores, e.g. Ryzen 9 9950X (x265 medium ≈ 40 fps) or Core Ultra 9 285K. For comparison: i5-12400 ≈ 15.5 fps, Ryzen 5 7600 ≈ 17.5 fps | Maxwell 2 (GTX 960) | Turing or newer (RTX 20/30/40) | 16 / 32 GB estimate |
| UHD HDR10HEVC Main10, DVB-S2 | 16 cores or more, fast x265 presets estimate | 16+ cores; an NVENC card is usually the better choice here | Pascal (GTX 1050–1080) | RTX 20xx or newer; Ada/Blackwell (RTX 40/50) for headroom | 16 / 32 GB estimate |
| DATV H.264/H.265amateur radio, low resolution | 4 cores / 8 threads | 4 cores / 8 threads are usually enough | Maxwell 1 (H.264) / Maxwell 2 (H.265) | Turing or newer (HEVC with B-frames) | 8 / 16 GB |
| 2–3 programmes at onceone multiplex | HD only: 8 cores / 16 threads | 8 cores / 16 threads or more for HD; UHD on the CPU is not realistic | any card that handles the codec in the rows above (up to 12 sessions) | RTX 4070 Ti+ / 5070 Ti+ (more NVENC units) for 3 × UHD with headroom | 16 / 32 GB estimate |
| Operating system | Windows 11 with WSL2. Virtualisation (Intel VT-x / AMD-V or SVM) must be enabled in the BIOS/UEFI. | ||||
Notes and details
- Values marked estimate are derived from benchmarks and were not measured with Muxwright. The fps figures come from OpenBenchmarking (x264/x265, preset medium, Bosphorus clip); for live 25 fps faster presets are enough, at a small quality cost at the same bit rate.
- NVENC generations: Maxwell 1 (GTX 750 Ti) does H.264 only. Maxwell 2 (GTX 950–980 Ti) adds HEVC 8-bit and 4K but no Main10. Pascal (GTX 10xx) adds HEVC Main10 (HDR10) but no HEVC B-frames. Early GTX 1650 cards still have the older Volta NVENC. Turing (GTX 1660 / RTX 20) adds HEVC B-frames. AV1 (RTX 40/50) is not used by DVB, so it is no reason to upgrade.
- Concurrent encode sessions on GeForce cards: currently 12 (driver 591.44 or later, December 2025), before that 8 (551.76 or later). That covers 2–3 programmes on any card; with UHD the limit is rather the throughput of the NVENC units.
- Drivers: Maxwell and Pascal support ends with the 580 driver branch. ffmpeg builds against current nv-codec-headers require driver 610 or newer, so GTX 9xx/10xx cards need an ffmpeg built with nv-codec-headers 13.0 or older.
- Laptops throttle under sustained load. Run them on mains power and pick the Windows power plan "High performance".
Upgrading hardware
Check first, then buy: if your PC meets the "minimum" column for what you want to transmit, you need nothing new. The biggest step is usually an NVENC graphics card for UHD/HDR10; more RAM only for UHD or several programmes.
These links lead to the accessories page; the product links there are affiliate links marked as ads.
Buy hardware
The radio: PlutoSDR
Muxwright needs an ADALM-Pluto (PlutoSDR). Adapters, cables, attenuators, gear for radio amateurs and PC hardware are on the “Accessories” page.
The original ADALM-PLUTO is also sold by Analog Devices distributors (no affiliate link).
Download
Beta 0.4 · For Windows 10/11 (64-bit), 86 MB. We e-mail you the download link once you confirm that you will use Muxwright only in a shielded lab.
Contact
Questions, lab evaluations, collaboration or licensing? Get in touch.