Pro RF measurement
Per-cell RSRP / RSRQ, per-beam RSRP, per-carrier SNR (up to 4 NR carriers), DL/UL MCS, BLER, CQI, PHR, TB size — sampled in real time from the DIAG socket.
Back to 5G/6G Studio
Studio Field · MMT COTS Mobile
Studio Field.
A COTS phone, turned pro drive-test tool.
Shipping · v1.0Android 11+WASM Web
Demo video coming soon
Demo video will appear here once it's added. Drop the .mp4 into /public/studio-field-demo.mp4 to enable autoplay.
Kotlin / Jetpack Compose Android app for 5G RF engineers and drive-test operators. 19 screens · 12 ViewModels · 25 Kotlin decoders · 49 Lua dissectors via tshark. Embedded Ktor REST / SSE / WebSocket server on port 8080 with a 32 MB Compose-Multiplatform WASM dashboard.
Includes 7-day Pro trial — auto activates on first launch, no card required
Android 11+ · Snapdragon-based handsets recommended · Root required for DIAG-socket features
- 19Compose screens
- 34Ktor REST routes
- 25+49Kotlin + Lua dissectors
20 5QI + 9 QCI QoS profiles · 6 drive-test campaigns · 6 export formats · 32 MB WASM dashboard.
What it does.
A full 5G drive-test instrument on a phone you already own. KMP + Compose ship the same Kotlin code to Android and a browser-served WASM dashboard.
25 Kotlin + 49 Lua dissectors
25 KMP Kotlin dissectors extract KPIs into GPS-stamped JSONL. 49 Lua dissectors run under tshark for full L1/L2/L3/NAS protocol decode — RRC, NAS, MAC, PDCP, RLC, IMS SIP.
3-path DIAG pipeline
PATH 1: KPI JSONL via Kotlin dissectors. PATH 2: Raw DLF (1 GB rotation) + UDP broadcast for QCAT / Wireshark. PATH 3: tshark + Lua for human-readable logs.
Drive-test with 6 campaigns
Quick, Standard, Throughput, QoS Voice, Idle. GPS map with RSRP-coloured route, event timeline, KPI panel. Export: CSV, XLSX, KML, JSONL, HTML report, DLF.
Embedded Ktor server
Kotlin Ktor CIO server on the handset, port 8080. 34 REST route files for remote control, log pull, dissector reload, and live KPI streaming to Studio Fleet.
Compose Multiplatform + WASM
Same Kotlin codebase ships to Android and a 32 MB WASM browser bundle, served by the on-device Ktor server. Real-time dashboard from any browser on the LAN.
Voice + video QoS
20 5QI profiles (TS 23.501) + 9 QCI profiles (TS 23.203). Latency vs PDB, loss vs PER, throughput scoring. PASS / MARGINAL / FAIL verdict with weighted composite.
Protocol tracker
RRC state machine, NAS tracking, SIBs, PDU sessions, measurement config, timers. NR + LTE + IMS message identification per TS 38.331 / 24.501 / 24.229.
Indoor map + route replay
Floorplan upload with tap-to-pin RF measurements. Replay saved drive-test routes, compare two sessions side-by-side, band-lock via AT commands.
12 ViewModels + engines
Traffic engine, tshark engine, AT command engine, KPI engine, drive-test engine, dissector registry, log rotator, DIAG broadcaster — composed via DI behind 12 Compose ViewModels.
Room SQLite persistence
On-device Room database for sessions, routes, measurements, license, and AI chats. Storage breakdown UI surfaces per-feature usage with cleanup actions.
License — Free / Pro / Enterprise
License manager with HMAC-SHA256 device binding. 7-day Pro trial on first launch. Per-feature gates: Pro unlocks Protocol / Indoor Map / Auto Test / Web API / Excel; Enterprise adds Band Lock / Route Replay / QoS SLA / Voice.
Five primary screens.
Plus a side drawer with 12 more for Traffic Tools, Log Summary, Protocol, Device Info, Utilities, Indoor Map, Auto Test, Band Lock, Route Replay, Compare, AI Chat, and Settings.
- Home
Serving cell, neighbours, CA/SCell, MIMO RI/PMI, speed test, RSRP chart, cell scanner
- Log Configroot
NR / LTE / IMS log code selection, multi-RAT mask, DIAG socket management
- Logsroot
Live protocol logs via tshark + Lua (L1/L2/L3/RRC/NAS), layer filtering
- Drive Test
6 campaign profiles, GPS map, RSRP route, events, KPIs, 6 export formats
- KPI Charts
DL / UL throughput, BLER, MCS, CQI, PHR charts on Compose Canvas
Embedded Ktor REST server.
34 REST routes on the handset itself, plus the WASM dashboard served from /web/ on port 8080. Automate drives, pull logs, or stream KPIs straight to Studio Fleet.
- GET/api/v1/statusDevice + APK health
- GET/api/v1/rfLive RF KPIs (stream)
- GET/api/v1/gpsCurrent GPS fix
- POST/api/v1/drive/startBegin a drive-test run
- POST/api/v1/drive/stopEnd the current run
- GET/api/v1/logsPull NAS / NGAP / RRC logs
- POST/api/v1/dissectorsReload Lua dissectors
- GET/api/v1/ims/callsVoNR / ViNR call history
- GET/web/Full WASM dashboard
- GET/connectQR code pairing page
+ 24 additional routes for dissector control, slice selection, IMS, AT commands, license, AI chat, and fleet telemetry.
Technology stack.
Kotlin Multiplatform with Compose Multiplatform — one codebase, two targets (Android + WASM).
| Technology | Used for |
|---|---|
| Kotlin 2.1.0 + KMP | Shared module (commonMain) across Android + WASM |
| Compose Multiplatform 1.7.3 | Shared UI for Android + browser |
| Jetpack Compose + Material 3 | Android-specific composables |
| Ktor CIO | Embedded REST + WASM server on :8080 |
| Room (SQLite) | On-device persistence |
| tshark 4.6 + Lua | Protocol decode (Path 3) |
| AGP 8.10.1 · Gradle | Mobile + WASM build |
| Ollama / Claude / OpenAI / Gemini | On-device AI chat |