A modern, high-performance web dashboard for real-time RF spectrum analysis, antenna diversity management, and remote hardware telemetry control for the Shure Axient Digital AD600 Spectrum Manager.
In standard production workflows, connecting to the Shure AD600 with Wireless Workbench (WWB) limits the live spectrum view to a single computer and a single operator.
This application was built to break through that single-screen bottleneck and unlock collaborative RF workflows across production teams:
- Simultaneous Multi-User Access: Any number of engineers, technicians, and coordinators can open the live spectrum plot at the same time on their own screens over the local network.
- Multi-Device Support: Responsive web layout optimized for iPads, tablets, smartphones, and laptops, allowing team members to carry live spectrum monitoring directly to the stage, backstage, or venue perimeter during walk-tests and rehearsals.
- Zero Client Installation: Team members simply open a web browser on their device to monitor real-time sweeps and antenna status without needing to install desktop software.
The Shure AD600 is an industry-standard wideband RF scanner covering 174 MHz to 2.0 GHz. This application communicates directly with the AD600 over your local network, managing real-time device control, automated frequency configuration, and continuous streaming spectrum telemetry.
It serves an interactive, low-latency dashboard accessible from any web browser on your computer or mobile device.
- High-Speed Hardware Sweeping: Continuously samples and plots live RF energy (dBm) with fast frame rates.
- Selectable Resolution Bandwidth (RBW):
50 kHz(Very High Resolution)100 kHz(High Resolution)350 kHz(Standard Fast Sweep)900 kHz(High-Speed Overview)
- Phosphor Persistence & Max-Hold: Live instantaneous sweeps with optional dotted peak-memory max-hold traces per antenna.
- Single-Shot & Continuous Modes: Capture single sweep snapshots or stream uninterrupted real-time sweeps.
- Discrete Antenna Assignments: Assign independent frequency ranges to individual physical RF inputs (Antennas A through F).
- Pre-configured Frequency Presets:
- Shure Bands: G57 (470–608 MHz), G57+ (470–616 MHz), G10 (470–542 MHz), H22 (518–584 MHz), J8 (626–664 MHz), J8A (554–616 MHz), K54 (608–663 MHz), X55 (940–960 MHz).
- Sennheiser Bands: A1–A4 (470–558 MHz), A5–A8 (550–608 MHz).
- Frequency Spans: VHF (174–216 MHz), Low UHF (470–524 MHz), Mid UHF (524–620 MHz), Upper (608–1000 MHz), AFTRCC (1435–1525 MHz), 470–1000 MHz, 470–2000 MHz, 174–1000 MHz, and Full Span (174–2000 MHz).
- Custom MHz Ranges: Arbitrary user-defined start and stop frequencies.
- Diversity Pair Coupling: Group paired antennas (
A+B,C+D,E+F) into unified interface cards locked to matching frequency windows. - Intelligent Sweep Optimization: The engine automatically computes the tightest bounding frequency envelope across all active inputs and configures the hardware oscillator to sweep only that window. Sweeping a 150 MHz span (e.g. 470–620 MHz) is ~3.5x faster than scanning all of UHF.
- Live Status: Reads the 12V DC bias state of all antenna inputs (A–F) on connection and subscribes to changes, so bias switched elsewhere (front panel, WWB) shows up too.
- Hardware-Confirmed Toggle: Turn antenna DC bias on or off from the browser. The button pulses until the AD600 reports the new state back; if the device doesn't confirm within a few seconds, the status bar says so.
- US & UK Standards: Toggle between US ATSC (6 MHz channels) and UK DVB-T/T2 (8 MHz channels) channel grids.
- Station Exclusion Masks: Click any TV channel marker along the frequency axis to toggle a semi-opaque exclusion overlay across the spectrum display, helping you avoid broadcast TV transmitters.
- Squeezed, ergonomic control plane designed to display all controls, antenna inputs, status badges, and the full RF spectrum chart within a single laptop or desktop viewport without scrolling.
You can operate this application entirely from an iPad, tablet, or smartphone connected to the same Wi-Fi or LAN as your computer:
- Launch the application on your computer.
- Ensure your iPad is connected to the same Wi-Fi network or local subnet.
- Open Safari on your iPad and navigate to:
(or use your computer's local IP address, e.g.
http://<computer-name>.local:8080http://192.168.1.50:8080)
In Safari on your iPad:
- Tap the Share button (the square with an arrow pointing up).
- Tap Add to Home Screen.
- Launch the app from your home screen icon to enjoy a borderless, full-screen wireless spectrum analyzer.
Connecting takes about 20–30 seconds — the AD600 needs a paced session handshake and a scan-slot claim before the first sweep arrives. The status bar shows each stage (announcing → joining → claiming scan slot → first sweep).
Only one controller can own the AD600's scan slot at a time. Close Wireless Workbench (and SoundBase's AD600 plugin, if it's scanning) before connecting; otherwise the status bar reports that the slot is held by another controller.
- Double-click
start_mac.command. - If Node.js is not yet installed on your Mac, the script will automatically offer to install it via Homebrew or open the official Node.js installer page.
- The dashboard will automatically start and open in your default browser at
http://localhost:8080.
- Double-click
start_windows.bat. - If Node.js is missing, the script will offer to install it using Windows Package Manager (
winget) or direct you to the official installer. - The application will start and open your browser at
http://localhost:8080.
- Node.js: v16.0 or higher (Download Node.js)
- Python: v3.8 or higher (Download Python)
Clone the repository and start the server:
git clone https://github.com/mbsound/AD600-Web-Based-Spectrum-Scan.git
cd AD600-Web-Based-Spectrum-Scan
node server.jsOpen http://localhost:8080 in your web browser.
- Direct Ethernet Connection: Set your computer's network interface to Link-Local / DHCP (typically
169.254.x.x) to connect directly to the AD600's primary network port. - Interface Selection: Leave the interface on All and the app picks the network interface whose subnet actually contains the AD600, whatever your adapters are called.
- Network Discovery (SLP): The app finds AD600s with Shure's SLP adverts on multicast
239.255.254.253, UDP port8427. - Session Traffic: The AD600's control session lives on UDP port
57383on the device; the device streams scan data back to a random (ephemeral) UDP port on this computer. - Firewall: Allow incoming TCP
8080(dashboard for other devices) and incoming UDP for Python (discovery adverts on8427and the device's scan stream). On macOS, answer Allow when asked about incoming connections fornodeandpython3.
The dashboard is fully self-contained: the chart library (Chart.js v4, MIT) ships in vendor/chart.umd.min.js and is served by the app, so it works on a closed show network or a direct link-local cable with no internet. (If that file is ever removed, browsers fall back to the jsDelivr CDN.)
By default every browser on the network can use the controls (connect, ranges, RBW, antenna bias). To make other devices view-only — they still see the live spectrum — start the server with:
AD600_REMOTE_CONTROL=0 node server.jsControls then work only from the computer running the server.
server.js: Node.js web server, REST API router (/api/status,/api/connect,/api/scan,/api/range,/api/rbw,/api/antenna,/api/bias,/api/iface,/api/target,/api/scan_mode,/api/antenna_name), and the single-page dashboard.engine/ad600_console.py: Core hardware communications engine managing network sessions, embedded scan initialization, parameter control, and real-time hardware telemetry emission.engine/ad600_bridge.py: Local bridge engine interfacing the console process with the web server.engine/ad600_native.py: Low-level protocol framing, packet codecs, and data stream parsers.engine/ad600_discovery.py: SLP device discovery, network interface enumeration, and subnet-based interface matching.- Engine logs and the console command file live in
~/.ad600_node_app/(console_out.log, rotated at 20 MB). start_mac.command: macOS first-launch shell script with Node.js prerequisite checks.start_windows.bat: Windows first-launch batch script with automaticwingetinstallation support.
This project is licensed under the MIT License.