2.4 GHz RADIO EXPANDER
EXOS LINK S1
A compact 2.4 GHz radio expander for EXOS ECHO. Planned USB Type-C and Bluetooth connectivity in a slim, tapered gunmetal enclosure.
- 2.4 GHz frequency
- USB Type-C + Bluetooth
- Integrated antenna
Engineered by RITYM Technologies for zero-connectivity environments. A complete hardware-integrated software ecosystem featuring Bluetooth GNSS Bridges, Offline Backcountry Topographic Mapping, Peer-to-Peer Mesh Walkie-Talkies, and Sensor-Fused Wear OS Chronographs.
EXOS LINK S1 + L1Coming shortly →
Presented in their exact architectural sequence: bridging satellite coordinates, navigating off-grid terrain, coordinating teams over mesh radio, and monitoring heading on your wrist.
Bluetooth GNSS/GPS transmitter, receiver bridge, and telemetry station. Streams raw NMEA sentences over Bluetooth SPP/BLE and injects satellite fixes into Android via Mock Location.
Standalone backcountry navigation with offline vector topo maps, MGRS/UTM military grid references, trail breadcrumb recording, and reverse backtrack guidance.
Off-grid digital walkie-talkie connecting Android devices over Wi-Fi Direct and BLE mesh with low-latency push-to-talk voice, offline text chat, and distress beacons.
Windows telemetry command center and native C# Sensor API driver bridge. Streams satellite telemetry, renders 3D compass horizons, and feeds live GPS fixes to Windows Maps.
Precision Wear OS analog chronograph watch face paired with an instant 3D tilt-compensated compass companion, dual color themes (Obsidian Teal & Heritage Orange), and ultra-low-power AOD.
EXOS GPS Transceiver is a high-precision GNSS positioning and Bluetooth serial bridge suite engineered by RITYM Technologies. It transforms your Android device into a standalone satellite GPS transmitter or external Bluetooth receiver, feeding standard NMEA coordinates into third-party mapping software.
Watch EXOS Bridge Smartphone Satellite GNSS & 3D Compass Telemetry over Bluetooth
Ever tried using a Wi-Fi tablet or laptop for vehicle navigation or marine mapping? Large displays have gorgeous screens but zero satellite hardware. Watch how EXOS Transceiver bridges raw 10Hz GNSS fixes and orientation telemetry from your smartphone to any tablet or Windows PC completely offline with zero cellular data.
A standalone offline navigation instrument engineered for zero-connectivity wilderness environments. With locally rendered vector topographic maps, military grid referencing, and reverse backtrack tracking, EXOS Wayfinder guides you safely without reliance on cellular coverage.
An off-grid digital walkie-talkie and wilderness mesh transceiver connecting Android devices directly over Wi-Fi Direct and Bluetooth Low Energy. EXOS Echo delivers low-latency digital voice and text communications where cellular coverage does not exist.
Explorers Anna & John: Deep Cavern PTT Voice Link & Peer Tracking
Witness EXOS Echo operating deep inside a subterranean geological cavern with underground water—completely isolated from cellular towers, Wi-Fi routers, internet infrastructure, or satellite GPS visibility. Teammate John tracks Anna's location on the tactical radar display at 165 meters through solid rock and coordinates seamlessly using Push-to-Talk digital voice over the autonomous mesh.
EXOS ECHO / RADIO EXPANDERS
A new hardware companion for EXOS ECHO. Two compact radio expanders, a refined gunmetal design, and planned USB Type-C and Bluetooth connectivity.
2.4 GHz RADIO EXPANDER
A compact 2.4 GHz radio expander for EXOS ECHO. Planned USB Type-C and Bluetooth connectivity in a slim, tapered gunmetal enclosure.
866 MHz RADIO EXPANDER
An 866 MHz radio expander for EXOS ECHO, with a broader enclosure and planned USB Type-C and Bluetooth connectivity. Full specifications will be announced at launch.
Product design previews. Final specifications, compatibility, pricing and availability will be announced at launch.
Ask about EXOS LINKA standalone mission-control telemetry command center and native Windows Sensor driver bridge. EXOS GPS Station connects to Android smartphones, external Bluetooth GNSS receivers, or USB serial dongles, streaming live satellite telemetry, rendering 3D compass orientation and Natural Earth vector maps, and feeding live GPS fixes to Windows 10/11 system location services and browser maps without internet.
EXOS Watchout pairs a high-altitude Swiss chronograph aesthetic with an expedition-grade 3D outdoor compass engine for Wear OS smartwatches. Designed for clean wrist orientation, it combines an official Google Watch Face Format (WFF v1) dial with seamless companion sensor telemetry.
Rigorous technical specifications across all four EXOS software platforms and the parent RITYM ESP32 hardware station.
| Parameter | 1. EXOS Transceiver | 2. EXOS Wayfinder | 3. EXOS Echo | 4. EXOS GPS Station | 5. EXOS Watchout |
|---|---|---|---|---|---|
| Primary Function | Bluetooth GNSS Bridge & Mock Location | Standalone Offline Topo Navigation | Peer-to-Peer Mesh Walkie-Talkie | Windows Telemetry Command Center & C# Sensor Bridge | Wear OS Chronograph & 3D Compass |
| Target Platforms | Android 8.0+ & Windows 10/11 | Android 8.0+ (Handheld & Tablet) | Android 8.0+ (Handheld & Tablet) | Windows 10 / 11 x64 (Native Desktop) | Wear OS 4 & 5 (API 33+) |
| Wireless Protocol | Bluetooth Classic SPP & BLE NUS | BLE Peer Radar Beacons | Wi-Fi Direct & BLE Mesh | Bluetooth SPP, Serial COM & TCP | Bluetooth 5.0 Sensor Link |
| Data Payload / Standards | NMEA 0183 (RMC, GGA, VTG, HDT) | MGRS, UTM, GPX 1.1, GeoJSON | Opus Audio, Encrypted Packets | NMEA 0183 & Windows Sensor API | Google Watch Face Format (WFF v1) |
| Third-Party Integration | Google Maps, OsmAnd, Waze, ATAK, OpenCPN | Standalone Native Vector Engine | Decentralized Standalone Mesh | Windows Maps, Edge, OpenCPN, QGIS | Wear OS Complications & Companion |
| Cloud Requirement | 0% (Strictly Local RFCOMM) | 0% (100% Offline Vector Maps) | 0% (Peer-to-Peer Mesh) | 0% (100% Local Serial Bridge) | 0% (On-Watch Sensor Processing) |
| Package Identifier | com.ritym.exosgps | com.exos.wayfinder | com.exos.mesh | exos.ritym.watchout.watchface |
Official production Google Play Store links, standalone installers, interactive user guides, and engineering documentation for all platforms.
Install the Bluetooth GNSS bridge and mock location service on your Android smartphone or field tablet.
Download the standalone offline navigation suite with vector topo mapping, MGRS grids, and trail backtrack.
Install the off-grid digital walkie-talkie and mesh communicator for low-latency PTT voice and offline group text.
Standalone Windows telemetry command center. Pairs with EXOS Transceiver on Android to stream high-accuracy GPS coordinates and Compass heading ($GPHDT) directly into Windows navigation apps.
Install the official Watch Face Format (WFF v1) chronograph dial and 3D compass companion on your Wear OS watch.
Unlike commercial navigation apps that harvest your GPS breadcrumbs and device metrics for advertising profiles, the entire EXOS ecosystem is engineered from the bare metal up for strict offline data sovereignty. All satellite fixes, sensor telemetry, voice packets, and waypoint logs execute 100% locally on your physical hardware.
RITYM Technologies and EXOS Navigation Systems operate under a strict zero-knowledge architecture. All satellite coordinates, sensor calculations, NMEA sentences, digital voice frames, and trail logs are processed entirely within physical device memory. We do not operate cloud ingestion endpoints, we do not require account logins, we bundle zero advertising networks, and we never monetize user movements.
All GNSS calculations, NMEA sentences, coordinate conversions, and backtrack logs execute 100% locally in device memory or local SQLite databases.
No commercial advertising SDKs, no Google Analytics/Firebase, and zero data brokers. We never track, profile, or monetize your movements.
Smartwatch heart rate readings on Watchout and real-time voice packets on ECHO are processed ephemerally in RAM and never written to flash storage.
All saved waypoints and trail logs remain strictly in your device storage. Reset your local database at any time with a single tap in settings.
Official package identifiers, execution targets, and verifiable zero-cloud transmission audit metrics for each application:
| Application / System | Package Identifier / Target | Target OS | Data Storage | Cloud Transmission |
|---|---|---|---|---|
| 1. EXOS GPS Transceiver | com.ritym.exosgps |
Android 8.0+ | Local RAM & SQLite | 0 Bytes (None) |
| 2. EXOS Wayfinder | com.exos.wayfinder |
Android 8.0+ | Local SQLite Only | 0 Bytes (None) |
| 3. EXOS Echo | exos.echo.mesh |
Android 8.0+ | Ephemeral RAM Buffer | P2P Radio Only (0 Cloud) |
| 4. EXOS Watchout (Watch Face) | exos.ritym.watchout.watchface |
Wear OS (WFF v1) | RAM Complication Only | 0 Bytes (None) |
| 5. EXOS Watchout (Companion) | exos.ritym.watchout |
Android & Wear OS | Local RAM Only | 0 Bytes (None) |
| 6. EXOS GPS Windows Bridge | Desktop Virtual COM Bridge | Windows 10/11 (x64) | Local COM Buffer | 0 Bytes (None) |
| 7. RITYM ESP32 Console Stations | ESP32-S3 Hardware Stations | FreeRTOS Embedded | Ephemeral Hardware Bus | 0 Bytes (None) |
Compliant with Google Play Developer Program Policies and Microsoft Store Application Verification standards:
| Permission Name | Applicable App(s) | Technical Necessity | Data Retention & Handling |
|---|---|---|---|
ACCESS_FINE_LOCATIONACCESS_COARSE_LOCATION
|
Transceiver, Wayfinder, Watchout |
Required to read on-device GNSS satellite fixes (latitude, longitude, altitude, speed, and heading) for NMEA sentence generation, coordinate projection, and trail plotting. | Processed strictly in RAM in real time. Never logged to external servers; never shared with third parties. Waypoints stored only in on-device SQLite. |
ACCESS_MOCK_LOCATION |
Transceiver | Enables Receiver Mode to feed high-precision satellite coordinates received via Bluetooth directly into Android's system location provider. | Injected solely into the local Android OS location subsystem so external mapping apps (ATAK, Google Maps, OpenCPN) can read external fixes. Zero cloud transmission. |
BLUETOOTHBLUETOOTH_CONNECTBLUETOOTH_SCANBLUETOOTH_ADVERTISE
|
Transceiver, Wayfinder, ECHO |
Establishes local point-to-point RFCOMM/SPP and BLE serial bridges with paired external GNSS hardware receivers, marine plotters, PC COM ports, and peer radar beacons. | All data packets remain on local short-range radio connections. No data is stored externally or routed across internet infrastructure. |
RECORD_AUDIO |
ECHO | Captures half-duplex digital voice only when the user actively presses and holds the Push-to-Talk (PTT) interface. | Audio frames are encoded locally into real-time packets and streamed peer-to-peer over Wi-Fi Direct/BLE mesh. Audio is never recorded to disk, never transcribed, and never sent to any server. |
BODY_SENSORS |
Watchout (Wear OS) | Accesses the smartwatch photoplethysmogram (PPG) sensor to display current beats-per-minute (BPM) on the 3 o'clock subdial of the watch face. | Processed ephemerally in watch memory. Sensor data is never saved to flash memory, never synced to Google Fit or Health Connect, and never transmitted remotely. |
FOREGROUND_SERVICE |
Transceiver, Wayfinder, ECHO |
Maintains continuous satellite streaming, trail breadcrumb recording, or mesh radio listening when the app is minimized, accompanied by a persistent notification in the Android status bar. | Executed purely to prevent Android OS process death during active outdoor navigation sessions. |
EXOS Watchout strictly adopts Google's declarative Watch Face Format. The ambient Always-On Display (AOD) maintains an On-Pixel Ratio (OPR) below 2.5%, completely eliminating display burn-in and background battery drain while providing zero vector for unauthorized background code execution.
Because all waypoint markers and trail records reside exclusively in your device's private SQLite storage, you can purge everything at any time by tapping Clear Local Database or by uninstalling the application. No user account records exist on remote servers to delete.
Formatted specifically for compliance audits with Google Play Developer Program Policies, the Wear OS Health Policy, and Microsoft Application Developer standards.
