TetraSpot
TETRA base station (hotspot)
A homebrew TETRA base station that fits on a desk. The first amateur project in the world to bring a home TETRA base station to full functionality.
What it does
- Group and individual calls like on a real network
- Messaging and terminal locations on a map
- Internet access and browsable pages straight on the radio
- Bridges your radios into the nationwide TetraPoland network
- Runs on a single small computer
base stationvoicemessagingGPS
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Szept
Secure messenger with end-to-end encryption
A private messenger — HD voice calls (one-to-one and group) and text messages, all end-to-end encrypted. You host the server yourself and it only relays encrypted data — it never knows the content of your calls or messages.
What it does
- HD-quality voice calls — one-to-one and group, both sides heard at once
- Text messages 1:1 and group, delivered even when the recipient is offline
- End-to-end encrypted always — and resistant to quantum computers, for confidentiality that lasts
- Keys are created on your phone and never leave it
- Verify a contact with a QR code or a code read aloud — certainty about who's on the other end
- An alert when a contact's keys change — e.g. after switching phones
- Screenshots and screen recording blocked — like in banking apps
- Your own server, no third-party companies in the data path
messengerend-to-end encryptionHD voiceself-hosted
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Multi-Radio
Multi-system radio — nine systems in one
One device instead of a shelf of radios: analog FM, TETRA, DMR, P25, D-STAR, YSF, M17, and now also NXDN and dPMR (the last two not yet verified against a commercial radio). The first software-defined terminal with such modest hardware requirements in the amateur radio world — no factory handset costing thousands.
What it does
- Nine systems, switched with a single button — the new one ready in about a second
- Registers on the network, joins talkgroups, transmits and receives voice
- Text messages with delivery reports and position reports on a map
- Cycles through the systems on its own and stops wherever someone is transmitting
- Driven from a touch front panel, your phone or a browser
terminalTETRADMRP25D-STARYSFM17NXDNdPMRFM
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SwMI dla stacji Motorola
A homebrew core for professional EBTS, MBTS and MTS base stations
Professional Motorola EBTS, MBTS and MTS base stations without the vendor’s core. The station’s BR (Base Radio) works for us with the TSC (Site Controller) eliminated: homebrew software talks straight to it, brings it up and carries all the traffic — and the station works in the TetraPoland network with the whole package that comes with it. On a real EBTS station since September 2026, with the original controller disconnected and two Base Radios as one two-carrier cell.
What it does
- The BR (Base Radio) works for us with the TSC (Site Controller) eliminated — in EBTS, MBTS and MTS stations
- Transmitter bring-up, keying and supervision with no operator
- Two carriers in one cell — two Base Radios under one controller
- Works in the TetraPoland network with the whole package that comes with it — group and individual calls, locally and network-wide, calls out to a phone
- Radio positions and the station panel in a browser
- The same stack that drives TetraSpot
Motorola EBTSMBTSMTSDimetrabase station
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TLA — Tetra Light Analyzer
TETRA network analyzer in the browser
The whole TETRA network at a glance without installing anything — open a browser and it's all live.
What it does
- Tracks 64 channels at once — see who's talking to whom
- Live listening and automatic call recording
- Signal spectrum and reception quality in real time
- SDS messages and terminal positions on a map
- Print-ready reports from a monitoring session
- An Android build — the same analyzer without a computer
monitoringrecordingspectrummap
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TetraPoland — Android
A TETRA radio in your phone
Full TETRA radio functionality on an ordinary phone — over cellular or Wi-Fi. Released and in daily use on the TetraPoland network. Since 1.8.3 the phone also goes straight into the amateur digital networks, with no hub of ours in between.
What it does
- Group and individual calls with a PTT button
- Audio over a Bluetooth headset, including its hardware buttons
- Text messages and talkgroup scanning
- Your position shows up on the TetraPoland map
- Networks alongside TETRA: BrandMeister, DMR Homebrew (XLX, FreeDMR, DMR+, HBlink, TGIF), YSF, FCS, M17 and NXDN
- Groups 1–90 always stay; above them the chosen network decides
- Said plainly: transmit on YSF, FCS and M17 has not been tried on the air yet, and NXDN only listens for now
mobilePTTmessagingGPSBrandMeister
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Sieć TetraPoland
The Polish TETRA community
A nationwide network and community of TETRA enthusiasts that I co-run.
What it does
- Calls across the network shown live
- Real-time GPS map of terminals
- All our projects in one place
- An open community of radio amateurs
communitynetworkGPS mapdashboard
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Hardware & firmware
MotoMap
Navigation on the motorcycle's screen
An app that shows the map, navigation and ride data straight on a BMW motorcycle's built-in screen — you operate it with the wheel by the handlebar, without reaching for your phone. Maps and routing run on their own data, working even where there is no signal.
What it does
- Map and navigation on the motorcycle's built-in screen
- Operated with the wheel by the handlebar — usable in gloves, no phone needed
- Own maps and routing — works offline, with no signal too
- Recording and replaying the routes you have ridden
- Weather and phone sensor data in one view
motorcycleBMWnavigationmapsoffline
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