TETRA Poland
TETRA radio in Poland — GPS map, call dashboard and TETRA community
Dashboard
TETRA call statistics, activity table, EBTS base station status
GPS terminal map
TETRA terminal positions in real time, GPS tracks, filter by terminal ID
TetraSpot
TetraSpot (TETRA hotspot) network status — connected clients, active groups, live voice calls
TETRA Videos
15 videos from TETRA Poland projects — TetraSpot, repeaters, apps. YouTube channel SP8MB.
TETRA Projects
See more→● TetraSpot (TETRA hotspot)
TETRA protocol stack — base station with microservice architecture. PTT voice calls, SDS messages, GPS/LIP tracking, TEA authentication, OTAR keys, SIP gateway, integration with TetraPack via TetraPoland hub.
● TLA — Tetra Light Analyzer
Web-based TETRA network analyzer on Raspberry Pi. Monitors 64 channels, live voice playback, call recording, FFT spectrum analysis, SDS decoding and terminal location tracking.
What is TETRA radio?
TETRA (Terrestrial Trunked Radio) is a digital trunked radio standard developed by ETSI. It is used worldwide by emergency services, police, fire departments, ambulance services, public transport, airports, ports, military and industry. In Poland, TETRA is the foundation of the national public-safety radio system.
The TETRA standard offers encrypted group calls (PTT — Push To Talk), individual calls (half/full-duplex), SDS text messages, GPS location reporting via the LIP protocol, packet data transmission (SNDCP) and advanced security mechanisms — TAA1 authentication, TEA1/TEA2/TEA3/TEA4 encryption and OTAR key management.
TETRA Poland is a community of Polish amateur radio operators and hobbyists developing this technology in an amateur environment — our own base station TetraSpot (TETRA hotspot), signal decoder TLA on Raspberry Pi, Android app TetraPoland, an ATAK plugin, the SIM card applet TSIM, and TETRA Remote Head for remote control of Motorola radios. Project led by SP8MB.
Frequently Asked Questions
What is TETRA?
TETRA (Terrestrial Trunked Radio) is a digital trunked radio standard developed by ETSI. It is used by emergency services, police, public transport and industry — offering encrypted group PTT calls, individual calls, SDS text messages, GPS location reporting (LIP) and packet data transmission.
How does TETRA differ from DMR?
TETRA and DMR are both digital trunked radio standards. TETRA uses π/4-DQPSK modulation and 4 time slots on a 25 kHz channel, offers native trunking, end-to-end encryption (TEA1-4), OTAR key management and more advanced network features. DMR is cheaper, simpler (2 slots, 12.5 kHz channel) and more popular among hobbyists and in local systems.
What is TetraSpot (TETRA hotspot)?
TetraSpot, also known as TETRA hotspot, is a full implementation of the TETRA protocol stack — a base station with microservice architecture. It supports group and individual voice calls (ACELP codec), SDS messages, GPS/LIP location, TEA authentication, OTAR keys, SIP/PABX gateway and integration with the TetraPoland hub. Deployed on Raspberry Pi 5 with SDR radio (USRP, LimeSDR, sxceiver).
Can I use TETRA without a license?
Commercial TETRA bands (380–400 MHz for emergency services, 410–430 MHz, 450–470 MHz) require a license from the national regulator. For amateur radio operators, experimentation is possible on the 70 cm amateur band (430–440 MHz) under a valid receive or transmit license. TETRA Poland runs an experimental base station in the 70 cm band.
How does the TETRA GPS terminal map work?
TETRA terminals send their GPS position via the LIP protocol (Location Information Protocol) to the base station. The map on tetra-poland.pl shows real-time terminal positions and GPS tracks with 30-second refresh. You can filter by terminal ID (ITSI) and date range. Reference point: SR8LST base station in Świdnik, Poland.
Who is behind TETRA Poland?
TETRA Poland is an initiative of the Polish community of TETRA amateurs and hobbyists, led by SP8MB. We develop our own TETRA base station, a signal decoder (TLA), mobile apps (TetraPoland Android, ATAK plugin) and integrations with other radio systems.
tetra-poland.pl — by SP8MB