Tetrapol 390-395 MHz - TETRA 424-430 MHz - frequency spectrum - Software defined radio (SDR) скачать в хорошем качестве

Tetrapol 390-395 MHz - TETRA 424-430 MHz - frequency spectrum - Software defined radio (SDR)

Tetrapol is a nationwide encrypted digital radiocommunication system used by the Police of the Czech Republic. It transmits by Gaussian minimum shift keying (GMSK) modulation with a channel width of 12.5 kHz. Downlink is in the range 390-395 MHz, uplink is 10 MHz lower. TETRA is a local digital radiocommunication system of the City of Prague that is used by the Prague Public Transit Company, Prague Municipal Police, Czech Central Crisis Staff, Technical Road Administration Prague and Eltodo. It transmits by Differential Quadriphase Shift Keying (π/4 DQPSK) modulation with a channel width of 25 kHz. Downlink is in the range of 424-430 MHz, uplink is 10 MHz lower. Location: Prague (Czechia) Hardware: RTL-SDR RTL2832U R820T2 TCXO V3 + band stop 87.5-108 MHz Software: SDR# Frequency range: 390-395 MHz and 424-430 MHz Tuning step: 12.5 kHz Channel width: 25 kHz Demodulation: narrow band frequency (NFM) 💾 Web page with SDR: https://tech.petrfaltus.net/?page=sof... 🔌 Electrical engineering:    • 🔌 Elektrotechnika / Elektrotechnik / Elect...   🚦 Crossroads of my web pages: https://crossroads.petrfaltus.net #sdr #softwaredefinedradio #frequencyspectrum #tetrapol #tetra