UP vs Rattlegram

Meet the UP Messenger, your everyday communication tool that does not mine, analyze or monetize your data. Offered as part of the Unplugged application suite, the UP Messenger is designed to protect your privacy and bring the control over your data back to you. Want to communicate freely? Here are some of the main features of the UP Messenger: Message- send and receive encrypted text messages, pictures, video, audio and other files with your friends, family and colleagues. Calls- make one-on-one or conference audio and video calls. You can also share your screen. Rooms- create and manage private and public communication rooms. End-to-End Encryption- every message and call is end-to-end encrypted by default. No one except you (and the other party with whom you communicate) has access to your data, not even Unplugged. Privacy-First- the UP Messenger is private by design. We cannot and will not analyze your data, monetize it or sell it to anyone. For additional information, please review our privacy policy. GDPR- the UP Messenger fully complies with the requirements of the European General Data Protection Regulation (GDPR). Desktop client- visit our website to access the UP Messenger using your desktop web-browser. To learn more about Unplugged and how to reclaim control over your privacy, visit www.unplugged.com.

COFDMTV is based on COFDM (coded orthogonal frequency-division multiplexing) technology: - 160 ms long OFDM symbols - 6.25 Hz per sub-carrier - 1/8 guard interval - differentially encoded PSK (phase-shift keying) modulation - systematic polar codes for forward error correction Currently Modes 14, 15 and 16 are supported: Using either SPC(2048, 1392), SPC(2048, 1056) or SPC(2048, 712) with CRC32C aided SCL decoding and differential QPSK modulation for the payload. Only a bandwidth of 1600 Hz is needed and the transmission of either 85, 128 or 170 bytes take about one second with the leading noise and fancy header disabled.