Rattlegram vs POCLINK

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.

Poclink is a powerful communication app that pairs with Poclink Radios to enable global push-to-talk (PTT) communication — perfect for travel, outdoor activities, team coordination, and emergency preparedness. With Poclink, you can: Instantly talk with your group from anywhere in the world Create or join private or public communication groups Pair your Poclink Radio with the app to manage settings and users Use your phone as a PTT radio when a physical device is unavailable Share group access via QR code or 6-digit code See real-time location of your team with GPS-enabled radios Replay last messages if you missed something important Enjoy encrypted communication (AES256, RSA, E2EE) No Wi-Fi? No problem. As long as there's mobile signal, Poclink connects you — globally. Perfect for hikers, travelers, emergency teams, seniors, families, and anyone who values reliable, secure, and long-range communication. Try Poclink today and experience the future of radio.