RF Path vs Respondr PTT

RF Path provides propagation loss calculations for radio frequencies (RF) between 20 MHz and 20 GHz using either the Irregular Terrain model, Okumura-Hata model, COST-231 Hata Extension model, or the COST-231 Walfish-Ikegami model. The calculations are based on both electromagnetic theory and the statistical analysis of terrain characteristics to calculate the degradation of the RF wave as a function of distance and the variability of the RF wave with respect to time and space. The Irregular Terrain Model has two different prediction models. One is the Area Prediction mode which calculates propagation losses over an area where the exact terrain parameters are not known, but approximated using terrain roughness, environmental parameters and statistical parameters. The second is a point-to-point mode where specific latitude/longitude pair values are entered for both transmitter and receiver. Environmental parameters and statistical parameters are also used in this prediction mode. The results may be saved to iCloud, emailed, or posted to Facebook or Twitter. The results are in CSV format. In the Area Prediction mode a table along with a graph shows the path loss over the distance entered into the settings. The graph is viewed by rotating the device once the results table is shown. In the Point-To-Point Prediction mode a table along with a graph shows the path loss and elevation profile of the RF path.

Respondr PTT turns any smartphone, tablet or desktop into a secure, always-on two-way radio built for mission-critical teamwork. Tap once and talk live to a single colleague, a fleet or the whole organisation over Wi-Fi, LTE, 5G or even EDGE/2G. Our ultra-low-latency engine ( under 300 ms) keeps conversation natural while advanced voice compression slashes data use. Key benefits • Instant, encrypted voice — TLS transport plus optional AES-256 end-to-end encryption protect every word. • Works when coverage drops: messages queue offline and auto-deliver on reconnection. • Cross-platform — Smartphones, tablets, desktop computers, and ruggedized field hardware all share the same channels seamlessly. • Unlimited, dynamic talk-groups that dispatch or supervisors can create, rename and archive in seconds. • Location & playback: view live GPS, replay recent calls and search transcripts from the Respondr Dispatch console. • Accessory-friendly — wired headsets, shoulder mics, Bluetooth PTT buttons, vehicle mounts. • Scales instantly from a single site to global operations with no repeaters or base stations to buy. Typical use cases • Public safety & emergency response • Logistics, transit & fleet coordination • Utilities, manufacturing & field maintenance • Event security, retail & warehouse ops Why upgrade from traditional radios? Respondr preserves existing DMR, TETRA and analog investments via seamless patching, yet frees your team from range limits and costly spectrum licences. Enjoy crystal-clear audio, global reach and enterprise-grade admin controls from a single app. Start in minutes Install the app and create your organisation. Invite teammates with a QR code or link. Push, talk, done! Respondr is developed by Teleproject Srl, trusted by enterprises and governments worldwide for 24/7 mission-critical voice. Visit respondr.net to explore our web-based dispatch console, open APIs and flexible subscription plans.