All CETUS-RF browser-based RF engineering tools, planners, and product pages — no installation, no login. Open any tool and start calculating.
Complete RF link budget for point-to-point microwave paths. Enter Tx power, antenna gains, frequency, and distance to get received signal level, SNR, and QSO viability verdict.
Convert Maidenhead grid squares to lat/lon, compute great-circle distance and bearing between any two grid squares. Supports 4, 6, and 8-character precision.
Calculate antenna pointing heading from one grid square to another. Shows bearing in degrees and compass direction. Useful for pre-pointing dish antennas before a contact.
Calculate gain, beamwidth, and f/D ratio for offset parabolic dish antennas. Compute feed pointing angle for proper illumination of the reflector at any frequency.
Full design tool for longitudinal shunt slot arrays in standard waveguides WR-28 through WR-137. Computes slot dimensions, spacing, gain, HPBW, and exports machine-ready files.
Full collaborative planning tool for microwave contest and activity days. Add all participating stations with complete technical profiles, plan QSOs on an interactive map with live link budgets, terrain analysis, and real-time chat.
Upload any ADIF log file to visualize all QSOs on an interactive dark world map with geodesic great-circle paths, per-band color coding, and click-to-popup callsign / grid detail.
Line-of-sight analysis and terrain cross-section profile between any two grid squares or coordinates. Fetches real SRTM elevation data and plots Fresnel zone clearance.
Live aircraft scatter analysis using real ADS-B flight data. Shows which aircraft overhead can serve as scatter reflectors for your microwave path at the moment.
Real-time rainscatter propagation assessment using live weather radar and precipitation data. Shows active rain cells that may support microwave rainscatter QSOs.
Calculate ISS (International Space Station) microwave reflections for EME-style bounce contacts. Computes pass geometry, reflection angles, Doppler shift, and optimal timing windows.
Real-time meteor shower planner and QSO scheduler for meteor scatter contacts. Shows active and upcoming showers, optimal skeds between two stations, and burst probability by time of day.
Real-time positions of the Sun, Moon, and five planets using full Meeus orbital mechanics. Az/El from any grid square or lat/lon, rise/set/culmination times, Moon phase, and live sky simulation — essential for EME planning and solar noise calibration.
Searchable database of active microwave beacons worldwide. Filter by band, region, or grid square. Plot beacon locations on an interactive map and estimate path loss to your location.
Product page for the HAMdaptor™ dual microphone switch for serious operators. Passive, noise-free audio routing. Custom callsign engraving at no extra cost. Built in the USA.
Full project page for the DCPM — a custom self-contained computing and signal-processing engine for deep-space science missions. Dual-OS (Linux + Windows simultaneously), 3-lb ruggedized enclosure.