SignalPlanner
RF Coverage & Link Planning
About
What's New in SignalPlanner
5.32
September 28, 2026
This is a huge update. Weather-aware coverage, an HF toolkit, real antenna patterns, and a full relay and route planner. Still on your iPhone, no account. Weather-aware coverage • Coverage can follow real tropospheric refraction instead of a fixed standard atmosphere. • Reliable, typical, and favorable maps over a 24/48/72-hour forecast, plus a point-in-time map you can set to any hour. • Ducting is flagged when conditions may stretch range unpredictably. HF and space weather • Space Weather & Band Conditions: solar indices, HF band openings, and aurora / sporadic-E. Free, and cached for offline use. • Skip-zone checker for two stations, with NVIS guidance when a path is too short for skywave. • Full model (Experimental): an on-device ITU-R P.533 prediction for reliability, SNR, LUF, and multi-hop. It returns a complete result; “experimental” means it is not yet checked against the ITU reference. Antennas, links, and bands • Import real antenna patterns (MSI / Planet). Directional gain shapes coverage maps and point-to-point links. • Link-budget PDF: path-loss breakdown, fade margin, availability, and a terrain profile with Fresnel clearance. • Band sweep: compare several frequencies from the same site and see which covers the most area. Check a prediction • Measured vs Predicted: import a survey (CSV or JSON) or drop manual signal-report pins, compare them with a coverage map, and get an advisory calibration offset. This never rewrites the map. iOS cannot read live signal strength, so entry is import or manual only. Reach, relays, and routes • Suggest a map range from your antennas’ radio horizon. Coverage maps now run out to 150 km. • Repeater Chain finds the fewest hops between two sites, including a staging hop when the repeater cannot reach as far as the base. • Route coverage plans a repeater chain along a path and shows that chain’s margin, plus any uncovered tail. • Repeater(s) reaches up to three far sites, for fewer hops or more area, and must cover every pin you select. • Best Site can target specific pins, says when no one site covers them all, and can propose relays for the rest. • Mobile role: downlink, uplink, or two-way. Two-way counts a spot only when both directions close. Routes have the same choice. • Carve a map to an azimuth and inner radius. Outside the sector is “no data,” not “no signal.” • Compare a saved map with the other model (ITM Longley-Rice or FSPL + Clutter) without replacing it. • Very Fine terrain (about 90 m). Long relay corridors load terrain on a finer grid than before. Read the map • Rainbow and color-blind-safe palettes, plus optional smoothed edges. • A land-cover badge shows whether clutter is in the prediction. • Tap anywhere for a link from the transmitter: margin, level, distance, pass/fail, and an S-meter. Nudge either antenna by 0.1 m. • Save, rename, and print ruler paths with lat/long and MGRS, including legs, direction, and area. • Find the highest and lowest terrain on the loaded map. • Branch a plan onto another site without losing the original. • Unit roles (base, vehicle, handheld) with matching map icons. • Jump to an address, lat/long, or MGRS. Day to day • In-app User Guide, and a Free vs Pro screen before you subscribe. • Greyed-out actions explain why, with valid ranges in Help. • The map opens around 2 km. A pin or your location zooms to about 50 m. • Center on My Current Location is a temporary red X, not a saved pin. Pins can start at 0. • An eye shows which saved repeater plan is on the map. • VoiceOver labels on the denser screens. Clearer maps • Printed coverage stays square, with no north–south stretch. • Each cell is sampled, so the false weak stripe through the transmitter is gone. Run Apply again on older maps. • Land cover lines up with the elevation grid. On older fine maps, re-ingest land cover, then Apply. • A route no longer reports coverage past the terrain that was loaded.
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