nOversight WiFi Analyzer vs PhosphorCalc

Visualize, test, and troubleshoot Wi-Fi coverage using only your iPhone or iPad. nOversight helps you find dead zones, weak signal areas, roaming problems, and unreliable connectivity at home, at work, or anywhere you connect. Create live Wi-Fi heatmaps as you walk through buildings, offices, venues, homes, or outdoor spaces — with no specialist hardware required. Whether you're improving video calls, validating a deployment, checking wireless coverage, or diagnosing poor performance, nOversight gives you clear insight into how your network is really behaving. SEE YOUR WI-FI AS YOU MOVE Watch your signal quality and performance update live as you walk from room to room, floor to floor, indoors or outdoors. Quickly identify where your Wi-Fi does and does not reach, including: • Dead zones • Weak coverage • Roaming problems • Areas with strong or poor performance Used daily by home users and Wi-Fi professionals. AR VIEW & MAP VIEW • AR View: Hold up your phone and visualize Wi-Fi performance against the real world while capturing problem areas. • Map View: Walk a floor plan or outdoor area and build a live Wi-Fi coverage view as performance changes around you. Perfect for homes, apartments, offices, cafés, schools, warehouses, hospitality venues, and outdoor environments. LOOK BACK IN TIME Wi-Fi problems are not always happening while you're actively testing. nOversight can organize recent system connectivity history into a clear timeline, helping you investigate what happened during the last hour and where problems occurred. Find: • Which network caused the issue • When signal quality dropped • Where roaming occurred • Which access point your device selected • How connectivity changed over time CLEAR TECHNICAL DETAIL — WHEN YOU WANT IT • Real RSSI (dBm), signal quality & data rates • Channels, bandwidth & Wi-Fi generation • Roaming behaviour & access-point transitions • Mobile network connectivity insights • Access-point level visibility beyond the SSID name • Wi-Fi 6 / 6E / 7 environment awareness KEY FEATURES • Live Wi-Fi analyzer and signal monitoring • Wi-Fi heatmap and coverage visualization • AR and map-based site survey tools • Historical connectivity troubleshooting • Indoor and outdoor wireless analysis • Privacy-first design with fully on-device processing • No accounts, cloud sync, or external servers • Works anywhere your iPhone or iPad connects HOW IT WORKS Your device already records wireless connectivity information. nOversight helps securely collect, organize, and interpret it into practical insight. All processing happens entirely on your device. No data leaves your phone or tablet. No cloud processing. No accounts required. SUBSCRIPTIONS Live signal monitoring is free for short sessions. Pro users can capture, import, and review high-level recent Wi-Fi history. Analyzer — £2.49/year No time restrictions Advanced diagnostics including roaming timelines, access-point level analysis, signal history, histograms, and detailed Wi-Fi decision logic for enthusiasts, installers, and IT professionals. Pro Analyzer — £3.99/month or £29.99/year Save and restore your recordings. Read in diagnostic logs for access to additional professional details such as retries and congestion Terms of Service: https://www.numerousnetworks.co.uk/terms-and-conditions/ Privacy Policy: https://www.numerousnetworks.co.uk/privacy/

RF and antenna calculator for amateur radio operators. Ten standalone calculators on a clean, fast interface. Numbers in, numbers out. No network, no accounts, no subscriptions. DIPOLE Calculate half-wave dipole, quarter-wave vertical, and full-wave loop antenna lengths for any frequency. Adjustable velocity factor for different wire types. Results in both metres and feet. WAVELENGTH Bidirectional frequency and wavelength conversion. Enter either value and the other is derived instantly. Identifies standard amateur band allocations (ITU Region 1) automatically. PATH LOSS Free space path loss calculator with approximate S-meter reading context. Supports kilometres and miles. Result can be imported directly into the Link Budget calculator. COAX LOSS Feedline attenuation for seven common cable types: RG-58, RG-8X, RG-213, LMR-240, LMR-400, Aircell 7, and Ecoflex 15. Uses log-linear interpolated manufacturer data across frequency. Shows power delivered to antenna from a 100W transmitter. Result can be imported into the ERP calculator. ERP / EIRP Effective radiated power accounting for transmitter output, feedline loss, and antenna gain. Supports both dBi and dBd gain input. Shows feed power, EIRP, and ERP in watts and dBW. SWR Standing wave ratio from forward and reflected power readings, or direct SWR entry. Calculates return loss, mismatch loss, reflection coefficient, and power delivered. Colour-coded SWR indicator: green for good, amber for marginal, red for poor. POWER Ohm's law solver: pick any two of voltage, current, resistance, and power — the other two are calculated. Separate dB conversion section converts between watts, milliwatts, dBm, and dBW. LINK BUDGET Complete end-to-end signal path analysis. Enter TX power, feedline losses, antenna gains, and path loss to see received signal power in dBm and microvolts, S-meter estimate, and link margin above noise floor. Selectable receiver bandwidth: CW, SSB, FM, or Digital. LC RESONANCE LC tank circuit calculator. Solve for resonant frequency, inductance, or capacitance given the other two values. Displays inductive and capacitive reactance at resonance as a cross-check. IMPEDANCE L-network impedance matching calculator. Given source and load impedance at a target frequency, calculates component values for both low-pass and high-pass matching network topologies. Shows Q factor and network orientation. FEATURES All calculations update live as you type Tap any result to copy it to the clipboard Cross-tab import: pull coax loss into ERP, path loss into link budget Every calculator includes built-in reference notes explaining the formulae Clear and reset controls on every tab Decimal keypad input throughout No internet connection required — everything runs locally No tracking, no analytics, no data collection Part of the Phosphor radio suite alongside PhosphorRTTY, PhosphorCW, PhosphorHertz, and PhosphorSol.