Ham Engineering vs Morse Code Trainer, CW Decoder

Ham Engineering is the engineering bench for amateur radio — antenna and feedline maths, circuit design, propagation and a deep reference library, all completely offline. No account, no ads, no tracking, and not a single network call. ANTENNAS • Half-wave dipole with adjustable k (velocity) factor, quarter-wave and 5/8-wave verticals, ground-plane radials, end-fed half-wave, random wire, full-wave loop and a 3-element Yagi estimator • Matching: L-network, Pi-network, quarter-wave transformer, balun/unun ratios and stub matching • Antenna Lab — a live elevation radiation-pattern plot with directivity, realized gain, takeoff angle, beamwidth, front-to-back, mismatch loss, feedline loss and system gain, each explained • Grid Compass that rotates with your phone, showing beam bearing and distance from your grid to a target grid • Antenna gallery — every common type drawn as scalable vector art, with what it is, what it is for and what to watch out for FEEDLINES & RF • Coax loss by cable type, frequency and run length; velocity-factor electrical length • SWR from forward/reflected power, plus return loss and mismatch loss • Antenna A/B comparison and receiver noise-floor estimation • RF power conversions: dBm, watts, ERP and EIRP • Propagation: free-space path loss, radio horizon and Fresnel-zone clearance • NanoVNA and tinySA quick-start guides, and a coax + connector gallery CIRCUITS • Ohm's law, series/parallel resistance, voltage dividers, RC and RL time constants • Reactance, LC resonance, Q and bandwidth, stored energy • RC and LC filter cutoffs, a constant-k Pi/T filter designer, a bandpass/notch calculator and a Butterworth low-pass designer • Resistor, capacitor and inductor code decoders, an AWG wire table and a 555 timer calculator • A live RLC resonance lab and a 50-part component gallery REFERENCE & EXTRA • Filterable amateur band plan for ITU Regions 1, 2 and 3 • Unit converters including watts, dBm and microvolts • Comparison tables for coax, connectors, antennas and batteries • Tools-and-gear and rig-controls galleries — what every knob and button is called across manufacturers • Maidenhead grid tools and great-circle beam headings • 300+ searchable tips, 40+ formulas, a rich glossary and a constants reference • Curated external links to major retailers, brands and references BUILT FOR THE BENCH • Nearly 200 illustrations drawn as scalable vector art — nothing to download, everything sharp at any size • Works fully offline. The app makes no network calls at all • Export any panel or diagram as a theme-aware image to share or file • An (i) explanation on every panel — this is a tool and a guide, not a quiz • Light and dark themes, adjustable font size, weekly tips and in-app version history • Your callsign, grid and email stay on your device and are never transmitted PERFECT FOR • Licensed operators designing, building and tuning antennas • Anyone putting up a first dipole or vertical and wanting the numbers right • Homebrewers and kit builders working with filters, matching and components • SWLs and newcomers who want the reference material without the exam drill • Club elmers and anyone teaching antenna and RF fundamentals PRIVACY • Your callsign, grid and email are stored only on your device. • No account, no sign-up, no ads, no analytics SDKs, no advertising ID and no tracking of any kind. 73 de A41UX Yousuf AL Balushi — Unixeer, Oman

Morse code becomes far more useful when you can do more than look it up. MORSE gives you one clean workspace to translate a message, hear or send a signal, build real listening and keying skills, and keep the tools you need close at hand. Translate and send right away • Convert text to Morse code and Morse code back to text • Work with seven writing and code systems: International Morse, Chinese telegraph code, Japanese, Korean, Russian, Greek and Arabic • Send signals with sound, haptics, the flashlight or screen flashes • Choose playback speed and carrier tone, or start with ready-to-use common phrases Learn to hear it—not just read it • Follow 174 structured lessons across 29 units and six activity types • Build skills in Koch order through recognition, listening, comparison, sending, applied practice and challenges • Progress from characters and numbers to punctuation, prosigns, Q codes, callsigns and complete QSOs • Take a free 15-question daily test shaped by your current progress and previously learned weak points • Track accuracy, best scores, course progress and practice streaks • Pro unlocks the remaining 150 lessons, focused listening, Head Copy and weakness drills, plus full WPM, tone and Farnsworth controls Read real signals when you need to • See a provisional dot-dash and text preview while recording; after you stop, MORSE analyzes the full recording and produces a corrected result • Import audio, video or images containing Morse signals • Let MORSE analyze carrier tone and timing, with status and confidence feedback • Core media analysis runs on your device instead of sending signal content to a cloud recognition service Communicate, save and share • Enter dots and dashes with a Morse key and see the decoded text as you type • Exchange Morse messages directly with another nearby device; Pro adds optional 4-digit PIN content protection • Keep history and favorites, then reopen an item to continue editing • Export text and Morse signal cards for free; Pro adds WAV audio export • Import or export a local backup of your training progress Start free. Unlock Pro once. MORSE is free to download. Core text conversion is unlimited, and basic signal output, character references, daily tests, the first 24 lessons and nearby communication without a PIN are free to use. Microphone, audio, video and image recognition share one successful free experience. There are no ads, subscriptions or automatic renewals. MORSE PRO is a one-time non-consumable purchase that permanently unlocks Pro features. Your localized price is shown by the App Store, and previous purchases can be restored. New ways to practice Practice receiving Morse with keyboard answers and character-by-character feedback in Pro. Try straight-key input for free to work on the timing of dots and dashes.