HAM Test Prep Lite vs Scientific Altimeter

Includes the General Question Pool effective July 1, 2023! NOTE: This "Lite" version contains only 2 of the 10 subelements in the question pool. Click the 'Buy Now' link in the app to get the FULL version. Upgrade your HAM license from Technician to General! With the elimination of the Morse Code requirement, there is no reason not to upgrade your license to gain additional privileges! Amateur Radio License exams are composed of questions from a pool. Use this application prior to taking your exam to review and practice all possible questions. Then, test your knowledge with practice exams! After completing your first practice exam, the question pool screen will display your proficiency in each question group for all practice exams you have completed. You may choose to receive immediate feedback on right and wrong answers when taking a practice test. On practice tests, questions in a group will not be repeated until all of them have been used. Some questions require you to review associated Figures. These figures may be zoomed and panned on iPhone/iPod touch. FCC rule text is viewable within the application. All sections can be browsed from the main screen. Additionally, for questions where rule sections have been identified, the rule text can be viewed on the question screen when studying the question pool or reviewing test results. An in-progress practice test can be resumed if you exit the test or the application. Current General question pool is valid through June 30, 2027. This "Lite" version only contains questions from subelements G1 and G7. Versions of this application for both the Technician and Extra license classes are also available. This app has these additional features: • Accessibility option for vision-impaired users to exclude questions with figures • Dark mode support • Portrait and Landscape support on iPad • Swipe gestures to navigate between questions • Tap on answer to select it • Double-tap or use pinch gesture to zoom Figures on iPhone and iPod touch • Buttons to skip to next/previous wrong answer in test results • ARRL question number displayed on practice tests • Configurable Test Settings • Optional randomizing of test answers • Optional auto-advance during test

SCIENTIFIC ALTIMETER Nationwide One-Touch Calibration The only iOS altimeter with nationwide one-touch calibration using USGS ground-truth elevation data. Tap once, get instant calibration anywhere in the United States. No manual entry, no guesswork. Designed for field researchers, GIS professionals, educators, and students. KEY FEATURES - NATIONWIDE ONE-TOUCH CALIBRATION Automatic USGS 3DEP calibration anywhere in the US with cellular or WiFi - DUAL SENSOR COMPARISON Record GPS altitude and calibrated barometric altitude with accuracy estimates - MANUAL CALIBRATION Enter known elevations for offline fieldwork or international use - SMART RECALIBRATION Time and pressure-change monitoring maintains accuracy during long field sessions - PROFESSIONAL EXPORTS CSV, GPX, KML, and GeoJSON formats ready for GIS analysis - WORKS OFFLINE GPS-only mode and manual calibration support remote fieldwork WHY ONE-TOUCH CALIBRATION MATTERS Other altimeter apps require manual elevation lookup from maps or uncalibrated pressure readings. Scientific Altimeter automatically queries USGS elevation at your GPS coordinates and calibrates your barometer to ground truth. One tap, instant accuracy. SCIENTIFIC APPROACH Barometers measure pressure changes precisely but need calibration. Weather systems cause drift. Scientific Altimeter uses USGS 3DEP data for ground-truth reference and monitors pressure changes to suggest recalibration when needed. Full metadata in exports enables reproducible fieldwork and quality assessment. IDEAL FOR - Watershed and terrain surveys - Environmental monitoring - GIS ground-truthing - Educational field exercises - Ecological transects - GPS accuracy verification DATA QUALITY Each point includes timestamp, coordinates, GPS altitude, barometric altitude, and accuracy estimates. Compare GPS (stable long-term) with barometer (smooth short-term) for optimal results. PRIVACY - All data stored locally - No registration required - No tracking or ads - Location used only for GPS and USGS queries - Open methodology REQUIREMENTS iPhone 6 or newer, iOS 17.0+, location permission, internet for USGS calibration Created by a GIS specialist for the research community. Free forever. The only altimeter with true nationwide one-touch calibration.