Toolkit for amateur radio operators and RF
The app provides tools for amateur radio operators and RF hobbyists. It offers antenna-length calculators, frequency-to-wavelength conversion, VSWR and ERP calculators, and signal utilities for DTMF and Morse code.
Showing 1–20 of 1,000 ranked alternatives.
Electronial
Calculate coordinates and grid squares for projects
Offers calculators for designing radios and antennas. Users can find latitude and longitude from a maidenhead square or vice versa. Calculate distances between squares. Convert units. Locate current position.
Pulsely Consulting Limited
Calculate effective transmission power easily.
The app calculates effective transmission power using radio transmitter and antenna combinations. It determines the equivalent isotropically radiated power based on observed peak power density and maximum antenna gain.
Siu Yuen Ho
Calculate, measure, and test components
Calculate component values for desired corner frequency, resistance, capacitance, or inductance. Find combinations of resistors, capacitors, and inductors. View detailed calculations and formulas. Export results. Remove ads with PRO version.
Century Light LLC
Graph functions and solve equations
Create and analyze mathematical functions with interactive graphing. Manipulate equations, zoom, and pan graphs. Access a clean interface with logically placed tools. View detailed error messages and scroll through results without navigation clutter.
An Truong
Calculate and graph mathematical expressions
Solve equations and graph functions with advanced math support. Perform calculus operations and matrix calculations. Customize settings for precision. Access detailed tutorials and a comprehensive user manual.
Peter Bohl
Align antenna direction and check for obstacles
Align antenna by selecting a and viewing horizontal and vertical alignment directions. Check for obstacles affecting reception. Choose from over 400 satellites.
Simple Machine, LLC
Solve puzzles with a
Solve puzzles by performing math operations on a . Navigate through levels to defeat the Clicky virus. Use a to convert numbers to letters and interact with portals. Track progress and complete challenges.
Simple Machine, LLC
Play with numbers and portals
Solve math problems by adding, subtracting, converting, and reversing numbers. Manipulate values through portals. Use an LCD display for complex equations. Interact with a snarky assistant for guidance. Adjust button sensitivity for precise input.
Calculated Industries, Inc.
Browse boating charts and images
Access boating information with detailed charts, graphs, and illustrations. Look up formulas, safety guidelines, and equipment specifications. Search for content by topic or use the table of contents. View 800+ images and diagrams for visual .
Sergey Vavaev
Access theory, diagrams, and calculators offline
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
Medicon Apps
Calculate scores, review scales, access classifications
Access clinical calculators for patient assessments. Retrieve scores like CHADS2 and Glasgow Coma Scale. View high-quality images for reference. Look up classifications and scales. Store and retrieve critical information quickly.
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.
HUBER + SUHNER AG
Convert RF values and compare cables
Calculate RF parameters such as impedance, wavelength, return loss, and signal delay. Convert between related values. Compare RF cable and assembly configurations. Access technical specs like insertion loss and power rating.
Dana Peters
Explore in 3D view
Explore the solar system with 3D views of and the moon. Locate celestial bodies using 2D and 3D sky maps. Check visibility times for . Rotate a 3D globe to view planetary details.
Zipo Apps Ltd.
Find towers and track strength
Navigate to cell towers using a built-in compass. View precise locations and details. Plan travel routes based on strength. Troubleshoot weak signals by identifying nearby towers. Optimize mobile setup with insights.
BEN J WRIGLEY
, practice, and master skills
Digital fundamentals through 15 interactive lessons and activities. Use shutter speed, ISO, and aperture calculators to adjust settings. Explore animated camera models to understand or mirrorless functions.
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