Amateur Radio Toolkit

Contains adsIn-app purchases
4.4
2.31K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Amateur Radio Toolkit is the best app for ham radio hobbyists. It contains many calculators to help you design radios and antennas for all your projects.

Tools:
Q code - A list of common Q codes
92 Code - A list of common 92 codes
RST code - A list of RST codes
Coordinate calculator - Find your latitude and longitude by entering your maidenhead square.
Grid square calculator - Find your maidenhead square by entering your latitude and longitude
Distance calculator - Find the distance between two Maidenhead squares
Unit converter - Convert between units
Location - Find your location
Dipole antenna - Calculate the optimal lengths of a dipole antenna for a given frequency
Vertical antenna - Calculate the optimal lengths of a vertical antenna for a given frequency
Cubical quad antenna - Calculate the optimal lengths of a cubical quad antenna for a given frequency
Inverted Vee antenna - Calculate the optimal lengths of an inverted vee antenna for a given frequency
Ground plane antenna - Calculate the optimal lengths of a ground plane antenna for a given frequency
J pole antenna - Calculate the optimal lengths of a J pole antenna for a given frequency
VSWR - Convert between VSWR, Refection coefficient, return loss and mismatch loss
Three element Yagi antenna - Calculate the optimal lengths of a three-element Yagi antenna for a given frequency
Seven-element Yagi antenna - Calculate the optimal lengths of a seven element Yagi antenna for a given frequency
Wavelength frequency converter - Convert between wavelength and frequency
Air core inductor - Calculate the inductance or lengths of an air core inductor
Low pass filter - Calculate the units of an RC or RL LPF circuit
High pass filter - Calculate the units of an RC or RL HPF circuit
Ohm's law - Convert between voltage, current, resistance and power by entering two
Reactance - Calculate the reactance of a capacitor or inductor
Decibel calculator - Convert between decibel values or calculate dB by entering the power or voltage
Voltage divider - Calculate the output voltage or resistance of one resistor
Resistor Color codes - Find the resistance of a resistor by entering the colors of the bands
Resistors in parallel - Calculate the resistance of resistors in parallel
Resistors in series - Calculate the resistance of resistors in series
Capacitors in parallel - Calculate the capacitance of capacitors in parallel
Capacitors in series - Calculate the capacitance of capacitors in series
Coaxial cable - Calculate the properties of a coaxial cable
Morse code
CW abbreviations
NATO phonetic alphabet

You can upgrade to the Pro version to remove all ads and get the following features:

Half wave coax balun - Calculate the optimal length of a half wave coax balun for a given frequency
Narrowband balun - Calculate the inductance and capacitance of a narrowband balun
Small magnetic loop - Calculate the optimal lengths of a small magnetic loop for a given frequency
Full wave loop antenna - Calculate the optimal lengths of a full wave loop antenna for a given frequency
ERP and EIRP - Calculate and convert ERP and EIRP
RMS voltage - Calculate the RMS voltage
Pi attenuator - Calculate the values of the resistors by entering the attenuation and impedance
T attenuator - Calculate the values of the resistors by entering the attenuation and impedance
Inductors in series - Calculate the inductance of inductors in series
Inductors in parallel - Calculate the inductance of inductors in parallel
Doppler shift - Calculate the Doppler shift
Updated on
Nov 26, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
2.13K reviews
A Google user
November 2, 2018
This is a thoughtful collection of tools, however some of them are unfinished. You should be able to enter information on more lines of each formula, to work things backward. For instance, if I have a 28 foot long piece of wire, what frequency will it resonate if I make a loop out of it? The readability strength and tone section logo says readability tone and strength even though that's improper. There are some other little nuisances, but all in all this is a handy set of tools.
46 people found this review helpful
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Jonathan Horner
May 19, 2023
The free version is good, but the paid version is awesome. It's only a couple dollars for the paid version, and that gets you lots of goodies. One of the best apps in my radio app arsenal. The app needs an update, and hasn't had one since 2018. The coordinates calculator doesn't work properly, at least on Android 12. I love the app, but guys you have to keep up with the OS developers.
9 people found this review helpful
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Robert Thomas (Bob)
June 4, 2020
At first I was impressed with all the calculations that ART provides, but there is full page pop up adds in the free version, so I bought it to get rid of the pop-ups, the free version has these full page pop up adds that are absolutely annoying 😠😡 plus there are several of the calculators that are blocked preventing a true evaluation, not enough space to say everything I found rong with ART, but I will have to say, the coax calc is in not accurate, and it's not the only one. Not enough space.
111 people found this review helpful
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What's new

Bug fixes