Amateur Radio Toolkit
Contains adsIn-app purchases
4.4star
2.54K reviewsinfo
100K+
Downloads
PEGI 3
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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
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
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This app may share these data types with third parties
Location, App activity and 2 others
No data collected
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Data is encrypted in transit
Data can’t be deleted
Ratings and reviews
4.4
2.35K reviews
ED MONTAIGNE
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November 22, 2024
A great tool for any ham, old or new to the hobby. It's a good quick reference source that's easy to use and understand. My XYL and I like to experiment by building antennas for ourselves and others. We like the ability to change measurement formats on the fly. We also use it as a teaching tool to show others how easy it is to build your own antennas. We are in our 80s, on a fixed income, and never buy base antennas. We build or repurpose most of our antennas, even some of our mobiles.
2 people found this review helpful
Adam Austin
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October 20, 2024
It's ok. I can get calculations for some things and conversions for others, but it's not very user friendly. I can't set it to default to a unit of measurement I prefer, or even to default to standard over metric. As far as I can tell there is no way to set anything, but they made sure to include a button to rate the app. For everything I want like say dipole length, I have to switch every parameter individually to feet or inches because it defaults to metric which is tiresome and annoying.
1 person found this review helpful
D h
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November 20, 2024
It would be good to know how much the Pro version is. It does not seem to be on the website link via the app, and there is no way I will push an Agree button for a contract, without knowing the terms and cost. Otherwise it is a simple app, does what it needs to do, and very effectively. More stars if the cost were clearer.
What’s new
Bug fixes
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About the developer
