Amateur Radio Toolkit 4+
Davey Hollenberg

 Free
 Offers InApp Purchases
Screenshots
Description
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:
Coordinate calculator  Find your latitude and longitude by entering your maindenhead square.
Grid square calculator  Find your maindenhead 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
Inductors in series  Calculate the inductance of inductors in series
Inductors in parallel  Calculate the inductance of inductors in parallel
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
Half wave coax balun  Calculate the optimal length of a half wave coax balun for a given frequency
Small magnetic loop  Calculate the optimal lengths of a small magnetic loop for a given frequency
Narrowband balun  Calculate the inductance and capacitance of a narrowband balun
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
Ratings and Reviews
Very cool
So far does everything as advertised. I like how you can figure out the distance to your QSO’s. I will also be building a antenna soon.
Nice app
Thank you for your rapid response about changing from metrics to SAE. It is nice to know that you can scroll through and find what you’re looking for. Like I said in my first review, a great app if you don’t mind converting to SAE. Now I know how to change the values of what I’m looking for. 5 stars for a great app and 5 stars for a rapid response to my review! 73
Developer Response ,
You can change to USA units by scrolling the unit on the right side of the input up or down.
This app has everything!!
Looked at all the apps and was blown away by the versatility of this one. Try out the free version and see. I purchased it because it is an excellent value. I don’t think you’ll be disappointed. Good for nubes and old hands. 73
Information
 Seller
 Davey Hollenberg
 Size
 12.7 MB
 Category
 Education
 Compatibility
 Requires iOS 11.3 or later. Compatible with iPhone, iPad, and iPod touch.
 Languages
 English, Dutch
 Age Rating
 Rated 4+
 Copyright
 © 2018 Davey Hollenberg
 Price
 Free
 InApp Purchases

 Pro version $1.99
Supports

Family Sharing
With Family Sharing set up, up to six family members can use this app.