RF-Toolbox Pro

RF-Toolbox Pro

iOS Universal Productivity

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Specialized on high frequency electronics for RF professionals, radio amateurs and students.

RF-Toolbox is based on the popular Electronic Toolbox from Marcus Roskosch.

This app contains some of the common tools from Electronic Toolbox but contains a wide range of additional tools, specialized for high frequency electronics, RF professionals, radio amateurs and students.

Currently RF-Toolbox consists of totally 79 tools and like with Electronic Toolbox, there are more to come over the time.


■ PCB Trace Width (Internal and external Traces)
■ PCB Trace Resistance
■ PCB Trace Impedance (various trace types e.g. Microstrip, embedded Microstrip, Symetric and Asymetric Stripline, Wire Microchip, Wire Stripline, Edge Coupled Microstrip and Stripline)
PCB Crosstalk (Microstrip and Stripline)
■ LC L/T/Pi Match calculation
■ Coax Cable calculation (Standard and individual Types)
■ Amplifier and Attenuator cascade calculation
■ SWR / Reflection / Return loss conversion
■ Power Divider (Branchline, Ratrace and Wilkinson)
■ Capacitor Plate calculation
■ RLC Parallel, Series and Circuit calculation
■ Noise Figure conversion
■ Skin Depth calculation (various materials from Aluminum to Silver)
■ Butterworth Filter (also with plot of filter chart)
■ Chebyshev Filter (also with plot of filter chart)
■ R-C, L-C, R-L High/Low/Band-Pass Filter
■ RF Units conversion (quick conversion of frequently used units)
■ Air coil inductance calculation
■ Resistors, Capacitors, Inductors in Parallel / Series
And there is much more...
■ Aktive Filter calculation tool
■ Antenna calculation tool
■ Delta Star calculation
■ Cable length / ampacity tool
■ PTC / NTC Temperature Resistance conversion
■ AC Ohms law tool
■ Zener diode circuit calculation
■ Constant current source tool
■ ASCII Table
■ Desktop calculator
■ Resistor/Capacitor/Inductor combinations tool
■ 4-20mA conversion tool ■ Passive cooling calculator
■ Audio Oscilloscope

Please check out more screen shots on my website (WEBSITE Link on the left side).

If you have questions, please feel free to contact me by using the Support button here, inside the App or on my website.

Thank you!

Marcus Roskosch

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What's New

This Update is a new Major Release including the following changes, improvements and enhancements:

■ Missing Image (e.g. DB9 Female to RJ45 in Sockets -> Cable connections) fixed
■ Wrong color assignment (e.g. in Tables -> Cable Colors -> Fiber Optic Cable) fixed.
■ In Circuit Editor, using the Trashcan Icon to delete files is now working
■ New Colors Tool (for Color conversion between different standards)

I really appreciate your help and enthusiasm supporting me and my App.

Thank you so much!

Best Regards,

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