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RF Slide Charts

RF Slide Charts
  • #: 233469
  • Price: $0.99 In Apple Store
  • Category: Utilities
  • Updated: 2011-01-26
  • Current Version: 3.0
  • 3.0 (iOS 4.0 Tested)
  • Size: 0.50 MB
  • Language: English
  • Seller: david halley
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2010 David Halley
  •  Add to Favorite apps



RF Slide Charts is a collection of graphical tools to assist in the computation of various parameters related to RF systems.

: Slide rule to calculate the relationships between voltage, power, and impedance for sine wave voltages. Conversions are provided between:

rms voltage

rms current

peak voltage

peak current

power (watts)

power (dBm)

Impedance (ohms)

Seven movable scales interact in real time providing an intuitive feel for the relationships. Actual values are displayed in engineering units on the display.

: Slide rule for calculating parameters related to standing waves on transmission lines. Conversions are provided between:

rho (reflection coefficient)

match efficiency

return loss

mismatch loss


forward RF power

reflected RF power

All three moveable scales interact to display the various interrelationships. A curser location on the scales allows for the computation and display of all parameters in decimal form.

: Slide rule for the synthesis AND analysis of resistive attenuators. Will work with balanced and single ended Pi and Tee topologies. Sliding scales contain 1% values to simplify implementation.

Four sliding scales interact to display attenuation, characteristic impedance, shunt resistance and series resistance. user can enter synthesize from att and Z0 or analyze from Rshunt and Rseries.

Designed for RF engineers, amateur radio operators, wireless technicians, and coax enthusiasts.

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Rated 5/5 based on 2 customer reviews.


5/5 stars

I use it all the time

The attenuator portion is worth it alone. Say you design a attenuator and cant find the exact resistors in your drawer. This app shows what alternate values of resistors do to the Z or attenuation value!

5/5 stars


Best dam rf calculator out there !!!!


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The information may be outdated (2011-04-30 17:02:49). For actual information go to iTunes

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