**JAVASCRIPT CALCULATORS**

(2006)

logarithmic scale. A multiplication is the same as an addition of the logarithmic values.

But nowadays we have JAVASCRIPT CALCULATORS!

The advantage of javascript calulators is that they do work with every internet browser, independent of Windows, Lunix etc. and versions of the operating systems. Here some simple calculators that I use for most of the simple design work. But there are also some for very specific purposes so that they can be used via internet by the ones intended for.

Click here to download jscalc.zip. Unzip the files in one directory for local use on your PC.

__LCR calculations:__

- Resonance frequency of an L/C circuit, calculate F, C, L
- Impedance of a capacitor or inductor
- Two resistors or inductors in parrallel or two capacitors in series

__Electric and magnetic fields:__

- Path loss in free space for space communications
- Gain of a parabolic antenna
- K-factor of an antenna (for conversion from dBuV to fieldstrength)
- Conversion of dBm from a reception antenna to power density / fieldstrength
- Field strength of a transmitter in free space
- Magnetic field strength close to a loop antenna

__Conversions between dB's volts, ampere, watts etc.:__

__Noise:__

__Various:__

__Specific:__