### Rev Rats 2.4gHz Wavelength Formula

How To Work Out Wavelengths

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Speed of light % by Frequency = Wavelength in Metres

Ie,

0.3 % 2.4gHz = 0.125 metres (12.5cm) % by 4 to get 1/4 wave....0.03125 metres or 31.25mm

Or for 1.2gHz,

0.3 % 1.2 = 0.250 (25cm) % 4 = 0.0625 or 62.5mm

0.3 was used as that is the speed of light in air.

Also try to use the full frequency Ie, 2.43 instead of 2.4 it makes a small difference to look at at quarter wave but it would be more noticable at full wave,

0.3 % 2.43 = 0.123 or 12.3cm....2mm difference

HTH.

The Reverend Rat +:-)

Ps,

% = divide by, and yes,

For the purists if you are running a length of cable you need to add a few more equations, but Heh, lets show people how to walk first :-)

## Comments

Here is a small webtool to calculate wavelengths and frequencies: ;)

http://www.wavelengthcalculator.com/

Posted by: Calculon | May 24, 2007 10:12 AM