June 2006 Archives

How To Work Out Wavelengths
---------------------------

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 :-)

About this Archive

This page is an archive of entries from June 2006 listed from newest to oldest.

May 2006 is the previous archive.

December 2006 is the next archive.

Find recent content on the main index or look in the archives to find all content.