kitedude said:
ok heres the the calculation your looking for.
say signal is 433mhz
433*10^6/3*10^8 = 1.4333.
1.4333./4 = .36
which would mean the the optimal antenna size is 36cm
Ok, here is a bit of explanation to understand what 'kitedude' has done.
Lambda (Wavelength) = Signal Frequency / Speed of light
Lambda = 433*10^6/3*10^8 meters
Lambda = 1.4333 meters
Minimum length of antenna for effective transmission should be atleast Lambda/4
Length = 1.4333/4 = .36 meters = 36 cm