Quote:
Originally Posted by EscapeVelocity
Yeah, Ive already noticed that. Holl_ands gave the nod to KYES, because he reduces the size appropriately by 5% for a dipole vs single rod in free space (or something like that).
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I eluded taking a side but I go with Kyes. Here is the reason. I have built more dang wire dipoles for everything from 3 MHz through 146 MHz. I always used the following for each side of the dipole.
(c/Freq)/4 * .95 = 1/4 wave in wire
Where c is the speed of light at 300E6 meter/sec
Frequency is in Hz
Answer is in meters.
(To make this easier use 300 for the speed of light and frequency in MHz and exponents then subtract out of the division).
For the low bands (3 - 30MHz) you can just about cut one, hang it at least 1 wavelength in the sky and it will be tuned. Closer to the ground you usually have to trim them a little.