[OZAPRS] 2M 1/4 Wave antenna
Andrew Rich
vk4tec at tech-software.net
Sun Jan 14 19:44:54 EST 2007
Searched for ages on google, looking for a 1/4 wave vhf calculation for
145.825 MHz
I remember that the 45 degree radials had to be a ratio longer or shorter
than the vertical element.
Assuming speed of light at 300
lambda = 300 / freq
lambda = 300 / 145.825 MHz
lambda = 2.05 M
1/4 lambda = 2.05 M / 4
1/4 Wave antenna = 0.5143 M
1/4 Wave antenna = 51.43 cm
Cheers
-----------------------------------------
Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at tech-software.net
web: http://www.tech-software.net
Brisbane AUSTRALIA
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