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Old 8-Jan-2012, 2:41 AM   #2
GroundUrMast's Avatar
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
For FM reception in motion, the stock 'whip' antenna on most vehicles is at or near resonance and is a very good antenna for the application. In theory you could look at 5/8th wave and collinear antennas. Both of these options have the potential to lower the angle of radiation closer to the horizon which would give you a few dB of gain compared to the 1/4 wave over ground plane (the typical stock automotive FM antenna concept).

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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

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