unusual challenges (read ``problems''). The wavelength at 187 kHz is 1 mile,
and a quarter wave is 1,320 feet! It gets worse. At 137 kHz where the
wavelength becomes 1.3 miles and a quarter wave vertical would reach up 1800
-feet. Worse yet at 76 kHz the wavelength is 2.46 miles.
+feet. Worse yet at 76 kHz the wavelength is 2.46 miles.{1}
Hence for those of you interested in building
your own equipment, getting the maximum out of necessarily inefficient