In article , (Bob) wrote:

On Sun, 9 Jan 2005 07:47:25 -0800, "Chuck Tribolet"
wrote:

Would you care to be more specific?


"Bruce in Alaska" wrote in message
...
In article ,
James Hebert wrote:

http://continuouswave.com/whaler/reference/VHF.html

I find your math to be very good, but your conclusions don't track
very well with REAL World experience.


off the top of my head, looking at the article, i think there's an
error. he says EACH antenna needs to be 12.4 feet above the surface,
but i think the SUM of the antenna heights needs to be this...IOW each
antenna needs to be 6.2 feet high.

---------------------------
to see who "wf3h" is, go to "qrz.com"
and enter 'wf3h' in the field

If two vessels are ten miles apart, they will each
need antennas 12.4 feet high in order for their
radio horizons to be in view (line-of-sight) of
each other.

The case presented shows how much margin there
is in a typical circuit. There are many poor
radio installations aboard recreational vessels
which can barely talk to the marina office
from its dock own gas dock, but this does
not constitute a negation of laws of physics.