[Boatanchors] Radio transmitter ranges

[Duane Fischer, W8DBF]

Grant, 	
	
Let's not confuse things here! If a radio signal is not below the surface of the
water or on the surface of the land, but above them in the air, should we not be
discussing aeronautical miles? (Surely somebody somewhere at sometime must have
come up with air travel conversions. Such as air speed in Knots relative to the
ground and Knots in terms of actual air speed.) Why even mention how the
conversion factors change below the surface of the water or above the land mass
or if the speed is affected by a head or tail wind and ...	
	
When it is all said and done; does it really matter if you drive the car from
the left or the right hand side, whether the driver is right or left handed or
ambidextrous or if they even know their right from their left?	
	
Now why did we get a nautical and a statute mile to begin with? What was wrong
with just a "mile"? Who came up with Knots anyhow, surely not Mark Twain! (LOL!)
Who had the bright idea of calling a distance traveled beneath the surface of
the water a 'league' anyhow? 

----------
From: Grant Youngman <nq5t at comcast.net>
To: boatanchors at mailman.qth.net
Subject: RE: [Boatanchors] Radio transmitter ranges
Date: Thursday, June 16, 2005 3:58 PM

 
> Now a nautical mile is 6,076 feet. 

Unless you're in the UK, in which case it is still often shown as 6080 feet.
Or running plotting board solutions, etc., in which case 6000 feet (2000
yds) is nominally taken as the nautical mile for the purpose of computing
speed and/or time.  But I believe the international standard is a hair over
6076 feet.

It's all over the "map" so to speak :-)

Grant/NQ5T


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