[ARC5] Re: What did they talk to ??

Unserviceable but Repairable cosmoline at ba-watch.org
Tue May 3 08:13:20 EDT 2005


> A NASA website (http://www-istp.gsfc.nasa.gov/stargaze/Shorizon.htm) 
  describes h ow to calculate the distance to the horizon. Their 
  formula is in metric units, so I have converted it to imperial. I
  t is D = 1.223 x sqrt(h) where h is the
  height in feet. The result D is in miles.


    1000'         D= 38.6  mi
    10,000       D=122.3  mi
    30,000       D= 211.8  mi

Ya know, if you remember that $h1t about PI 'n stuff, you can get result
for a D=8000ft ball w/o any steenking NASA web site

What's missing here is that you can 'see' another 30000'-high plane at 2X 
that difference, ie 400 mi.s.  And if that planes's a repeater, it's 
sig can go another 200 mi.s.

   IE  600mi.s

Who sed Berlin-London same distance?  OK, ok - there is 1/d attenuation.

Wull folks, I've a pal that was B17 radio in last 6 mo.s over DL.  Never
touched a radio in flight.  Liasson radio was via 'war wearies' used as 
repeaters over western France.  Interplane (command) on '522 as well

He ran the top-blister MG a lot tho.  Even got a shot @ a ME-163 rocket 
plane.  And DID run thru all the 274 & 288 tune-up & test b4 each
flight.  Tho never used on mission - they were ready.

This was all hashed a year ago & theory has it's adherants & detractors.
But why did one degreed, electronics-savy, ASB installer for CAF's 
SBD make this up?

And AW288 sed there was a prod'n system called ARC-10 using ARC-1
VHFs

   http://hereford.ampr.org/millist/m3.html sez so too.

Now I shudn't be a smart @$$ on arithmetic since I miscalculated BC-1000
channel widths last week (mea culpa '5cab).  But, since no one mentioned 
the repeaters (relays) again, had to throw this in.


  'rm


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