[HCARC] So you want some radials, eh

Don Murray via HCARC hcarc at mailman.qth.net
Sat Aug 8 01:02:31 EDT 2015



 
In a message dated 8/7/2015 9:39:02 P.M. Central Daylight Time,  
qltfnish at omniglobal.net writes:

So you want some radials, EH??

https://www.youtube.com/watch?v=u9n26KE9xPo



Just to put things into perspective...   An AM station on  1170KHz...   is 
operating on a frequency with a 1/4 wavelength  of approx 200 feet.
 
So, for an FCC approved 1//4 wave vertical antenna...   you have a 200 foot 
tower...  
 
Like Rohn 55... twenty 10 foot sections @ approx  $350 each...
 
120 radials at 200 feet each = 24,000 feet @ approx  $0.30/ft
 
Tower sections approx $7,000
 
Radial wire approx  $7,200
 
Then add:  base insulator, concrete for antenna base  and guy
anchors, rebar, guy wire, guy wire strain insulators, and  installation!!
 
A bit of money...
 
 
Just for grins...  check out this video which talks  about elevated radials,
which were mentioned last night!
 
Note that for our 200 foot vertical radiator, if we go to  elevated radials,
we would probably add two tower sections, approx   $700...  but we
only need 1,200 foot of radial wire, at a cost of approx  $360!!  A savings
of approx $6,800. 
 
ENJOY
 


https://www.youtube.com/watch?v=NSoUjs2JwGg

 
73
Don
W4WJ
 
 
 
 
 

Gary  J
N5BAA
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