[BC] AM Triplex...

[DANA PUOPOLO]

An old friend (Chris Hood) from Pittsburgh once showed me a curve that
estimated ND power vs Frequency to the 1.0 mV/m contour. 250 watts at 540 and
25 kW on 1600 were roughly the same.

-D

 

------ Original Message ------
Received: Tue, 03 Jan 2006 03:11:34 PM PST
From: DHultsman5 at aol.com
To: broadcast at radiolists.net
Subject: Re: [BC] AM Triplex...

 
In a message dated 1/3/2006 4:17:19 PM Central Standard Time, acn at qwest.net  
writes:

You're  right about the ground conductivity.  Old maps showed it as 0.5, but 

it seems to be 2.0 now; I don't know why.  At night in the winter,  you can 
see a station's tower lights and not be able to hear them.  I  wouldn't dream

of trying to cover this market on AM.

Glen  Kippel



************************************
 
This is where the AM rules should be changed much like they are now doing  
with the dropping of the power limitations on the old Class III regionals,  
allowing them to go up to what ever power they can withoit interference.
 
Everyone knows the advantage of ground conductivity on 600 kHz. vis 1550  
kHz.  So why shouldn't we allow a 50 kW. on 1550 kHz. during the daytime  have

the same coverages as a 50 kW.  on 650 kHz?.  For the difference  in ground 
conductivity allow the 1550 station to up its power above  50 kW.  to give it
an 
equivalent signal as long as there is no interference and we are  talking 
daytime only.   
 
I was amazed at the big news talker in Washington goes hardly covers the  TSA

but I could clearly listen to WOR 710 from New York.
 
Oh well another stupid thought.
 
Dave.  

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