[BC] WLW Superpower Coverage

[John Vodenik]

And to think, back 5 years ago, I lived only 4 blocks from this beast.
John @ VOA / Delano


----- Original Message ----- 
From: "Robert Meuser" <Robertm at broadcast.net>
To: "Broadcast Radio Mailing List" <broadcast at radiolists.net>
Sent: Thursday, December 15, 2005 12:02 PM
Subject: Re: [BC] WLW Superpower Coverage


>
> I am not sure how Richard is calculating this, but the FCC charts will not 
> take you out that far for the ground conductiviy given. The chart bottoms 
> at about 800 KM for that ground conductivity. The power required for that 
> distance is 50 megawatts more or less. To get out 1000 miles, you would 
> have to have a sea water path for that power.
>
> R
>
>
> Paul Christensen wrote:
>
>>> Not the large improvement expected.  So getting a real listenable 500 kW 
>>> daytime WLW signal in north Texas (about a 1,000 mile path) probably is 
>>> not likely.
>>
>>
>> Rich,
>>
>> Running those conductivity numbers, can you solve in the other direction 
>> and compute the required power to throw a 0.1 mV/m contour 1000 miles 
>> southwest using a 195-degree tower at 700 kHz?
>>
>> The answer will probably be very surprising.
>>
>> Paul
>>
>> ====================================
>> Paul Christensen, CPBE, CBNT
>> LAW OFFICE OF PAUL B. CHRISTENSEN, P.A.
>> 3749 Southern Hills,  Jacksonville, Florida 32225
>> Office: (904) 379-7802    Facsimile: (904) 212-0050
>> pchristensen at ieee.org
>>
>>
>>
>>
>>
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>
>
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