[SOC] A question for you

[Randel Livingood]

Tom,

Thanks for the info.  I think with your help I got it figured out!  What a brain buster!  What an elegant solution!

Randel


On Aug 28, 2014, at 11:50 AM, Thomas Spencer <tbspencer at windstream.net> wrote:

> Let's skip the formula for a moment. Each db increase has a multiplier value
> of 1.259. So applying that to your problem 200x(1.259x1.259)=317.0162. Each
> 3 db is approximately a doubling of the power (1.259x1.259x1.259). For power
> increase multiply , for power decreases divide. I hope that sheds some light
> on the problem. 
> 
> Tom AK4NY
> 
> -----Original Message-----
> From: SOC [mailto:soc-bounces at mailman.qth.net] On Behalf Of Randel Livingood
> Sent: Thursday, August 28, 2014 1:54 PM
> To: Operators' Club Second Class
> Subject: [SOC] A question for you
> 
> I am beating my brains out trying to figure out Effective Radiated Power.
> The formula appears to be:
> 
> ERP= Transmitter power X 10 (+- antenna gain/10)
> 
> the example given is 200 w transmitter output with an overall gain of 2db.
> So if my thinking is correct it would look something like this:
> 
> 200x10x 2/10
> 
> The answer given is that the output is 317 watts.  Can anybody help me see
> the light?
> 
> Randel
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