[SOC] A question for you

[Thomas Spencer]

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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