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Imagine this: you're listening to your favorite radio station and they're hyping themselves up (as usual) by telling you about their "ONE HUNDRED THOUSAND WATTS OF ROCK".
There's one problem: they're not telling you the truth, and the government is in cahoots with that rock station to cover it up.
Here's another problem: they're NOT actually lying to you, because there's a difference between how much power their transmitter is actually using and how much power it seems they're using from your perspective. Government regulators only care about the latter.
Why are broadcast stations typically licensed by effective radiated power, or ERP? How much actual RF power do stations use? Does this break the laws of physics? How do you calculate a station's ERP? How do you find the amount of transmitter power to use in order to achieve a certain ERP? What's the math and science behind it? Learn all this by watching.
I've put together a handy calculator that can do all the math for you: broadcastblueprint.com/tools/...
Landing page: BroadcastBlueprint.com
Written and edited by:
Drew Kirkman
Music:
"Sunset n Beachz" performed by Ofshane
©2023 Broadcast Blueprint LLC
0:00 Introduction
0:23 TPO vs. ERP
0:51 Finding a station's licensed ERP
1:17 What is ERP?
2:07 Why Regulators Use ERP
2:59 The Decibel
3:37 Antenna Gain
4:15 Comparing to a Half-Wave Dipole
4:44 ERP vs. EIRP
5:11 Transmission Line Attenuation
6:23 Logarithmic Units Explained
7:11 Calculating ERP Overview
8:21 The Shortcut to Calculating ERP
9:09 Putting It All Together
9:33 Getting Watts Back
10:05 Finding the Right TPO
10:51 Get It Right!
11:53 Conclusion