The weird relationship between range and output power

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00:00:00 - Bardwell can't do basic math
00:00:59 - RC hobbyists can benefit from basic RF principles
00:01:57 - Think in ratios, not absolute amounts
00:04:53 - The formula for decibels
00:05:38 - Conversion from dB to ratio
00:06:13 - The inverse square law
00:07:45 - 4x the power = +6 dB = 2x the range
00:08:50 - You can add dB together
00:10:02 - 3 dB = 2x the power = 1.4x the range
00:10:34 - Practical Application 1
00:11:09 - Practical Applicaton 2
00:11:36 - Effect of inverse square on vTX power
00:13:32 - Have I earned your support today?
00:14:38 - Receive sensitivity is the other side of the coin
00:16:00 - Find your receiver sensitivity spec
00:17:32 - Practical Application 3
00:18:26 - Bardwell can't do math?
00:19:17 - What about antenna polarization