The weird relationship between range and output power скачать в хорошем качестве

The weird relationship between range and output power

Uncertain about what to buy? Check out THE ULTIMATE FPV SHOPPING LIST: https://www.fpvknowitall.com/ultimate... SUPPORT ME ON PATREON at: http://bit.ly/2Ep5Sia THIS IS MY FULL TIME JOB. Here are other ways that you can support me: https://www.fpvknowitall.com/support-me/ --- The spreadsheet in the video can be accessed at: https://docs.google.com/spreadsheets/... --- 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