Logarithmic scales of measurement | Units of measurement

DBc

dBc (decibels relative to the carrier) is the power ratio of a signal to a carrier signal, expressed in decibels. For example, phase noise is expressed in dBc/Hz at a given frequency offset from the carrier. dBc can also be used as a measurement of Spurious-Free Dynamic Range (SFDR) between the desired signal and unwanted spurious outputs resulting from the use of signal converters such as a digital-to-analog converter or a frequency mixer. If the dBc figure is positive, then the relative signal strength is greater than the carrier signal strength. If the dBc figure is negative, then the relative signal strength is less than carrier signal strength. Although the decibel (dB) is permitted for use alongside SI units, the dBc is not. (Wikipedia).

Video thumbnail

the Internet (part 2)

An intro to the core protocols of the Internet, including IPv4, TCP, UDP, and HTTP. Part of a larger series teaching programming. See codeschool.org

From playlist The Internet

Video thumbnail

Relational Databases (part 1 of 6)

The essential concepts of relational databases. Part of a larger series teaching programming. Visit codeschool.org

From playlist Relational Databases

Video thumbnail

How to Work with Wikipedia Sandbox

This is a short video that helps students or editors of Wikipedia to access and edit in the Sandbox of their user account. This was made for the Wiki Edu Project. I do not own or hold copyright over any aspect of the Wikipedia site or its pages. ***There is no audio***

From playlist Wikipedia Education Dashboard Tutorials

Video thumbnail

Wireshark Tutorial for Beginners - Overview of the environment

Wireshark Tutorial for Beginners, become an advanced Wireshark user today! How to scan for packets in wireshhark and how to customize the layout in Wireshark. Wireshark is a free and open source packet analyzer. It is used for network troubleshooting, analysis, software and communications

From playlist Wireshark

Video thumbnail

Excel

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist Microsoft Excel

Video thumbnail

CRISPR

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist CRISPR

Video thumbnail

(I.37) Triangles are Equal, if bases are common and in same parallels, Proof

Support my channel with this special custom merch! https://www.etsy.com/listing/994053982/wooden-platonic-solids-geometry-set Learn this proposition with interactive step-by-step here: http://pythagoreanmath.com/euclids-elements-book-1-proposition-37/ visit my site: http://www.pythagorea

From playlist Euclid's Elements Book 1

Video thumbnail

Proof: Vertical angles are equal | Angles and intersecting lines | Geometry | Khan Academy

Proving that vertical angles are equal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/ang_intro/e/congruent_angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w

From playlist Angles and intersecting lines | Geometry | Khan Academy

Video thumbnail

Angle Bisector Theorem - Midpoints & Line Segments

This geometry video tutorial discusses the angle bisector theorem and explains how to solve word problems with midpoints and line segments. This video contains plenty of examples and practice problems. Geometry Playlist: https://www.youtube.com/watch?v=w8wdKOsUD-4&index=3&list=PL0o_zxa4K

From playlist Geometry Video Playlist

Video thumbnail

Domain Name System DNS

This video is about the Domain Name System (DNS), a global system in which user friendly domain names are translated into IP addresses. It outlines what takes place when a client computer needs to contact a web site, including the roles of the Internet Service Provider’s recursive resolve

From playlist Computer Networks

Video thumbnail

Finding the Value of Unknown Angles inside a Triangle - Geometry

This video focuses on finding the value of unknown angles inside of a triangle. In particular, this video hows how to use the concept of straight angles and the sum of the interior angles of a triangle is 180 degrees to find the value of unknown angles. I made this video in Nov 2013 but

From playlist Geometry

Video thumbnail

Parallel and Perpendicular Lines, Transversals, Alternate Interior Angles, Alternate Exterior Angles

This basic geometry video tutorial discusses parallel and perpendicular lines in addition to transversals and all the angles that are formed by it such as alternate interior and exterior angles. This video contains plenty of examples and practice problems. My Website: https://www.video-

From playlist Pre-Algebra Video Playlist

Video thumbnail

Complementary Angles and Supplementary Angles - Geometry

This geometry video tutorial explains how to solve algebra problems associated with complementary angles and supplementary angles.

From playlist Geometry Video Playlist

Video thumbnail

Euclid's "Elements" - Book 1, Proposition 45

https://www.patreon.com/Mathoma Heath's translation of Euclid's "Elements" http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0086%3Abook%3D1%3Atype%3DProp%3Anumber%3D45 Greek-English parallel text plus diagrams: https://archive.org/details/JL_Heiberg___EUCLIDS_ELEMENT

From playlist Euclid's "Elements" - Book 1

Video thumbnail

Writing a proof for an acute triangle

👉 Learn how to write a proof given a triangle. A triangle is a polygon with three sides. A proof is a series of statements and reasons that establishes the truth of a mathematical claim(statement). To write a proof given a triangle, we first draw two columns with the first column titled "s

From playlist Triangles

Video thumbnail

Your Career

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist Your Career

Video thumbnail

Complementary and supplementary angles | Angles and intersecting lines | Geometry | Khan Academy

Let's add some tools to our geometry tool belt. Here's a thorough explanation of complementary and supplementary angles, as well as definitions of adjacent and straight angles. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/parallel-

From playlist High School Geometry | Get Ready for Grade Level | Khan Academy

Video thumbnail

What is Office 365?

In this video, you’ll learn more about Office 365 and how it works. Visit https://edu.gcfglobal.org/en/powerpoint/what-is-office-365/1/ for our text-based lesson. We hope you enjoy!

From playlist Microsoft Word

Video thumbnail

(I.6) Indirect Proof: Converse of Base Angles of an Isosceles Triangle are Congruent

Support my channel with this special custom merch! https://www.etsy.com/listing/994053982/wooden-platonic-solids-geometry-set Learn this proposition with interactive step-by-step here: http://pythagoreanmath.com/euclids-elements-book-1-proposition-6/ visit my site: http://www.pythagorean

From playlist Euclid's Elements Book 1

Related pages

Frequency | Decibel | Hertz | Phase noise | Frequency mixer