frequency synthesizer

Directory

References

Discover

Gills of three old specimens of webcap fungus (Cortinarius) in Gloucestershire, South West England. toxic, fungi, poisonous mushroom

7 of the World’s Most Poisonous Mushrooms

Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.

7 Deadliest Weapons in History

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Young boys working in a thread spinning mill in Macon, Georgia, 1909. Boys are so small they have to climb onto the spinning frame to reach and fix broken threads and put back empty bobbins. Child labor. Industrial revolution

The Rise of the Machines: Pros and Cons of the Industrial Revolution

The Judiciary Committee of the U.S. House of Representatives receiving a deputation of female suffragists, January 11, 1871, a lady delegate (identified as Victoria Woodhull) reading her argument (cont'd)

Who Was the First Woman to Run for President of the United States?

frequency synthesizer

instrument

Learn about this topic in these articles:

microwave spectroscopy

In spectroscopy: Microwave spectroscopy
…over specific regions, and (2) frequency synthesizers, whose output is produced by the successive multiplication and addition of highly monochromatic, low-frequency signals and consists of a series of discrete frequencies with small separations that effectively provide a continuous wave signal (e.g., 6 hertz separations at 25 gigahertz).
Read More

signal generators

In signal generator
…gain, bandwidth, and signal-to-noise ratio; frequency synthesizers, which generate highly precise output frequencies over wide ranges; pulse generators, which produce pulsed signals at precise duration at precise frequencies; and random-noise generators, which produce a wideband noise for various types of electronic, mechanical, and psychological testing.
Read More