Frequency-shift keying FSK is a method of transmitting digital signals. The two binary states, logic 0 low and 1 high , are each represented by an analog waveform.

Logic 0 is represented by a wave at a specific frequency , and logic 1 is represented by a wave at a different frequency. A modem converts the binary data from a computer to FSK for transmission over telephone lines, cables, optical fiber , or wireless media.

The modem also converts incoming FSK signals to digital low and high states, which the computer can "understand. The virtualized network poses challenges to network management systems -- and as more hardware components become virtualized, that challenge becomes even greater. This handbook discusses the steps IT must take to both build and corral their virtualized infrastructure.

You forgot to provide an Email Address. This email address is already registered. You have exceeded the maximum character limit. Please provide a Corporate E-mail Address.

By submitting my Email address I confirm that I have read and accepted the Terms of Use and Declaration of Consent. By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers. You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.

The FSK mode was introduced for use with mechanical teleprinters in the mids. The standard speed of those machines was 45 baud , equivalent to about 45 bits per second.

When personal computers became common and networks came into being, this signaling speed was tedious. Transmission of large text documents and programs took hours; image transfer was unknown.

During the s, engineers began to develop modems that ran at faster speeds, and the quest for ever-greater bandwidth has continued ever since. Today, a standard telephone modem operates at thousands of bits per second.

Cable and wireless modems work at more than 1,, bps one megabit per second or 1 Mbps , and optical fiber modems function at many Mbps. But the basic principle of FSK has not changed in more than half a century.

How to prevent network downtime in the modern enterprise. By submitting you agree to receive email from TechTarget and its partners.

Frequency modulation - Wikipedia

If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Aryaka introduced SmartACCESS, a software-defined remote access-as-a-service product that merges its CDN and private network to Cumulus' NetQ system monitors the performance of switching fabrics in large enterprises.

The new product is aimed at companies The first step in creating a strong SD-WAN business case is evaluating your organization's current WAN infrastructure.

What is frequency-shift keying (FSK)? - Definition from ijiyyyiqic.web.fc2.com

Figuring out how to calculate bandwidth requirements is vital to ensuring your network runs smoothly, and it's best to get the Learn about the different types of noise in data communication -- including thermal, intermodulation, cross-talk, impulse and This slideshow highlights the best VPNs used in enterprise wide-area networks WANs and offers principles for designing and UC mobility has lacked adoption, but the solution could be invisibility, as software tools and mobile carriers can now hide UC A Polycom camera has won this month's Network Innovation Award.

The EagleEye Director II enhances video meetings with Conference room systems have seen a resurgence, as vendors look to improve content sharing among multiple presenters. See why two-factor authentication belongs in IT's Apple opens up its Device Enrollment Program by supporting devices that weren't bought from Apple or channel partners. For competitive businesses, mobility is a must-have.

But without the proper security to go with it, mobile data is susceptible to Buyers must know how to evaluate DCIM software to ensure it meets their requirements for asset tracking and management, power and There's an innovative concept behind the buzzword 'serverless. Network, storage and server management can be overwhelming and time-consuming tasks. Evaluate automation techniques to simplify Organizations battling ransomware attacks or responding to regulatory obligations may be prime candidates for channel partners' At the Cloud Identity Summit, former covert CIA officer Valerie Plame discussed the increasing risks of nation-state Arista has upgraded its spine-leaf architecture for service providers and huge data centers.

The update includes a new spine All Rights Reserved, Copyright - , TechTarget. Techtarget Network News Features Tips More Content Answers Buyer's Guides Essential Guides Opinions Photo Stories Podcasts Quizzes Tutorials Sponsored Communities. Data Center Infrastructure Network Mgmt Network Security Virtualization WLANs All Topics.

Network Administration Network Conference News Networking Book Excerpts Networking Certs and Careers Networking Tutorials and Guides The OSI Model Working With Servers and Desktops All Subtopics.

Home Network Administration Circuit switched services equipment and providers frequency-shift keying FSK. Definition frequency-shift keying FSK GPT. Share this item with your network: See also phase-shift keying PSK. This was last updated in March Each megabit is equal to Dig Deeper on Network Administration All News Get Started Evaluate Manage Problem Solve. How to prevent network downtime in the modern enterprise When network failure hits today's enterprise, costs pile up fast Keep the lights on: Preventing network outages more critical than ever Managed enterprise network services gain traction Load More View All.

In-house network test labs fall out of favor in cloud era Cisco next-generation firewall marks improvements CIO top priorities revealed in survey SN blogs: Competitive acquisition dangerous for partners? Load More View All News. Managed enterprise network services gain traction What duties are in the network manager job description? Network engineers share technology wish list with vendors for the New Year Handling network change: Is IPv4-to-IPv6 the least of your problems?

Load More View All Evaluate. How to prevent network downtime in the modern enterprise When network failure hits today's enterprise, costs pile up fast Managed enterprise network services gain traction How the 10Base-T cable evolved and its use today Load More View All Manage.

How to prevent network downtime in the modern enterprise Keep the lights on: Preventing network outages more critical than ever What duties are in the network manager job description?

How will creating intellectual property affect the role and purpose of IT? Load More View All Problem solve. Add My Comment Register. Login Forgot your password? Submit your e-mail address below. We'll send you an email containing your password. Your password has been sent to: Please create a username to comment.

Latest TechTarget resources SDN Enterprise WAN Unified Communications Mobile Computing Data Center IT Channel Search SDN Aryaka rolls out remote access as a service on its private network Aryaka introduced SmartACCESS, a software-defined remote access-as-a-service product that merges its CDN and private network to Cumulus launches NetQ to monitor networks built on its SDN software Cumulus' NetQ system monitors the performance of switching fabrics in large enterprises.

A strong SD-WAN business case starts with evaluating your current WAN The first step in creating a strong SD-WAN business case is evaluating your organization's current WAN infrastructure.

Search Enterprise WAN How to calculate network bandwidth requirements Figuring out how to calculate bandwidth requirements is vital to ensuring your network runs smoothly, and it's best to get the How types of noise in data communication systems affect the network Learn about the different types of noise in data communication -- including thermal, intermodulation, cross-talk, impulse and The best VPNs for enterprise use This slideshow highlights the best VPNs used in enterprise wide-area networks WANs and offers principles for designing and Search Unified Communications How UC mobile apps could vanish from smartphone screens UC mobility has lacked adoption, but the solution could be invisibility, as software tools and mobile carriers can now hide UC Polycom camera focused on audio and visual innovation A Polycom camera has won this month's Network Innovation Award.

Conference room technology experiencing a renaissance Conference room systems have seen a resurgence, as vendors look to improve content sharing among multiple presenters.

Apple Device Enrollment Program expands, but IT wants more Apple opens up its Device Enrollment Program by supporting devices that weren't bought from Apple or channel partners. Lock down mobile data protection for your enterprise For competitive businesses, mobility is a must-have. Search Data Center Evaluate DCIM software and its impact on the data center Buyers must know how to evaluate DCIM software to ensure it meets their requirements for asset tracking and management, power and Serverless architectures offer more than a catchy buzzword There's an innovative concept behind the buzzword 'serverless.

IT infrastructure automation lessens the load for data center teams Network, storage and server management can be overwhelming and time-consuming tasks. Search IT Channel DRaaS market: Ransomware, compliance open channel opportunities Organizations battling ransomware attacks or responding to regulatory obligations may be prime candidates for channel partners' Expect more nation-state hacking At the Cloud Identity Summit, former covert CIA officer Valerie Plame discussed the increasing risks of nation-state Arista's latest service provider spine reaches 15 Pbps Arista has upgraded its spine-leaf architecture for service providers and huge data centers.

About Us Meet The Editors Contact Us Privacy Policy Advertisers Business Partners Media Kit Corporate Site Contributors Reprints Archive Site Map Answers E-Products Events Features Guides Opinions Photo Stories Quizzes Tips Tutorials Videos.