Installing a Ntp Server Using a Radio Reference Source

| Posted: 13-05-2008 | Comments: 0 | Views: 32 | Rating: (217)

(?)

Network Time Protocol (NTP) is one of the Internet’s oldest protocols still used, invented by Dr David Mills from the University of Delaware, it has been in utilized since 1985. NTP is a protocol designed to synchronize the clocks on computers and networks across the Internet or Local Area Networks (LANs).

NTP (version 4) can maintain time over the public Internet to within 10 milliseconds (1/100th of a second) and can perform even better over LANs with accuracies of 200 microseconds (1/5000th of a second) under ideal conditions.

NTP works within the TCP/IP suite and relies on UDP, a less complex form of NTP exists called Simple Network Time Protocol (SNTP) that does not require the storing of information about previous communications, needed by NTP. It is used in some devices and applications where high accuracy timing is not as important.

Time synchronisation with NTP is relatively simple, it synchronises time with reference to a reliable clock source. This source could be relative (a computer’s internal clock or the time on a wrist-watch) or absolute (A UTC - Universal Coordinated Time - clock source that is accurate as is humanely possible).

It is strongly recommended by Microsoft and others, that external based timing should be used rather than Internet based, as these can’t be authenticated. Specialist NTP servers are available that can synchronise time on networks using either the MSF (or equivalent) or GPS signal.

Atomic clocks are the most absolute time-keeping devices; however, they are extremely expensive and are generally only to be found in large-scale physics laboratories. However, NTP can synchronise networks to an atomic clock by using either the Global Positioning system (GPS) network or specialist radio transmission (MSF in Britain).

The MSF national time and frequency radio transmissions used to synchronise an NTP server is broadcast by the National Physics Laboratory in Cumbria which serves as the United Kingdom's national time reference, there are also similar systems in Colorado, US (WWVB) and in Frankfurt, Germany (DCF-77).

A radio based NTP time server usually consists of a rack-mountable time server, and an antenna, consisting of a ferrite bar inside a plastic enclosure, which receives the radio time and frequency broadcast. The antenna should always be mounted horizontally at a right angle toward the transmission for optimum signal strength. Data is sent in pulses, 60 a second. These signals provides UTC time to an accuracy of 100 microseconds, however, the radio signal has a finite range and is vulnerable to interference.

A radio referenced NTP servers is easily installed and can provide an organization with a precise time reference enabling the synchronization of entire networks

Rate this Article:

Current: 5 / 5 stars - 1 vote(s).

Article Tags: Gps, Windows, GPS Clock, Time Server, Ntp Server, GPS Ntp Server, Ntp Time Server, GPS Time Server, Ntp, Ntp Time Server Uk, Gps Ntp, Gps Ntp Time Server, Network Time Server, Windows Ntp Time Server, Ntp Wall Clock, Utc

Article Source: http://www.articlesbase.com/networks-articles/installing-a-ntp-server-using-a-radio-reference-source-412484.html

Print article

Send to friend

Publish this Article

Author feedback

About the Author:

Richard N Williams is a technical author and a specialist in the telecommunications and network time synchronisation industry helping to develop dedicated time server products; ethernet clocks, GPS time servers, NTP servers, digital wall clocks, atomic clock servers and SNTP time servers. Please visit us for more information about NTP products and NTP servers

Submitting articles has become one of the most popular means of generating quality backlinks and targeted traffic to your website. Join us today - It's Free!

Article Comments

Add new Comment

What is the Correct Time? the Development of Time Scales From Gmt to Utc and Their Implementation in Modern Ntp Servers
By: Richard n Williams | 09/06/2008 | Networks
This article explains all the different time scale utilized and how time can be synchronised globally.

Windows Time Server: Synchronising Your Network With Ntp
By: Richard n Williams | 24/06/2008 | Networks
This article explains how to configure Windows Server to use NTP to synchronise a network.

A Guide to Time Synchronisation With Windows Vista
By: Richard n Williams | 12/05/2008 | Networks
This article explains how Windows Vista can be synchronised to an authoritative time source such as UTC and can display the time in several time zones at the same time.

Ntp - the Need for Accurate Time
By: Richard n Williams | 24/06/2008 | Networks
This article explains how accurate time is assured across the globe thanks to UTC, atomic clocks and NTP.

A Guide to Ntp and Computer Network Time Synchronisation
By: Richard n Williams | 13/05/2008 | Networks
This article explains Network Time Protocol (NTP na dhow it is used in the synchronisation of networks.

The Lost Eleven Days
By: Richard n Williams | 19/05/2008 | Communication
This article describes what happened when Europe adopted the Gregorian calendar and the problems we still face today trying to synchronise with movement of the Earth.

Network Time Protocol: Explaining Ntp and Network Time Synchronisation
By: Richard n Williams | 10/06/2008 | Networks
This article explains how Network Time Protocol works and how it is used in the synchronisation of computers

Telling the Time in a Global Economy – Benefits of a Ntp Server
By: Richard n Williams | 16/06/2008 | Networks
This article explores the way computers all over the world can communicate with each other using NTP and UTC time.

Got a Question? Ask.

Ask the community a question about this article:

Frequently Asked Questions

Need a product key # for windows 2000 computer ...
By: Xofoxyxorockyxo | 20-07-2008
need a product key # for windows 2000 computer crashed try to download 2000 asking for number..lost cd..or was broken can anyone help me.

How to buy materials to make extruded cladded ...
By: altex2 | 19-07-2008
how to buy materials to make extruded cladded windows?

Window Weather Stripping
By: docherron42 | 19-07-2008
I am searching for a source of weather stripping for Norandex/Reynolds aluminum casement windows - 24"x72". These windows were installed about 20 years ago. Your help is appreciated. Morris

I have a MS Office XP Pro disk that is scratched ...
By: richard | 19-07-2008
I have a MS Office XP Pro disk that is scratched, and , I cannot load it on to another computer. How can I remedy this problem?

My computer is messed up. microsoft picture it ...
By: Marla | 19-07-2008
My computer is messed up. microsoft picture it photos keeps popping up for whatever .exe file I try to open. HELP!!!

Ideas for old buildings
By: Avaughn | 19-07-2008
Want to paint some sceens on old building windows that are now boarded up. any suggestions

Q&A Powered by:

Latest Networks Articles

Networking Solution for Small and Large Business
By: Smit Mathur | 25/07/2008
A peep into the necessity for small and large business networking solutions reveals that effective networking can elevate the efficiency of any organization and eventually drive a large number of clients to the organization. Not only good network installation service and robust Network Security & Support services are essential for smooth business, but also fundamental to good working conditions.

Imagination.io
By: Ryan | 24/07/2008
Domain is the distinguished part of an abstract or physical space where something exists, is performed, or is valid. For example, we may talk about: domain of interest, domain of activity. This concept is used in every branch/sector/field of human activity. imagination.io A website (alternatively, web site or Web site) is a collection of Web pages, images, videos or other digital assets that is hosted on one or more web servers, usually accessible via the Internet.

Linux – Getting the Correct Time
By: Richard n Williams | 21/07/2008
This article epxlores the beast way of keeping accurate time on Linux/Unix systems.

Touch Screen Technology – the Death Knell for the Computer Mouse
By: Richard n Williams | 21/07/2008
This article explores the demise of the computer mouse and how it is being replaced by other technolgies sucha s touch screens.

Accuracy in Timekeeping, Clocks and Their Development
By: Richard n Williams | 21/07/2008
This article explores the development of lcocks throughout the ages, from sundials to atomic clocks

How to Build and Configure Your Own Radio Referenced Ntp Time Server
By: Richard n Williams | 21/07/2008
This article explains how to build and configure your own radio referenced NTP server

Mcse Boot Camp
By: Smit Mathur | 16/07/2008
An MCSE certification makes a tremendous difference in how a person is viewed in the organization. MCSE boot camps include everything that is needed to prepare and pass the examination.

Using Msf as a Timing Reference for Ntp Servers
By: Richard n Williams | 15/07/2008
This article explores ow to use the National radio broadcast as a timing reference for an NTP time server.

More from Richard n Williams

Linux – Getting the Correct Time
By: Richard n Williams | 21/07/2008 | Networks
This article epxlores the beast way of keeping accurate time on Linux/Unix systems.

Touch Screen Technology – the Death Knell for the Computer Mouse
By: Richard n Williams | 21/07/2008 | Networks
This article explores the demise of the computer mouse and how it is being replaced by other technolgies sucha s touch screens.

Accuracy in Timekeeping, Clocks and Their Development
By: Richard n Williams | 21/07/2008 | Networks
This article explores the development of lcocks throughout the ages, from sundials to atomic clocks

How to Build and Configure Your Own Radio Referenced Ntp Time Server
By: Richard n Williams | 21/07/2008 | Networks
This article explains how to build and configure your own radio referenced NTP server

Using National Time and Frequency Signals as a Ntp Timing Reference
By: Richard n Williams | 16/07/2008 | Hardware
This article explores how to use a national time and frequency for network time synchronisation.

Keeping Accurate Time on Linux: Running a Ntp Time Server
By: Richard n Williams | 16/07/2008 | Operating Systems
This article explains how to keep accurate and synchronised time on Linux using NTP

Using Msf as a Timing Reference for Ntp Servers
By: Richard n Williams | 15/07/2008 | Networks
This article explores ow to use the National radio broadcast as a timing reference for an NTP time server.

Choosing a Touch Screen Display
By: Richard n Williams | 14/07/2008 | Hardware
This article gives advice on how to select an industrial touch screen display

Article Categories

Article Marketing

Article Notepad

Stop Duplicate Content

Term Papers

Need Help?

Sign up for our email newsletter

Receive updates, enter your email below

Use of this web site constitutes acceptance of the Terms Of Use and Privacy Policy | User published content is licensed under a Creative Commons License.
Copyright © 2005-2008 Free Articles by ArticlesBase.com, All rights reserved. (0.15, 17)

Installing a Ntp Server Using a Radio Reference Source

Article Comments

Related Articles

Got a Question? Ask.

Latest Networks Articles

More from Richard n Williams

Need Help?

Site Links

Webmasters

Business Info

Sign up for our email newsletter