http://www.articlealley.com en-us editorial@articlealley.com Oscillators provide a consistent and stable timing reference for an electronic system or for a module(s) within the system. In some applications, the output frequency of the oscillator needs to be adjusted after the system is in operation. System designer... http://www.articlealley.com/http://martin4.articlealley.com/improving-system-performance-and-frequency-stability-with-new-vcxos-2419971.html 19th March 2012 The Global positioning Program (GPS) is frequently applied by computer devices, these as NTP Server methods, to present an precise timing reference for time critical purposes. This report offers an overview of GPS for timing purposes and describes the dev... http://www.articlealley.com/http://tierra.articlealley.com/ntp-server-static-gps-antenna-methods-1933871.html 06th January 2011 * Plays audio CDs, MP3 CDs, CD-R/CD-RWs / Vector Linear Shaping Circuitry (VLSC) / Super precision clock. Selectable control for digital filter * Massive power transformer / Wolfson 192 kHz/24-bit DAC / Direct Digital Path / 2 digital outputs (optical/c... http://www.articlealley.com/http://globalelectronics.articlealley.com/onkyo-dx7555-audiophile-single-disc-cd-player-1479848.html 30th March 2010 PC's maintain time using internal real-time clock chips. These are relatively low cost devices that do not keep very good time. They can drift by seconds or even minutes each day. This can cause real headaches when events need to be ordered across a numbe... http://www.articlealley.com/http://dave.articlealley.com/how-to-sync-a-network-using-ntp-1188106.html 20th October 2009 Network Time Protocol (NTP) provides algorithms and defines messages for the synchronisation of time clients to an accurate time reference. This article discusses how to configure a Linux NTP Time Server to synchronise time with an Internet based public N... http://www.articlealley.com/http://geeta1.articlealley.com/how-to-configure-your-linux-ntp-server-1024541.html 09th August 2009 Satellite navigation, which is most commonly referred to as GPS or Global Positioning System is one of the most dynamic ways to navigate to virtually any location in the world. If you have been considering whether or not you want satellite navigation or G... http://www.articlealley.com/http://leelazarus.articlealley.com/why-satellite-navigation-is-useful-939148.html 16th June 2009 NTP is an acronym for Network Time Protocol. NTP is used throughout the computing industry to maintain synchronisation of computers and network infrastructure to an accurate time reference, or NTP Time Server. This article attempts to clearly and simply d... http://www.articlealley.com/http://dave.articlealley.com/why-does-my-organisation-need-a-ntp-time-server-743144.html 08th January 2009 What is a network time server? A network time server is a hardware device that utilises a single time source and distributes it amongst a network to ensure all computers and devices are telling the same time. What is NTP? Network Time Protocol ... http://www.articlealley.com/http://richardnwilliams.articlealley.com/network-time-server-faq-654567.html 02nd October 2008 A NTP Server is a network device that provides network servers and other network infrastructure with an accurate timing reference. A NTP Server obtains precise time from an external time source, such as radio time and frequency broadcasts or GPS. This art... http://www.articlealley.com/http://dave.articlealley.com/ntp-server-reference-clocks-whats-best-radio-or-gps--648382.html 25th September 2008 There are hundreds of internet based timing sources that allow computers running NTP to synchronise to a UTC time - however, there are several drawbacks in relying on the Internet for a timing reference: Security is paramount for most computer network... http://www.articlealley.com/http://richardnwilliams.articlealley.com/network-time-server--choosing-your-time-reference-647886.html 24th September 2008 A NTP Server connects to a computer network with the purpose of synchronising all computers, routers and other devices to the exact same time. NTP servers use Network Time Protocol to adjust the drift of different machines to match the reference time. ... http://www.articlealley.com/http://richardnwilliams.articlealley.com/ntp-server--receiving-a-time-source-645319.html 23rd September 2008 The importance of an authenticated timing reference to synchronise a computer network to, cannot be stressed highly enough. While there are hundreds and quite possibly thousands of internet based timing sources these can't be authenticated leaving a sy... http://www.articlealley.com/http://richardnwilliams.articlealley.com/using-national-time-and-frequency-signals-as-a-ntp-timing-reference-586997.html 23rd July 2008 Atomic clocks are incredibly expensive and generally they are normally only to be found in large scale physics laboratories such as MIT (Massachusetts Institute of Technology), NIST (National Institute of Standards and Technology (Colorado) or the Nationa... http://www.articlealley.com/http://richardnwilliams.articlealley.com/using-msf-as-a-timing-reference-for-ntp-servers-585465.html 22nd July 2008 Atomic clocks are incredibly expensive and generally they are normally only to be found in large scale physics laboratories such as MIT (Massachusetts Institute of Technology), NIST (National Institute of Standards and Technology (Colorado) or the Nationa... http://www.articlealley.com/http://richardnwilliams.articlealley.com/using-wwvb-as-a-timing-reference-for-ntp-servers-580305.html 18th July 2008 Network Time Protocol (NTP) is an Internet standard protocol designed over 25 years ago and still under constant development. NTP synchronises devises on a network to a single timing source. If time on a network is not synchronised when applications are c... http://www.articlealley.com/http://richardnwilliams.articlealley.com/time-synchronisation-with-ntp-578140.html 17th July 2008 This article explains how you can synchronise your computer with an absolute time source and can be kept accurate using NTP. Clocks are essential for computers. Everything from sending and email to turning a PC on will involve a timestamp. Computers ar... http://www.articlealley.com/http://richardnwilliams.articlealley.com/synchronise-time-on-your-pc-using-ntp-servers-577955.html 16th July 2008 NTP servers (Network Time Protocol) are devices that can synchronise a computer network to an authoritative UTC time source. UTC (Coordinated Universal Time) is a global time scale used throughout the world and provided by atomic clocks. NTP servers ca... http://www.articlealley.com/http://richardnwilliams.articlealley.com/installing-a-dedicated-ntp-gps-time-server-569825.html 04th July 2008 NTP servers or Network Time Protocol are devices that connect to a computer network and synchronise all machines to a single time source. Of course most Windows operating systems have an inbuilt NTP program called Windows Time that can synchronise to an I... http://www.articlealley.com/http://richardnwilliams.articlealley.com/the-basics-of-an-ntp-server-568982.html 03rd July 2008 It can be really annoying. You have just got off the plane, booted up your lap top and set the clock to local time. Yet all your appointments suddenly move, not just the ones on that side of the ocean either, when you return home and reset the clock the a... http://www.articlealley.com/http://richardnwilliams.articlealley.com/windows-vista-time-servers-synchronisation-and-time-zone-advice-568064.html 01st July 2008 Network Time Protocol (NTP) is probably the Internet's oldest protocol. Developed at the University of Delaware, it has been in use and continually updated for the last 25 years. In short it is a protocol designed to synchronize the clocks on computers an... http://www.articlealley.com/http://richardnwilliams.articlealley.com/network-time-protocol-ntp-the-way-it-works-567934.html 01st July 2008 Network Time Protocol has been developed to keep computers synchronized. All computers are prone to drift and accurate timing is essential for many time critical applications. A version of NTP is installed on most versions of Windows (although a stripp... http://www.articlealley.com/http://richardnwilliams.articlealley.com/ntp-servers-basic-ntp-configuration-563382.html 25th June 2008 The world is becoming an ever smaller place. Modern technology means that it is just as easy to make a purchase from the other side of the world as it is buy something from our local high street. Everything from hotels and airline tickets to jewellery ... http://www.articlealley.com/http://richardnwilliams.articlealley.com/telling-the-time-in-a-global-economy--benefits-of-a-ntp-server-561829.html 23rd June 2008 Knowing the time is an essential part of our daily lives. We all need to know what time to start work, what time to leave and even when to get up in the morning. We have a multitude of different devices for telling us the time; from our mobile phones to o... http://www.articlealley.com/http://richardnwilliams.articlealley.com/ntp-server-the-worlds-wristwatch-559029.html 20th June 2008 NTP is almost as old as the Internet itself. It was devised and developed by Dr David Mills of the University of Delaware and has been in constant use and continually updated since 1985. NTP is an internet protocol designed to synchronise clocks on a comp... http://www.articlealley.com/http://richardnwilliams.articlealley.com/network-time-protocol-explaining-ntp-and-network-time-synchronisation-558157.html 19th June 2008 Copyright (c) 2008 Richard Williams NTP (Network Time Protocol) synchronises networks to a single time source using timestamps to represent the current time of the day, this is essential for time sensitive transactions and many system applications such... http://www.articlealley.com/http://richardnwilliams.articlealley.com/ntp-security-authentication-and-trusted-time-references-547393.html 26th May 2008 Copyright (c) 2008 Richard Williams Time servers are like other computer servers in the sense they are usually located on a network. A time server gathers timing information, usually from an external hardware source and then synchronises the network to... http://www.articlealley.com/http://richardnwilliams.articlealley.com/time-servers-and-the-importance-of-synchronisation-546618.html 25th May 2008 The GPS system is a global navigation and positioning system. It is most commonly known for providing navigation systems for cars and marine vehicles. However, the GPS system also has a less well-known feature - precision time. Each GPS satellite orbiting... http://www.articlealley.com/http://dave.articlealley.com/using-gps-to-synchronise-ntp-time-server-systems-542438.html 20th May 2008 Time servers are like other computer servers in the sense they are usually located on a network. A time server gathers timing information, usually from an external hardware source and then synchronises the network to that time. Often time servers are s... http://www.articlealley.com/http://richardnwilliams.articlealley.com/time-servers-and-the-importance-of-synchronisation-538530.html 15th May 2008 A time server is a computer server that obtains precise timing information from an external hardware clock and provides this information to clients across a computer network. A time server may be located on a local network, or intranet, or may be located ... http://www.articlealley.com/http://dave.articlealley.com/network-time-server-systems-536747.html 14th May 2008 NTP (Network Time Protocol) synchronises networks to a single time source using timestamps to represent the current time of the day, this is essential for time sensitive transactions and many system applications such as email. NTP is therefore vulnerab... http://www.articlealley.com/http://richardnwilliams.articlealley.com/ntp-security-authentication-and-trusted-time-references-529625.html 06th May 2008 Atomic Clocks have been around for over fifty years or so. They are clocks that use an atomic resonance frequency as its timekeeping element rather than conventional oscillating crystals such as quartz. Most atomic clocks use the resonance of the atom ... http://www.articlealley.com/http://richardnwilliams.articlealley.com/using-atomic-clocks-as-external-ntp-timing-references-528979.html 02nd May 2008 Network Time Protocol (NTP) is one of the Internet's oldest protocols still in use. Invented by Dr David Mills from the University of Delaware it has been utilized since 1985. NTP is designed to synchronize the clocks on computers and networks across the ... http://www.articlealley.com/http://richardnwilliams.articlealley.com/how-a-ntp-server-works-528926.html 02nd May 2008 Many networks in organisations suffer from a lack of time synchronisation between servers, workstations and other network components. This can lead to problems processing time critical information and transactions. However, a solution has been available f... http://www.articlealley.com/http://dave.articlealley.com/installing-a-radio-referenced-ntp-server-510996.html 07th April 2008 Computer servers and workstations have integrated real-time clocks that are based on simple, cheap, crystal oscillators. The real-time clock is battery backed and maintains system time even when the computer is switched off. However, crystal oscillators c... http://www.articlealley.com/http://dave.articlealley.com/maintaining-precise-time-on-your-computer-by-utilising-ntp-servers-456657.html 22nd January 2008 PC's maintain system time with relatively inexpensive crystals and real time clock chips. The low-cost and specification of the timing devices utilised means PC's can often keep very poor time. However, there are a number of hardware and software solution... http://www.articlealley.com/http://dave.articlealley.com/maintaining-precise-time-on-your-pc-using-ntp-servers-240809.html 07th November 2007 Copyright (c) 2007 Galleon SystemsThis article describes how GPS Time server Systems achieves exact timing information to give a very accurate timing reference for Network Time Synchronization.GPS System is a navigation system operated by the Military but... http://www.articlealley.com/http://galleon.articlealley.com/computer-time-synchronization-using-gps-time-226830.html 12th October 2007 The Network Time Protocol (NTP) was developed to provide a way of synchronising Internet clients to an accurate network time reference. NTP allows the time on client computers to be set to within a fraction of the correct time. The NTP protocol is a suite... http://www.articlealley.com/http://dave.articlealley.com/how-to-build-a-lowcost-gps-ntp-server-210056.html 02nd September 2007 The Network Time Protocol (NTP) was developed over 25 years ago as a means of distributing accurate time across the Internet. It is one of the oldest Internet protocols still in use today. NTP is a client-server based protocol for the distribution of accu... http://www.articlealley.com/http://dave.articlealley.com/the-ntp-server-protocol-made-easy-200644.html 13th August 2007 The GPS system is a US military system to provide worldwide positioning information for navigational purposes. The system is maintained for the military by USNO, the United States Naval Observatory. The system is implemented by 24 orbiting satellites, eac... http://www.articlealley.com/http://dave.articlealley.com/syncing-windows-and-linux-time-servers-to-gps-time-190308.html 24th July 2007 NTP is a suite of algorithms and specifications developed as an Internet protocol to ensure accurate synchronisation of client computers. Network Time Protocol specifies an agreed message structure to pass time from an accurate reference to a time client.... http://www.articlealley.com/http://dave.articlealley.com/installing-ntp-on-a-linux-machine-188073.html 23rd July 2007 Atomic clocks are utilised to provide a highly precise timing reference. Many types of clock use the generic term 'atomic'. Most atomic clocks are very expensive systems generally only found in National Physics Laboratories. Most commercial precise timing... http://www.articlealley.com/http://dave.articlealley.com/synchronising-your-computer-to-an-atomic-clock-185184.html 11th July 2007 Network Time Protocol (NTP) is a standard protocol for synchronising the time of client computers on the Internet and computer networks. The protocol operates in a hierarchical manner, each level or stratum serving the next level in the hierarchy. At the ... http://www.articlealley.com/http://dave.articlealley.com/ntp-server-precision-timing-oscillators-177747.html 26th June 2007 NTP is a standard Internet protocol for distributing accurate time to network time clients. There are a large number of public NTP time servers available on the Internet. However, it may often be the case, for security purposes, that an organisation may r... http://www.articlealley.com/http://dave.articlealley.com/choosing-a-ntp-server-reference-clock-158542.html 11th May 2007 Network Time Protocol is utilised by NTP server systems to distribute accurate time around a computer network. NTP is an Internet protocol solely used for the dissemination of time. By utilising a GPS or radio external reference clock, you can build a hig... http://www.articlealley.com/http://dave.articlealley.com/how-to-build-a-ntp-server-154554.html 02nd May 2007 NTP or Network Time Protocol is an Internet protocol used to disseminate time across a computer network. It is widely used to synchronize time critical applications to an accurate reference time source. This article describes the Network Time Protocol ... http://www.articlealley.com/http://dave.articlealley.com/network-time-ntp-server-systems-146328.html 10th April 2007