Labels Markup
AFNOR

A timecode developed by Association Française de Normalisation. 

DCF, DCF-77

Low frequency terrestrial radio signal from Frankfurt, Germany.

Disciplined oscillator

An oscillator that has been ‘disciplined’ or pre-calibrated to a time signal, e.g GPS.

GLONASS

Global Satellite Navigation System launched by the Russian Federation in 1999.

GMT

Greenwich Mean Time, local legal time in Britain.

GPS

Global Positioning System.

IRIG

Inter Range Instrumentation Group. Developers of a set of timecodes which are widely used.

LCD

Liquid Crystal Display; Liquid crystals are suspended in small amount of liquid and then sandwiched between two glass plates.  When an electrical current is passed though, the crystals align so that light cannot pass through them. 

LED

Light Emitting Diode; A display technology that uses a semiconductor diode that emits light when charged.

Masterclock

A clock used as a primary reference for other sub-master (slave) clocks.

NTP

Network Time Protocol, a method of transmitting time data across a computer network in order to synchronise internal clocks to a common time source.

Oscillator

An electronic device which generates a recurring waveform (the resonance frequency). This frequency is a counter to measure time and so is used extensively in clocks as a frequency reference source. 

SNMP

Simple Network Management Protocol, the internet protocol for network management software systems.

Stratum 1 Server

Device with a direct connection (not via a network) to a Stratum 0 time reference source.

Time server

Device that distributes time over a computer network in order to synchronise all the internal computer clocks.

Timecode

Time information in a coded signal format which facilitates synchronisation of any combination of message output, e.g. pictures with sound.

UTC

Co-ordinated Universal Time. The time calculated as a weighted average of about 200 atomic clocks around the world.

MOBALine

MOBALine is a self setting time code which contains the complete time and date information. As the clocks are powered through the same cabling, no additional power cable is necessary to run the clocks.