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15 result(s) found where the letter starting with "L"

LAN
Local Area Network
 

LATA
Local Access and Transport Area
 

LCD
Liquid Crystal Display
 

Leap second
An intentional time step of one second used to adjust UTC to ensure approximate agreement with UT1. An inserted second is called a positive leap second, and an omitted second is called a negative leap second. A positive leap second is presently needed slightly more often than once per year.
 

LEC

Local Exchange Carrier
 

LED
Light Emitting Diode
 

Linearity
A term that applies only to VCXO’s and TCVCXO’s. It describes the maximum frequency error in following a straight line curve fitted to the actual frequencies measured at different control voltages within the control voltage range. This error is measured in percent according to the maximum deviation from the curve as a percentage of the total tuning range.
 

Linearity error
See linearity.
 

Load
See Load impedance.
 

Load impedance

The characteristics of the circuit connected to the output. Normally this specification will be used as part of the performance specification.
 

Load stability

The ability of the oscillator to maintain its design frequency over a range in load impedance. This is usually specified as a maximum variation of plus and minus parts per million over a specified percentage change in load impedance.
 

Long term frequency stability
An oscillator will change frequency over time due to internal and environmental changes This is often referred to as frequency drift. Causative factors include ageing of components, temperature and humidity, electrical environment, and shock or vibration. Long term frequency stability is a design criterion or set of criteria that specify the ability of the oscillator to maintain its design frequency over time. Long term stability measured in terms of seconds to years. Long term stability usually involves measurement averages beyond 100s. see also ageing
 

LORAN-C
Long Range Navigation, version C LOS Loss Of Signal
 

LPFRS
Low Profile Frequency Rubidium Standard
 

LTCRO

Low Temperature Coefficient Rubidium Oscillator