Legend: γ = Gamma ray s HX = Hard X-ray s SX = Soft X-Rays EUV = Extreme-ultraviolet NUV = Near-ultraviolet Visible light ( colored bands ) NIR = Near-infrared MIR = Moderate-infrared FIR = Far-infrared EHF = Extremely high frequency ( microwaves ) SHF = Super-high frequency ( microwaves ) UHF = Ultrahigh frequency ( radio waves ) VHF = Very high frequency ( radio ) HF = High frequency ( radio ) MF = Medium frequency ( radio ) LF = Low frequency ( radio ) VLF = Very low frequency ( radio ) VF = Voice frequency ULF = Ultra-low frequency ( radio ) SLF = Super-low frequency ( radio ) ELF = Extremely low frequency ( radio )

Low frequency inductors are constructed like transformers, with cores of electrical steel laminated to prevent eddy currents.

Low frequency induction is an unwanted form of inductive coupling, which can occur when a metallic pipeline is installed parallel to a high-voltage power line.

; Conducted immunity: Low frequency signals ( usually 10 kHz to 80 MHz ) are injected onto the data and power lines of a device.

Low fidelity or lo-fi describes a sound recording which contains technical flaws such as distortion, hum, or background noise, or limited frequency response.

Low frequency or low freq or LF refers to radio frequencies ( RF ) in the range of 30 kHz – 300 kHz.

nl: Low frequency

fi: Low frequency

* Low frequency

A modern Low frequency | LF Radio clock

A low cost Low frequency | LF radio clock receiver, antenna left, receiver right.

* Low frequency, ( LF )

Low frequency parasitic oscillations have been called ' motorboating ' due to the similarity to the sound of a low-revving exhaust note.

The first is through VLF ( Very Low Frequency ) radio waves launched into the magnetosphere.

A gap between the inner and outer Van Allen belts, sometimes called safe zone or safe slot, is caused by the Very Low Frequency ( VLF ) waves which scatter particles in pitch angle which results in the gain of particles to the atmosphere.

Low velocity, low frequency and high amplitude Rayleigh waves are frequently present on a seismic record and can obscure signal, degrading overall data quality.

There are distinct differences in the brain ’ s electrical activity during periods of wakefulness and sleep: Low voltage fast burst brain waves ( EEG desynchronization ) are associated with wakefulness and REM sleep ( which are electrophysiologically identical ); large voltage slow waves are found during non-REM sleep.

Beta waves are split into three sections: Low Beta Waves ( 12. 5-16 Hz, " Beta 1 power "); Beta Waves ( 16. 5 – 20 Hz, " Beta 2 power "); and High Beta Waves ( 20. 5-28 Hz, " Beta 3 power ").

Low amplitude beta waves with multiple and varying frequencies are often associated with active, busy, or anxious thinking and active concentration.

The percentage of Low Saxon and High German loanwords can be estimated at 22 – 25 percent, with Low Saxon making up about 15 percent.

Low quality of available factory ammunition even without scarcity of such ammunition can also lead to fabrication of handloaded ammunition.

This can be indicated by verbal statements at the beginning of a composition, for example, " Tune Low C to C flat ", or " If necessary, tune high G to G sharp ".

Low dose applications such as disinfestation of fruit range between US $ 0. 01 / lbs and US $ 0. 08 / lbs while higher dose applications can cost as much as US $ 0. 20 / lbs.

This can be further divided into categories depending on the details of the technique, for example, LPCVD ( Low Pressure chemical vapor deposition ) and PECVD ( Plasma Enhanced chemical vapor deposition ).

; Low throughput: Due to varying load from other users sharing the same network resources, the bit rate ( the maximum throughput ) that can be provided to a certain data stream may be too low for realtime multimedia services if all data streams get the same scheduling priority.

To launch a space vehicle with humans on board, a mass driver's track would need to be several hundreds of kilometers long if providing almost all the velocity to Low Earth Orbit, though lesser length can provide major launch assist.

Low frequencies are not easily localized in small rooms, hence many stereo and multichannel audio systems feature only one subwoofer channel and a single subwoofer can be placed off-center without affecting the perceived sound stage, since the sound produced is difficult to localize.

Low birthweight is a risk factor for CP — and premature infants usually have low birth weights, less than 2. 0 kg, but full-term infants can also have low birth weights.

The further history of the Low Countries can be seen as a continual struggle between these two powers.

Low visibility underwater and distortion of image due to refraction mean that perspective photographs can be difficult to obtain.

Low range can be selected with the centre differential locked or unlocked.

Changing geomagnetic conditions can induce changes in atmospheric density causing the rapid degradation of spacecraft altitude in Low Earth orbit.

Low shear wet granulation processes use very simple mixing equipment, and can take a considerable time to achieve a uniformly mixed state.

SSSI notification can cover any " land " within the area of the conservation body, including dry land, land covered by freshwater, and land covered by the sea at high tide — but not the sea below Mean Low Water.

These can still be seen, for example, in North Germany, where the Low Saxon house occurs.

Low tide can expose them, making them easy to collect.

While forests managed for wood production commonly yield between 1 and 3 cubic meters per hectare per year, plantations of fast-growing species commonly yield between 20 and 30 cubic meters or more per hectare annually ; a Grand Fir plantation at Craigvinean in Scotland has a growth rate of 34 cubic meters per hectare per year ( Aldhous & Low 1974 ), and Monterey Pine plantations in southern Australia can yield up to 40 cubic meters per hectare per year ( Everard & Fourt 1974 ).

Low solidity rotors are best used if they are intended to drive a electricity generator ; which in turn can drive the pump.

Low self-esteem can result from various factors, including a physical appearance or weight, socioeconomic status, or peer pressure or bullying.

The largest housing areas can be found in the areas occupying Riley, Low Town, Brickfields and Turnshaws.

Another is Scalable Low Voltage Signaling for 400 mV ( SLVS-400 ) specified in JEDEC JESD8-13 October 2001 where the power supply can be as low as 800 mV and common mode voltage is about 400 mV.

Low thrust engines can perform an approximation of a Hohmann transfer orbit, by creating a gradual enlargement of the initial circular orbit through carefully timed engine firings.