low-frequency window

- active window
- alumina window
- application window
- atmospheric window
- Bartlett window
- base window
- battery window
- beryllia window
- bond window
- Brewster window
- Brewster-angle window
- capacitivewindow
- cascaded windows
- ciphering window
- coaxial window
- command window
- contact window
- coupling window
- diffusion window
- document window
- filter window
- free-form windows
- frequency window
- graphic window
- half-wave window
- Hamming window
- high-frequency window
- history window
- inactive window
- inductive window
- input window
- ionospheric window
- lag window
- launch window
- low-frequency window
- mica window
- microwave silicon window
- nonresonant window
- optical window
- overlaid windows
- oxide window
- partial window
- Parzen window
- pop-up window
- prediction window
- publication window
- quartz window
- radio window
- receive window
- rectangular window
- resonant window
- round window
- sampling window
- sapphire window
- screen window
- service window
- silicon window
- spectral window
- split window
- staggered windows
- sync window
- text window
- tiled windows
- time window
- Tukey window
- tuned window
- type-in window
- ultraviolet window
- UV window
- via window
- viewing window
- waveguide window
- weak window
- worksheet window

- acoustic frequency
- acoustical frequency
- actual frequency
- air-ground radio frequency
- air-to-ground radio frequency
- alias frequency
- alpha cutoff frequency
- alternate frequency
- angular frequency
- antenna resonant frequency
- antiferromagnetic resonance frequency
- antiresonant frequency
- anti-Stokes frequency
- assigned frequency
- atomic frequency
- audio frequency
- aural center frequency
- authorized frequency
- avalanche frequency
- base frequency
- base-transport cutoff frequency
- basic frequency
- bass frequency
- beat frequency
- beta cutoff frequency
- bias frequency
- Bragg frequency
- break frequency
- bubble-propagation frequency
- bus frequency
- carrier frequency
- center frequency
- channel frequency
- characteristic frequency
- chopping frequency
- circular frequency
- clock frequency
- co-channel sound frequency
- collision frequency
- combination frequency
- commercial frequency
- complex frequency
- constant frequency
- core frequency
- corner frequency
- critical frequency
- critical fusion frequency
- crossover frequency
- cumulative relative frequency
- cutoff frequency
- cyclotron frequency
- data frequency
- data communications frequency
- 3-dB frequency
- dedicated frequency
- difference frequency
- diffusion frequency
- distress frequency
- Doppler frequency
- Doppler-beat frequency
- Doppler-shifted frequency
- down-link frequency
- drift frequency
- driving frequency
- dynamic-scattering cutoff frequency
- echo frequency
- electron Langmuir frequency
- electron paramagnetic resonance frequency
- electron plasma frequency
- expected frequency
- extinction frequency
- extremely high frequency
- extremely low frequency
- facsimile picture frequency
- ferrimagnetic-resonance frequency
- ferromagnetic-resonance frequency
- field frequency
- fixed frequency
- flicker-fusion frequency
- flutter frequency
- folding frequency
- forward-bias cutoff frequency
- frame frequency
- free-running frequency
- fundamental frequency
- fundamental scanning frequency
- fusion frequency
- gap frequency
- gliding frequency
- ground-air frequency
- ground-to-air frequency
- group frequency
- Gunn frequency
- half-power frequency
- harmonic frequency
- helicon frequency
- heterodyne frequency
- high frequency
- highest probable frequency
- horizontal-line frequency
- horizontal-scanning frequency
- hyperfine frequency
- hyperfine transition frequency
- hyperhigh frequency
- idler frequency
- image frequency
- imaginery frequency
- IMPATT-frequency
- impingement frequency
- impulse frequency - instantaneous frequency
- intercarrier frequency
- intermediate frequency
- intermodulation frequency
- intermodulation component frequency
- inversion-layer cutoff frequency
- ion cyclotron frequency
- ionization frequency
- ion plasma frequency
- jittered pulse-recurrence frequency
- Josephson frequency
- keying frequency
- knee frequency
- Langmuir plasma frequency
- Larmor frequency
- laser-frequency
- laser-emission-frequency
- lattice vibration frequency
- line frequency
- line screen frequency
- lobe frequency
- local-oscillator frequency
- locking frequency
- low frequency
- lower side frequency - lowest useful high frequency
- magnetohydrodynamic frequency
- magnetoplasma frequency
- mains frequency
- maser frequency
- maser-emission frequency
- master frequency
- maximum frequency of oscillation
- maximum keying frequency
- maximum modulating frequency - microwave frequency
- midband frequency
- mode frequency
- modulation frequency
- multiple frequency
- natural frequency
- nominal frequency
- notch frequency
- note frequency
- Nyquist frequency
- observed frequency
- operating frequency
- optical frequency - photoelectric threshold frequency
- picture frequency
- piezoelectric crystal antiresonant frequency
- piezoelectric crystal resonant frequency
- pilot frequency
- plasma frequency
- power frequency
- power-line frequency
- precession frequency
- primary frequency
- pulse-recurrence frequency - pumping frequency
- quasi-optical frequency
- quench frequency
- quenching frequency
- quiescent frequency
- radian frequency
- radio frequency
- rated frequency
- reactive cutoff frequency
- real frequency
- reference frequency
- relative frequency
- relative frequency
- repetition frequency
- resistive cutoff frequency
- resonance frequency
- resonant frequency
- rest frequency
- resting frequency
- ringing frequency
- ripple frequency
- scan frequency
- scanning-line frequency
- screen frequency
- secondary frequency
- second-channel frequency
- self-neutralization frequency
- self-resonant frequency
- SH frequency
- side frequency
- sonic frequency
- sound frequency
- sound carrier frequency
- sound center frequency
- space frequency
- spark frequency
- spatial frequency
- speech frequency
- spike frequency
- spin frequency
- spot frequency
- standard frequency
- Stokes frequency
- subaudio frequency
- subcarrier frequency
- subharmonic frequency
- sub-Nyquist frequency
- subsonic frequency
- sub-telephone frequency
- sum frequency
- summation frequency
- superaudio frequency - super-telephone frequency
- supply frequency
- suppression frequency
- sweep frequency
- synchronizing frequency
- threshold frequency - toggle frequency
- tone frequency
- top baseband frequency
- transition frequency
- transit-time frequency
- transit-time cutoff frequency
- transmission frequency
- TRAPATT frequency
- trapped plasma frequency
- treble frequency
- turnover frequency
- ultra-audible frequency - undamped frequency
- uniform precession frequency
- unity-gain frequency
- up-link frequency
- upper side frequency
- variable frequency
- vertical frequency - video frequency
- vision frequency
- vision carrier frequency
- visual carrier frequency
- voice frequency
- voltage gain cutoff frequency
- waveguide cutoff frequency
- window frequency
- wow frequency

- absolute cutoff frequency
- acoustic frequency
- acoustical frequency
- actual frequency
- air-ground radio frequency
- air-to-ground radio frequency
- alias frequency
- alpha cutoff frequency
- alternate frequency
- angular frequency
- antenna resonant frequency
- antiferromagnetic resonance frequency
- antiresonant frequency
- anti-Stokes frequency
- assigned frequency
- atomic frequency
- audio frequency
- aural center frequency
- authorized frequency
- avalanche frequency
- base frequency
- base-transport cutoff frequency
- basic frequency
- bass frequency
- beat frequency
- beta cutoff frequency
- bias frequency
- Bragg frequency
- break frequency
- bubble-propagation frequency
- bus frequency
- carrier frequency
- center frequency
- channel frequency
- characteristic frequency
- chopping frequency
- circular frequency
- clock frequency
- co-channel sound frequency
- collision frequency
- combination frequency
- commercial frequency
- complex frequency
- constant frequency
- core frequency
- corner frequency
- critical frequency
- critical fusion frequency
- crossover frequency
- cumulative relative frequency
- cutoff frequency
- cyclotron frequency
- data communications frequency
- data frequency
- dedicated frequency
- difference frequency
- diffusion frequency
- distress frequency
- Doppler frequency
- Doppler-beat frequency
- Doppler-shifted frequency
- down-link frequency
- drift frequency
- driving frequency
- dynamic-scattering cutoff frequency
- echo frequency
- electron Langmuir frequency
- electron paramagnetic resonance frequency
- electron plasma frequency
- expected frequency
- extinction frequency
- extremely high frequency
- extremely low frequency
- facsimile picture frequency
- ferrimagnetic-resonance frequency
- ferromagnetic-resonance frequency
- field frequency
- fixed frequency
- flicker-fusion frequency
- flutter frequency
- folding frequency
- forward-bias cutoff frequency
- frame frequency
- free-running frequency
- fundamental frequency
- fundamental scanning frequency
- fusion frequency
- gap frequency
- gliding frequency
- ground-air frequency
- ground-to-air frequency
- group frequency
- Gunn frequency
- half-power frequency
- harmonic frequency
- helicon frequency
- heterodyne frequency
- high frequency
- highest probable frequency
- horizontal-line frequency
- horizontal-scanning frequency
- hyperfine frequency
- hyperfine transition frequency
- hyperhigh frequency
- idler frequency
- image frequency
- imaginery frequency
- IMPATT-frequency
- impingement frequency
- impulse frequency
- infralow frequency
- infrasonic frequency
- instantaneous frequency
- intercarrier frequency
- intermediate frequency
- intermodulation component frequency
- intermodulation frequency
- inversion-layer cutoff frequency
- ion cyclotron frequency
- ion plasma frequency
- ionization frequency
- jittered pulse-recurrence frequency
- Josephson frequency
- keying frequency
- knee frequency
- Langmuir plasma frequency
- Larmor frequency
- laser-emission-frequency
- laser-frequency
- lattice vibration frequency
- line frequency
- line screen frequency
- lobe frequency
- local-oscillator frequency
- locking frequency
- low frequency
- lower side frequency
- lowest observed frequency
- lowest useful frequency
- lowest useful high frequency
- magnetohydrodynamic frequency
- magnetoplasma frequency
- mains frequency
- maser frequency
- maser-emission frequency
- master frequency
- maximum frequency of oscillation
- maximum keying frequency
- maximum modulating frequency
- maximum observed frequency
- maximum usable frequency
- medium frequency
- microwave frequency
- midband frequency
- mode frequency
- modulation frequency
- multiple frequency
- natural frequency
- nominal frequency
- notch frequency
- note frequency
- Nyquist frequency
- observed frequency
- operating frequency
- optical frequency
- optimum working frequency
- penetration frequency
- photoelectric threshold frequency
- picture frequency
- piezoelectric crystal antiresonant frequency
- piezoelectric crystal resonant frequency
- pilot frequency
- plasma frequency
- power frequency
- power-line frequency
- precession frequency
- primary frequency
- pulse-recurrence frequency
- pulse-repetition frequency
- pump frequency
- pumping frequency
- quasi-optical frequency
- quench frequency
- quenching frequency
- quiescent frequency
- radian frequency
- radio frequency
- rated frequency
- reactive cutoff frequency
- real frequency
- reference frequency
- relative frequency
- repetition frequency
- resistive cutoff frequency
- resonance frequency
- resonant frequency
- rest frequency
- resting frequency
- ringing frequency
- ripple frequency
- scan frequency
- scanning-line frequency
- screen frequency
- secondary frequency
- second-channel frequency
- self-neutralization frequency
- self-resonant frequency
- SH frequency
- side frequency
- sonic frequency
- sound carrier frequency
- sound center frequency
- sound frequency
- space frequency
- spark frequency
- spatial frequency
- speech frequency
- spike frequency
- spin frequency
- spot frequency
- standard frequency
- Stokes frequency
- subaudio frequency
- subcarrier frequency
- subharmonic frequency
- sub-Nyquist frequency
- subsonic frequency
- sub-telephone frequency
- sum frequency
- summation frequency
- superaudio frequency
- superhigh frequency
- supersonic frequency
- super-telephone frequency
- supply frequency
- suppression frequency
- sweep frequency
- synchronizing frequency
- threshold frequency
- timed radio frequency
- timing frequency
- toggle frequency
- tone frequency
- top baseband frequency
- transition frequency
- transit-time cutoff frequency
- transit-time frequency
- transmission frequency
- TRAPATT frequency
- trapped plasma frequency
- treble frequency
- turnover frequency
- ultra-audible frequency
- ultrahigh frequency
- ultrasonic frequency
- unassigned frequency
- undamped frequency
- uniform precession frequency
- unity-gain frequency
- up-link frequency
- upper side frequency
- variable frequency
- vertical frequency
- very high frequency
- very low frequency
- video frequency
- vision carrier frequency
- vision frequency
- visual carrier frequency
- voice frequency
- voltage gain cutoff frequency
- waveguide cutoff frequency
- window frequency
- wow frequency

- accumulation region
- achromatic region
- active region
- allowed energy region
- alloy region
- alloyed region
- anode region
- avalanche region
- barrier region
- base region
- black region
- blacker-than-black region
- bottoming region
- breakdown region
- cathode region
- Chapman region
- closed region
- collector region
- compensated region
- confidence region
- coverage region
- critical region
- crossover region
- cutoff region
- D-region
- depletion region
- diffraction region
- double-drift region
- drain region
- drift region
- E-region
- emitter region
- engagement region
- equipotential region
- equisignal region
- excitatory region
- exhaustion region
- F-region
- F1 region
- F2 region
- far region
- far-field region
- far-infrared region
- floating-base region
- floating-isolation region
- forbidden region
- forward-conduction region
- forward-injection region
- Fraunhofer region
- Fresnel region
- gate region
- Geiger-Mueller region
- geometrical-optics region
- growth region
- high-E-field region
- high-field region
- high-frequency region
- high-resistivity region
- i-region
- impurity region
- inactive region
- interface region
- intrinsic region
- isolated-bubble region
- joint confidence region
- junction depletion region
- lattice-scattering region
- limited-proportionality region
- linear region
- low-frequency region
- molten region
- multiplication region
- n-region
- near region
- near-field region
- near-infrared region
- near-intrinsic region
- negative-resistance region
- normal region in fluxoid core
- ohmic region
- opaque region
- open region
- out-diffused region
- p-region
- peak region
- pinch-off region
- primary-breakdown region
- proportional region
- quasi-specular region
- radiating far-field region
- radiating near-field region
- radiation region
- Rayleigh region
- reactive near-field region
- rejection region
- saturation region
- shadow region
- simply-connected region
- single-drift region
- source region
- space-charge region
- stop region
- subthreshold region
- surface depletion-layer region
- swept-out region
- transhorizon region
- transistor region
- transition region
- twinned region
- uniform avalanching region
- valley region
- white region
- window region

- accumulation region
- achromatic region
- active region
- allowed energy region
- alloy region
- alloyed region
- anode region
- avalanche region
- barrier region
- base region
- black region
- blacker-than-black region
- bottoming region
- breakdown region
- cathode region
- Chapman region
- closed region
- collector region
- compensated region
- confidence region
- coverage region
- critical region
- crossover region
- cutoff region
- depletion region
- diffraction region
- double-drift region
- drain region
- D-region
- drift region
- emitter region
- engagement region
- equipotential region
- equisignal region
- E-region
- excitatory region
- exhaustion region
- F1 region
- F2 region
- far region
- far-field region
- far-infrared region
- floating-base region
- floating-isolation region
- forbidden region
- forward-conduction region
- forward-injection region
- Fraunhofer region
- F-region
- Fresnel region
- gate region
- Geiger-Mueller region
- geometrical-optics region
- growth region
- high-E-field region
- high-field region
- high-frequency region
- high-resistivity region
- impurity region
- inactive region
- interface region
- intrinsic region
- i-region
- isolated-bubble region
- joint confidence region
- junction depletion region
- lattice-scattering region
- limited-proportionality region
- linear region
- low-frequency region
- molten region
- multiplication region
- near region
- near-field region
- near-infrared region
- near-intrinsic region
- negative-resistance region
- normal region in fluxoid core
- n-region
- ohmic region
- opaque region
- open region
- out-diffused region
- peak region
- pinch-off region
- p-region
- primary-breakdown region
- proportional region
- quasi-specular region
- radiating far-field region
- radiating near-field region
- radiation region
- Rayleigh region
- reactive near-field region
- rejection region
- saturation region
- shadow region
- simply-connected region
- single-drift region
- source region
- space-charge region
- stop region
- subthreshold region
- surface depletion-layer region
- swept-out region
- transhorizon region
- transistor region
- transition region
- twinned region
- uniform avalanching region
- valley region
- white region
- window region