• Thumbnail for ALS162 time signal
    Time signals are transmitted by phase-modulating the carrier by ±1 radian in 0.1 s every second except the 59th second of each minute. This modulation pattern...
    18 KB (1,629 words) - 12:27, 23 February 2024
  • wobbulator was used in some old microwave signal generators to create what amounted to frequency modulation. It physically altered the size of the klystron...
    3 KB (459 words) - 16:15, 1 December 2023
  • Thumbnail for Synapse
    Synapse (category Signal transduction)
    results suggest that PIP2 signaling establishes polarized localization of synaptic components in living neurons. Modulation of neurotransmitter release...
    42 KB (4,922 words) - 02:51, 24 April 2025
  • of a composite signal Quadrature filter, the analytic signal of a real-valued filter Quadrature amplitude modulation (QAM), a modulation method of using...
    2 KB (325 words) - 16:37, 22 April 2025
  • Airband (section Modulation)
    identical signal strength, a heterodyne will be heard where no such indication of blockage would be evident in an FM system. Alternative analog modulation schemes...
    16 KB (1,641 words) - 22:48, 28 February 2025
  • Thumbnail for Klystron
    cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at...
    28 KB (3,352 words) - 19:55, 5 May 2025
  • Thumbnail for ADSL
    Troiani, Fabio (1999). "Thesis in Electronics Engineering (DU) on ADSL system with DMT modulation in respect of the Standard ANSI T1.413". DSL Knowledge Center...
    21 KB (2,699 words) - 06:31, 7 April 2025
  • Thumbnail for SECAM
    SECAM (category Video signal)
    the earlier unusual decision to adopt positive video modulation for 819-line French broadcast signals (only the UK's 405-line was similar; widely adopted...
    43 KB (5,030 words) - 14:51, 26 April 2025
  • magnetometer, measures small magnetic field variations Pulse-position modulation of a signal Pepsi Venezuela Music Awards (Spanish: Premios Pepsi Music Venezuela)...
    2 KB (267 words) - 17:49, 12 March 2025
  • Chirp compression (category Signal processing)
    waveform 'tweaking' is where frequency modulation distortion is applied to the chirps, instead of amplitude modulation. The two types of distortion are functionally...
    64 KB (10,411 words) - 09:04, 28 May 2024
  • Pulse compression (category Signal processing)
    of the original linear-frequency-modulation waveform. There are other means to modulate the signal. Phase modulation is a commonly used technique; in...
    31 KB (5,513 words) - 19:41, 27 November 2024
  • Thumbnail for NTSC
    NTSC (category Video signal)
    line-rate modulation components of the chrominance signal fall exactly in between the horizontal line-rate modulation components of the luminance signal, such...
    90 KB (10,408 words) - 13:14, 3 May 2025
  • and interference mitigation. Modulation: BPL technology utilizes specific modems to transform digital data into signals that are suitable for power line...
    23 KB (2,735 words) - 00:31, 16 January 2025
  • Beta encoder (category Digital signal processing)
    reduce the quantization error. Pulse-code modulation Quantization (signal processing) Sampling (signal processing) Du, Ke-Lin; Swamy, M. N. S. (2010), Wireless...
    3 KB (392 words) - 04:54, 19 May 2024
  • Thumbnail for Radioteletype
    Radioteletype (category Quantized radio modulation modes)
    bit and 1, 1.5 or 2 stop bits. Transmitter modulation is normally FSK (F1B). Occasionally, an AFSK signal modulating an RF carrier (A2B, F2B) is used...
    37 KB (4,667 words) - 16:33, 22 April 2025
  • Electronic counter-countermeasure (category Radar signal processing)
    a comparison signal. By comparing the signal strength as received by both the omnidirectional and the (directional) main antenna, signals can be identified...
    12 KB (1,527 words) - 06:53, 16 March 2025
  • Thumbnail for Action potential
    assisting—the propagation of signals along the neuron's axon toward synaptic boutons situated at the ends of an axon; these signals can then connect with other...
    149 KB (16,451 words) - 18:07, 21 April 2025
  • Thumbnail for Neuromodulation
    (GPCRs) to initiate a second messenger signaling cascade that induces a broad, long-lasting signal. This modulation can last for hundreds of milliseconds...
    38 KB (3,675 words) - 10:34, 16 March 2025
  • change in oscillation magnitude may be detected with a simple amplitude modulation detector like a diode that passes the peak voltage value to a small filter...
    8 KB (1,065 words) - 04:05, 26 April 2025
  • Thumbnail for Marine VHF radio
    radio transmitters used the longwave bands. During World War I amplitude modulation was developed, and in the 1920s spark radiotelegraphy equipment was replaced...
    45 KB (2,505 words) - 05:42, 15 February 2025
  • Thumbnail for UHF television broadcasting
    high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts...
    58 KB (7,977 words) - 14:27, 3 April 2025
  • Thumbnail for Plasma speaker
    transformer to step up voltage, a 555 timing chip to provide modulation and a 44 kHz carrier signal, and an audio amplifier. The kit is no longer marketed....
    8 KB (1,021 words) - 22:20, 6 March 2025
  • Amplidyne – Amplifier – Amplitude modulation – Analog circuit – Analog filter – Analog signal processing – Analog signal – Analog-to-digital converter –...
    51 KB (3,721 words) - 19:35, 10 April 2025
  • Thumbnail for IEEE 802.11
    traffic. The 802.11 family consists of a series of half-duplex over-the-air modulation techniques that use the same basic protocol. The 802.11 protocol family...
    85 KB (10,808 words) - 10:19, 5 May 2025
  • Thumbnail for History of television
    than C-band, and the digital modulation methods now used require less signal strength at the receiver than analog modulation methods. Each satellite also...
    177 KB (21,217 words) - 01:09, 5 May 2025
  • Thumbnail for Color television
    increasing the amount of radio bandwidth required to send the complete signal and thus similarly increasing the required radio spectrum. Early plans for...
    89 KB (11,620 words) - 16:59, 3 May 2025
  • Thumbnail for Galileo (satellite navigation)
    Multiplexed binary offset carrier modulation – the modulation type chosen for Galileo Open Service signals and modernized GPS signals International Terrestrial...
    104 KB (10,186 words) - 06:37, 5 May 2025
  • Thumbnail for Toll-like receptor
    activated by TLR signaling, and collectively, the TLRs constitute one of the most pleiotropic yet tightly regulated gateways for gene modulation. TLR4 is the...
    61 KB (6,771 words) - 06:33, 21 January 2025
  • Thumbnail for Protein kinase A
    Protein kinase A (category Signal transduction)
    sex, recreational drugs, and food. Protein Kinase A signal transduction pathway helps in modulation of ethanol consumption and its sedative effects. A...
    27 KB (2,665 words) - 17:03, 6 April 2024
  • Thumbnail for Power inverter
    maintaining a constant frequency with a technique called pulse-width modulation (PWM). The generated gate pulses are given to each switch in accordance...
    49 KB (6,511 words) - 12:30, 27 April 2025