ReviewsPll Signal Generator

Tecsun PL-360 Digital PLL Portable AM/FM Shortwave Radio with DSP, Black

PLL Synthesized AM/FM/SW Radio with DSP (Digital Signal Processing) Technology.
Patented ETM Tuning (Easy Tuning Mode) plus 450 memories.
Alarm clock + sleep timer + thermometer + build-in battery charger.
30-day money back guarantee & 1-year manufacturer's warranty.

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ICQUANZX Upgraded 60MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (60MHz)

Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..

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Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened..
Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..

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AudioControl LC2i PRO 2-Channel Line Output Converter and Tile Lost Vehicle Finder Bundle. AccuBASS LOC with Impedance Matching, GTO, Audio Signal Sense, 12V Turn-On and ACR-1 Dash Sub Remote Control

Using quartz crystal for frequency stabilization, and receiving frequency will not drift when temperature changes.
Using professional audio DSP to process and analyze audio signal, auto mute when there is no signal or week signal as big FM base noise, in order to get rid of the annoying rustle of traditional FM radio.
Advanced digital audio signal processing (DSP) and FM phase-locked loop modulation technique (PLL) ensure less sound distortion and more stable performance.
Using incremental digital 360° rotating encoder to adjust volume and frequency, which is accurate, stable, durable, and also offers comfortable hand feeling.
LCD display is more intuitive and accurate, and has very low power consumption and tiny noise interference.

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RCA Wireless Overear Stereo Headphones Transmits Audio Signal up to 150 Feet 40mm Speakers for Outstanding Sound Performance Phase-Lock Loop Technology Locks in Frequency to Prevent Signal Loss

Transmits audio signal up to 150 feet, through walls, floors and ceilings.
Phase-Lock Loop (PLL) technology locks in frequency to prevent signal loss.
40mm speakers for outstanding sound performance. 900 MHz transmitting frequency.
3-channel selection on headphones and transmitter for easy tuning.
Headphones charge on transmitter for easy storage and use.

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Koolertron 60MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (60MHz)

Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine, Square, Triangle, Pulse, Partial Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, Sine Pulse, Lorentz Pulse, and 60 kinds user defined waveform etc. each channel can be independently set the parameters..
With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientif....

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Koolertron 15MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (15MHz)

Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine, Square, Triangle, Pulse, Partial Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, sine pulse, Lorentz Pulse, and 60 kinds user defined waveform etc. each channel can be independently set the parameters..
With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 15MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientif....

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1000W Long Range FM Broadcast Transmitter + 1 Bay Dipole Antenna + 30m Cable for Radio Station, Church, Home

[Adjustable Frequency Response] : The frequency of our digital FM transmitter can be adjustable, set up your own channel according your needs.You are sure to find a frequency to broadcast your favorite audio source..
[Transmits Using PLL Technology] To give you the best transmission signal possible we insisted that our FM Transmitter use PLL (or Phase Lock Loop) technology so you won’t have to worry about the transmission drifting like on FM transmitters or for that matter some other FM Transmitters out there on the market..
[FCC certificated] Our fm stereo transmitter complies with FCC certificate( FCC ID:2A6BQ-YXHT). Put our customers first, our factory provides 6 years warranty for this professional broadcast transmitter, you’ll have no worries to use it for the radio station..

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Pulse Generator, DROK 2pcs LCD Display PWM Frequency 1Hz-150kHz Duty Ratio 0-100 Percent Adjustable Square Wave Rectangular Wave Signal Generator Board

DROK pulse generator module operating voltage range is DC 3.3-30V, adjustable pwm frequency range is 1Hz-150kHz, adjustable duty ratio range is 0%-100%..
Application: it can be used as a square wave signal generator, generate square wave signal for experimental development.
generate square wave signal to control the motor driver.
generate adjustable pulse to control the relevant circuit (PWM dimming speed application etc)..
High Frequency Resolution: frequency in range 1Hz~999Hz, display resolution is 1Hz.
range 1.00kHz~9.99kHz, display resolution is 0.01kHz.
range 10.0kHz~99.9kHz, display resolution is 0.1kHz.
range 1kHz~150kHz, display resolution is 1kHz..
TTL Level Communication: the frequency meter is designed with single-chip TTL level communication, communication standard is 9600 bps..
LCD Display: the blue LCD clearly displays frequency and duty ratio, PWM output can set frequency and duty ratio independently..

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Gustard R26 Discrete R2R Decoder MQA Native DSD DAC with Streamer/Renderer PCM768K DSD512 XU216 K2 IIS Decoder(Silver)

Discrete R2R DAC: R-2R ladder DAC converts the digital signal to analog signal by switching resistors' array, it provides a more natural sound. However, this architecture needs precision resistors and deep development to archieve fine performance..
Native 1Bit DAC:support DSD 512 (via USB) and DSD 1024 (via IIS). The DSD streamdecoded by the independent 1 bit convertor without DSD to PCM converting.*Volume is fixed under this mode..
CPLD: Complex Programmable Logic Device：Signal routing.
Clock synthesization: Replace the input signal' s clock with precision oscillators (local or external). Interference from the input source' s clock is avoided. Function off: IIs, AES, COAX, OPT, BT.
PCM NOS, 1 Bit Function on: USB & LAN K2, ultra-low noise clock synthesizer: provides precision clock from local oscillators or external clock in..
LPF is specifically designed for the D/A converter using discrete devices. Final parameters of the circuit are adjusted with subjective listening. Different from IC s, discrete....

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Gustard R26 Discrete R2R Decoder MQA Native DSD DAC with Streamer/Renderer PCM768K DSD512 XU216 K2 IIS Decoder(Black)

Discrete R2R DAC: R-2R ladder DAC converts the digital signal to analog signal by switching resistors' array, it provides a more natural sound. However, this architecture needs precision resistors and deep development to archieve fine performance..
Native 1Bit DAC:support DSD 512 (via USB) and DSD 1024 (via IIS). The DSD streamdecoded by the independent 1 bit convertor without DSD to PCM converting.*Volume is fixed under this mode..
CPLD: Complex Programmable Logic Device：Signal routing.
Clock synthesization: Replace the input signal' s clock with precision oscillators (local or external). Interference from the input source' s clock is avoided. Function off: IIs, AES, COAX, OPT, BT.
PCM NOS, 1 Bit Function on: USB & LAN K2, ultra-low noise clock synthesizer: provides precision clock from local oscillators or external clock in..
LPF is specifically designed for the D/A converter using discrete devices. Final parameters of the circuit are adjusted with subjective listening. Different from IC s, discrete....

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