Best Pll Frequency Control

XTUGA J-3 Professional True Diversity UHF Instrument Microphone Wireless Transmission System for Saxophone Transmitter Receiver 492ft Transmission Range,Plug and Play

Saxophone-specific UHF wireless microphone transmission system. True diversity wireless receiver and transmitter, dual antenna diversity reception. Stable reception without blind zone, high frequency stability, no delay, high-recovery pickup,Frequency rang:550-580Mhz.
With PLL combined technology. 100 channel free choice, infrared frequency function, using secondary frequency conversion circuit design, with sensitivity, multiple squelch control and anti-interference function.
Flexible gooseneck for optimum microphone positioning.No more tripping on cables.The microphone transmitter can be directly clipped to the saxophone and the horn.Experience complete freedom of movement while performing.
High fidelity and long range, signal stability.operating range up to 150 meters (492Ft).The receiver and transmitter are powered by a large capacity rechargeable lithium battery. Working hours are about 5 hours. Comes with a USB cable for convenient recharging.
Equipped with LED display.The LCD display shows you the frequency, microphone volume as well as the battery level. Change the microphone volume from the receiver is easy. The working status is clear at a glance.

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Gemini Sound UHF Professional Stage Performance Microphone with Wirless Reciever Dual Wireless Headset Mic System

PROFESSIONAL SOUND QUALITY - This wireless microphone system offers high-quality voice reproduction with incredible clarity and reliability. Ideal for....
EXCELLENT WIRELESS PERFORMANCE - This portable audio system features a state-of-the-art UHF single-channel receiver with reliable frequency stability....
WIRELESS AND PORTABLE HEADSET/LAVALIER - This professional UHF system includes (2) noise-free headset lavalier microphone and (1) receiver.....
CONVENIENT CONTROL SYSTEM - This wireless microphone features full-range volume rotary control and an ultra-fast microcomputer controlled PLL....

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Gemini Sound UHF Professional Stage Performance Microphone with Wirless Reciever Single Wireless Headset Mic System

PROFESSIONAL SOUND QUALITY - This wireless microphone system offers high-quality voice reproduction with incredible clarity and reliability. Ideal for....
EXCELLENT WIRELESS PERFORMANCE - This portable audio system features a state-of-the-art UHF single-channel receiver with reliable frequency stability....
WIRELESS AND PORTABLE HEADSET/LAVALIER - This professional UHF system includes (1) noise-free headset lavalier microphone and (1) receiver.....
CONVENIENT CONTROL SYSTEM - This wireless microphone features full-range volume rotary control and an ultra-fast microcomputer controlled PLL....

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XTUGA CM280 UHF 8 Channels Professional Gooseneck Microphone System Conference Mics Fixed frequency Super-low background noise&designed for large conferences, public speaking engagements (Frequency B)

UHF Wireless Microphone system:Ultra-high frequency 8-Channel UHF Gooseneck Conference wireless Microphone receiver and four professional antennas with high frequency stability and accuracy. The PLL digital phase-locked loop multi-channel frequency synthesis technology has small interference, more reliable transmission..
It consists of a eight-channel wireless receiver and eight transmitters of gooseneck condenser microphone with base,is a set of wireless conference equipment .It is a wireless system designed for large meeting places.UHF Professional Gooseneck Microphone with a flexible gooseneck, you can adjust to the best angle..
Independent mic volume control:Individual volume control to precisely balance and adjust vocal sound. Red LED lights above each volume knob enable users visualize the pair up between receiver and transmitters..
Metal receiver features 8 XLR outputs and one 1/4” audio output jack to connect to your amplifier, mixer, or other PA system..
This Microphone system comply with new FCC frequency rules.Fixed Frequencies:A：520.10Mhz,525.10Mhz,501.00Mhz,511.50M....

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Geva NIORFNIO 15W FM Transmitter Broadcast Wireless Adapter Stereo Station Long Range for Drive-in Church School Cars Supermarket AUX Input 2AQIX-T15B

【Adjustable frequency】: Machine coverage frequency is FM full range 76-108MHz. Effortlessly avoid local radios and enjoy Hi-Fi stereo, the transmission distance of 3-4 km in the open air. FCC certified. FCC ID: 2AQIX-T15B.
【Channel switching】: switchable stereo, mono Designed with advanced modulation system and built-in PLL frequency, audio pre-emphasis, limiter, and low-pass filter circuit..
【High-fidelity Bluetooth】: you can connect wirelessly to mobile phones, tablets and other Bluetooth devices Good heat dissipation: using high-quality dual ball bearing fan, reasonable heat dissipation channels, excellent thermal performance..
【PC control】: connect your computer via micro USB interface, plus supporting intelligent broadcasting software, to achieve diversification unattended broadcast. (time switch, time to play the specified music, etc) 1/4 wavelength of strong magnetic sucker antenna, can be tightly adsorbed on the car roof or any metal flat objects, easy to move the antenna to the outside, the roof, balcony or window, more effective transmission and reception of electron..
【Excellent Heat Dissipation】: Aluminum alloy metal shell, good cooling effect, quiet fan With PC control, Intelligent Broadcast..

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

... ability to broadcast your favorite music and audio sources to any FM radio..
[Excellent Heat Dissipation] : This FM broadcast transmitter with a fan heat sink and high-quality aluminum alloy material, which can effectively extend the life of the device. Even if works for a long time, it will not be hot..
[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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15W Wireless Audio Amplifier Portable Broadcast FM Transmitter Radio Station Equipment

This FM stereo transmitter that can be used for factories, schools, supermarkets, farms, Office space or create your own radio station..
Equipment using advanced modulation system and built-in PLL frequency, audio pre-emphasis,limiter,and low-pass filter circuit..
The Control circuit board design and amplifier design to reduce noise, so sound quality is even better..
Well-shielded, compact structure, small size, generous appearance, plug and play, very easy to use..
It can easy broadcast anywhere you want,home,apartment,church, school,club,camping,backyard,resident village..

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CW QRP Shortwave Radio Kit - CW Transceiver Shortwave Radio Kit

The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....

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Modern Radio Reception (Classic Reprint)

200mm Ferrite AM Antenna Bar Allows For Best AM Reception, 10 Memory Preset Stations (5 FM, 5 AM).
PLL Synthesized Tuning System for Excellent Reception and Stereo Audio Performance.
Alarm by Radio or HWS (Humane Wake System) Buzzer and Sleep Timer.
Includes Switching AC Adapter 100-240V, 50/60Hz.
Easy to Read LCD Display with Backlight and Battery Power Indicator.
TUNER: FM – Frequency (megahertz) = 87.5 – 108. Frequency (kilohertz)= 522 – 1629 (9k)/ 520 – 1710 (10k).

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