50/60Hz UHF Wireless Handheld Microphone Phase Lock Loop Frequency Control

The Voice of China Wireless Microphone System Phase Lock Loop frequency control

Receiver Parameter                                                                     

Transmitter Parameter (Handheld)

Receiver Features 

·  Rugged metal chassis with soft-touch controls.  

·  Advanced diversity technology maintains dependable wireless signal quality.

·  Pilot tone squelch for eliminating RF interference when transmitter is turned off.

·  Enhanced AF frequency range

·  Built-in spectrum analyzer to scan and display interference frequency clearly.

·  Transmitter Sync.

·  600 selectable frequencies across 30MHz bandwidth.

·  OLED display screen delivers a bright, clear viewing in day/night environments.

·  Equipped with both XLR balanced and Ø6.3mm unbalanced outputs.

·  Offers an exceptional value in both performance and price, for both working musicians and sound installers

Transmitter Features

·  Rugged, ergonomically designed housing.

·  120MHz ultra-wide bandwidth.

·  Equipped with 4 pin mini XLR connector.

·  Infrared automatic transmitter sync.

·  Very easy and quick to use thanks to OLED display

·  1 x AA batteries – up to 5 hours continue use.

Products Supply Scope

.  Handheld system: 1* AM 300 receiver + 2* AH 300 handheld microphones

.  Lavalier system: 1* AM 300 receiver + 2* AP 300 bodypack transmitters with lavalier microphone

.  Headset system: 1* AM 300 receiver + 2* AP 300 bodypack transmitters with headset microphone

.  1 power supply unit

.  2 antennas

.  1 ¼” (6.3 mm) audio connecting cable

.  4 AA size batteries ( handheld system ) / 2 AA size batteries ( lavalier / headset system )

.  Operating instructions.

Application

Suitable for Large-scale performances ,small and medium-sized performances, outdoor singing and speeches, KTV boxes, classrooms, gymnasiums, offices and government agencies

Welcome to our company ,a one-stop solution for your Microphone business

 The key element of acoustoelectric conversion is electret diaphragm. It is a very thin plastic film, in which a layer of pure gold film is evaporated on one side. Then, after the electret of high voltage electric field, there are anisotropic charges on both sides. The evaporated gold surface of the diaphragm is outward and connected with the metal shell. The other side of the diaphragm is separated from the metal plate by a thin insulating lining ring. In this way, a capacitance is formed between the evaporated gold film and the metal plate.When the electret diaphragm encounters acoustic vibration, the electric field at both ends of the capacitor changes, resulting in an alternating voltage varying with the change of acoustic wave. The capacitance between the electret diaphragm and the metal plate is relatively small, generally tens of PF. Therefore, its output impedance value is very high (XC = 1 / 2 ~ TFC), about tens of megaohms or more. Such a high impedance cannot be directly matched with the audio amplifier.