I. Product Introduction
The UHF PLL wireless system is an intelligent, multifunctional system. It adopts a UHF dual-channel multi-frequency point design, uses high-precision phase-locked loop frequency synthesis PLL technology, has automatic frequency search and selection and ACT (automatic channel tracking) functions, manual frequency adjustment, frequency locking, and both the host and handheld units have battery power display and electronic volume buttons. It is equipped with five major functions, a large and clear LCD display, and a cutting-edge and fashionable appearance design.
 
Features
1. Uses the UHF 610-670MHz frequency band, adopts a phase-locked loop frequency stabilization system, and has 200 selectable channels.
2. Automatic frequency scanning function: Align the infrared frequency matching window of the transmitter with the infrared frequency matching window of the receiver, and the infrared light will automatically search for the corresponding frequency point.
3. Frequency locking function: Press and hold the search button, and the display screen will show the frequency locking symbol. To unlock, press and hold again.
4. Independent volume control.
5. Two independent balanced output jacks.
6. One 6.35mm mixed output jack.
7. LCD display on the receiver and transmitter, clearly showing signal strength, audio dynamics, and operating frequency.
8. Effective distance: 80 meters.
9. DC12V power adapter.
10. Specifications (chassis): 310 x 220 x 40mm (L x W x H)
11. Gross weight/set: 4.1 kg.
 
System Parameters:
Carrier Frequency 610-670MHz
Modulation Method FM
Bandwidth 50MHz
Channels 2×100 channels
Frequency Stability ±0.005%
Dynamic Range >105dB
Maximum Modulation ±68KHz
Harmonic Distortion ≤0.5%
Frequency Response 50Hz-18KHz(±3dB)
Image Rejection Ratio 80dB
Signal-to-Noise Ratio >105 dB
Effective Distance >100m
Operating Temperature -10°C—+40°C
Receiver
Power Supply DC 12V/ 500mA
Power Consumption 3W
Receiving Sensitivity 5dBµV
Audio Output Mixed output: 400mV/k3, Balanced output: 250Mv/600
Transmitter
Transmission Power Maximum: 30mW
Battery (1.5V AA×2)
Continuous Battery Life High: >10 hours, Low: >15 hours