Product Characteristics
1. Adopting digital pilot and ID code identity authentication technology, the same frequency band can stack 10 sets of machines at the same time and never cross frequency 2. Adopting a phase-locked loop PLL frequency synthesis stabilization system, providing 200 channels 3. Adopting the latest high-frequency filter to filter out out of band interference signals to the maximum extent possible 4. High frequency circuit design with secondary frequency conversion, with extremely high sensitivity 5. Multiple noise suppression control circuits, rejecting external interference and receiving distances up to 250 meters. 6. Specially designed speech compression expansion circuit, greatly improving signal-to-noise ratio 7. Unique circuit design, dynamic, wide frequency response, and low noise
Parameter
System indicators RF range: 735.05-795.05MHz (A channel: 635-665, B channel: 665-695) Available bandwidth: 100MHz per channel (a total of 200MHz) Modulation method: FM frequency modulation Number of channels: Infrared automatic frequency matching 200 channels Operating temperature: -18 degrees Celsius to 50 degrees Celsius Muting method: automatic noise detection and digital ID code denoising Offset: 45KHz Dynamic range:>110dB Audio response: 60Hz-18KHz Comprehensive signal-to-noise ratio:>105dB Comprehensive distortion:<0.5% Receiver specifications: Receiving method: secondary frequency conversion superheterodyne, dual tuned true diversity receiving Oscillation mode: PLL phase-locked loop Intermediate frequency: First intermediate frequency: 110MHz, second intermediate frequency: 10.7MHz Antenna interface: TNC base Display method: LCD Sensitivity: -100dBm (40dB S/N) Spurious suppression:>80dB Audio output: unbalanced:+4dB (1.25V)/5K Ω Balance:+10dB (1.5V)/600 Ω Power supply voltage: DC12V Power supply current: 450mA Transmitter specifications: Oscillation mode: PLL phase-locked loop Output power: 3dBm-10dBm (LO/HI conversion) Battery: 2 "1.5V5 size" batteries Current:<100mA (HF),<80mA (LF) Service time (Alkaline battery): about 8 hours for high power and 12 hours for low power
