K-100 (600CH) year warranty PLL phase-locked loop circuit design. 600 frequency points. Built-in Mute & locked loop inhibit interference. Special anti-jamming circuit design. Microprocessor controlled automatic selection information function, can automatically select the stronger of two antenna signal input, and no function of the general receiver compared to its higher signal reception, the use of distance, without receiving dead things from happening effectively avoid interruption or noise generated output. Menu up (UP), down (DOWN) buttons and other control functions. Provides balanced XLR & unbalanced TRS ￠ 6.3 mm output socket. Technical parameters: K-100 Wireless Receiver Carrier Frequency Range 710MHz --- 865MHz Frequency Oscillation Mode PLL loop Total 600 CH Channel Frequency Response 50Hz --- 18KHz Working distance 200 feet width 24MHz carrier frequency stability of ± 5PPm ≤ 10KHz Image Interference Ratio> 80dB Signal to Noise Ratio> 105dB (1KHz-A) Sensitivity-105dBm (12dB S / N AD) THD 110dB Stability ± 0.005% Modulation Deviation ± 48KHz Spurious <-60dBc RF Output Power 10mW Power Consumption ≤ 100mA @ 3 V power supply UM3, AAA 1.5v × 2 Function Display LCD