Features • Advanced Measurement Technology: Features Microchip's PIC16F648A for frequency measurements up to 1000MHz, ensuring reliability and accuracy in various applications • Exceptional Frequency Stability: Utilizes a temperature-compensated VC-TCXO with a tolerance of 2.5 ppm, providing consistent performance across different environmental conditions • Innovative Gate Control Design: Employs a unique gate control and time algorithm for non-timed interrupts, enhancing the efficiency and responsiven of frequency readings • Versatile Display Refresh Options: Offers adjustable gate times of 0.01 seconds, 0.1 seconds, and 1.0 seconds for real-time frequency display, accommodating diverse user needs and preferences • Multi-Channel Flexibility: Designed with a single-ended input for three-channel frequency measurement (low, high, and auto), allowing for comprehensive analysis of signal frequencies Features: 1、With Microchip's PIC16F648A, 2.4 GHz frequency meter. 2、Using temperature-compensated voltage controlled crystal oscillator (2.5 ppm VC-TCXO). 3、Unique gate control and time algorithm (non-timed interrupt). 4、Gate (display refresh) time 0.01 seconds / 0.1 seconds / 1.0 seconds, real-time display frequency value. 5、Single-ended input design, three-channel frequency measurement (low channel / high channel / Auto Channel). Specification: PLJ-8LED is a cost-effective frequency display component of 8-bit digital tube display. It is mainly used for the display of frequency values of transceiver and other equipment, and can also be used for conventional frequency measurement. This component has the characteristics of compact and delicate, reliable performance, good visual effect and low cost. Features: With Microchip's PIC16F648A, 2.4 GHz frequency meter. Using temperature-compensated voltage controlled crystal oscillator (2.5 ppm VC-TCXO). Unique gate control and time algorithm (non-timed interrupt). Gate (display refresh) time 0.01 seconds / 0.1 seconds / 1.0 seconds, real-time display frequency value. Single-ended input design, three-channel frequency measurement (low channel / high channel / Auto Channel). Dual frequency design, value and IF / down mode can be preset separately. Using eight 0.56 inches high brightn digital display, eight adjustable brightn. Circuit is simple and reasonable structure, two-button control, simple . The settings are automatically saved, boot directly call. Specification: Model:PLJ-8LED-H Type: Backlight font red, Backlight font blue(Optional) 1. Gate time: 0.01 S 0.10 S 1.0 S 2. Measurement channels (channels are low impedance): low channel Measuring range: 0.1 MHz ~ 60 MHz Accuracy: ± 100Hz (0.01 1s gate time) ± 10Hz (0.1 seconds gate) Package List