1kHz~100MHz Frequency Counter OLED Display Digital RF Frequency Meter High-Precision Measurement Signal Oscillators Amplifiers

PLJ-096OLED-L1 Frequency Counter High-Performance OLED Frequency Display METER Module Before purchasing Please refer to the advertising work video ThePLJ-096OLED-L1 is a cost-effective OLED frequency display module designed for continuous signal frequency measurement. It is suitable for displaying frequency values in transceivers and other equipment, as well as for general frequency measurement applications. Key Features Compact size, aesthetically pleasing display, and simple circuit design. Dual-button control for intuitive operation. Core component: Dedicated SJ8K24P-T chip-based 100 MHz frequency counter. RF signal input via IPEX connector with high measurement sensitivity and low operating current. On-board power electronic switch (can be disabled), ideal for battery-powered applications. Frequency reference: KDS/EPSON brand temperature-compensated voltage-controlled crystal oscillator (VC-TCXO) (±2.5 ppm). Unique gate control method and precise gate time algorithm (non-timer interrupt) for high measurement accuracy. Gate (display refresh) time: 0.1s / 1.0s, with real-time frequency display. Frequency measurement resolution: 10 Hz / 1 Hz (optional, with trailing digit blanking). Dual intermediate frequency (IF) design. IF values and add/subtract modes can be preset independently. UART serial output for measurement data, facilitating secondary development. All settings automatically saved to EEPROM and loaded on power-up. Technical Parameters Gate Time : 0.1s / 1.0s Performance Input Impedance: High impedance Measuring Range: 1 kHz to 100 MHz Resolution: 10 Hz (Gate Time = 0.1s) 1 Hz (Gate Time = 1.0s) Time Base Stability: ±2.5 ppm Sensitivity: IF Settings Dual independent IF design. IF adjustment step: 100 Hz. IF range: 0 to 99.9999 MHz. Add or subtract IF mode configurable. Default IF value: 0 (displayed value = signal frequency). Two IF values can be set separately without interference. Frequency Reference 3225 package KDS/EPSON brand 3.000 MHz VC-TCXO. Frequency stability: ±2.5 ppm. Operating Voltage : DC 4.5–9 V (5 V recommended). Operating Current : Display : 0.96-inch OLED, up to 8 digits. Dimensions : 27.3 × 27.8 × 19 mm (L × W × H). On-Board Interfaces RF IN: IPEX socket (1st generation). 5V IN: XH 2.54-2P power connector. Accessories RF cable: IPEX to SMA (female center pin), 15 cm. Power cable: XH 2.54-2P, 15 cm.