Aideepen | 1kHz to 100MHz Frequency METER OLED Frequency Display High-Precision Frequency Counter FOR RF Measurement Ham radio transceiver

Features:1. Compact and aesthetically pleasing design with dual-button operation and straightforward circuitry2. On-board power supply electronic switch supporting battery operation with shielding capability3. Temperature-compensated VC-TCXO timing base delivering ±2.5ppm frequency accuracy and high stability4. Unique gate control and algorithm employing non-timed interrupts for enhanced measurement precision5. Settings automatically saved to EEPROM, directly accessible at power-up without reconfigurationParameters:Product Name: Frequency Display ModuleOperating Voltage: DC 4.5-9V (5V recommended)Operating Current: Display: 0.96-inch OLED screenGate Time: 0.1 / 1.0 secondsMeasurement Accuracy: 10/1HzMeasurement Range: 1KHz-100MHzInput Impedance: High impedanceTime Base Stability: ±2.5ppmMeasurement Data Output: UART serial outputOn-board Interfaces: Signal input, power supply interfaceApplication Scenarios: Radio frequency display, radio frequency measurement, oscillation circuit frequency measurement, crystal oscillator frequency screening, embedded applications, general frequency measurementDescription:The PLJ-096OLED-L1 is a cost-effective OLED frequency display module designed for continuous signal frequency measurement. Primarily used for displaying frequency values in transceivers and similar equipment, it is also suitable for general frequency measurement. Employing a unique gate control method and precise gate timing algorithm (non-timed interrupt), it achieves high measurement accuracy.Precautions:1. Avoid exposing the instrument to high temperatures, humidity, or dusty environments, and prevent subjecting it to severe vibration.2. The clock reference was calibrated using GPSDO prior to shipment, with sensitivity optimised. Adjustment is unnecessary unless essential.3. The on-board signal input socket is a fragile component; handle plug insertion/removal with care.Usage Q&A:1. Does this module interfere with transceivers?Answer: It is impossible to claim zero interference. Microcontrollers, crystal oscillators, etc., emit some radiation externally, though the intensity is generally low. Design measures have been implemented to mitigate this. Additionally, interference depends on the module's distance from transceiver sensitive components and the transceiver's characteristics. If interference occurs, try relocating the module or adding shielding.2. Why does the frequency reading fluctuate?Answer: Firstly, ensure the input signal quality (strength, stability, etc.) meets the module's minimum requirements (see technical specifications). Secondly, verify the power supply quality – excessive ripple may be the cause. Alternatively, adjust the sensitivity trimming resistor to improve stability.3. Why does the display fluctuate irregularly when no measurement signal is connected?Answer: First, check whether the power supply ripple for this module is excessive. Then, verify if there is strong signal radiation from other sources near the module.Delivery List:Module1Signal connection cable1Power connection cable*1