{"product_id":"plj-096oled-h1-frequency-counter-20mhz-2-7ghz-0-96in-oled-display-with-2-5ppm-tcxo-for-rf-signal-measurement","title":"PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display 2 5ppm","description":"\u003cp\u003eDiscover the PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display 2 5ppm — a standout decor pick featuring compact design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eCondition: New\u003c\/p\u003e\u003cp\u003eType: Module\u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003cp\u003e1. Compact and aesthetically pleasing design with dual-button operation and simplified circuitry for ease of use\u003c\/p\u003e\u003cp\u003e2. Unique gate control algorithm and non-interrupt design enhance measurement accuracy\u003c\/p\u003e\u003cp\u003e3. Dual independent intermediate frequency presets with simultaneous addition\/subtraction modes without interference\u003c\/p\u003e\u003cp\u003e4. Automatic settings save function enables immediate use upon startup without reconfiguration\u003c\/p\u003e\u003cp\u003e5. Widely applicable for measuring requirements in radios, walkie-talkies, oscillation circuits, etc.\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eProduct Name: Frequency Display Module\u003c\/p\u003e\u003cp\u003eOperating Voltage: DC 8-10V (9V recommended)\u003c\/p\u003e\u003cp\u003eOperating Current: \u0026lt; 60mA (Test Condition: DC 9V supply)\u003c\/p\u003e\u003cp\u003eDisplay: 0.96-inch OLED\u003c\/p\u003e\u003cp\u003eGate Time: 0.64 \/ 1.0 seconds\u003c\/p\u003e\u003cp\u003eMeasurement Accuracy: 100\/64Hz\u003c\/p\u003e\u003cp\u003eMeasurement Range: 20MHz-2.7GHz\u003c\/p\u003e\u003cp\u003eInput Impedance: High Impedance\u003c\/p\u003e\u003cp\u003eTiming Stability: ±2.5ppm\u003c\/p\u003e\u003cp\u003eMeasurement Data Output: UART Serial Port Output\u003c\/p\u003e\u003cp\u003eOn-Board Interfaces: Signal Input, Power Interface\u003c\/p\u003e\u003cp\u003eApplication Scenarios: Radio frequency display, walkie-talkie frequency measurement, oscillation circuit frequency measurement, embedded applications, general frequency measurement\u003c\/p\u003e\u003cp\u003eDescription:\u003c\/p\u003e\u003cp\u003eThe PLJ-096OLED-H1 is a cost-effective OLED frequency display module designed for continuous signal frequency measurement. Primarily used for displaying frequency values in transceivers and similar devices, it also supports general-purpose frequency measurement. It employs a unique gate control method and precise gate timing algorithm (non-timed interrupt) to achieve high measurement accuracy.\u003c\/p\u003e\u003cp\u003ePrecautions:\u003c\/p\u003e\u003cp\u003e1. Avoid exposing the device to high temperatures, humidity, dusty environments, and prevent severe vibration.\u003c\/p\u003e\u003cp\u003e2. The clock reference was calibrated with GPSDO and sensitivity optimized during factory calibration. Do not adjust settings unless necessary.\u003c\/p\u003e\u003cp\u003e3. The onboard signal input connector is a fragile component; handle plug insertion\/removal gently.\u003c\/p\u003e\u003cp\u003eFAQ:\u003c\/p\u003e\u003cp\u003e1. Does this module interfere with transceivers?\u003c\/p\u003e\u003cp\u003eAnswer: Zero interference is impossible. Microcontrollers, crystal oscillators, etc., emit radiation, though at low intensity. Design measures mitigate this. Interference also depends on module placement relative to transceiver components and transceiver characteristics. If interference occurs, relocate the module or add shielding.\u003c\/p\u003e\u003cp\u003e2. Why is the frequency display unstable?\u003c\/p\u003e\u003cp\u003eAnswer: First, ensure the input signal quality (strength, stability, etc.) meets the module's minimum requirements (see technical specifications). Additionally, ensure power supply quality—avoid excessive ripple—or adjust the sensitivity trimming resistor to improve stability.\u003c\/p\u003e\u003cp\u003e3. Why does the display fluctuate irregularly when no measurement signal is connected?\u003c\/p\u003e\u003cp\u003eAnswer: First, check if the power supply ripple for this module is excessive. Then, inspect for strong signal radiation near the module.\u003c\/p\u003e\u003cp\u003eShipping List:\u003c\/p\u003e\u003cp\u003eModule x1\u003c\/p\u003e\u003cp\u003eSignal Cable x1\u003c\/p\u003e\u003cp\u003ePower Cable x1\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display?\u003c\/h4\u003e\u003cp\u003eA: The PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display is a quality decor pick. Compact and aesthetically pleasing design with dual-button operation and simplified circuitry for ease of use 2.\u003c\/p\u003e\u003ch4\u003eQ: How do I use the PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display?\u003c\/h4\u003e\u003cp\u003eA: The PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display is ready to use right out of the box and makes an easy addition to your decor lineup.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display?\u003c\/h4\u003e\u003cp\u003eA: The PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display stands out in our decor range — Unique gate control algorithm and non-interrupt design enhance measurement accuracy 3.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PLJ-096OLED-H1 Frequency Counter 20MHz-2 7GHz OLED Display is a quality decor pick. 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