Meters -1mhz-1000mhz 6led rf signal frequency counter counter cymometer meter green Highlights generic brand 1mhz-1000mhz 6led rf signal frequency counter counter cymometer meter green Description: Master by the United States Microchip (Microchip) PIC16F648A as the core of the 65MHz frequency counter. Japan KDS frequency reference temperature controlled crystal oscillator ( 2.5 ppm VC-TCXO) Unique gate control and precise time algorithm (non-timer interrupt) Gate (display refresh) time 0.64 seconds , real-time display frequency value. 10Hz/100Hz frequency measurement accuracy (right digital) is optional. Dual IF design, IF value and plus/minus preset mode can be used alone, independently of each other. Display driver with special LED display chip, high-brightness digital tube, less foreign interference. ARK six .56 inch using digital display, zero invalid automatic blanking, eight adjustable brightness. Circuit is simple and reasonable structure, two-button control, simple operation. The parameters are automatically saved, the start is called directly. specification: 1. The gate time (gate time) 0.64 seconds 2. Measure the channel (measurement channels) Input impedance (Impedance): high resistance Measurement range: 1 MHz to 1000 MHz Accuracy: 100 Hz / 1000 Hz Sensitivity: HM8134-2 test data (for reference only) Test frequency (MHz) 5 10 30 60 100 150 200 300 450 Sensitivity (mV RMS) 50 40 20 20 30 30 30 40 60 Test frequency (MHz) 500 550 600 700 800 900 1000 1100 1200 Sensitivity (mV RMS) 80 90 90 120 150 180 230 360 410 , mid-range 0 ~ 999.999 MHz, can be set to add or subtract IF IF, the factory default is zero mid-range frequency (ie signal frequency). The frequency reference (frequency reference) Warming 13.000MHz 5032 package uses a voltage-controlled crystal oscillator (VC-TCXO), frequency stability of 2.5 ppm. 5. Working voltage (working voltage) DC input: DC 8V ~ 12V (9V recommended) 6. Working current (current) (Supply voltage: 9V Brightness: 4 full brightness) Digital models: Working current (mA ) SMA410563 red 100 SP610561B blue 85 SP810561G3 green 85 SP510561Y2 yellow 100 SP2105619 Army green 100 7 shows the median (Display digits) Six common anodic digital display, the highest six-digit display. 8. Screen brightness (Helligkeit) The brightness of eight LEDs is adjustable, the factory setting is four brightness. 9. Physical dimensions (physical dimensions) Length width height (Length Width Height): 91 mm 28 mm 20 mm 9. Module quality (weight) 40 g 10. On-board interface (Schnittstellen) RF IN (input of signal input signal): HX2.54-2P side port output ICSP (programming interface programming interface): side port HX2.54-6P DC IN (interface programming interface power supply interface) pins power supply): HX2.54-2P side port output Dimensions: Approx. 91*28*20mm/3.58x1.10x0.79inch Package includes: 1 piece of signal frequency meter