ITEM NAME:Digital LED 1Hz-50MHz Crystal Oscillator Frequency Counter Meter Tester Kit M&O Color: Red SIze: 8 x 5.4cm Suitable For: Crystal measure (4M, 16M crystal) Crystal measure (20M, 11.0592M crystal) Features This is a PIC microcontroller-based frequency meter, subtraction frequency is set with crystal measurement functions and programmable, five digital display, easy and intuitive, all using in-line components, the circuit is simple and easy to make 1. measurable frequency range of 1 Hz -50 MHz (1Hz-50MHz); 2. The most commonly used measure of the oscillation frequency of the crystal; 3. Five-digit precision resolution (eg 0.0050 kHz, 4.5765 MHz, 11.059 MHz); 4. Automatic range conversion, without human handover; 5. Programmable subtraction frequency setting, such as a transceiver for measuring equipment; 6. selectable power saving mode within 15 seconds if there is no significant change in the frequency automatically turn off the display; 7. You can use a common USB 5V interface, power supply, can also use an external DC power supply or 9V battery. 8. A small number of elements, all in-line components, installation is simple. Instruction manual 1. All line elements, PCB printing press to the correct welding, 2. After welding is completed with a standard source input signal, 3. Adjust the yellow adjustable capacitor so that the display is equal to the value of the signal frequency Packing Included ： 1 x 1Hz-50MHz frequency meter (DIY kits, not assembled).Adjust the yellow adjustable capacitor so that the display is equal to the value of the signal frequency. selectable power saving mode within 15 seconds if there is no significant change in the frequency automatically turn off the display;.
