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1Hz-75MHz Frequency Counter 7V-9V 50mA DIY Kit Cymometer Module Tester Meter

$ 5.64

Availability: 22 in stock
  • Condition: New
  • Restocking Fee: No
  • Return shipping will be paid by: Buyer
  • All returns accepted: Returns Accepted
  • Item must be returned within: 30 Days
  • Brand: Unbranded/Generic
  • Refund will be given as: Money Back
  • MPN: Does Not Apply

    Description

    Features:
    Frequency range: 1Hz-75MHz (in fact, it can work up to 78MHz).
    Four-digit or five-digit display resolution (for example, x.KHz xxx, x.xxx.MHz, or xx.xxMHz).
    Automatic switching range with different gate times.
    addition or subtraction of programmable frequency offset.
    Input impedance: 1.1 M, parallel to about 10pF.
    Input sensitivity: Typically less than 20mV RMS from 1Hz-100KHz, rising to 35mV at 20MHz and 75mV at 50MHz (150mV at 78MHz).
    Current consumption: 50mA with 7 to 9 V input.
    Optional (configurable) power-saving mode that automatically shuts off the display if the frequency does not change significantly within 15 s.
    Specifications:
    Type: DIY Kit
    Frequency Range: 1Hz-75MHz
    50MHz Input Impedance: 1.1M, Parallel with about 10PF
    Resolution: Max. 1Hz
    Current Consumption: 50mA with 7 to 9V Input Jack
    Socket of Input: BNC
    Display: Digital LED Display
    PCB Size: 80x58mm/3.15x2.28"
    Quantity: 1 Set
    Note:
    Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
    Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
    No Retail Package
    Package Contents:
    1 Set x Frequency Meter DIY Kit
    List Of Materials:
    Resistors (0.25 W , 1%):
    8 x R1-R8 1 k
    2 x R9, R15 10 k
    1 x R10 100 k
    1 x R11 1 M
    1 x R12 220
    1 x R13 56 k * according to the different batches of C3355, the resistance can change
    1 x R14 470
    Capacitors:
    1 x C1 470n Polypropylene
    1 x C2 100 p Ceramics
    2 x C3 C5 100n Polypropylene
    1 x C4 47u Electrolytic
    2 x C6, C8 10u Electrolytic
    1 x C7 6-40 p Variable
    2 x C14, C15 22 p Ceramic
    Integrated Circuits:
    1 x U1 PIC16F628A (Programmed) + 18pin IC socket
    1 x U2 LM1117-5V SMD
    Transistors
    1 x Q1 C945
    1 x Q2 J310
    1 x Q3 C3355
    Diodes:
    6 x D1-D6 1N4148
    1 x D7 1N5819
    Various:
    1 x J1 SIL Socket & header 16Pin
    1 x J2 BNC socket
    1 x J3 DC_CZ_ZM socket adapter DC
    1 x switch button SW1 AN_SW
    1 x switch button SW2 SW2X2
    1 x 1 Crystal 20 MHz
    2 x SG1 7-segment 2-digit display common cathode Red
    1 x SG3 7-segment 1-digit display common cathode Red
    1 x PCB Main
    1 x PCB display
    2 x Copper pillar + + Spring screw Washer