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- For Galaxy Tablet S9FE Plus & S9FE
- For Galaxy A Series A06+A06 S+A16 5G
- For Samsung Galaxy F34 5G
- For Oppo F27 Series
- For Xiaomi 15 Series
- For Galaxy S20 Series
- For vivo Y16 & Vivo T2x
- Samsung Galaxy Z Series Cases
- For iPhone 16 Series
- For Vivo X Fold Series
- For Motorola Razr 40 Ultra
- For Samsung Galaxy S24
- For Vivo X100
- For Honor Cases
- For Motorola Razr 50 Ultra
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- High Sensitivity 1Hz-50MHz Frequency Meter Counter Measurement Tester Module 7V-9V - Assembled Tester High Sensitivity 1Hz-50MHz Frequency Meter Counter Measurement Tester Module 7V-9V - Assembled Tester
- Description
- Reviews
Frequency range: 1Hz-50MHz(in fact, it can work up to 78MHz)
Four or five digits resolution (display for example, x.xxx KHz, x.xxx MHz, or xx.xx MHz)
Automatic range switching with different gate times
Programmable addition or subtraction of the frequency offset
Input impedance: 1.1M, in parallel with about 10pF
Input sensitivity: tipcally 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 9V input
Optional (configurable) power-saving mode which automatically turns the display off if the frequency didn't change significantly within 15s
Specifications:
Type: Assembled Tester / DIY Kit
Frequency Range: 1Hz-50MHz
Input Impedance: 1.1M, in parallel with about 10pF
Resolution: Max. 1Hz
Current Consumption: 50mA with 7 to 9V Input
Input Socket: BNC
Display: LED Digital Display
PCB Size: 79 * 62mm / 3.1 * 2.44in
Bill Of Materials
Resistors(0.25W, 1%)
8 R1-R8 1k
2 R9, R15 10k
1 R10 100k
1 R11 1M
1 R12 220
1 R13 56k * According to the different batches of C3355, the resistance may change
1 R14 470
Capacitors:
1 C1 470n Polypropylene
1 C2 100p Ceramic
2 C3 C5 100n Polypropylene
1 C4 47u Electrolytic
2 C6, C8 10u Electrolytic
1 C7 6-40p Variable
2 C14, C15 22p Ceramic
Integrated Circuits
1 U1 PIC16F628A (Programmed) + 18pin IC socket
1 U2 LM1117-5V SMD
Transistors:
1 Q1 C945
1 Q2 J310
1 Q3 C3355
Diodes:
6 D1-D6 1N4148
1 D7 1N5819
Miscellaneous:
1 J1 16Pin SIL Socket & header
1 J2 BNC Socket
1 J3 DC_CZ_ZM DC adapter socket
1 SW1 AN_SW Push button switch
1 SW2 SW2X2 Push button switch
1 X1 Crystal 20MHz
2 SG1-SG2 Red 2digit common cathode 7-segment display
1 SG3 Red 1digit common cathode 7-segment display
1 Main PCB
1 Display PCB
2 Copper Pillar +Screw +Spring Washer
Assembly Diagram:
https://www.dropbox.com/s/0yjnpjtfp7htck2/Aassembly%20diagram%20for%20E1822.pdf?dl=0
Bill of Materials:
https://www.dropbox.com/s/o5g7abvwuk7fswp/Bill%20of%20materials%20for%20E1822.pdf?dl=0
User Manual:
https://www.dropbox.com/s/nrpzdw4nzp5n5cx/The%20main%20features%20of%20E1822.pdf?dl=0
Package included:
1 x Frequency Meter