Difference between revisions of "Frequency Counter 6 Digits"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) |
Blwikiadmin (talk | contribs) |
||
Line 52: | Line 52: | ||
* 2.1x5.5 DC jack | * 2.1x5.5 DC jack | ||
* BNC front panel jack | * BNC front panel jack | ||
− | * [[Enclosure_Ideas# | + | * [[Enclosure_Ideas#100_x_60_x_25_mm_Black_Plastic_Enclosures|Plastic enclosure]] |
== Videos == | == Videos == |
Revision as of 17:29, 27 November 2020
Features
- AliExpress listing
- Frequency reference with temperature compensation type voltage controlled crystal oscillator (2.5 ppm VC-TCXO).
- Adopts gate control mode and the accurate time algorithm is unique.
- Gate (refresh) time is 0.1 seconds, real-time display of frequency.
- The precision of frequency measurement 10Hz/100Hz (Rotated the right one) optional.
- Dual frequency design, intermediate frequency value and plus / minus mode can be preset, and do not influence each other.
- Display driver using the LED chip digital tube display, high brightness, less external interference.
- Adopts six 0.56 inch digital tube display, automatic blanking invalid zero, eight stage adjustable brightness.
- Simple circuit, reasonable structure, double button control, simple operation.
- All settings are automatically saved, boot directly call.
Specification
- Working voltage: DC 8V-15V (reverse polarity protection)
- Working current: 90mA (max)
- Input impedance: high resistance
- Measuring range: 0.1 MHz to 65 MHz
- Accuracy: 10 Hz
- Sensitivity: better than 60mVPP
- Display digits: Six common anode LED display , the highest display six digits
- Size: 9cm x 2.5cm x 2cm .
- Connectors
- RF IN (input): HX2.54-2P socket
- ICSP (programming interface): 2.54-6P Pin
- DC IN (Power Interface): HX2.54-2P socket
Connections
Testing
Build into case
- Power and input wired to card
- Jacks were too tall for box depth to close securely
- Two pushbuttons wired to Upper/Lower pushbuttons on card
- Mini-360 Switching Regulator
- 9-24 VDC input
- 7 VDC output
- Hot glued into case
- 2.1x5.5 DC jack
- BNC front panel jack
- Plastic enclosure
Videos