Frequency Counter 8 Digits

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Fc8 rot-720px.png

Counter[edit]

  • RF Signal Frequency Counter
  • 0.1Hz-60MHz 20MHz to 2400MHZ 2.4GHz
  • 8 Digits LED Digital Frequency Counter

Description[edit]

  • With Microchip's PIC16F648A, 2.4 GHz frequency meter.
  • Using temperature-compensated voltage controlled crystal oscillator (2.5 ppm VC-TCXO).
  • Unique gate control and precise time algorithm (non-timed interrupt).
  • Gate (display refresh) time 0.01 seconds / 0.1 seconds / 1.0 seconds, real-time display frequency value.
  • Single-ended input design, three-channel frequency measurement (low channel / high channel / Auto Channel).
  • Dual frequency design, value and IF / down mode can be preset separately.
  • Using eight 0.56 inches high brightness digital display, eight adjustable brightness.
  • Circuit is simple and reasonable structure, two-button control, simple operation.
  • The settings are automatically saved, boot directly call.

Specification[edit]

  • Gate time
    • 0.01 second
    • 0.10 second
    • 1.0 second

Low channel[edit]

  • Measuring range: 0.1 MHz -60 MHz
  • Accuracy: 100Hz (0.01 1s gate time)
    • 10Hz (0.1 seconds gate)
    • 1Hz (1.0 seconds when the gate)
  • Low channel sensitivity
    • 0.1 MHz -10 MHz: better than 60mVPP
    • 10 MHz -60 MHz: better than 60mVPP
    • 60 MHz -75 MHz: Not tested

High channel: (divided by 64)[edit]

  • Measuring range: 20 MHz -2.4 GHz
  • Accuracy: 6400Hz (0.01 seconds gate)
    • 640Hz (0.1 1s gate time)
    • 64Hz (1.0 1s gate time)
  • High channel sensitivity:
    • 20 MHz -30 MHz: better than 100mVPP
    • 30 MHz -60 MHz: better than 50mVPP
    • 0 MHz -2.4GHz: not tested

Auto Channel[edit]

Automatically selected according to the input signal frequency high or low channel channel, identifying the frequency of 60 MHz. Such as when the input signal amplitude is greater than 60 MHz shortage can not automatically select high channel, the channel should manually select high frequency measurement.

IF setting[edit]

Independent double-IF design, adjust the minimum frequency step of 100 Hz, frequency range 0 -99.9999 MHz, can be set to increase or decrease the IF frequency mode.

Frequency reference[edit]

Using 5032 package 13.000MHz Warming voltage controlled crystal oscillator (VC-TCXO), frequency stability of 2.5 ppm.

Power[edit]

  • Operating Voltage: DC 9V -15V (with reverse polarity protection)
  • Operation Current: Maximum 160 mA (test conditions: DC12V power supply, red LED, 8 LED brightness)
  • Eight LED display, the highest display eight digits.
  • Eight LED brightness is adjustable, factory set to maximum brightness.
  • Dimensions: 125.5 mm * 25.5 mm* 21.5 mm (L * H * W)

Onboard Interface[edit]

  • DC IN (Power Interface): HX2.54-2P socket
  • RF IN (signal input): HX2.54-2P socket
  • ICSP (programming interface): 2.54-6P Pin