Leader Ldc-823a 10 Hz - 250 MHz Frequency Counter

Leader LDC-823A 250 MHz Digital Frequency Counter Technical Specifications

• • Operating Frequency Limit: Wide-band high-frequency detection and counting capability between 10 Hz and 250 MHz.

• • Input Sensitivity: 20 mVrms sensitivity threshold in the 10 Hz - 80 MHz frequency range; 30 mVrms sensitivity threshold in the 80 MHz - 250 MHz high-frequency range.

• • Input Impedance: Standard 1 MΩ (Ohm) / 40 pF high-impedance protected input structure to prevent signal loading.

• • Maximum Input Voltage: Maximum 200V (DC + AC peak) for safe working limits in the 10 Hz - 80 MHz range; safe signal level protection at high frequencies.

• • Gate Time Options: 0.1 second, 1 second, and 10 second gate time settings easily selectable via front panel buttons.

• • Measurement Modes: Functional control buttons allowing switching between frequency measurement (Freq) and period measurement (Period) functions.

• • Display and Indication Structure: 8-digit high-visibility green fluorescent/digital display panel for clear tracking of measured values, units (M, k, Hz), and operating conditions (Gate, Over).

• • Connection Type: 1 BNC-type secure input connector on the front panel for lossless transmission of high-frequency signals