Reference description: PLJ-6LED-A is a cost-effective six-digit LED frequency display module specially designed for forum HAM friends. It is mainly used to display the frequency value of transceivers and other equipment, and can also be used for regular frequency measurement. This module has the characteristics of small and exquisite, reliable performance, good visual effect and low cost. Technical Parameters: 1. Gate time 0.1 second 2. Measurement channel Input impedance: high impedance Measuring range: 0.1 MHz~65 MHz Measurement accuracy: 10 Hz Sensitivity: better than 60mVpp 3. IF setting Independent dual intermediate frequency design, the minimum step of intermediate frequency adjustment is 100Hz, the intermediate frequency range is 0~99.9999MHz, and the mode of adding intermediate frequency or subtracting intermediate frequency can be set. 4. Frequency reference Using 5032 package 13.000MHz temperature compensated voltage controlled crystal oscillator (VC-TCXO), the frequency stability is 2.5ppm. 5. Working voltage DC input: DC8V~15V (with power reverse polarity protection) or DC5V (hardware setting required). 5. Working current Max 90mA 7. Display digits Six-digit common anode LED display, the highest display six digits. 8. Display brightne Eight-level LED brightne is adjustable, and the factory setting is the highest brightne. 9. Size: L W H: 91mm28mm20mm 10. Onboard interface RF IN (signal input): HX2.54-2P socket ICSP (programming interface): 2.54-6P pin DC IN (power interface): HX2.54-2P socket Package Included: 1 x frequency counter 2 x connecting wires