... detection, digitally controlled attenuator, compact design, and single 5V power supply, with I2C and SPI control interface, also LCD display ... corresponding module socket, the operator can easy set the output frequency and power level locally, and the LCD screen ... the shielding performance is superior. JH-UPC860H is high output (60dBmV) with 30dB adjustable range, power detection, LCD screen interface, ...