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Summary of Contents for XIEGU GNR1
- Page 1 XIEGU Digital Audio Noise Filter GNR1 Opera�ng Instruc�on Version 1.0 Dec 2021...
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Page 2: Introduc�On
VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP I. Introduc�on GNR1 digital audio noise filter is an audio processing device integra�ng digital noise reduc�on and digital filtering. It can be widely used in the external audio processing sector of all types of wireless receiving equipment such as radio transceiver, receiver, radio, to effec�vely reduce the background noise, improve... - Page 3 VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP III. Opera�ng Instruc�on 3.1 Descrip�on of Panel Front panel Input overload indictor Power indicator NR adjustment L/H-CUT adjustment Input/ Output sound volume adjustment Power switch Headphone interface Rear panel Input impedance selec�on RCA output interface Input interface DC power input 3.5mm stereo output interface...
- Page 4 Do not use it under over-voltage! Do not directly power with 220VAC! 3.1.2 Selec�on of input impedance Reasonably select the high/low input impedance level for GNR1 according to the audio output impedance of the device you are using. You may turn down the output sound volume if you select it improperly.
- Page 5 VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP 3.1.5 NR noise reduc�on adjustment This knob controls the NR noise reduc�on switch, and the 200-level noise reduc�on degree. Turn le� to the end to turn off the NR. Turn to right to turn on NR noise reduc�on and increase the noise reduc�on degree by levels.
- Page 6 VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP Schema�c Diagram of Filter Composi�on: Actual filter bandwidth Low cut High cut boundary boundary Audio frequency 5615Hz Center frequency piont As shown in the figure on the right, the filter consists of L-CUT and H-CUT, and both work together to form an effec�ve filter bandwidth.