Radial Engineering LX-3, Руководство пользователя

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Radial Engineering Ltd. LX-3™ Line Splitter User Guide
5
USIng ThE gRoUnd LIFT
When connecting two or more powered devices, you may encounter hum and buzz caused by ground loops. The isolated
outputs on the LX-3 have a Jensen transformer in their signal path, which blocks DC voltage and breaks the ground loop. How-
ever, the direct output is connected straight through to the input of the LX-3, and you may need to engage the ground lift on this
output to disconnect the audio ground and help remove buzz and hum on this output. Ground lift switches are also present on
the isolated outputs to provide further abatement of ground loop noise.
the image above shows an audio source and a destination with a common electrical ground. as the audio also has a ground, these
combine to create a ground loop. the transformer and ground lift work together to eliminate the ground loop and potential noise.
60Hz
Hum
GROUND LOOP HUM
TRANSFORMER
BREAKS THE LOOP
ELECTRICAL GROUND PATH
EMI & RADIO NOISE
SOURCE
RECEIVE