Radio Systems DA 2x4a, Manual

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R a d i o S y s t e m s , I n c . D A - 2 / 4 x 4 a M a n u a l
3 / 0 4 P a g e 1 3
When testing active balanced equipment with single ended test equipment, do not
connect the - to test equipment ground. Most modern test equipment provides
balanced inputs. In many dual-trace oscilloscopes, balanced signals may be displayed by
running the two inputs in the “add” mode with one input switched to invert. To perform
a test with single-ended equipment, + and - outputs must be tested independently and
their results added. Testing only a single output results in a 6 db loss in output level.
The active balanced equipment interconnection format makes possible state of the art
fidelity. Careful attention to detail and conservative practice will be rewarded with
outstanding flat frequency response, low distortion, and wide dynamic range.