User guide

AMP2A-10S User Guide

Level Meter Settings and Specifications

Input Level Gain Calibration Settings

DIP switch sections 1 and 2 set the level meter Input Level Gain

Calibration, which determines the level of the input signal that will

result in a 0 reading on the meter bar graph. The factory setting is +4

dBu, but can be set for -6 dBu, 0 dBu, or +8 dBu by the user. See the

diagram below for settings.

Bar Graph Display Modes

DIP switch sections 3 and 4 determine how levels are displayed (PPM

or VU mode characteristics). The factory setting is VU. See the diagram

in Figure 1–4 below for settings.

Figure 1–4 DIP Switch Settings

Note:

Each bar graph segment will turn on at 0.5 dB before that

segment’s silk-screened scale indication.

Example: When the gain calibration is set for +4 dBu, the zero indication on the

level meter will light up at 3.5 dBu. Calibration is implemented in this

way to effect a rounding function for more accurate indication of signal

levels which occur between the thresholds of any two bar graph

segments.