© 2005 Wohler Technologies Inc. ALL rights reserved
17
ATSC/DVB-3
User Manual P/N
821507
Rev-
D
Section 3:
Technical Information
Level Meter Description and Specifications
Dynamic range, dB:
Midscale resolution:
Segment Quantity:
Segment size:
Segment pitch:
65 dB
1 dB
53
0.158" (4 mm) x 0.04" (1 mm)
0.039" (.99 mm)
Description
The 53-segment type of tri-color LED bargraph display has a total length of 2.24" (56.8 mm) and uses relatively small segments. This high
resolution segment size is easy to accurately monitor, visually, for distances up to six feet (1.8 meters). Segment size is 0.158" (4 mm) x 0.04"
(1 mm). Segment pitch is 0.039" (0.99 mm).
Each LED bargraph display section visually indicates the dynamic changes within the audio signal source(s) being monitored. All bargraph
LED segments are of the tri-color type (green, amber, red). Ballistics for these meters are factory set to display a single floating PPM 'dot'
(continuous decay of 20 dB in 1.5 seconds) above a VU bar; each segment's color being fixed according to its position on the scale. Level
gain is factory set at +4 dBu. Dynamic range for these 53-segment meters is 65 dB.
Scales
Please refer to the figure below for an illustration showing the standard scale for the 53-segment bargraph display used in the
ATSC/DVB-3
audio monitor. Custom variations of this scale are also available on special order.
