DCS 900E - How Far will It Go; Figure 22 - AES3 Format at 48 Ks;S over 16 Metres; Figure 23 - AES3 Format at 48 Ks;S over 94 Metres

dCS 900E / 902E User Manual Manual for Software Versions 1.3x to 1.5x
dCS Ltd 12
th
June 2000
Manual part no: DOC0029021E1 Page 43 Document No: OS-MA-D0002-902.1E1
Contact dCS on + 44 1799 531 999 email to: more@dcsltd.co.uk
(inside the UK replace + 44 with 0) web site: www.dcsltd.co.uk
How Far will it Go? -
The AES/EBU format was designed to go reasonable distances, at 44.1 kS/s
and 48 kS/s. Figure 22 and Figure 23 below show it over 16 m and 94 m using
average cables. The waveform at 94 m can still be decoded, although it is quite
degraded. Cable delay is about 5.6 nsecs/metre.
At 96 kS/s (twice the data rate the format was designed for) the allowed cable
length is less. Figure 24 and Figure 25 below show this over 16 m and 94 m. At
16 m the waveforms are still very good, but at 94 m they are really quite
unreliable.
We recommend restricting 96 kS/s cable runs to 20 m or less, and using good
cable near this length.
Figure 22 – AES3 format at 48 kS/s over 16 metres
Figure 23 – AES3 format at 48 kS/s over 94 metres
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