Mar 2017
Page 25
DATA ACQUISITION FLIGHT RECORDER Type D51615-202-XXX or D51615-
202-XXX-090 with CCU Type D51616-XXXX and CAM Type D51623-XXXX
Installation and Operating Manual with Illustrated Parts
List
Commercial in Confidence
PIM434-I
© Penny & Giles Aerospace Ltd. No part of this work may be reproduced or distributed by any means
without prior permission in writing from the copyright owner.
Input Reference Signal
This is defined for this equipment as a 1kHz sine wave at the
Input Reference Level.
Audio Frequency Response
The difference between signal recovered and the audio source
is
≤
6dB for the audio channel frequency ranges below:
(i)
Audio Channel 1:
150Hz to 3.5kHz
(ii) Audio Channel 2:
150Hz to 3.5kHz
(iii) Audio
Channel
3:
150Hz to 3.5kHz
(iv) Audio Channel 4:
150Hz to 6.0kHz
Noise Level - Signal to No Signal (‘A’ weighted)
With no signal applied to any input channel, the reproduced
signal is at least 48dB below the Reference Level when
measured in accordance with the method described in
EUROCAE ED112, Part I-3.2.5.
This performance is also achieved for out-of-band signals
applied to the inputs in accordance with the method described
in EUROCAE ED112, Part I-3.2.5.
Continuity of Recording
Loss of recorded signal does not exceed any contiguous period
of 100 milliseconds per channel and the cumulative loss does
not exceed 250 milliseconds per channel per half hour.
Noise Level - Signal-to-Noise and Distortion
The reproduced Signal-to-Noise Ratio, including Total Harmonic
Distortion (THD), is at least the value given below when
measured by the method described in EUROCAE ED112, Part I-
3.2.6.:
(i)
Audio Channel 1:
24dB
(ii)
Audio Channel 2:
24dB
(iii)
Audio Channel 3:
24dB
(iv)
Audio Channel 4:
24dB
