Sony CA-TX70, Руководство по эксплуатации

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18 Important Notes on Operation
When switching the return video signal,
the previously selected return signal
may be displayed for a moment, or the
picture may be distorted when the
display switches. This is not a
malfunction.
About Digital Triax
Transmission
Digital triax transmission between
cameras and CCU is protected by
powerful error detection and correction.
However, error may occur from
extraneous noise during long distance
transmission. In this case, image may
be interpolated using the previous
displayed image.
The following transmission delays may
occur during digital triax transmission.
• Between the camera and CCU, a
transmission delay of about 9 msec to
12 msec.
• When the main program’s image is
sent from the CCU to cameras as
return signal, a 1-frame delay occurs
in the viewfinder.
• For the prompter image, a 5-frames
delay can occur in the normal mode.
(In the CCU, you can select the
normal mode or low latency mode
with low resolution images.)
• The MIC 1 and MIC 2 sound signals
from the CCU are synchronized with
the video signal delay.
• It takes time to stabilize video signal
transmission between the camera
and CCU after the system is turned
on. This is not a malfunction.
About Triax Transmission
Distance
The longest and shortest transmission
distance for triax connection is shown in
the following table. However,
transmission distance can vary
depending on conditions such as cable
degradation, etc.
Possible transmission range when
using a triax cable with an attenuation
characteristic of 3.8 dB to 45.6 dB at
100 MHz (including loss of connector
part)
Cable type
(example) Longest
distance Shortest
distance
Fujikura
φ
8.5 mm
600 m
(1,970 ft) 50 m
(160 ft)
Fujikura
φ
14.5 mm
1,200 m
(3,940 ft) 100 m
(330 ft)
Belden
φ
13.2 mm 9232
850 m
(2,790 ft) 75 m
(250 ft)