Luda Elektronik cowCam, User Manual

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Troubleshooting the transmitting A300-antenna (10dBi)
So far we know that the LCD-monitor and the camera are functioning, therefore we can connect
and inspect the transmitting A300-antenna (10dBi). Position yourself 25 meters in front of the
A300-antenna holding the LCD-monitor.
No picture (black & white interference)
Possible error
• Wrong channel is selected on the LCD-
monitor.
• At least one of the two joints on the 25 m
antenna cable is not correctly connected.
• The cable might be pinched.
Unstable picture from the camera
Possible error
• The distance is too great and/or there are
obstacles between the transmitting A300-
antenna (10dBi) and the LCD-monitor.
• The camera frequency is being interfered by
other equipment.
• The antenna is positioned vertically.
• Very high contrast images shown on the
LCD-monitor.
Action
• Choose the same channel as the transmitting
channel of the camera (1-4).
• Inspect the joint on the back of the camera
and the joint of the A300-antenna, screw and
tighten using moderate force.
• Inspect the cable. If it has been bent more
than 90°, the wire inside the cable might have
been broken. Order a new cable from LUDA
Elektronik AB.
Action
• Move closer to the A300-antenna (approx.
5 m) and the picture should be clear, sharp
and without interferences. Then move away
from the A300-antenna (10dBi) to learn
what obstacle or distance that causes the
problem. If the obstacle can not be moved,
place the antenna higher in the air using a
mast or a pipe.
• Change the camera frequency (see 14).
• Position the antenna with the elements
horizontally.
• Make sure there are no objects above or
below to the A300-antenna, (especially
metal objects such as roof gutters or pipes
within 1 meter). Move the object or the
antenna to avoid the interference.
ok
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ok
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