Grass Valley HD Wireless - Manual (Page 45)

HD Wireless User’s Guide (v6.2) 45
Chapter 4 - Setting up
4.3 Antenna Management Unit (AMU)
4.3.1 AMU indicators
AMU IDENTIFIER
The display shows the cell number of the AMU (to identify AMUs when there are two
AMUs in a system). This number also appears in the viewfinder at the bottom right.
Lock LEDs
These three green indicators, whose numbers correspond to the three transmission
antennas, light to indicate that there is a good synchronization between camera and the
specific AMU antenna. At least one of these indicators must be lit to have a connection. If
all three are lit, the RF link is at its strongest.
If all three indicators are not lit then none of the three antennas received a signal that
could allow synchronization. Possible causes are:
– camera signal is absent, or
– an incorrect frequency is being used, or
– a transmission profile mismatch occurs (see below).
Error LEDs
These three red indicators light to indicate different problems in the connection between
the camera and a specific AMU antenna.
Check video link: even if one antenna picks up a signal, the digital demodulation process
could not correct all transmissions errors. Video loss will occur. Possible causes are:
– camera signal is too weak, or
– signal is polluted by strong interference
Profile mismatch: this occurs when the transmission profile of the camera and the WCU
do not match.
all unlocked: none of the signals picked up by the 3 antennas can be used for
synchronization. Possible causes are:
– camera signal is absent, or
– a profile mismatch occurs.
AMU IDENTIFIER
lock error
ANT 1 All unlocked
Check video link
Profile mismatch
2
3
POWER
2 4 3 1