User's Manual

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On the receiver, the remaining battery life will be shown on the middle 5-position LED ladder, which
indicates remaining battery life in one-hour steps. When remaining battery life is more than five hours,
all five LEDs are lit, with between four and five hours left, four LEDs are lit, and so on. When less than
one hour of battery life remains, the bottom LED will turn from green to red – and will begin to flash in
the last 40 minutes of life.
NiMH (nickel metal hydride) batteries in the 2400 – 2800 mAh range are recommended as rechargeable
batteries to use with the THH12 and TBP12 transmitters. Make sure that the batteries fit properly in
the battery compartments to prevent damage, since these batteries can vary in diameter and length.
They need to be charged in the correct external battery charger; the transmitters are not designed for
batteries to be charged internally. Because the transmitter’s battery meter was calibrated for alkaline
batteries, they will not be as accurate in calculating the remaining battery life when using rechargeable
batteries
Note, Carbon-zinc batteries are not recommended.
Range and inteRfeRence testing
The XD-V55 receiver’s RF LED ladder provides a useful tool for selecting the clearest channels, avoiding
interference, and preventing the wireless microphone systems from interfering with other wireless
devices. Using this function before operating the systems in new locations will promote trouble-free
and compatible performance.Scanning the Channels for Interference
RFBATTERYAUDIO
MUTE
TRANSMITTER
STATUS
Detecting Interference with the RF Meter
The XD-V55 receiver has an LED ladder (stacked LED meter) labeled RF, which detects signals on the
channel frequencies to which it is currently set (for example, when set to Line 6 channel 7, it detects
frequencies with either a 2.433 GHz or 2.467 GHz center frequency). These LED’s are green when
receiving signal from a Line 6 transmitter, and red when the transmitter is off and interfering signals on
that frequency are present. If the receiver is on and the associated transmitter is off, and one or more
of the LEDs on the RF meter are lit red, it is detecting a potentially interfering signal. The more LEDs
that are lit, the stronger the signal – and the more it will interfere with the range and performance of a
transmitter on that channel.
Note: When the associated handheld or Bodypack is on, these same bars show the transmitter’s signal
strength at the receiver’s antennas. During normal operation, you should see four green bars – and as
you begin to exceed the range you will see fewer bars. At three bars the signal will still be good, and at
two it should still be acceptable and provide reliable audio.
Walk-Testing the Performance Area
When first setting up a wireless system in a new location, it is good practice to position the receiver and
its antennas where they will remain during the event, and then walk the entire performing area with
the audio system on and the transmitter active. Talk and listen for signal dropouts or other problems,
and note where they are with respect to your antenna placement.
If you for some reason cannot turn on the audio system, with one person to walk with the transmitter
and another to monitor the receiver, you can use the RF LED meter to find locations with low signal