Bosch Security Systems B112 Beltpack Wireless Microphone Transmitter User Manual NBPUOWNERS10
Bosch Security Systems, Inc. Beltpack Wireless Microphone Transmitter NBPUOWNERS10
Users Manual
TELEX
Owners Manual/Operating Instructions
Telex Evi Model NBPU UHF Transmitter
General……
The Telex Evi NBPU is a 10 Channel Belt Pack Transmitter operating
within the UHF frequency range. ( 518.0 to 806.0 MHz )
The transmitter is especially suited for use wherever a small, reliable Belt
Pack wireless transmitter is required. Guitar/Instrument versions are
available.
Please note that each transmitter requires a matching receiver with the same
operating frequency group. Standard “off the shelf” frequencies are available.
Please see the Telex Price List for information.
The Telex Evi NBPU Series feature 10 channel versatility as well as economy.
SETUP:
Before setting up the transmitter, it is necessary to set up the receiver or at least
check the receiver operation if the receiver has been installed previously.
Place the receiver in an area with the antennas in clear view of the transmitter
operating area. Connect the receiver audio output to the audio input of the mixer,
amplifier or other device. Turn the input to these items down at this point.
Apply power to the receiver. Set the receiver channel to match the transmitter
setting. Note that there should be no "Carrier" or TX light on at the receiver at this
time. If there is a light on, this indicates RF interference to the channel and the
interference must be eliminated or you should consider changing the channel
frequency.
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If the interference is not severe, suitable operation can sometimes be made
possible by adjusting the squelch control until the light goes off. (Transmitter off)
If the light cannot be made to go off by adjusting the squelch control, then the
channel should be abandoned.
Set the receiver audio output control to its midpoint (50 % of rotation). Set the
audio device volume control to its normal setting.
Open the transmitter battery door and install a fresh 9 volt alkaline battery. Place
the transmitter in the position desired and turn on the power switch. The Green
battery light should flash once and go off. The carrier light at the receiver should
now be on. You are now ready to use the microphone. Place the transmitter Audio
Switch in the ON position (up). Talk in your normal tone and volume or operate
the instrument, as required. If the Red light on the transmitter comes on or
continues to flash as you speak or play, turn down the transmitter gain control
until the Red light is off or only flash’s on occasion. If the audio to the mixer or
amplifier sounds distorted or clipped, try reducing the input volume of the mixer
or amplifier, or turn the volume down on the receiver.
FCC REGULATIONS
The Telex EVi Model NBPU is Type Accepted under United States Federal
Communications Part 74. Licensing of Telex equipment is the users
responsibility and licensibility depends upon the users classification and
the frequency selected. Telex strongly urges the user to contact the appropriate
telecommunications authority before ordering frequencies other than factory
preset frequencies.
CAUTION:
Changes or modifications made by the user could void the users authority to
use the equipment.
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INDUSTRY CANADA INFORMATION
Operation is subject to the following two conditions: (1) This device may not
cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.