Section 6 - Guidelines For Best Performance - Electro-Voice REV Operating Instructions Manual

Section 6 - Guidelines for Best Performance

Compatibility
The transmitter and receiver must be of the same frequency
band and set to the same group and channel in order to work
together. The REV is available in four US frequency bands, C1,
C2, C3, C5. The band information is available in the
Group/Channel edit screen on the receiver, the bottom label on
the handheld transmitter, and on the back panel label on the
bodypack.
Using Multiple Wireless Systems
If two or more REV systems and/or other UHF/VHF wireless
systems are being used in the same location, proper frequency
coordination is necessary to avoid interference. All channels in
the REV factory set groups are designed to work together, so if
channels from just one group are used, no further coordination
is required.
Contact your dealer or Telex for assistance if you are planning
more than 12 systems or using the REV with other wireless
equipment.
ALWAYS REMEMBER: SAME GROUP, DIFFERENT CHAN-
NEL.
IMPORTANT NOTE: Always use the smallest preset group
that meets your needs. For instance, if you want to set up 6
units, use one of the groups of 12 frequencies. The smaller
the preset group, the more compatible the frequencies are.
IMPORTANT NOTE: Lo transmit power must be used for
factory preset groups of 16 units working simultaneously.
Multiple Systems and Advanced ClearScan
Because all of the channels in the factory set groups are com-
patible, Advanced ClearScan can be used to set up multiple sys-
tems quickly and with confidence. When setting up more than
one system, set up the first system using the ClearScan All func-
tion. Once the working Group has been established, leave the
first transmitter on, set the next receiver Group to the working
Group and run ClearScan Group.
This will provide the next clearest channel in that group. Set the
transmitter to match, leave it on and repeat until all the systems
are set up. If you run out of clear Channels in one group but
need to set up more systems, contact your dealer or Telex for
assistance in choosing additional frequencies.
Potential Sources of Interference
There are many potential sources of interference for your wire-
less system. Any electronic product that contains digital circuitry
including digital signal processors (reverb/multi-effects units),
electronic keyboards, digital lighting controllers, CD and DVD
players, and computers, all emit RF energy that can adversely
affect the performance of your wireless system. It is always best
to place the receiver as far away as possible from these devices
to minimize potential problems.
Analog and Digital Television stations can also interfere with
your wireless system. The REV is designed to operate over
24MHz of RF bandwidth, which covers four TV channels. The
factory presets on the REV are optimized for conditions where
one, two, or possibly three of the four stations are covered in
your area. If three of the four stations are used in your area, it
will severely limit the number of systems that will operate togeth-
er and you should be using a different band.
Battery Recommendations
Fresh 9-volt or AA Lithium-Iron batteries from a quality manufac-
turer will yield the best performance from your transmitters.
Rechargeable 8.4-volt Ni-Cad batteries can be used but will
result in much shorter operational time.
When the REV-BP or REV-PH transmitters are turned on, the
red battery LED will flash once if the battery is good. If the light
does not light or stays lit continuously, the battery is weak or
dead. If the light comes on during use, the battery is weakening
and should be replaced as soon as possible. If sound quality
degrades during use, it may be the result of a weakening bat-
tery.
Caution: The battery level indicators, on the transmitters
and receiver displays, are based on the use of alkaline bat-
teries. Use of other battery types will result in false read-
ings on these indicators although the battery low LED on
the transmitters will operate normally.
Receiver and Antenna Placement
Do not place the receiver near a large metal object or surface.
Locate the receiver as close as possible to the area where the
transmitter will be used. Ideally, the position of the
receiver/antennas are within sight of the transmitter. When using
multiple systems, do not allow antennas to cross or touch each
other. For best results with multiple receivers, use an APD4+
antenna splitter (see Antenna Connections, page 6).
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