Nady Systems VR-3U Owner's Manual - Miscellaneous Tips
11
Miscellaneous Tips
For optimal operation with external
•
antennas, low loss RF shielded cable
should be used and the length of the
cable should not exceed 3m.
The receiver antennas should be kept
•
away from any metal surfaces whenever
possible as they can reflect away or shield
the incoming RF signal.
If the receiver’s volume control is set too
•
high, it may overdrive the input of the
attached audio mixer causing distortion.
Conversely, if the output is set too
low, the overall signal-to-noise ratio of
the system may be reduced, causing
noticeable hiss. If such noise occurs,
adjust the output level of the receiver so
that highest sound pressure level going
into the microphone transmitter causes
no input overload in the mixer, and yet
permits the mixer level control to operate
in the normal range (not too high and
not too low). This provides the optimum
signal-to-noise for the entire system.
Before inserting the batteries, please
•
make sure that they are inserted with
the correct polarity.
Before operation please confirm that the
•
receiver and associated transmitter are
tuned to the same frequency group and
channel number.
After making a receiver channel change,
•
please make sure that the corresponding
change is also made on the matching
transmitter.
Use only brand new alkaline batteries.
•
Do not use “general purpose” carbon
batteries. When batteries are weak,
replace all the batteries at the same time.
Do not mix new and old batteries.
Position the receiver so that it has the
•
least possible obstructions between it
and the transmitter. Line of sight is best!
During operation, the transmitter and the
•
receiver should be as close as possible for
optimum results but never closer than 3 ft.
(1m) as that may overload the receiver’s
input circuitry and cause noises.
For the best operation, the receiver
•
should be placed at least 1m above the
ground and 1m away from a wall or metal
surfaces. The transmitter should be also at
least 1m from the receiver. Keep antennas
away from noise sources such as motors,
automobiles, neon light, signal processor,
computer, as well as large metal objects.
A receiver cannot receive signal from two
•
or more transmitters simultaneously.
Turn the transmitter off when it is not
•
in use. For longest life, remove the
batteries if it is not to be used for a long
period as the transmitters draw a tiny
residual current even when off to maintain
the programmed settings. Also, since
batteries installed for a long time can
sometimes corrode and/or leak, causing
damage, it is generally recommended
that batteries be removed anytime the
transmitters are not being used.
Service Information
In the u.S. If you are experiencing operational problems with your system, please refer to the Support page at
www.nady.com for assistance. Should your wireless system require service, please contact the Nady Service
Department at (510) 652-2411 for a Return Authorization (R/A) Number and service quote (if out of warranty).
Make sure the R/A Number is clearly marked on the outside of the package that you are returning.
If your unit is out of warranty, please enclose a cashier’s check or money order (or pay by credit card) per
instructions by the Nady Service Department. Ship your unit prepaid to: Nady Systems, Service Dept, 6701
Shellmound Street, Emeryville, CA 94608. Include a brief description of the problem you are experiencing.
For service of a unit under warranty, please follow the instructions in the following section.
Outside the u.S For service or warranty matters please contact the Nady distributor in your country through
the dealer/store from which you purchased this product.
Do not attempt to service this unit yourself as it can be dangerous and will also void the warranty.