Nady Systems OCTAVO U-81 - Manual (Page 6)

11 6
• For each channel you wish to use, insert an audio cord with a XLR female plug into its
Balanced XLR out (9) jack on the back of the receiver. Plug the other end of this cord
into your amplifier, effects or mixing board. The front panel individual receiver Volume
controls (6) can be adjusted for a suitable output level.
• The U-81 OCTAVO also has a MIX unbalanced output (10), which is a SUM line level
output of all the channels. To use it, just plug an audio cable with a 1⁄4” mono plug into
the MIX out (10) and plug the other end to your amplifier or mixing board. Turn the
volume controls on each of the channels being used clockwise to near full gain. Adjust
each volume up or down so that no audio distortion is present when the ampflier or
mixer is set at their usual levels. (Note: Turn the volume controls of any unused chan-
nel all the way off, full counter-clockwise, so that only the channels being used are in
the MIX output.)
• Your U-81 OCTAVO is now operational and ready to use. Now that you have completed
the above step, proceed to instructions for the UH-81 or UB-81 transmitters included
with your system.
Note:
• To prevent possible undesired noise during use, keep the volume controls of unused
channels (corresponding transmitter off) turned off in the amplifier or the mixer. The
audio should only be “live” if the transmitter is on.
• As when making any connection, make sure the amplifier or mixing board volume is
at the minimum level before plugging in the receiver to avoid possible sound system
damage.
• Only one transmitter can be used with one receiver. It is not possible to use two
transmitters on the same frequency and mix the output of these transmitters into one
wireless receiver.
1
2
3
4
5 6
7
8
9 10
U-81 OCTAVO RECEIVER OPERATING INSTRUCTIONS CAUTIONS AND TROUBLESHOOTING
16. No Audio
If you are not getting audio through the U-81 OCTAVO system, slide the transmitter
POWER or MUTE (STDBY) switch to ON, carefully check all connection and system
setup. Check or replace transmitter battery. Check that the receiver is powered. The
receiver and transmitter must be set to operate on the same RF channel.
17. Audio Distorted or Unwanted Sound
Remove or turn off nearby RF sources (such as other wireless system, CB radio, CD
player, computer, digital effect, ect...) Check or replace transmitter battery.
18. Feedback
Observe care in selecting P.A. volume, transmitter location and speaker placement so
that the acoustic feedback (howling and screeching) will be avoided. Please also note
the pickup pattern characteristics of the microphone selected. Omnidirectional mics
pick up sound equally from all direction, and are prone to feedback if not used carefully.
Unidirectional mics are more resistant to feedback. However, pick up sound source
best that are directly in front of the mic. In addition, mics that are farther from the sound
source, such as lavalier, required more acoustic gain and thus are also more prone to
feed back than close-source mics such as handheld or headworn models that are used
close to the mouth.
19. RF Interference
If you encounter receiving interference (from other than an operating TV station), often
it can be checked by turning off each transmitter at a time to find the source of causing
interferences. Please note that wireless frequencies are shared with other radio servic-
es. According to FCC regulations, wireless microphone operations are unprotected from
interference from other licensed operations in the band. If any interference is received by
any Government or non-government operation, the wireless microphone must be cease
operation or change frequencies. The above statement is valid only for use in the U.S.A.
20. Signal Loss
Reposition the receiver and perform walk-thought test. If audio dropouts persist, locate
“dead” spots and avoid them during performance. Check receiver MUTE level setting.
Check or replace transmitter battery.