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Listening For A Lifetime

Selecting fine audio equipment such as the unit you ve just purchased is only the start of 

your musical enjoyment. Now it s time to consider how you can maximize the fun and 

excitement your equipment offers. VocoPro and the Electronic Industries Association s 

Consumer Electronics Group want you to get the most out of your equipment by playing it 

at a safe level. One that lets the sound come through loud and clear without annoying 

blaring or distortion and, most importantly, without affecting your sensitive hearing.
Sound can be deceiving. Over time your hearing “comfort level” adapts to a higher volume 

of sound. So what sounds “normal” can actually be loud and harmful to your hearing. Guard 

against this by setting your equipment at a safe level BEFORE your hearing adapts.
To establish a safe level:

• Start your volume control at a low setting.

• Slowly increase the sound until you can hear it comfortably and clearly, and without 

  distortion.
Once you have established a comfortable sound level:

• Set the dial and leave it there.

• Pay attention to the different levels in various recordings.
Taking a minute to do this now will help to prevent hearing damage or loss in the future. 

After all, we want you listening for a lifetime.
Used wisely, your new sound equipment will provide a lifetime of fun and enjoyment. Since 

hearing damage from loud noise is often undetectable until it is too late, this manufacturer 

and the Electronic Industries Association s Consumer Electronics Group recommend you 

avoid prolonged exposure to excessive noise. This list of sound levels is included for your 

protection.

Some common decibel ranges:

Level 

30 

40 

50 

60 

70 

80

Example
Quiet library, Soft whispers      

Living room, Refrigerator, Bedroom away from traffic

Light traffic, Normal Conversation

Air Conditioner at 20 ft., Sewing machine

Vacuum cleaner, Hair dryer, Noisy Restaurant

Average city traffic, Garbage disposals, Alarm clock at 2 ft.

The following noises can be dangerous under constant exposure:

Level 

90 

100 

120 

140 

180

Example
Subway, Motorcycle, Truck traffic, Lawn Mower 

Garbage truck, Chainsaw, Pneumatics drill

Rock band concert in front of speakers

Gunshot blast, Jet plane

Rocket launching pad

-Information courtesy of the Deafness Research Foundation

Summary of Contents for UHF-388

Page 1: ...POWER ANT A CHARGING CHANNEL A ANT B CHARGING CHANNEL B RECHARGEABLE UHF WIRELESS MIC SYSTEM UHF 388 POWER ON OFF UHF 3700 POWER ON OFF UHF 3700 OWNER S MANUAL ...

Page 2: ...ou below VocoPro 1728 Curtiss Court La Verne CA 91750 Toll Free 800 678 5348 TEL 909 593 8893 FAX 909 593 8890 Customer Service General Information info vocopro com Tech Support techsupport vocopro com Remember Our Website Be sure to visit the VocoPro website www vocopro com for the latest information on new products packages and promos And while you re there don t forget to check out our Club Voc...

Page 3: ...structions FCC Information Listening for a Lifetime Specifications and Features Getting started Getting Connected Controls and Functions Front Panel Rear Panel Microphone Microphone Basics Operations Troubleshooting 2 3 4 5 6 8 9 9 10 11 12 13 ...

Page 4: ... other appliances including amplifiers that produce heat 10 Power Sources The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance 11 Grounding or Polarization Precautions should be taken so that the grounding or polarization means of an appliance is not defeated 12 Power Cord Protection Power supply cords should be ...

Page 5: ...e CA 91750 1 To ensure the finest performance please read this manual carefully Keep it in a safe place for future reference 2 Install your unit in a cool dry clean place away from windows heat sources and too much vibration dust moisture or cold Avoid sources of hum transformers v motors To prevent fire or electrical shock do not expose to rain and water 3 Do not operate the unit upside down 4 Ne...

Page 6: ...dial and leave it there Pay attention to the different levels in various recordings Taking a minute to do this now will help to prevent hearing damage or loss in the future After all we want you listening for a lifetime Used wisely your new sound equipment will provide a lifetime of fun and enjoyment Since hearing damage from loud noise is often undetectable until it is too late this manufacturer ...

Page 7: ...Outputs Individual Balanced XLR outputs and single mixed output Specifications and Features Reciever Frequency Stability 0 005 S N Ratio 100dB RF Sensitivity 107dBM 12dB S N AD Image Rejection 60dB T H D 1 KHz 60dB Display VFD Controls Power ON OFF Volume controls Audio Output Level 12dB AF Output Impedence 2 2Ω Unbalanced Operation Voltage 14 18V DC 800mA Output Connector 2 balanced XLR 1 unbalanc...

Page 8: ... the micro phones NOTE Do not place the UHF 388 in a space where there is something above the antennas such as a rackspace or an entertainment center ANT B CHANNEL B Fig B Close up of Antenna BNC Fig C Close up of BNC Input on Face of UHF 388 Line up the slots on the antenna s BNC connector Fig B with the pegs on the receiver s BNC inputs Fig C and push in Twist the antennas BNC connector clockwis...

Page 9: ...reless microphone installation is a unique situation and can present a variety of problems Never attempt a live performance without first conducting a walkthrough test of the system in the performing area If major changes additional wireless systems or intercoms relocation of scenery etc have been made since the last walk through test check the wireless system again as close to performance time as...

Page 10: ...e are a number of ways to integrate the UHF 388 into your audio system Using a cable connect the MIXED output to a mic input on your all in one system Fig J Connect each mic channel to separate channels on the mixer using the BALANCED XLR outputs Fig G or output both channels to a single input using the MIXED output Fig H Connecting to a Mixer Connecting to an All In One System Fig G Fig H Fig J ...

Page 11: ...ach mic channel Turn clockwise to raise vol ume and counter clockwise to lower the volume DISPLAY screen Displays the signal level of each mic channel BALANCED A and B outputs Outputs each mic channel independently using a balanced XLR microphone cable MIXED output Outputs both mic channels together using a microphone cable AC POWER connection Main power jack for connection to an AC electrical out...

Page 12: ...ower is on The light will be off when the mic is turned off or when the battery is dead POWER switch Used to turn the microphone power ON and OFF The mic power is ON when the switch is in the ON position and the power is OFF when the switch is in the OFF position BATTERY COMPARTMENT Removable lid hides and protects the microphone batteries MICROPHONE 1 2 3 4 Controls and Functions Cont ...

Page 13: ...o the microphone Each time this distance is halved the sound system output will increase by 6dB Reduce the number of open microphones Move the loudspeaker farther away from the microphone Each time this distance is doubled the sound system output can be increased by 6dB Move the loudspeaker closer to the listener Use an equalizer feedback reducer to cut the frequency bands in which the feedback oc...

Page 14: ...e and counter clockwise to lower the volume POWER ANT A CHARGING CHANNEL A ANT B CHARGING CHANNEL B RECHARGEABLE UHF WIRELESS MIC SYSTEM UHF 388 Place the mics in the charger compartments on top of the UHF 388 s receiver Make sure to position the mics with the power switch facing out towards the front of the receiver The charging LED on the receiver will light up when the mic is inserted correctly...

Page 15: ...ver s VOLUME level controls Check for proper connection between receiver and external amplifier mixer Talk into the microphone and observe the receiver s signal LED s on the display screen If they glow the problem is elsewhere in the sound system Check microphone s batteries and recharge or replace if the charge is low Remove local sources of UHF interference such as lighting equipment Signal may ...

Page 16: ...UHF 388 MANUAL 2006 VOCOPRO WWW VOCOPRO COM ...

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