VocoPro UHF-3200 Dual Channel Wireless Microphone System Manual

VocoPro UHF-3200 Dual Channel Wireless Microphone System

About VocoPro
The professional audio business VocoPro was established in California in 1991. The VocoPro brand has been associated with high-end professional karaoke systems for more than three decades and continues to be the market leader. VocoPro offers the best customer service in the business because they know that keeping customers satisfied requires more than just a fantastic product.

VocoPro has more than 30 years of expertise and has established itself as a leader in the field. A twin tray multi-format hard disk player and an all-in-one entertainment P.A. system are just two of their numerous “world’s first” creations. VocoPro’s multi-channel wireless microphone systems are the best-selling products at most significant music merchants in addition to their many advances.

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 to listen 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 / Example

• 30 Quiet library, Soft whispers
• 40 Living room, Refrigerator, Bedroom away from traffic
• 50 Living room, Refrigerator, Bedroom away from traffic Light traffic, Normal Conversation
• 60 Air Conditioner at 20 ft., Sewing machine
• 70 Vacuum cleaner, Hair dryer, Noisy Restaurant
• 80 Average city traffic, Garbage disposals, Alarm clock at 2 ft.

The following noises can be dangerous under constant exposure:

Level / Example

• 90 Subway, Motorcycle, Truck traffic, Lawn Mower
• 100 Garbage trucks, Chainsaw, Pneumatics drill
• 120 Rock band concert in front of speakers
• 140 Gunshot blast, Jetplane
• 180 Rocket launching pad

SPECIFICATIONS

Transmitter (microphones)

• Carrier Frequency: UHF 730~820 MHz
• Freq. Stability 0.002%
• Power Output 30mv
• Current Loss 55mA
• Maximum Distance 197’ (Approx.)
• Battery 1.5V (AA) x2
• Dimensions 1.4” (W) x 9.5” (H)

Receiver

• Sensitivity 2uV @ sinad=12dB
• Spurious rejection 75dB
• Image rejection  85dB
• S/N ratio 105dB
• Max. output
  • Mix: 0~200mV,
  • Separate: 0~400mV
• Power DC12 – 15V
• Power consumption 3W
• Dimensions 8.5” (W) x 5.5” (D) x 1.7” (H)

FEATURES

• 2 wireless handheld mics included
• 2 mic outputs and 1 mixed output
• UHF Band (800 MHZ)
• Rugged mic grills protect the microphone cartridge and prevent the mic from rolling
• Individual Volume controls for precise vocal balancing
• Low battery indicator (LED) on mics
• Dual antennas provide clear RF reception

Getting started

Before starting any installation procedures, it is recommended that you completely unpack all of the package contents. The original packaging should be kept in the event that re-shipping is needed.

Upon unpacking the UHF-3200, you should have received the following items:

• UHF-3200 receiver (1)
• Handheld microphones (2)
• 1.5 V AA batteries (4)
• AC power adapter (1)
• 3 ft. male/male ¼” cable (1)
• Removable Antennas (2)

Setting Up the UHF-3200

Set up the UHF-3200’s receiver in a spot where there are no barriers above the antennas or between the receiver and the microphones.

NOTE: Do not place the UHF-3200 in a space where there is something above the antennas such as a rackspace or an entertainment center.

Getting connected

1. Connect the AC POWER ADAPTER to the UHF-3200 receiver’s POWER INPUT connector, then plug the ADAPTER into a compatible AC electrical outlet.
2. Attach the antennas by screwing them in until secure. Be sure the antennas are pointing as straight up as possible.
3. Connect the UHF-3200’s receiver to a sound system, mixer, or amplifier’s microphone input(s) with ¼” output jacks.

NOTE: There are two options when connecting the UHF-3200 to a mixer or amplifier.

Independent Mic Channels

Connect each mic channel independently to separate input channels on a mixer or amp. Do this by connecting a 1/4” cable from each mic channel (CH. A OUT and CH. B OUT) to individual inputs on your mixer or amp.

Mixed Mic Channels

Use the mixed output to connect both microphone channels to a single mixer or amp channel. Do this by connecting a 1/4” cable from the MIX OUT jack to an input jack on your mixer or amp.

Front and rear panel descriptions

1. POWER button – Turns the UHF-3200 On and Off.
2. SIGNAL INDICATOR LEDs – These will light up when signals are received from the microphone channels.
3. POWER (LED) – Indicates whether the UHF-3200 is ON or OFF. When it is lit, the power is ON.
4. VOLUME controls – Adjusts the individual VOLUME of the receiver’s 2 microphone channels.
5. ANTENNAS – Provide the RF signal.
6. AC POWER connection – Main power jack for connection to an AC electrical outlet or power strip/surge protector.
7. MIC CHANNEL OUTPUTS – These ¼” outputs are for connection to amplifiers, effects devices, or mixers. OUT A corresponds to CHANNEL 1 and OUT B corresponds to CHANNEL 2.
8. MIXED OUTPUT – Output mic channels A and B simultaneously from this output using a ¼” cable.

Microphone descriptions

1. GRILL – Protects the microphone cartridge and helps reduce “breathy” and wind noise pick-up.
2. 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.
3. BATTERY COMPARTMENT – The removable lid hides and protects the microphone battery.

MAINTENANCE PROCEDURES

Handheld Microphone Battery Installation

1. To remove the lid, press down on the tab and slide the lid down towards the bottom of the mic.
2. Insert 2 fresh 1.5-volt AA alkaline batteries. Make sure the batteries are inserted in the right direction according to polarity (+/-).
3. Close the BATTERY COMPARTMENT lid.

Microphone basics

Microphone Position The UHF-3200 is ideal for close-up vocals and can be held in the hand or mounted on a mic stand. The most common applications and placement techniques are listed below. Keep in mind that microphone technique is largely a matter of personal taste, and there is no one “correct” microphone position.

Proximity Effect When the sound source is less than ¼” from the microphone, the microphone boosts bass frequencies (by 6 to 10 dB at 100 Hz), creating a warmer and richer bass sound than when farther away. This effect, known as the proximity effect, happens only in unidirectional dynamic microphones like the UHF-3200.

Feedback Feedback occurs when the amplified sound from any loudspeaker reenters the sound system through any open microphone and is repeatedly amplified. Most commonly, feedback is caused by the following conditions: placing loudspeakers too close to microphones, having too many open active microphones, boosting tone controls indiscriminately (mainly treble), and performing in areas with high ratios of room surfaces that have hard and reflective surfaces such as glass, marble, and wood. What to do if feedback occurs before the sound system is loud enough?

• Request that the talker speak louder into the microphone.
• Reduce the distance from the talker to 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 occurs.

MICROPHONE PLACEMENT & TONE QUALITY

Lead & Backup Vocals

Lips should be less than 3” from or even touching the windscreen on an axis to the microphone. Doing this creates a robust sound, emphasizes bass, and provides maximum isolation from other sources.

Speech

When giving a speech or simply speaking, place the microphone 4” to 10” away from the mouth, just above nose height for a natural sound with reduced bass. You can also place the microphone 8” to 16” away from the mouth, slightly off to one side, for a more “distant” sound with highly reduced bass and minimal “s” sounds.

Operations

If you will be using the UHF-3200 with stage monitors and/or P.A. system, try the following:

• Place the stage monitor directly behind the microphone.
• Locate the P.A. loudspeakers so that they point away from the rear of the microphone. (With the speakers located in these positions, the possibility of feedback is greatly reduced).
• Always check the stage setup before a performance to ensure optimum placement of the microphone and monitors.

IMPORTANT: Every wireless 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 the performance time as possible.

1. Press the POWER button on the UHF-3200 receiver’s front panel. The power LED on the receiver will be RED.
2. Adjust the receiver’s VOLUME controls to approximately 50%.
3. Switch the microphone’s POWER BUTTONS to the ON positions.
4. Talk or sing into the microphones. During normal operation, the Signal Indicator LEDs will light YELLOW when a microphone is being used.
5. Adjust the receiver’s VOLUME controls until the output levels are balanced with each other and other possible source output i.e. CD+G tracks.

Troubleshooting

PROBLEMS	SOLUTIONS
No sound; receiver RF light(s) and mic(s) not lit.	Make sure POWER switches on transmitters and receiver are set to ON positions.   Check microphone batteries to ensure they are providing power.   Replace or charge batteries if necessary. Check receiver’s AC power connection. Make sure antennas are in the microphones’ line of sight.   If necessary, reduce the distance between the microphones and reciever.
No receiver sound but the RF lights are glowing.	Turn up the receiver’s VOLUME level controls.   Check for proper connection between receiver and external amplifier/mixer.   Talk into the mic and observe the receiver’s RF signal LEDs. If they glow, the problem is elsewhere in the sound system.
Received signal is noisy or contains interference with transmitter on.	Check microphone batteries and charge or replace if power is low.   Remove local sources of RF interference, such as lighting equipment. Two transmitters may be operating at the same frequencies or frequencies which are too close in proximity. Turn one off or exchange for one with a different frequency. Signal may be too weak. If so, reposition antenna (If possible, move them close to the transmitter).
Noise coming from the receiver with the mics turned OFF.	Remove local sources of RF interference, such as lighting equipment.   Reposition the receiver or antennae.
Momentary loss of sound as transmitter is moved around performing area.	Reposition receiver and perform a “walkthrough” test and observe the signal strengths. If audio droppouts persist, mark these “dead spots” in the performing areas and avoid them during the performance.
Battery running low even after recharging.	Replace rechargeable batteries (rechargeable batteries have a life of 500 hours of charging and recharging).

 

FAQs About VocoPro UHF-3200 Dual Channel Wireless Microphone System

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