VocoPro VHF-3300 Microphone User Manual
Contents
1. 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 routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the appliance 13 Cleaning Unplug this unit from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 14 Power lines An outdoor antenna should be located away from power lines 15 Nonuse Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time 16 Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings 17 Damage Requiring Service The appliance should be serviced by qualified service personnel when The power supply cord or plug has been damaged or Objects have fallen into the appliance or The appliance has been exposed to rain or The appliance does not appear to operate normally or exhibits a marked change in performance or The appliance has been dropped or the enc2. MIL LIS IAT ULTIMATE CHOICE OF KARAOKE ENTERTAINMENT Features Dual Antenna Receiver design doubles as a Mic Charger Holder Squelch Circuitry Eliminates Background and RF Noise Bursts VHF band Quartz Lock for drift free operation Auto mute circuitry provides noiseless ON OFF switching Individual front panel Volume controls for precise vocal level mixing Dual 1 4 unbalanced outputs for separate and mixed signal output Excellent operating range up to 150 feet Dual front panel RF LED indicators 19 rackmountable to occupy a single rack space with included mounting brackets Built in charger on top of reciever both rechargers mic batteries and secures mics when not in use VALCO O i VHF 3300 TaN 1 RF WIRELESS VHF DUAL CHANNEL RF N J s RECHARGEABLE MIC SYSTEM s 7 S O S POWER E VOLUME Dual Channel Rechargeable Wireless Microphone System Safety Instructions AN CAUTION RISK OF SHOCK CAUTION To reduce the risk of electric shock do not remove cover or back No user serviceable parts inside Only refer servicing to qualified service personnel Explanation of Graphical Symbols The lightning flash amp arrowhead symbol within an equilateral triangle is intended to alert you to the presence of danger The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and servicing ins
3. vocal ranges It is really a matter of preference and depends on the singer To avoid a lessened sound quality when using the proximity effect keep these tips in mind Always try to use available EQ or tone controls on external equipment to enhance a sound before trying to make use of Proximity Effect When experimenting with Proximity Effect for the first time try it in a small room with moderately low volume and no tone or effects adjustments to get a sense for whether it can be of use to you e Do not try to enhance a sound source without performing a sound check at the location prior Do not rely on the proximity effect to change a persons voice Rather use it to enhance one s voice Avoid the proximity effect in environments with excessive reverb cathedrals school gymnasiums large dancehalls etc Try to avoid the proximity effect when connected to high output amplifiers and loudspeakers Remember that when speaking into a microphone plosive words can generate loud pops which will also be boosted by the proximity effect leading to a possible threat to external sound equipment Microphone Basics cont Feedback Feedback is the phenomenon that occurs when an amplified sound from any loudspeaker reenters the sound system through any open microphone and is amplified over and over again The resulting sound is an annoying howl that when loud enough poses a serious threat to not only your speakers but to your
4. Basics The Proximity Effect 0008 7 Eee EE BAGE Bio S20 oer en ee eee ere 8 300 Placement and Tone Quality 8 i a Nia Stage Monitors P A Loudspeakers 8 LOAD IMPEDANCE Operations gt 10000 Operating the System 08 9 Achieving Optimum Performance 9 SELF NOISE Auto Noise Squelch Feature 9 Reciever Volume Adjustment 9 16dB A Troubleshooting MAX INPUT S P L Problems and Solutions 0 10 135dB AT 1KHZ 1 THD S N RATIO 78dB OPERATING VOLTAGE DC 48V PHANTOM 5V N 2 4 LAL LAIS S L ULTIMATE CHOICE OF KARAOKE ENTERTAINMENT 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 esta
5. OLUTIONS No sound receiver RF light s and mic s not lit No receiver sound but the RF and Audio Level meter lights are glowing Received signal is noisy or contains interference with transmitter on Noise coming from the receiver with the mics turned OFF Momentary loss of sound as transmitter is moved around performing area Battery running low even after recharging 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 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 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 Remove local sources of RF interference such as light
6. blish a safe level e Start your volume control at a low setting e Slowly increase the sound until you can hear it comfortably and clearly and without distortion Once you have established a comfortable sound level e Set the dial and leave it there e 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 Example 30 Quiet library Soft whispers 40 Living room Refrigerator Bedroom away from traffic 50 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 truck Chainsaw Pneumatics drill 120 Rock band concert in front of speakers 140 Gunshot blast Jet plane 180 Rocket launching pad Information courtesy of the Dea
7. ears as well Most commonly feedback is caused by the following conditions Placing loudspeakers too close to the microphones Having too many open active microphones Overemphasis boosting high frequency tone controls Performing in environments with high ratios of hard and reflective room surfaces Overemphasis of effects that generate multiple harmonic repetitions reverb echo delay What can you do if feedback occurs before the sound system is loud enough Request that the singer speaker project their voice louder into the microphone allowing for a lower master volume Reduce the distance from the talker to the microphone Each time this distance is halved the sound system output will increase by 6dB mainly in the low frequency range Reduce the number of open microphones Move the loudspeaker farther away from the microphone Move the loudspeaker closer to the listener Use an equalizer feedback reducer to cut the frequency bands in which the feedback occurs Microphone Placement and Tone Quality The VHF 3300 is ideal for close up vocals and the mic can be handheld or mounted in a mic stand Keep in mind that microphone technique is largely a matter of personal taste there is no one correct microphone position Lead and Backup Vocals The performer s mouth 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 p
8. er Service amp 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 VocoPro for Karaoke news and events chat rooms club directories and even a KJ Service directory We look forward to hearing you sound like a PRO with VocoPro your ultimate choice in Karaoke entertainment FOR YOUR RECORDS Please record the model number and serial number below for easy reference in case of loss or theft These numbers are located on the rear panel of the unit Space is also provided for other relevant information Model Number Serial Number Date of Purchase Place of Purchase VHF 3300 Dual Channel Wireless Microphone System Contents Specifications Introduction ELEMENT Safety Instructions ccccccceeeeeeeee 1 VVEICOM Osirisen israk baran 2 PRESSURE GRADIENT TRANSDUCER SS PSCIMCAN ONS vinea 3 Listening For a Lifetime 4 POLAR PATTERN Getting Connected UNI DIRECTIONAL Connecting the VHF 3300 3 Microphone Battery Installation 9 Charging Batteries cccceceeeeees 5 FREQUENCY Descriptions and Controls 20HZ 20KHZ et lls E E E E A E SENSITIVITY Mi PONE scasssnocvanpemiedswnmhincdaniatntescas 7 ae ad 33dB 2dB 0dB 1V PA AT 1KHZ Microphone
9. fness Research Foundation Getting Connected Connecting the VHF 3300 To get your system up and running in just a few minutes follow the quick start instructions on this page 1 Connect the AC power adapter to the receivers power connector then plug the adaptor into an AC electrical outlet 2 Connect the receiver to a mixer or sound system with either one of the 1 4 output jacks for mixed output or use both 1 4 output jacks for separate channel output The advantage of combining both mics to a single output is only occupying one channel of an external mixer amplifier but the disadvantage would be that adjustments in mic volume tone and external effects cannot be isolated to each mic When using both outputs provided with separate line cables you will be able to make adjustments to each mic individually but you will use 2 channels of your external sound system Microphone Battery Installation Press down on grooved tab at the base of the microphone and push out in the direction of the arrow to open battery compartment Insert a new rechargeable 9 volt alkaline battery Warning The VHF 3300 can be operated with non rechargeable batteries but DO NOT place microphone back in the recharger with regular batteries installed even if the power is turned off CHARGING A REGULAR NON RECHARGEABLE BATTERY MAY CAUSE THE BATTERY TO EXPLODE Installation 9 Volt Battery Charging Batteries When a microphone needs battery charging
10. ing equipment Reposition the receiver or antennae 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 Replace rechargeable batteries rechargeable batteries have a life of 500 hours of charging and recharging 10
11. losure damaged m OOQOWS 18 Servicing The user should not attempt to service the appliance beyond that described in the operating instructions All other servicing should be referred to qualified service personnel Note To CATV system installer s U S A This reminder is provided to call the CATV system installer s attention to Article 820 40 of the NEC that provides guidelines for proper grounding and in particular specifies that the cable ground shall be connected as close to the point of cable entry as practical VIL LSS ILA ULTIMATE CHOICE OF KARAOKE ENTERTAINMENT s Welcome And Thank you for purchasing the VHF 3300 from VocoPro your ultimate choice in Karaoke entertainment With years of experience in the music entertainment business VocoPro is a leading manufacturer of Karaoke equipment and has been providing patrons of bars churches schools clubs and individual consumers the opportunity to sound like a star with full scale club models in home systems and mobile units All our products offer solid performance and sound reliability and to further strengthen our commitment to customer satisfaction we have customer service and technical support professionals ready to assist you with your needs We have provided some contact information for you below VocoPro 1728 Curtiss Court La Verne CA 91750 Toll Free 800 678 5348 TEL 909 593 8893 FAX 909 593 8890 VocoPro Company Email Directory Custom
12. ove the mic closer to your mouth for extra bass response Use only one microphone per person or sound source Place microphones far from sound reflecting surfaces Add a windscreen when using the microphone outdoors for close up speech or vocals Avoid excessive handling to minimize mechanical noise Auto Noise Squelch Feature Squelch circuits analyze Radio Frequency RF signal strength When a wireless system is used in a noisy RF environment conventional ciruits may open unexpectedly sending loud bursts of noise through the reciever when the transmitter s signal is weak or turned off The VHF 3300 uses a noise squelch circuit that analyzes signal quality with the signal strength When the transmitter signal is strong the system s noise level is low and the reciever sends audio through When the transmitter signal is weak or absent the system s noise level is high and squelch circuit will mute the receiver This virtually eliminates the possibility of annoying bursts of noise coming through your receiver Receiver Volume Adjustment The volume controls on the front panel of the VHF 3300 receiver can be adjusted to set the wireless system output levels as you desire After making any musical balancing adjustments adjust the receiver volume control until the output reaches the desired level Rotate the volume control clockwise to increase output Rotate it counterclockwise to decrease output Troubleshooting PROBLEMS S
13. own The LED next to the POWER button on the receiver will glow RED 2 Switch the microphone s power button to ON During normal operation the RF signal LED for each mic will light GREEN 3 Talk or sing into the microphones while gradually adjusting the receiver VOLUME controls until you reach the desired output level Tips for Achieving Optimum Performance It can be difficult to adjust VOLUME on the VHF 3300 and your sound system without creating feedback while standing so close to the receiver It is recommended to have one person test the mics from a distance while another increases the VOLUME levels for a better monitoring of your sound Place the receiver at least 3 feet or 1 meter above the ground and away from concrete walls or metal surfaces to prevent any reflections The microphone should also be at least 3 feet away from the receiver s antenna If using multiple wireless systems maintain a distance of at least 10 feet 3 meters between each Maintain a line of sight between the microphone and receiver antennas if possible Avoid placing the receiver near computers or other RF generating equipment Avoid placing the reciever at the bottom of an equipment rack Extend telescopic antennas completely and as far apart from each other as possible They can rotate in opposing directions to facilitate this Position the microphone 1 to 1 5 from the mouth or as close as practical to the desired sound source M
14. pplied AC adaptor Rear Panel 2 OUTPUT o O ji CH B MIXEI IER CH A B TO A SINGLE CABLE CH A DC 12vV 400 MV WTPUT USE EITHI NAL WITH FOR MIXED OUTPI OUTPUT A MIXED MIC SIGI Microphone Descriptions and Controls Microphone 1 GRILL Protects the microphone cartridge and helps reduce breath sounds and wind noise via enclosed foam windscreen 2 POWER BUTTON Places the microphone in ON OFF or STANDBY center position modes 3 BATTERY COVER Removeable cup holds and protects the rechargeable microphone battery Microphone Basics The VHF 3300 s ability to pick up extremely high and low frequencies makes it an excellent choice We have provided a few tips to help get the best performance out of your VHF 3300 Understanding the Proximity Effect The Proximity Effect is a resulting boost to the low frequency range of sounds that occur with the close up use of microphones designed with a uni directional polar pattern such as the VHF 3300 When the sound source is less than a from the microphone capsule the boost is generated mostly in the 100Hz range by 6dB to 10dB In other words when a sound source is less than a 1 4 from the microphone the sound will be output with a stronger and richer bass tone than if the sound source was farther away from the microphone While the proximity effect can intentionally be used as an advantage to enhance some voices it may have an undesired effect on certain
15. rovides maximum isolation from other sources Speech For spoken segments in between songs or public speaking types of applications of the VHF 3300 place the mic 4 to 10 away from your 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 ambient sound with greatly reduced bass and minimal S or sibilance sounds The VHF 3300 amp Stage Monitor P A Loudspeakers If you will be using the VHF 3300 with stage monitors and or a P A system try the following Place the stage monitor s directly behind the microphones Locate the 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 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 test of the system in the performing area If major changes additional wireless systems or intercoms relocation of set up etc have been made since the last test check the wireless system again as close to performance time as possible Operations Operating the System 1 Press the receiver POWER switch with the VOLUME CONTROLS turned d
16. tructions WARNING To reduce the risk of fire or electric shock do not expose this unit to rain or moisture 1 Read Instructions All the safety and operating instructions should be read before the appliance is operated 2 Retain Instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to 4 Follow Instructions All operating and use instructions should be followed 5 Attachments Do not use attachments not recommended by the product manufacturer as they may cause hazards 6 Water and Moisture Do not use this unit near water For example near a bathtub or in a wet basement and the like 7 Carts and Stands The appliance should be used only with a cart or stand that is recommended by the manufacturer 7 A An appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause an overturn 8 Ventilation The appliance should be situated so its location does not interfere with its proper ventilation For example the appliance should not be situated on a bed sofa rug or similar surface that may block the ventilation slots 9 Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliances including amplifiers that produce heat 10 Power Sources
17. with the ON OFF switches facing towards the front panel the chargers are making contact with the metal strips on the base of the microphones When contact has been made between a charger and a mic the CHARGE INDICATOR light will be glowing red An eight hour charge will provide you with 1 to 2 hours of continuous wireless microphone use When the microphone is fully charged the CHARGE INDICATOR light will automatically stop glowing and you can perform Rechargeable batteries have a life of approximately 500 hours of charging and discharging before they will need to be replaced Charging Charge Indicator Charge Indicator Front Panel Descriptions and Controls 1 POWER BUTTON Turns the VHF 3300 ON OFF 2 POWER ON LED Glows RED when the receiver is powered ON 3 RF SIGNAL LED Glows GREEN when Radio Frequency signals are received by antenna A and or B 4 VOLUME CONTROLS Adjusts the OUTPUT volume of the receiver s mic channels 5 CHARGING TERMINAL Makes contact with mic base to charge batteries or holds mic in between charges 6 CHARGING INDICATOR LIGHT Illuminated while microphones are charging Front Panel 7wWIRELESS VHF QUAL CHANNEL RF RECHARGEABLE MIC SYSTEM O Rear Panel Descriptions and Controls 1 TELESCOPING ANTENNAE Receives the SIGNALS sent from the microphones 2 OUT A amp B These 1 4 jacks provide mic output for connection to amplifiers and mixing consoles 3 POWER INPUT Accepts POWER from su
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