Nady Systems OCTAVO U-81 User's Manual
Contents
1. ANUAL NOTES 15 U 81 OCTAVO FREQUENCY PLAN 740 MHZ 764 MHz Eight selected Frequencies in 24MHz wide Group U8 1 U8 2 U8 3 U8 4 740 10 741 20 742 70 744 60 U8 5 U8 6 U8 7 U8 8 747 40 750 70 757 60 763 60 14 TABLE OF CONTENTS TABLE OF CONTENTS uuusssussnnsnannnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnennn 3 INTRODUCTION uuu2uuu200nennnnannnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnn 3 USING THIS MANUAL uuunusssussannnennsnnnnnnnnennnnnunnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnenn 3 SYSTEM FEATURES iicsccsstsisseiacnsncseteaeadsnsteccscacasventivisacwsusdeatvacesaidedadsadsanidentsqediaveacecsas 4 U 81 OCTAVO RECEIVER OPERATION INSTRUCTIONS uurusuessnunennenannnennenennnnnnennn 5 UH 81 HANDHELD TRANSMITTER uuuauussaunennennnnnennnnunnnnnnnnannnnnnnnnnnnnnnnnnnnennnnnnnnennnnnnn 7 UB 81 BODYPACK TRANSMITTER uuusuussuusesnsnsnnnennnnnnnnnnnennnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnn 8 CAUTIONS AND TROUBLESHOOTING uu 2uur20u2u0nununnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 11 A ON 12 SPECIFICATIONS 4245420422000 a a lia 13 FREQUENCY PLAN esiseina annanassae aaraa a eaaa Ea KAE its 14 NOTES cuina A A A aa 15 SERVICE INFORMATION uuusnusssnsssnnnennnnnnnnunnnnnnnnnnnnnunnnnnnnnnnnenannnnnnnnnnen BACK COVER INTRODUCTION Thank you for choosing the Nady U 81 OCTAVO wireless system and congratulations on y2. SERVICE INFORMATION U S If you are experiencing operation problem with your system check out the support page on the Nady website www nady com for help and for contacting the Nady Service Department Should your wireless System require service you must contact the Nady Service Department at 510 652 2411 for a Return Authorization R A Number and a service quote if out of warranty Make sure the R A Number is clearly marked on the outside of the pack age Cashier s check or money is enclosed If not prepaid with credit card and ship the unit prepaid to Nady System Inc Service Department 6701 Shellmound Street Emeryville CA 94608 Include a brief description of the problem you are experiencing for service of a unit under warranty follow the instruction of your Warranty Card regarding Warranty Service International For service please contact the NADY distributors in your country through the dealer from whom you purchase this product The warranty card enclosed with this system contains additional valuable warranty and service information Keep it in a safe place for future possible reference Do not attempt to service this unit yourself as it will void the warranty AD SYSTEMS INC NADY SYSTEMS INC 6701 Shellmound Street Emeryville CA 94608 Tel 510 652 2411 Fax 510 652 5075 www nady com AD SYSTEMS INC 81 OCTAV Eight Discrete UHF Channels Wireless Microphone System OWNER S M
3. at This could degrade the performance of the U 81 OCTAVO Always ensure adequate airflow and heat dissipation in any rack configuration 2 Installing Antennas Install antennas by connecting the two antennas included with your system to the two RF TNC connectors 2 located on the left and right backside of the U 81 OCTAVO receiver The optimal positions of the antennas are 45 degrees from the receiver and 90 degree from each other For maximum range it is always best to maintain a line of sight no obstruction between the receiver antennas ant the transmitters at all time whenever possible 3 Powering The Receiver Powering the receiver by plugging the provided 15VDC 1000mA adaptor into the DC IN PUT jack 3 on the back of the receiver then plug the adapter into an AC outlet Note Any 15VDC source with 1000mA capacity can also be used Turn volume controls of all channels counterclockwise for minimum setting Once the receiver is connected to a power source press the power switch to the ON position Power LED indicator 4 is ON The TX LEDs indicator 7 and AF LEDs indicator 8 on the front panel of the receivers will not light up at this time but only until one or more of the eight channels is receiving a signal from your system s transmitters To turn OFF press the Power Switch 5 to the OFF position 4 Mute Squelch amp RF LED Display The U 81 OCTAVO has a preset mute Squelch internally for each channel for maxi m
4. duced Adjust the output level of the receiver such that the highest sound pressure level going into the microphone causes no input overload in the mixer and yet permist 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 Do not place the receiver antennas within 1 meter of another receiver or antennas e The receiver antennas should be kept away from any metal surface For the best operation the receiver should be placed at least 1 meter above the ground and 1 meter away from a wall or metal surfaces All operating transmitters should be also at least 1 meter from the U 81 OCTAVO receiver Keep antennas away from noise source such as motors automobiles neon light signal processor comput er as well as large metal objects e A single receiver cannot receive signal from two or more transmitters on the same frequency simultaneously e For operation with an external antenna low loss RF shielded cable should be used and the length of the cable should not exceed 3m e Position the receiver such that it has the least possible obstructions between it and the transmitter Line of sight is best e The transmitter and the receiver should be as close as possible but never less than 1 meter e Before inserting the batteries please make sure that they are inserted according to the correct polarity e Use only brand new alkaline batteries Do not u
5. e choice of three positions INSTRUMENT for guitar bass etc HEADWORN MIC and LAVA LIER MIC Condenser Microphones e There are two switches with selectable positions GT HM LT together at same time To select inputs see chart on page 9 A Instrument set both switches to GT B Headworn Mic set both switches to HM C Lavalier Mic set both switches to LT Note Use only the input audio source as per the input selected with the internal Audio input selector switches 17 or the audio will not be optimal a muddy or distorted sound may result e Connection for the selected input to the UB 81 is provided with a 3 5 mm Locking jack 18 for connecting the audio input selected Connect either the Instrument cord 19 or the Headworn mic 20 or Lavalier mic cord 21 as desired according to the input selected To secure the connection turn the slip ring on the plug clock wise to thread it on the jack To unplug reverse the process Slip the transmitter into a pocket or Clip 22 it on to your clothes or instrument strap if using the UB 81 as an instrument transmitter e Turn on the UB 81 by sliding the ON STDBY OFF switch 23 to the STANDBY posi tion transmitter on audio muted or the ON position transmitter and audio both on The Battery indicator LED 24 will give a single quick flash indicating usable battery strength In the case of a dead or low battery the LED either will not go on at all or w
6. ill stay on continuously indicating that the battery should be replaced with a fresh one To conserve battery life turn unit off when not in use e The U 81 transmitter is now ready to use The RF Signal LED 7 on the correspond ing channel of the U 81 OCTAVO receiver should now be lit indicating a received signal from the same frequency transmitter e Adjust the volume of the receiver as per the Connecting Audio Outputs section 6 of the U 81 OCTAVO receiver instructions above Note Observe care in selecting PA volume transmitter location and speaker placement so that acoustic feedback howling 8 UB 81 BODYPACK MIC TRANSMITTER and screeching will be avoided Please also note the pickup pattern characteristics of the microphone selected Omni directional mics pick up sound equally from all direc tions and are prone to feedback if not used carefully Unidirectional mics are more resistant to feedback but pick up sound sources best that are directly in front of the mic Also mics that are farther from the sound source such as lavaliers require more acoustic gain and thus are also more prone to feedback than close source mics such as handheld or headworn models that are used close to the mouth 9 Microphone Use with either a lavalier or headworn mic e Secure the connection from the Lavalier 21 or Headworn mic cord 20 by turning the slip ring on the plug into the transmitter clockwise to thread it on to the jack To un pl
7. l 25 is deactivated and not used when the UB 81 is in Instrument GT mode Levels should be adjusted with the volume control of your instru ment Note Scratchy noises can sometimes occur when some electric guitars with dirty pots or connections are used with any wireless system Therefore the supplied Instrument cord 19 has a factory installed capacitor inside the 1 4 plug This capacitor provides first order filtering of the RF signal from the cord into the guitar and eliminates virtually all scratchy noises Should your equipment still give you scratchy noises we suggest these Steps to eliminate them Make sure all guitar volume and tone pots are clean and all contacts are solid this is very important A 47pf capacitor soldered across the hot to ground terminals of the guitar s volume and tone pots will provide extra filtering
8. m performance it is recommended that you replace the battery after every 6 8 hours of use NiMH batteries should be replaced with fresh ones recharged fully with separate charger not supplied and as per its charging instructions whenever low or dead battery status is indicated as per the following Turn on the UH 81 by sliding the ON STDBY OFF switch 13 to the STANDBY posi tion first transmitter on audio muted or the ON position transmitter and audio both on The Battery indicator LED 14 will give a single quick flash indicating usable battery strength In the case of dead or low batteries the LED will either not go on at all or will stay on continuously indicating that the batteries should be replaced with fresh ones To preserve battery life turn the transmitter off when not in use The microphone is now ready to use The RF Signal LED 7 on the corresponding channel of the U 81 OCTAVO receiver should now be lit indicating a received signal from the same frequency transmitter When ready to speak slide the ON STDBY OFF switch 13 to the ON position e Adjust the volume of the receiver as per the Connecting Audio Outputs section 6 of the U 81 OCTAVO receiver instructions above Note Observe care in selecting PA volume transmitter location and speaker place ment so that acoustic feedback howling and screeching will be avoided Please also note the pickup pattern characteristics of the microphone selected Omni directi
9. na SPECIFICATIONS OVERALL SYSTEM PERFORMANCE RF Carrier Frequencies Selected factory installed frequencies between 740MHz 806MHz Frequency stability e cccccccissccsscessseaseccezseceicasseseactivecnasssecoacetecriavesnt 0 005 Crystal Controlled Audio Deviation u se nern rennen FM 20kHz normal 50KHz maximum Frequency Response cuiii ssc ences a ce 20Hz 20kHz 3dB Dynamic Range Harmonic Distortion Operating Range dina 0 5 THD normal 250 feet normal 500 feet max line of sight RECEIVER Receptlon nn cect cease pect eves eae cn donostia balada Mono antenna reception Antennas 10 25 4 cm Dual adjustable angle Mute Threshold ccccccceeeeeceeeeeeeeeeeeceeeeeaeeeseeeeeseeeeeseaeeeseeeeeseees 95dBm none adjustable Image Rejection oocmtcnsaiianr alte ios oir 70dB minimum Balanced output nenn Audio outputs 24mV variable level 600 Ohms Unbalanced MIX output Audio output 360mV variable level Open load COMMOCLONS ois czcisncsscsterectesteveencsacerdevecsetavarverperncene Balanced XLR Unbalanced 14 TS Antennas TNC connector DC in 2 1mm barrel type Indicators hai Sevens sa oe A Oaai EREA Power On RF and AF LEDs Controls Power ON OFF buttons Volume Controls Power REQUIFEMENN 5 oie cso ci csc snncesscneseetancunennien te codadocnanarvtns Cosuedoagenabeuseendsber
10. onal mics pick up sound equally from all directions and are prone to feedback if not used carefully Unidirectional mics as provided with the UH 81 are more resistant to feedback but pick up sound sources best that are directly in front of the mic Also mics that are farther from the sound source such as lavaliers require more acoustic gain and thus are also more prone to feedback than close source mics such as handheld or headworn models that are used close to the mouth _ UB 81 BODYPACK MIC TRANSMITTER 8 UB 81 Transmitter Set Up e Install by battery for the UB 81 transmitter by snap opening the Battery door 15 and inserting a fresh 9V alkaline or NiMH battery into the Battery compartment 16 ob serving the correct polarity Close the battery door to its original position and complete ly cover the battery Fresh alkaline batteries can last up to 10 hours in use but in order to ensure optimum performance it is recommended that the battery be replaced after 6 8 hours of use ANiMH battery should be replaced with another recharged fully with separate charger not supplied and as per its charging instructions whenever low or dead battery status is indicated as per the following e Selecting Audio Input Operating Mode of the UB 81 The UB 81 is equipped with two Input selector switches 17 located under the cover on the circuit board for selecting the type of audio input you will be supplyin g to the transmitter Select from th
11. or each channel e Ch 1 8 individual balanced XLR MIC level outputs and Unbalanced LINE level SUM 14 jack output for 8 in 1 MIX audio output with separate volume control for each channel e Nady s exclusive patented companding circuitry with 120dB dynamic range and highest quality audio for an unsurpassed UHF performance e Dual removable high gain antennas with TNC connector front or back mounting e Standard 19 1U all metal rack mount housing e Externally powered with AC DC adapter included e Choice of any combination of 2 transmitters UH 81 and or UB 81 UH 81 Handheld Microphone Transmitter e Nady DM 50D neodymium cartridge delivers transparent vocals maximum feedback rejection and minimal handling noise e ON STDBY OFF switch allows convenient audio muting while transmitter ON e Status LED indicator flashes once for unit ON lights steady for low battery alert e 2 X AA alkaline or NiMH battery operation e Rugged ABS and rubber coated housing with integral antenna UB 81 Bodypack Transmitter e Choice of headworn or lavalier microphone operation with convenient input volume control for proper level adjust or instrument operation without input level control e OFF STDBY ON switch allows convenient audio muting while transmitter ON e Status LED indicator flashes once for unit ON lights steady for low battery alert e Single 9V alkaline or NiMH battery e Lightweight rugged ABS housing with integral anten
12. our choice The Nady U 81 OCTAVO wireless system is by far the best perfor mance and price value in a professional 8 channel UHF wireless It offers clear channel operation on the wide open uncluttered UHF band for interference free performance in any application or locale The Nady U 81 OCTAVO delivers eight discrete channels on selected frequency bands from 740MHz to 764MHz The Nady U 81 OCTAVO Wireless system feature Nady s proprietary companding and low noise circuit for an industry best 120dB dynamic range and the clearest most natural sound available in wireless today USING THIS MANUAL This booklet gives instructions for the operation of the U 81 OCTAVO wireless systems The U 81 OCTAVO wireless microphone receiver the UH 81 Handheld Microphone transmitter and the UB 81 bodypack microphone instrument transmitter This manual will first explain the benefits of the U 81 OCTAVO Wireless System and then will take you step by step on how to operate your new system Each section will give you detailed information Also included in this manual are the frequency chart microphone wiring guide system specifications and servicing information SYSTEM FEATURES U 81 OCTAVO Wireless Receiver e Operates on select UHF frequencies from 740MHz to 806MHz e Eight independent single channel UHF wireless receivers in a single housing for simul taneous operation for up to eight transmitters e Front panel LED display indicates the RF and AF status f
13. petaessecone 15VDC 1000mA Dimensions 14 25 x 12 x 1 75 W D H 36 20 cm x 30 50 cm x 4 45 cm W D H WINE aa O 7 20 Ibs 3 37 Kg TRANSMITTERS Models Available ooooooooconocccinnocccinnccccconcccccnnccccnarcccnnnnos UH 81 Handheld and UB 81 Bodypack Input Connectors UH 81 Handheld Integral Nady DM 50D neodymium dynamic cartridge U B 81 B dypack 2 u tee Nenn 3 5mm locking mini jack Controls UH Sian olen bts een an ae Power ON STDBY OFF UB 81 ON STDBY OFF Input Level Control LT HM selectable inputs GT HM LT switches RE P wer nn ii rada 20mW normal 50mW Maximum allowed by FCC Harmonies and Spurs tii ee ee ante lt 50 dB Antena Sanse caida UH 81 UB 81 Internal antennas LED Indicators UH SW UB 81 iniia Single LED flashes once for ON lights steady for LOW BAT Battery A sale 2xAA Alkaline or NiMH batteries Single 9V Alkaline or NiMH battery Battery bite eiis re een 8 10 Hours Alkaline Dimensions URES dia een 10 5 x 1 875 26 7 cm x 4 8 cm UB 81 4 25 x 2 5 x 1 0 10 8 cm x 6 4 cm x 2 5 cm Welghf 2 2 22 nee ent Dia UH 81 7 5 oz 213 g without battery A een ats eisernen 3 1 oz 88 g without battery 13 TIPS e If the Volume Control of the receiver is set too high it may over driver the input of the mixer causing distortion Conversely if the output is set too low the overall signal to noise ratio of the system may be re
14. se general purpose batteries When batteries are weak replace the batteries altogether at the same time Do not mix and use new and old batteries together e Turn the transmitter off when it is not in use Remove the batteries if it is not to be used for a long period e Headset and lavalier mic users note that the microphone element can easily be destroyed by the buildup of salts and minerals from perspiration and saliva It is good practice to put a windscreen on the mic at all times to protect it Note Scratchy noises can sometime occurs when some electric guitars with dirty pots or connections are used with any wireless system Therefore the supplied capacitor provides first order filtering of the RF signal from the cord into the guitar and eliminates virtually all scratchy noises Should your equipment still give you scratchy noises we suggest these steps to eliminate them e Make sure all guitar volume and tone pots are clean and all contacts are solid this is very important e A 47pF capacitor soldered across the pot to ground terminal of the guitar s volume and tone pots will provide extra filtering 12 U 81 OCTAVO RECEIVER OPERATING INSTRUCTIONS 1 Rack Mounting The Receiver The U 81 OCTAVO receiver has pre drilled holes for rackmounting Simply attach the Rack Mount Ears 1 on each side and fasten with supplied screws Note Do not mount the receiver in a rack directly above an amplifier or other source of high he
15. 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 e 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 e 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 e Only one transmitter can be used with one receiver It is not possible to use two transmi
16. tters on the same frequency and mix the output of these transmitters into one wireless receiver Of OE al OE OE 9 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 recei
17. ug reverse the process To use the lavalier mic attach it at chest level Do not place it too close to the mouth a distance of about six inches usually works best To use the headworn mic place it on the head and adjust the boom so that the mic is about one inch to the side of the front of the mouth When ready to speak slide the ON STDBY OFF switch 23 to either the STDBY or ON position e For optimum performance an Input level control 25 is provided Adjust the gain by turning the control with a small screwdriver For lavalier mic use it is recommended that the level be set at about 1 2 maximum For headworn mic use it may be advisable to turn the gain down somewhat depending on the volume levels expected In either application experiment and set for maximum possible gain without audible distortion on the high level peaks Note Turning down the gain too much can compromise the signal to noise and it is not recommended 10 Instrument Use Optional Secure the connection from the GT cable 19 by turning the slip ring on the plug into the transmitter clockwise to thread it on the jack To unplug reverse the process Plug the 1 4 phone plug into the instrument When ready to play slide the audio ON STDBY OFF switch 23 to either the STDBY or ON position Adjust the volume of the receiver as per the Connecting Audio Outputs section 6 of the U 81 OCTAVO receiver instruc tions above Note The Input level contro
18. um range and performance There is no need to adjust this In normal condition the RF LEDs indicator 7 should be lit when a correct frequency is received from a transmitter However when the RF LEDs indicator 7 is extinguished the transmitter is out of range for that given location and the user should move closer to the receiver to re establish the radio link 5 AF LED Display The U 81 OCTAVO receiver is equipped with an AF LEDs indicator 8 The AF LED indicator lights whenever an audio signal is being received from a modulated transmitter signal The AF LED indicator is not a peak level indicator so it can light continuously dur ing audio signal input to the transmitter 6 Connecting Audio Outputs Using the UH 81 handheld or UB 81 bodypack transmitters e For microphone use the Balanced XLR out 9 or the 1 4 MIX out 10 can be used The U 81 OCTAVO audio output stage of each channel is configured for XLR balanced microphone level with an output loading of 600 ohms to accommodate both balanced and unbalanced mics Make sure the Phantom Power on your mixing board in turned off and the volume in turn down when making the audio connections Start the receiver VOLUME at minimum and adjust until the level is optimal U 81 OCTAVO RECEIVER OPERATING INSTRUCTIONS e 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
19. ving 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 11 UB 81 BODYPACK MIC TRANSMITTER SWITCHES GT HM LT mM E Instrument GT HM LT Headworn GT HM LT Lavalier 10 UH 81 HANDHELD MIC TRANSMITTER 7 UH 81 Transmitter Set Up e Release the Battery cover 11 by pressing the locking tab and slide down as per ar row exposing the Battery holder 12 Insert two fresh AA alkaline or NiMH batteries observing the correct polarity as marked and slide the battery cover back on to the mi crophone Make sure the cover is closed completely Fresh alkaline batteries can last up to 10 hours in use but in order to ensure optimu
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