Nady Systems Microphone 151VRHTSYSTEMA User Manual

NADY 151 VR  
 
SPECIFICATIONS  
Overall System Performance  
TABLE OF CONTENTS  
Frequency Response ....................................................................................25 - 20,000 Hz ± 3 dB  
Dynamic Range..........................................................120 dB (max SPL to A-weighted noise level)  
Harmonic Distortion ..............................................................................................................< 0.3%  
RF Carrier Frequency....................................One of four standard channels in the VHF high band  
Frequency Stability ..................................................................................±.005%, crystal controlled  
Modulation ..................................................................................................................FM, ± 15 KHz  
Operating Range ......................................................up to 250 feet (depending on site conditions)  
Using this Manual..................................................................3  
151 VR Receiver ..................................................................4  
WLT Lavalier Bodypack Transmitter ......................................6  
WHT Handheld Microphone Transmitter ..............................8  
Specifications ......................................................................10  
Service ................................................................................10  
151 VR Receiver  
Controls ......................................................Headphone volume controls with unit OFF/ON switch,  
Mute adjust, Audio output level adjust  
Audio output ....................................................................................................600 ohm unbalanced  
Connectors ..............................Audio output; 3.5 mm mini jack; Headset output; 3.5 mm mini jack  
LED Indicators .............."TX" on; “LOW BATT”: unit "ON" (single flash), Low Battery Alert (steady)  
Mute ............................................................................Externally adjustable; 1 µV preset minimum  
Unwanted Signal Rejection ....................................................................60 dB image and spurious  
Power Requirements ..............................................................................Single 9V alkaline, internal  
Antenna ................................................................................................................Attached Softwire  
WLT Lavalier Bodypack Transmitter  
Audio Input ..............................3.5 mm mono locking jack for connecting to omni or unidirectional  
Thank you for purchasing a Nady 151 VR wireless camcorder microphone  
system—and congratulations on your choice. The 151 VR operates on long-  
range interference-free VHF high band frequencies. It also utilizes a patented  
companding noise reduction system for excellent dynamic range (120 dB) and  
hiss-free performance. The 151 VR will make a tremendous difference in your  
videos, adding professional quality audio to ever y production.  
lavalier mic or unidirectional head worn mic, with phantom power.  
Controls......................................................................OFF/STANDBY/ON switch, input level adjust  
LED Indicators..................................................Unit "ON" (single flash), Low Battery Alert (steady)  
RF Power Out..........................................................................50 mW (maximum allowed by FCC)  
Harmonic and Spurious Emissions ....................................................................................> -40 dB  
Battery ............................................................................................................................9V alkaline  
Battery Life ................................................................................................................Up to 15 hours  
Using this Manual  
WHT Handheld Microphone Transmitter  
Please read these instructions completely before operating your unit. This  
booklet gives instructions for the operation of the Nady 151 VR wireless  
system which consists of a wireless receiver, an audio cord to connect the  
receiver to your camcorder, and a wireless microphone transmitter—either the  
WLT lavalier or Nady WHT handheld.  
Audio Input................................................................Nady DM-10D neodymium dynamic cartridge  
Controls ..................................................................................................OFF/STANDBY/ON switch  
LED Indicators..................................................Unit "ON" (single flash), Low Battery Alert (steady)  
RF Power Out..........................................................................50 mW (maximum allowed by FCC)  
Harmonic and Spurious Emissions ....................................................................................< -40 dB  
Battery ............................................................................................................................9V alkaline  
Service for your Nady Wi reless System  
(U.S.) Should your wireless system require service, please contact the Nady Service Department  
via telephone at (510) 652-2411 or e-mail to service@nady.com 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 package and enclose a cashier's check or money order (if not prepaid with a  
credit card). Ship the unit prepaid to: Nady Systems, Inc., Service Department, 6701 Shellmound  
Street, Emeryville, CA 94608. Include a brief description of the problem you are experiencing.  
The warranty card enclosed with this system contains additional valuable warranty and  
s e rvice information. Keep it in a safe place for possible future reference. Do not attempt to  
s e rvice this unit yourself as it will void the warranty.  
(International) For service, please contact the Nady distributor in your country through the dealer  
from whom you purchased this product.  
10  
3
 
NADY 151 VR RECEIVER  
• Rugged receiver can be camera mounted or worn on the body (with  
removable belt clip)  
• Easy hookup to camcorder with supplied connecting cable  
• Powered by a 9V Alkaline battery in a convenient “pop-open” battery  
compartment  
• LED lights indicate low battery and receiver signal  
• Attached softwire antenna extends from the top of the receiver  
(22)  
• Convenient operation with Output Level and Mute Adjusts, separate  
3.5mm Audio Output and Monitor Headphone mini jacks and Headphone  
Volume thumbwheel control with integrated unit OFF/ON switch  
Battery Indicator LED  
Operating Instructions  
Powering the Receiver  
Slide the receiver’s battery cover open and place a fresh 9V battery in the  
BATTERY COMPARTMENT (1), observing the correct polarity. Although a  
fresh alkaline battery can last up to 8-10 hours in use in the receiver, in order  
to ensure optimum performance it is recommended that the receiver battery  
be replaced after 5 hours of use. Turn the receiver on by rotating the  
ON/OFF/VOLUME WHEEL (8) clockwise. The LOW BATT LED (9) will flash  
briefly, indicating adequate battery strength. If the LOW BATT LED (9) lights  
during use, replace battery.  
(21)  
OFF/STANDBY/ON Switch  
Antenna  
When the system is in use, the 151 VR receiver's ANTENNA (2) should be  
fully extended to obtain maximum range.  
Mute Adjustment  
In normal operation, the MUTE CONTROL (3) should be set fully counter-  
clockwise to the factory preset RF level of 1 µV. However, in areas of high  
RF activity, the mute may need to be adjusted. If, with transmitter off, the  
receiver’s TX LED (4) flickers or stays on, the MUTE CONTROL (3) should  
be turned clockwise until the TX LED (4) extinguishes.  
(19)  
Battery Holder  
When the mute is properly adjusted, the TX LED will light only when the  
system transmitter is turned on.  
a quieter mute function, but reduce your operating range.  
(20)  
9V Alkaline Battery  
Note: Turning the mute control too far clockwise will yield  
Connecting Audio Output  
Plug one end of the audio cable provided into the RECEIVER OUTPUT  
JACK (5). The other end should be plugged into your camcorder.  
9
4
 
Connecting Headphone to Monitor  
WHT HANDHELD MICROPHONE TRANSMITTER  
You can monitor the received signal through headphones to set the  
transmitter’s level trim properly. Any “Walkman” type headset with a mini plug  
or mini plug adaptor can be used, although the signal may be heard in only  
one ear unless a stereo-to-mono adapter jack is used.  
• Features the Nady DM-10D unidirectional neodymium dynamic cartridge  
for optimum true sound, maximum feedback rejection and minimal  
handling noise  
• OFF/STANDBY/ON switch allows convenient audio muting with the  
transmitter "ON"  
Monitoring through Receiver  
Plug headphones into HEADPHONE JACK (6) on the receiver. The  
ON/OFF/VOLUME WHEEL (8) controls volume to the headset. Set the  
volume to a comfortable level by rotating the VOLUME WHEEL (8). You will  
be able to hear the received signal to the receiver when the system is  
operational.This is the monitoring method necessary when adjusting the WLT  
transmitter’s microphone input level per page 6.  
• Low battery LED indicator flashes once for unit "ON"; lights steady for low  
battery alert  
Operating Instructions  
1. U n s cwr ethe BATTERY COMPARTMENT COVER (18) and remove,  
exposing the BATTERY HOLDER (19). Inser t a fresh 9V ALKALINE  
BATTERY (20), observing the correct polarity as marked, and screw the  
cover back on to the microphone. Make sure the cover is screwed on  
completely. A fresh alkaline battery can last up to 15 hours in use, but in  
order to ensure optimum performance, it is recommended that you replace  
the battery after every 10 hours of use.  
Monitoring through Camcorder  
Many camcorders allow the user to monitor by providing a headphone jack. If  
you plug your headphones into the camcorder, you may need to make a  
simple adjustment on the 151 VR receiver. If the sound you hear is  
uncomfor tably loud or sounds distorted, turn the OUTPUT LEVEL  
CONTROL (7) counter-clockwise until good audio quality is obtained. If  
volume is too low, turn  
the OUTPUT LEVEL  
CONTROL (7) clock-  
wise until you obtain  
comfortable volume.  
(2)  
(6)  
(5)  
(9)  
2. Turn on the WHT by sliding the OFF/STANDBY/ON SWITCH (21) to the  
STANDBY position (transmitter on, audio muted) or the ON position  
(transmitter and audio both on). The BATTERY INDICATOR LED (22) will  
g i ev a single quick flash, indicating usable battery strength. In the case of a  
dead or low battery, the LED will either not go on at all or will stay on  
continuously, indicating that the battery should be replaced with a fresh one.  
To preserve battery life, turn the transmitter off when not in use.  
(8)  
Transmitter Set-Up  
(4)  
After completing the  
above steps, proceed  
to instructions fo r  
operating the Nady  
transmitter included  
with your system.  
(7)  
3. The microphone is now ready to use. The TX LED (4) on the 151 VR  
receiver should now be lit, indicating a received signal from the transmitter.  
When ready to speak, slide the transmitter switch to the ON position.  
Receiver Volume Control Adjust  
Turn volume control on the 151 VR receiver clockwise to near full gain.  
Wearing a monitor headset plugged into the receiver's headset jack, speak  
into the lavalier microphone. Adjust the receiver's volume to a comfortable  
listening level.  
(3)  
Note: Microphone elements 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 element at all times to  
protect it.  
(1)  
(on back)  
8
5
 
(Note: Microphone elements 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 element at all times to  
protect it.)  
WLT LAVALIER BODYPACK TRANSMITTER  
• OFF/STANDBY/ON switch allows convenient audio muting with the  
transmitter “ON”  
• Low battery LED indicator flashes once for unit “ON”; lights steady for low  
battery alert  
(17)  
• Locking 3.5mm mini-jack provides secure connection for removable  
microphone or instrument cable  
Audio Input  
Level Control  
• Easily accessible input level adjust control for optimum sound  
(12)  
(16)  
3.5 mm  
Operating Instructions  
Locking Jack  
Battery Indicator LED  
1. Snap open the BATTERY COMPARTMENT (10) and insert a fresh 9V  
BATTERY (11), observing the correct polarity. Close the compartment.  
(14)  
(15)  
Headworn  
Microphone  
OFF/STANDBY/  
ON Switch  
2. The WLT is provided with a 3.5 mm LOCKING JACK (12) for connecting  
the microphone. Plug in either the LAVALIER/LAPEL (13) or the  
HEADWORN MICROPHONE (14), as supplied. To secure the connection,  
turn the metal slip ring on the plug clockwise to thread it on to the jack. To  
unplug, reverse the process. Slip the transmitter into a pocket or clip on to  
your clothes. To use the lavalier mic, attach it at chest level. Do not place  
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 mic boom so  
that the mic is about one inch to the side of the front of the mouth.  
(Note: The lavalier or headworn mic wire is also the transmit antenna, and rolling up or  
shortening the wire may reduce the effective operating range. Extend the wire fully during use,  
and keep it as straight as possible.)  
(13)  
Lavalier/Lapel  
3. Turn on the WLT by sliding the OFF/STANDBY/ON SWITCH (15) to the  
STANDBY position (transmitter on, audio muted) or the ON position  
(transmitter and audio both on). The BATTERY INDICATOR LED (16) 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 will stay on  
continuously, indicating that the battery should be replaced with a fresh  
one.  
(10)  
Battery  
Compartment  
4. The microphone is now ready to use. The TX LED INDICATOR (4) on  
the 151 VR receiver should now be lit, indicating a received signal from the  
transmitter. When ready to speak, slide the transmitter switch to the ON  
position and adjust the volume of the receiver as per instructions on page  
5. Re-position the microphone farther from the source or adjust the AUDIO  
INPUT LEVEL CONTROL (17) if the monitored volume is to loud or  
distorted afer adjusting the receiver as per instructions on page 5.  
(11)  
Opening Battery Compartment  
9V Alkaline Battery  
7
6
 

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