SEIKAKU TECHNICAL GROUP PEM-500T Wireless Microphone User Manual NMCQV 521 UH5000

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CONTENTS
PEM-500R Receiver
CONTENTS..............................................................................2
INTRODUCTION ......................................................................3
WARNING ..............................................................................4
SYSTEM FEATURES ..................................................................5
OPERATION ............................................................................6
PEM-500T TRANSMITTER ........................................................6
Maximum Audio Output Level
Minimum Audio
Output Load Impedance
RF Sensitivity
Squelch Threshold
Spurious Rejection
Audio Output Connector
Controls
PEM-500R RECEIVER..............................................................10
SPECIFICATIONS ....................................................................14
SERVICE ................................................................................15
Indicators
Power Requirements
Current Drain
Battery Life
Antenna
Dimensions
Weight
20 mW
16 Ω
2.5uV (-100 dB/12 dB SINAD)
< -90 dB
> 55 dBc
3.5 mm Stereo (Tip=left, Ring=Right,
Sleeve=ground)
Volume adjust; limiter ON/OFF, power
ON/OFF, STEREO/MONO select switches;
16-position channel selector switch
Two-color (red/green) 3-way unit
ON/Signal/Low Battery LED
9V alkaline battery
< 40 mA
Up to 6 hours, volume dependent
Internal
4.2" x 0.9" x 2.6" (106 x 23 x 66 mm)
2.85 oz (80 Kg)
SERVICE
(U.S.) Should your Nady PEM-500 Wireless Personal In-Ear Monitor System require
service, please contact the Nady Service Department via telephone at (510) 6522411 or e-mail to service@nadywireless.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 that you send in 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 service information. Keep it in a safe place for possible future
reference. Do not attempt to service 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.
15
SPECIFICATIONS
Operating Frequency Range
Modulation
Audio Frequency Response
T. H. D.
Signal-to-Noise Ratio
Operating Range
696-865 MHz, country dependent
Mono or stereo (MPX with pilot tone), FM: F3E
+/- 60 KHz, nominal
50 ~ 12,000 Hz
< 1%
> 80 dB, with proprietary companding noise
reduction
Up to 300 feet typical (depending on site
conditions)
PEM-500T Transmitter
RF Output Power
L/R Audio Line Inputs
Input impedance
Nominal Input Level
Max. Input Level
Headphones Out Power
Spurious Emission
Frequency Stability
Controls
Connectors
Indicators
Antenna
Power Requirement
Dimensions
Weight
14
INTRODUCTION
Thank you for purchasing a Nady PEM-500 Wireless Personal In-Ear Monitor
System and congratulations on your choice. This system offers all of the advantages
of wireless in-ear monitoring–mobility, more focused audio, freedom from feedback,
and elimination of transport issues associated with conventional floor monitors–as
well as the longterm health benefits of safe listening levels. For the first time, a
wireless in-ear monitor system combines state-of-the-art advanced frequency-agile
PLL synthesized UHF technology, high-end performance, ease of use, and
unprecedented affordability. The PEM-500 offers a choice of 16 user selectable UHF
channels in both the transmitter and receiver(s), as well as stereo (MPX system) or
mono mode transmission. This system is indispensable for live-stage music
performance, and is loaded with features previously found only in units costing
several times more.
Max. 50 mW (country dependent)
600 Ω
0 dBm
+6 dBm
100 mW max. @ 32 Ω,
190 mW @ 16 Ω
> -55 dBc
+/- 100 PPM
Power ON/OFF, STEREO/MONO, and
channel select switches; input level,
headphones monitor volume controls
1/4" stereo headphones monitor out, 1/4"
TRS balanced mic input, balanced XLR L& R
line input, and 2.1 mm barrel-type DC input
jacks; BNC antenna socket
Power ON LED; channel and 10-segment L/R
audio input LED displays
1/4 wave rigid detachable, BNC mount
12-15V/ 500mA, AC/DC adapter supplied
(UL/CSA approved 120VAC or CE approved
230VAC)
8.27" x 9.13" x 1.73" (210 x 232 x 44 mm)
2.98 lbs (1.35 Kg)
USING THIS MANUAL
This booklet gives instructions for the operation of the PEM-500 Wireless In-Ear
Monitor System. Please read the instructions for your system completely before
operating unit. This manual first lists the features of the PEM-500, and then takes
you step-by-step in explaining how to operate your new system, both transmitter
and receiver. Each section gives you detailed operating instructions. Also included in
this manual are system specifications and servicing information.
WARNING
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT
HEARING DAMAGE. ALWAYS USE AS LOW A VOLUME AS POSSIBLE.
The Occupational Safety Health Administration (OSHA) has established the
following guidelines for maximum time exposure to sound pressure levels (SPL)
before hearing damage occurs:
90 dB SPL @ 8 hours
95 dB SPL @ 4 hours
100 dB SPL @ 2 hours
105 dB SPL @ 1 hour
110 dB SPL @ 1/2 hour
115 dB SPL @ 15 minutes
Aviod exposure to 120 dB or greater
SPL or irreversible ear damage may result.
(Note: It is difficult to measure the SPL present at the eardrum in live sound
applications. The volume present will be affected by the level setting of your PEM500R, the ambient stage sound from your other instruments and speakers, and the
quality of and fit of your in-ear speakers.)
Always avoid prolonged listening at excessive sound pressure levels. Use the
following guidelines to use this system safely:
1.Turn up the volume to your earphones only enough to hear properly. The PEM500 can provide a high quality monitor mix at significantly lower decibel
levels than floor monitors. Whenever possible, use the system with the limiter
in the PEM-500R receiver ON.
2. Just as with any in-ear monitor system, The PEM-500 works best when used
exclusively by all performers on stage (without any wedges or side monitors).
The high sound pressure levels produced by floor monitors (especially if the
band plays loud) can bleed through the in-ear monitor earbuds and, in the
worst cases, hinder their effectiveness. Experiment with your overall mix to get
the maximum benefit from your PEM-500.
3. Turn down the volume immediately if you experience any pain or hearing
discomfort or ringing in the ears after use.
4. Have an audiologist check your hearing and ears regularly. If you experience
any wax buildup in your ears, do not use the system until an audiologist
examines your ears.
5. Wipe the earphones with an antiseptic before and after use to avoid
infection. Stop using the earphones if they cause discomfort or infection.
An equilateral triangle enclosing an exclamation point
is intended to alert the user to the presence of important
operating and service instructions in the literature
enclosed with this unit.
24
28
20
21
27
24
23
29
22
18
18
19
18
26
25
13
6. Attaching the Receiver
The PEM-500R can be slipped into a pocket or clipped onto clothes or a belt with
the BELT CLIP (27). Note that for utmost versatility and convenience, this clip can be
rotated 90˚ for attaching receiver either vertically or horizontally on clothes or belt
as desired. To rotate clip, loosen the Phillips screw holding the clip, change the
position as needed, and retighten the screw to secure the clip.
7. Adjusting Ear Monitor Volume
After the PEM-500T transmitter has been adjusted to optimum volume and Stereo or
Mono reception is selected simultaneously on both the transmitter and receiver as
per the preceding instructions, the received volume can be adjusted as desired.
Select the volume with the thumbwheel VOLUME CONTROL (28). As per the
preceding WARNING section, turn up the VOLUME CONTROL only far enough to
hear properly. For longterm ear safety, it is highly recommended that you always
select the volume limiting provided by the LIMITER ON/OFF SWITCH (29) in the
BATTERY COMPARTMENT.
(Note: Ringing in the ears after use indicates the gain levels you have selected may
be too high. Either select LIMITER ON or turn down the VOLUME CONTROL. You
may also need to lower the overall volume of the band instruments and amplifiers to
enable more comfortable and safer listening levels. See the WARNING section,
pg.4)
8. Testing Receiver Range
Wearing your receiver and earphones, walk around the stage area and listen for
audio quality. Depending on room size, obstructions, amount of reflective metal
surfaces, and other conditions that may affect RF transmission, it is normal that the
audio may disappear or "drop out" in certain locations. Such zones, otherwise
known as "null spots" are very small and fixed in location if you are within 100 feet
of the transmitter, and will become larger as you approach the ultimate range of
your system in that location (up to 300 or so feet, depending on site conditions).
Generally, it is possible to eliminate such "null spots" by moving your PEM-500T
transmitter as little as 12-18 inches in any direction. If that is not convenient (e.g.,
because the PEM-500T is rackmounted), you can also use an optional remote
antenna. Contact the NADY SYSTEMS Service Department (see pg.15) for
information about remote antennas for the PEM-500T. After you move the
transmitter or relocate a remote antenna, range walk the stage and other areas you
will use in your performance to again check for consistent reception. You are now
ready to use the PEM-500 system for wireless personal in-ear monitoring.
(Note: Due to the strong transmission power of the PEM-500T, you may experience
compromised audio or static if the PEM-500R is too close to the antenna of the
PEM-500T transmitter. Always operate the receiver at least 6 ft (2 m) away from the
transmitter antenna.)
12
SYSTEM FEATURES
• Available on selected frequency bands within the UHF band for interferencefree, long-range performance (up to 8 systems can be operated
simultaneously, depending on country and frequency band)
• System consists of PEM-500T transmitter and one bodypack PEM-500R
receiver, both of which offer 16 channel user selectability. Any number of
additional receivers can also be operated with the same transmitter if they are
all set to the same channel.
• Proprietary companding circuitry for wide Dynamic Range and clear, natural
sound
• Operating Range: Up to 300 feet typical (depending on site conditions)
• Rugged, foam-padded traveling case provides easy, safe transport and
storage
PEM-500T Transmitter
• Rugged, all metal half-rack that can be rackmounted singly or side-by-side
with optional rack kits
• Microphone input allows wireless cueing of performers on stage
• Front panel features input level control, stereo headphone monitor output jack
and volume control, select button for choosing one of 16 UHF channels, LED
channel display, and Left/Right 10-segment audio input level displays.
• Back panel provides BNC jack for the detachable antenna, a Stereo/Mono
select switch, a 1/4" TRS balanced microphone input, and XLR jacks for Left
and Right Line inputs.
• Externally powered by AC/DC power adapter
PEM-500R Receiver
• Portable bodypack receiver features a power switch, switchable built-in volume
limiter, output level control, stereo/mono select switch, and two-color
(red/green) 3-way unit ON/Signal/Low Battery LED indicator.
• Operates up to 6 hours (depending on volume) on a 9V alkaline battery
• Each receiver is supplied with a pair of miniature, lightweight (yet powerful)
in-ear speakers with soft rubber mounts in 3 sizes (small, medium, and large)
designed for "custom" form-fitted comfort and optimum acoustic transfer and
isolation.
• Rear clip can be rotated 90˚ for attaching receiver either vertically or
horizontally to clothes.
OPERATION
PEM-500T TRANSMITTER
1. Rackmounting the transmitter
The PEM-500T requires no installation and can be used on any flat surface.
However, in some applications rack mounting is preferred. There are 2 options
available for rackmounting the PEM-500T transmitter: singly or side-by-side with
another PEM-500T transmitter.
• Single mounting: The PEM-500T is supplied with RE-5 RACK EARS (1) which
can be attached with the screws provided on the front of the side panels to
enable rackmounting the receiver.
• Side-by-side dual mounting: Two PEM-500T transmitters can be rackmounted
side-by-side using the optional RKT-25 RACK KIT TRAY (2) which holds 2
transmitters.
(Note: Do not mount the transmitter(s) in a rack directly above an amplifier or other
source of high heat–this could degrade the performance of the PEM-500T. Always
ensure adequate airflow and heat dissipation in any rack configuration.)
2. Powering the Transmitter
Plug the 12V AC/DC ADAPTER (3) provided into the DC INPUT JACK (4) on the
back of the receiver. Then plug the power supply into an AC outlet.
(Note: Any 12-15V DC source with 500mA capability can also be used.) Press the
POWER SWITCH (5) once to turn on the transmitter. The POWER ON LED (6) will
now light and the transmitter is operational.
3. Antenna
Connect the front panel TELESCOPIC ANTENNA (7) or optional remote antenna to
the ANTENNA JACK (8). Extend the antenna fully to obtain maximum range.
Optimal antenna position is vertical. For maximum range, it is always best to
maintain a line of sight (no obstructions) between the transmitter antenna and the
receiver(s) at all times whenever possible.
4. Selecting Stereo or Mono Mode Reception
Switch the STEREO/MONO CONTROL (23) in the BATTERY COMPARTMENT to
stereo or mono reception to match the transmission mode already selected for the
transmitter, as per the Connecting the Audio Input section of the PEM-500T
transmitter instructions above. You can also try different combinations for different
applications. For example, if multiple PEM-500R receivers are being used with one
PEM-500T transmitting in stereo, the different performers may select either a stereo
mix with the STEREO/MONO CONTROL (which may feature vocals on one side and
the rest of the mix on the other), or a mono mix (with the vocals and music mixed
together). Such capability adds to the versatility of the system by allowing more
personal control of the individual sound received by different performers all listening
to the same transmitted mix.
5. Connecting the In-Ear Monitor Speakers
The PEM-500R is provided with a 3.5 mm TRS STEREO EARPHONE MINI JACK (24)
for connecting the EARBUD SPEAKERS (25) supplied. These miniature in-ear
speakers can be inserted in the ear with the foam screens supplied as standard
portable sound system earphones. For better isolation from ambient stage sounds
and a more secure fit, 3 sets of soft "form-fit" RUBBER IN-EAR MOUNTS (26) are
provided to fit all sizes (small, medium and large). Select the size that best fits in
your ears most comfortably. Remove the foam screen from the earphones and slip
the RUBBER MOUNTS over each speaker. Insert the MOUNTS (with speakers), one
in each ear.
(Note: Wipe the earphones and rubber mounts with an antiseptic before and after
each use to avoid infection. Stop using the earphones if they are causing discomfort
or infection.)
[Note: For best results and sound, a pair of custom-fitted ear transducers, supplied
with soft rubber mounts cast by an audiologist from your own ear cavity, are
recommended. Although expensive, these earphones will provide the most natural,
full frequency response, best acoustic isolation and longest-term wearing comfort.
Such units can be ordered from suppliers such as Sensaphonics
(www.sensaphonics.com) and Ultimate Ears (www.ultimateears.com). Contact one of
these suppliers directly for more information on their custom earphones.]
11
OPERATION
PEM-500R RECEIVER
1. Multiple Monitor Mixes
Any number of PEM-500R receivers can be used with a single PEM-500T transmitter
set to the same channel. Although there are individual controls on each receiver
allowing different levels of volume, each receiver will receive the same transmitted
monitor mix (see Selecting Stereo or Mono Mode Reception below for exceptions).
If different mixes are required for the different performers, additional PEM-500T
transmitters and receivers set to other channels must also be used, and each
transmitter must be fed a different mix from the console as desired.
(Note: Never set more than ONE transmitter to the same operating frequency.)
2. Powering the Receiver(s)
Slide down and flip open the BATTERY COMPARTMENT (18) and insert a fresh 9V
BATTERY (19), observing the correct polarity. Turn on the receiver with the POWER
SWITCH (20). If the battery has usable strength, the 2 color UNIT ON/SIGNAL/
LOW BATTERY LED (21) will glow red if the transmitter is OFF and green if it is on
and tuned to the same channel as the receiver. The battery should last up to 6
hours, depending on the music content and volume, but it is recommended that it be
changed every 3-4 hours if possible. If the battery is too weak for operation, the
LED will not light at all or flash alternate green/red if the transmitter is turned on,
and on the same channel, or flash red if the transmitter is turned off. If this occurs
during use, immediately change the battery to ensure optimum continuing
performance.
3. Selecting the Channel
Inside the open BATTERY COMPARTMENT, use a small screwdriver and adjust the
CHANNEL SELECTOR CONTROL (22) to the same channel as selected above for the
transmitter with which you will use this receiver. The UNIT ON/SIGNAL/LOW
BATTERY LED will change from red to green when the same channel is selected,
indicating reception of the signal from the associated PEM-500T transmitter.
10
4. Connecting the Audio Input
The PEM-500T transmitter features a 1/4" TRS balanced MIC INPUT (9) and a line
level balanced XLR jack for the LEFT and RIGHT LINE INPUTS (10). The MIC INPUT
allows the use of a microphone alone for easy cueing of performers while on stage,
which can be useful in many applications. It can be used even with input signals
also connected to the LINE INPUTS. Select the input jack appropriate for the
signal(s) you are feeding to the transmitter:
A. For a microphone input, plug a balanced 1/4" TRS or an unbalanced 1/4"
TS cable from a dynamic microphone into the MIC INPUT.
B. Stereo monitor mixes from your console can be connected to the LEFT and
RIGHT LINE INPUTS with balanced XLR connectors. Mono monitor mixes can
also be input in this manner. Select STEREO for stereo inputs and MONO for
mono inputs, as appropriate, with the STEREO/MONO SWITCH (11). Mono
signals are transmitted on both the left and right channels equally with the
volume adjustable by the AUDIO LEVEL CONTROL (12). The gain of stereo
signals can be further adjusted separately (L/R) by the console monitor feed.
With the STEREO/MONO SWITCH set to MONO, a stereo input signal will
be transmitted as mono. If the switch is set to STEREO, a mono signal will still
be transmitted as mono. If a signal is input only to one of either the left or
right LINE INPUTS and the switch is set to STEREO, it will only be transmitted
on that side. However, if the switch is then set to MONO, it will be
transmitted on both sides as a MONO signal. See also Selecting Stereo or
Mono Operation in the PEM-500R Receiver section.
(Note: As when making any connection, make sure that the PEM-500T AUDIO
LEVEL CONTROL and the console output levels are set at minimum volume before
plugging into the transmitter. This will avoid possible loud transients in the PEM500R receiver if it is already turned on, and with earphones plugged into the
user’s ears.)
5. Selecting a Channel/ Multiple System Operation
Both the PEM-500T transmitter and PEM-500R receiver offer a choice of 16
channels in the UHF band. Select an open frequency that doesn't interfere with any
other PEM-500 or UHF wireless mic system you are also using by pushing the
CHANNEL SELECT BUTTON (13) on the front panel of the PEM-500T until the
channel you want is displayed on the CHANNEL LED DISPLAY (14). You will also
need to select the same channel for the transmitter (see Transmitter Operation
instructions above). If different mixes are required for the different performers,
additional PEM-500T transmitters and receivers set to other channels must also be
used, and each transmitter must be fed a different mix from the console as desired.
Depending on the band(s) you are using and open channel availability within the
band(s), up to 8 PEM-500 systems on different frequencies can be operated
simultaneously to provide multiple discrete mixes to the performers.
(Note: Never set more than ONE transmitter to the same operating frequency)
[Note: After selecting a frequency on the transmitter, you must also check with the
receiver to ensure that the chosen channel is open (i.e., no other transmissions from
other sources, such as UHF TV channels in your area, operating at the same
frequency). Turn off the PEM-500T transmitter, and monitor the signal from the PEM500R (see PEM-500R instructions, pg. 10). It should be silent. For optimum
operation and range, if you receive any transmissions or static you must choose
another channel that is clear.]
[Note: If, after you complete the set-up, you experience interference or
unsatisfactory audio performance, change the channel until the problem goes away.
In the extremely rare circumstance that such a problem persists, turn off all UHF
wireless mics being used or move their receivers physically away from the PEM500T transmitter. In some instances, UHF wireless mics and the PEM-500 system can
interact if they are too close in frequency. Contact the NADY SYSTEMS Service
Department for further information if necessary (see SERVICE, pg.15)]
6. Adjusting Levels
Adjust the selected audio input level for optimum level for transmission with the
LEVEL CONTROL (12). Adjust the control so that the top LEDs on the 10-segment Left
and Right LED LEVEL DISPLAYS (15) light intermittently only on loud peaks. This
control adjusts both the left and right signals simultaneously in the same manner. For
added control and separate levels on stereo inputs, use the left and right stereo
monitor output level control on your console providing the signal.
12
15
10
14
11
13
17 16
7.Headphone Monitoring
The sound technician can monitor the signal being transmitted with a wired pair of
headphones via the stereo 1/4" TRS MONITOR OUTPUT JACK (16). The volume
can be adjusted as desired with the HEADPHONES VOLUME CONTROL (17). Both
the left and right channels of a stereo signal are adjusted simultaneously by this
control in the same manner.
5. Selecting a Channel/ Multiple System Operation
Both the PEM-500T transmitter and PEM-500R receiver offer a choice of 16
channels in the UHF band. Select an open frequency that doesn't interfere with any
other PEM-500 or UHF wireless mic system you are also using by pushing the
CHANNEL SELECT BUTTON (13) on the front panel of the PEM-500T until the
channel you want is displayed on the CHANNEL LED DISPLAY (14). You will also
need to select the same channel for the transmitter (see Transmitter Operation
instructions above). If different mixes are required for the different performers,
additional PEM-500T transmitters and receivers set to other channels must also be
used, and each transmitter must be fed a different mix from the console as desired.
Depending on the band(s) you are using and open channel availability within the
band(s), up to 8 PEM-500 systems on different frequencies can be operated
simultaneously to provide multiple discrete mixes to the performers.
(Note: Never set more than ONE transmitter to the same operating frequency)
[Note: After selecting a frequency on the transmitter, you must also check with the
receiver to ensure that the chosen channel is open (i.e., no other transmissions from
other sources, such as UHF TV channels in your area, operating at the same
frequency). Turn off the PEM-500T transmitter, and monitor the signal from the PEM500R (see PEM-500R instructions, pg. 10). It should be silent. For optimum
operation and range, if you receive any transmissions or static you must choose
another channel that is clear.]
[Note: If, after you complete the set-up, you experience interference or
unsatisfactory audio performance, change the channel until the problem goes away.
In the extremely rare circumstance that such a problem persists, turn off all UHF
wireless mics being used or move their receivers physically away from the PEM500T transmitter. In some instances, UHF wireless mics and the PEM-500 system can
interact if they are too close in frequency. Contact the NADY SYSTEMS Service
Department for further information if necessary (see SERVICE, pg.15)]
6. Adjusting Levels
Adjust the selected audio input level for optimum level for transmission with the
LEVEL CONTROL (12). Adjust the control so that the top LEDs on the 10-segment Left
and Right LED LEVEL DISPLAYS (15) light intermittently only on loud peaks. This
control adjusts both the left and right signals simultaneously in the same manner. For
added control and separate levels on stereo inputs, use the left and right stereo
monitor output level control on your console providing the signal.
12
15
10
14
11
13
17 16
7.Headphone Monitoring
The sound technician can monitor the signal being transmitted with a wired pair of
headphones via the stereo 1/4" TRS MONITOR OUTPUT JACK (16). The volume
can be adjusted as desired with the HEADPHONES VOLUME CONTROL (17). Both
the left and right channels of a stereo signal are adjusted simultaneously by this
control in the same manner.
OPERATION
PEM-500R RECEIVER
1. Multiple Monitor Mixes
Any number of PEM-500R receivers can be used with a single PEM-500T transmitter
set to the same channel. Although there are individual controls on each receiver
allowing different levels of volume, each receiver will receive the same transmitted
monitor mix (see Selecting Stereo or Mono Mode Reception below for exceptions).
If different mixes are required for the different performers, additional PEM-500T
transmitters and receivers set to other channels must also be used, and each
transmitter must be fed a different mix from the console as desired.
(Note: Never set more than ONE transmitter to the same operating frequency.)
2. Powering the Receiver(s)
Slide down and flip open the BATTERY COMPARTMENT (18) and insert a fresh 9V
BATTERY (19), observing the correct polarity. Turn on the receiver with the POWER
SWITCH (20). If the battery has usable strength, the 2 color UNIT ON/SIGNAL/
LOW BATTERY LED (21) will glow red if the transmitter is OFF and green if it is on
and tuned to the same channel as the receiver. The battery should last up to 6
hours, depending on the music content and volume, but it is recommended that it be
changed every 3-4 hours if possible. If the battery is too weak for operation, the
LED will not light at all or flash alternate green/red if the transmitter is turned on,
and on the same channel, or flash red if the transmitter is turned off. If this occurs
during use, immediately change the battery to ensure optimum continuing
performance.
3. Selecting the Channel
Inside the open BATTERY COMPARTMENT, use a small screwdriver and adjust the
CHANNEL SELECTOR CONTROL (22) to the same channel as selected above for the
transmitter with which you will use this receiver. The UNIT ON/SIGNAL/LOW
BATTERY LED will change from red to green when the same channel is selected,
indicating reception of the signal from the associated PEM-500T transmitter.
10
4. Connecting the Audio Input
The PEM-500T transmitter features a 1/4" TRS balanced MIC INPUT (9) and a line
level balanced XLR jack for the LEFT and RIGHT LINE INPUTS (10). The MIC INPUT
allows the use of a microphone alone for easy cueing of performers while on stage,
which can be useful in many applications. It can be used even with input signals
also connected to the LINE INPUTS. Select the input jack appropriate for the
signal(s) you are feeding to the transmitter:
A. For a microphone input, plug a balanced 1/4" TRS or an unbalanced 1/4"
TS cable from a dynamic microphone into the MIC INPUT.
B. Stereo monitor mixes from your console can be connected to the LEFT and
RIGHT LINE INPUTS with balanced XLR connectors. Mono monitor mixes can
also be input in this manner. Select STEREO for stereo inputs and MONO for
mono inputs, as appropriate, with the STEREO/MONO SWITCH (11). Mono
signals are transmitted on both the left and right channels equally with the
volume adjustable by the AUDIO LEVEL CONTROL (12). The gain of stereo
signals can be further adjusted separately (L/R) by the console monitor feed.
With the STEREO/MONO SWITCH set to MONO, a stereo input signal will
be transmitted as mono. If the switch is set to STEREO, a mono signal will still
be transmitted as mono. If a signal is input only to one of either the left or
right LINE INPUTS and the switch is set to STEREO, it will only be transmitted
on that side. However, if the switch is then set to MONO, it will be
transmitted on both sides as a MONO signal. See also Selecting Stereo or
Mono Operation in the PEM-500R Receiver section.
(Note: As when making any connection, make sure that the PEM-500T AUDIO
LEVEL CONTROL and the console output levels are set at minimum volume before
plugging into the transmitter. This will avoid possible loud transients in the PEM500R receiver if it is already turned on, and with earphones plugged into the
user’s ears.)
OPERATION
PEM-500T TRANSMITTER
1. Rackmounting the transmitter
The PEM-500T requires no installation and can be used on any flat surface.
However, in some applications rack mounting is preferred. There are 2 options
available for rackmounting the PEM-500T transmitter: singly or side-by-side with
another PEM-500T transmitter.
• Single mounting: The PEM-500T is supplied with RE-5 RACK EARS (1) which
can be attached with the screws provided on the front of the side panels to
enable rackmounting the receiver.
• Side-by-side dual mounting: Two PEM-500T transmitters can be rackmounted
side-by-side using the optional RKT-25 RACK KIT TRAY (2) which holds 2
transmitters.
(Note: Do not mount the transmitter(s) in a rack directly above an amplifier or other
source of high heat–this could degrade the performance of the PEM-500T. Always
ensure adequate airflow and heat dissipation in any rack configuration.)
2. Powering the Transmitter
Plug the 12V AC/DC ADAPTER (3) provided into the DC INPUT JACK (4) on the
back of the receiver. Then plug the power supply into an AC outlet.
(Note: Any 12-15V DC source with 500mA capability can also be used.) Press the
POWER SWITCH (5) once to turn on the transmitter. The POWER ON LED (6) will
now light and the transmitter is operational.
3. Antenna
Connect the front panel TELESCOPIC ANTENNA (7) or optional remote antenna to
the ANTENNA JACK (8). Extend the antenna fully to obtain maximum range.
Optimal antenna position is vertical. For maximum range, it is always best to
maintain a line of sight (no obstructions) between the transmitter antenna and the
receiver(s) at all times whenever possible.
4. Selecting Stereo or Mono Mode Reception
Switch the STEREO/MONO CONTROL (23) in the BATTERY COMPARTMENT to
stereo or mono reception to match the transmission mode already selected for the
transmitter, as per the Connecting the Audio Input section of the PEM-500T
transmitter instructions above. You can also try different combinations for different
applications. For example, if multiple PEM-500R receivers are being used with one
PEM-500T transmitting in stereo, the different performers may select either a stereo
mix with the STEREO/MONO CONTROL (which may feature vocals on one side and
the rest of the mix on the other), or a mono mix (with the vocals and music mixed
together). Such capability adds to the versatility of the system by allowing more
personal control of the individual sound received by different performers all listening
to the same transmitted mix.
5. Connecting the In-Ear Monitor Speakers
The PEM-500R is provided with a 3.5 mm TRS STEREO EARPHONE MINI JACK (24)
for connecting the EARBUD SPEAKERS (25) supplied. These miniature in-ear
speakers can be inserted in the ear with the foam screens supplied as standard
portable sound system earphones. For better isolation from ambient stage sounds
and a more secure fit, 3 sets of soft "form-fit" RUBBER IN-EAR MOUNTS (26) are
provided to fit all sizes (small, medium and large). Select the size that best fits in
your ears most comfortably. Remove the foam screen from the earphones and slip
the RUBBER MOUNTS over each speaker. Insert the MOUNTS (with speakers), one
in each ear.
(Note: Wipe the earphones and rubber mounts with an antiseptic before and after
each use to avoid infection. Stop using the earphones if they are causing discomfort
or infection.)
[Note: For best results and sound, a pair of custom-fitted ear transducers, supplied
with soft rubber mounts cast by an audiologist from your own ear cavity, are
recommended. Although expensive, these earphones will provide the most natural,
full frequency response, best acoustic isolation and longest-term wearing comfort.
Such units can be ordered from suppliers such as Sensaphonics
(www.sensaphonics.com) and Ultimate Ears (www.ultimateears.com). Contact one of
these suppliers directly for more information on their custom earphones.]
11
6. Attaching the Receiver
The PEM-500R can be slipped into a pocket or clipped onto clothes or a belt with
the BELT CLIP (27). Note that for utmost versatility and convenience, this clip can be
rotated 90˚ for attaching receiver either vertically or horizontally on clothes or belt
as desired. To rotate clip, loosen the Phillips screw holding the clip, change the
position as needed, and retighten the screw to secure the clip.
7. Adjusting Ear Monitor Volume
After the PEM-500T transmitter has been adjusted to optimum volume and Stereo or
Mono reception is selected simultaneously on both the transmitter and receiver as
per the preceding instructions, the received volume can be adjusted as desired.
Select the volume with the thumbwheel VOLUME CONTROL (28). As per the
preceding WARNING section, turn up the VOLUME CONTROL only far enough to
hear properly. For longterm ear safety, it is highly recommended that you always
select the volume limiting provided by the LIMITER ON/OFF SWITCH (29) in the
BATTERY COMPARTMENT.
(Note: Ringing in the ears after use indicates the gain levels you have selected may
be too high. Either select LIMITER ON or turn down the VOLUME CONTROL. You
may also need to lower the overall volume of the band instruments and amplifiers to
enable more comfortable and safer listening levels. See the WARNING section,
pg.4)
8. Testing Receiver Range
Wearing your receiver and earphones, walk around the stage area and listen for
audio quality. Depending on room size, obstructions, amount of reflective metal
surfaces, and other conditions that may affect RF transmission, it is normal that the
audio may disappear or "drop out" in certain locations. Such zones, otherwise
known as "null spots" are very small and fixed in location if you are within 100 feet
of the transmitter, and will become larger as you approach the ultimate range of
your system in that location (up to 300 or so feet, depending on site conditions).
Generally, it is possible to eliminate such "null spots" by moving your PEM-500T
transmitter as little as 12-18 inches in any direction. If that is not convenient (e.g.,
because the PEM-500T is rackmounted), you can also use an optional remote
antenna. Contact the NADY SYSTEMS Service Department (see pg.15) for
information about remote antennas for the PEM-500T. After you move the
transmitter or relocate a remote antenna, range walk the stage and other areas you
will use in your performance to again check for consistent reception. You are now
ready to use the PEM-500 system for wireless personal in-ear monitoring.
(Note: Due to the strong transmission power of the PEM-500T, you may experience
compromised audio or static if the PEM-500R is too close to the antenna of the
PEM-500T transmitter. Always operate the receiver at least 6 ft (2 m) away from the
transmitter antenna.)
12
SYSTEM FEATURES
• Available on selected frequency bands within the UHF band for interferencefree, long-range performance (up to 8 systems can be operated
simultaneously, depending on country and frequency band)
• System consists of PEM-500T transmitter and one bodypack PEM-500R
receiver, both of which offer 16 channel user selectability. Any number of
additional receivers can also be operated with the same transmitter if they are
all set to the same channel.
• Proprietary companding circuitry for wide Dynamic Range and clear, natural
sound
• Operating Range: Up to 300 feet typical (depending on site conditions)
• Rugged, foam-padded traveling case provides easy, safe transport and
storage
PEM-500T Transmitter
• Rugged, all metal half-rack that can be rackmounted singly or side-by-side
with optional rack kits
• Microphone input allows wireless cueing of performers on stage
• Front panel features input level control, stereo headphone monitor output jack
and volume control, select button for choosing one of 16 UHF channels, LED
channel display, and Left/Right 10-segment audio input level displays.
• Back panel provides BNC jack for the detachable antenna, a Stereo/Mono
select switch, a 1/4" TRS balanced microphone input, and XLR jacks for Left
and Right Line inputs.
• Externally powered by AC/DC power adapter
PEM-500R Receiver
• Portable bodypack receiver features a power switch, switchable built-in volume
limiter, output level control, stereo/mono select switch, and two-color
(red/green) 3-way unit ON/Signal/Low Battery LED indicator.
• Operates up to 6 hours (depending on volume) on a 9V alkaline battery
• Each receiver is supplied with a pair of miniature, lightweight (yet powerful)
in-ear speakers with soft rubber mounts in 3 sizes (small, medium, and large)
designed for "custom" form-fitted comfort and optimum acoustic transfer and
isolation.
• Rear clip can be rotated 90˚ for attaching receiver either vertically or
horizontally to clothes.
WARNING
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT
HEARING DAMAGE. ALWAYS USE AS LOW A VOLUME AS POSSIBLE.
The Occupational Safety Health Administration (OSHA) has established the
following guidelines for maximum time exposure to sound pressure levels (SPL)
before hearing damage occurs:
90 dB SPL @ 8 hours
95 dB SPL @ 4 hours
100 dB SPL @ 2 hours
105 dB SPL @ 1 hour
110 dB SPL @ 1/2 hour
115 dB SPL @ 15 minutes
Aviod exposure to 120 dB or greater
SPL or irreversible ear damage may result.
(Note: It is difficult to measure the SPL present at the eardrum in live sound
applications. The volume present will be affected by the level setting of your PEM500R, the ambient stage sound from your other instruments and speakers, and the
quality of and fit of your in-ear speakers.)
Always avoid prolonged listening at excessive sound pressure levels. Use the
following guidelines to use this system safely:
1.Turn up the volume to your earphones only enough to hear properly. The PEM500 can provide a high quality monitor mix at significantly lower decibel
levels than floor monitors. Whenever possible, use the system with the limiter
in the PEM-500R receiver ON.
2. Just as with any in-ear monitor system, The PEM-500 works best when used
exclusively by all performers on stage (without any wedges or side monitors).
The high sound pressure levels produced by floor monitors (especially if the
band plays loud) can bleed through the in-ear monitor earbuds and, in the
worst cases, hinder their effectiveness. Experiment with your overall mix to get
the maximum benefit from your PEM-500.
3. Turn down the volume immediately if you experience any pain or hearing
discomfort or ringing in the ears after use.
4. Have an audiologist check your hearing and ears regularly. If you experience
any wax buildup in your ears, do not use the system until an audiologist
examines your ears.
5. Wipe the earphones with an antiseptic before and after use to avoid
infection. Stop using the earphones if they cause discomfort or infection.
An equilateral triangle enclosing an exclamation point
is intended to alert the user to the presence of important
operating and service instructions in the literature
enclosed with this unit.
24
28
20
21
27
24
23
29
22
18
18
19
18
26
25
13
SPECIFICATIONS
Operating Frequency Range
Modulation
Audio Frequency Response
T. H. D.
Signal-to-Noise Ratio
Operating Range
696-865 MHz, country dependent
Mono or stereo (MPX with pilot tone), FM: F3E
+/- 60 KHz, nominal
50 ~ 12,000 Hz
< 1%
> 80 dB, with proprietary companding noise
reduction
Up to 300 feet typical (depending on site
conditions)
PEM-500T Transmitter
RF Output Power
L/R Audio Line Inputs
Input impedance
Nominal Input Level
Max. Input Level
Headphones Out Power
Spurious Emission
Frequency Stability
Controls
Connectors
Indicators
Antenna
Power Requirement
Dimensions
Weight
14
INTRODUCTION
Thank you for purchasing a Nady PEM-500 Wireless Personal In-Ear Monitor
System and congratulations on your choice. This system offers all of the advantages
of wireless in-ear monitoring–mobility, more focused audio, freedom from feedback,
and elimination of transport issues associated with conventional floor monitors–as
well as the longterm health benefits of safe listening levels. For the first time, a
wireless in-ear monitor system combines state-of-the-art advanced frequency-agile
PLL synthesized UHF technology, high-end performance, ease of use, and
unprecedented affordability. The PEM-500 offers a choice of 16 user selectable UHF
channels in both the transmitter and receiver(s), as well as stereo (MPX system) or
mono mode transmission. This system is indispensable for live-stage music
performance, and is loaded with features previously found only in units costing
several times more.
Max. 50 mW (country dependent)
600 Ω
0 dBm
+6 dBm
100 mW max. @ 32 Ω,
190 mW @ 16 Ω
> -55 dBc
+/- 100 PPM
Power ON/OFF, STEREO/MONO, and
channel select switches; input level,
headphones monitor volume controls
1/4" stereo headphones monitor out, 1/4"
TRS balanced mic input, balanced XLR L& R
line input, and 2.1 mm barrel-type DC input
jacks; BNC antenna socket
Power ON LED; channel and 10-segment L/R
audio input LED displays
1/4 wave rigid detachable, BNC mount
12-15V/ 500mA, AC/DC adapter supplied
(UL/CSA approved 120VAC or CE approved
230VAC)
8.27" x 9.13" x 1.73" (210 x 232 x 44 mm)
2.98 lbs (1.35 Kg)
USING THIS MANUAL
This booklet gives instructions for the operation of the PEM-500 Wireless In-Ear
Monitor System. Please read the instructions for your system completely before
operating unit. This manual first lists the features of the PEM-500, and then takes
you step-by-step in explaining how to operate your new system, both transmitter
and receiver. Each section gives you detailed operating instructions. Also included in
this manual are system specifications and servicing information.
CONTENTS
PEM-500R Receiver
CONTENTS..............................................................................2
INTRODUCTION ......................................................................3
WARNING ..............................................................................4
SYSTEM FEATURES ..................................................................5
OPERATION ............................................................................6
PEM-500T TRANSMITTER ........................................................6
Maximum Audio Output Level
Minimum Audio
Output Load Impedance
RF Sensitivity
Squelch Threshold
Spurious Rejection
Audio Output Connector
Controls
PEM-500R RECEIVER..............................................................10
SPECIFICATIONS ....................................................................14
SERVICE ................................................................................15
Indicators
Power Requirements
Current Drain
Battery Life
Antenna
Dimensions
Weight
20 mW
16 Ω
2.5uV (-100 dB/12 dB SINAD)
< -90 dB
> 55 dBc
3.5 mm Stereo (Tip=left, Ring=Right,
Sleeve=ground)
Volume adjust; limiter ON/OFF, power
ON/OFF, STEREO/MONO select switches;
16-position channel selector switch
Two-color (red/green) 3-way unit
ON/Signal/Low Battery LED
9V alkaline battery
< 40 mA
Up to 6 hours, volume dependent
Internal
4.2" x 0.9" x 2.6" (106 x 23 x 66 mm)
2.85 oz (80 Kg)
SERVICE
(U.S.) Should your Nady PEM-500 Wireless Personal In-Ear Monitor System require
service, please contact the Nady Service Department via telephone at (510) 6522411 or e-mail to service@nadywireless.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 that you send in 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 service information. Keep it in a safe place for possible future
reference. Do not attempt to service 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.
15


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