RELACART WAM-400 Owner's manual

Digital & Wireless Automatic Mixer
Installation and Operation

Contents
Introduction……… ……………………… …………… ………… …………… …… ..P3
Receiver Installation and Connections……………………………………………………….P4
Installation……… …………… ……………………… …………… …………… …………… ……P4
Connections………………… ………………… ………………………… ………………………..P4
Wireless Automatic Mixer Controls and Functions……………………………………………P5
WAM-400 Front panel… … ……………… … ……………… … ………………… ………………P5
WAM-400 Rear panel………………… … … … …………………………… … … … … …………P6
Option for the wireless transmitters……… … ………………… … ………………… … ………P7
Wireless Boundary Microphone UB-200 …… … … … … … … …… … … … … … ……… … ….P7
Wireless Conferencing Microphone ED-3000………………………………………………P8
Wireless Handheld Microphone UH-200… ………… ………… ………… …………………….P9
Wireless Bodypack Transmitter UT-200……………………………………………………..P10
LCD Display………………………………………………………………………………………P11
Main Display…………………………………………………………………………………P11
Channel Display ……………………………… … … … … … ……………………………… ….P13
System Setup………………………………………………………………………………………P19
Main System Setup……………………………………………………………………………P1 9
Each Channel Setup………………………………………………………………………P20
Networking Multiple Mixers………… … …………………… … …………………… … ………P20
Optional Functions………………………………………………………………………………P21
Specifications…………………………………………………………………………P23
………… …
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Introduction
①UHF band 490 – 860MHz wireless automatic mixer for a maximum of four wireless microphones.
②Bright and easy-to-read LCD display shows RF/AF, level and other operation status.
③Automatic gain adjustment by microprocessor control.
④5-unit daisy chain by accessory link cable to control up to 20 units microphones.
⑤Select the simultaneous open microphones to 1 unit, 2 units, 3 units or 4 units.
⑥Set the Priority Microphone.
⑦Specific circuitry helps control feedback.
⑧Corresponding various kind of application in conference room due to priority-select function and gate-
hold time setting
⑨Last microphone on selectable for continuous room ambiance.
⑩Microphone hold time for 0.3s to 1.5s.
⑪everal inputs / outputs for audio signals:
wo RCA outputs to realize long distance with low noise transmission.
CA iput / output for recordings.
ne balanced line output (6.3mm jack ).
ne 3-pin XLR.
⑫Two RS-485 interface for external auto video tracking system or auto central control system.
⑬Cooperates with RELACART wireless boundary microphone UB-200, wireless conferncing
microphone ED-3000, handheld microphone UH-200 or lapel microphone UT-200.
⑭The WAM-400 wireless automatic mixer is ideal for meetings, seminars, teleconferencing, house of
worship services, broadcast and conference applications.
Receiver Installation and Connections
Installation:
①For better operation the receiver should be at least 3ft. (1m) above the ground and at least 3ft.
away from a wall or metal surface to minimize reflections.
②Attached a pair of UHF antennas to the antenna input jacks, the antenna are normally positioned
in the shape of a “V” (both 45°from vertical) for best reception.
③Keep antennas away from noise sources such as computer, digital equipment, motors,
automobiles and neon lights, as well as away from large metal objects.
④Keep open space between the receiver and transmitter for better reception.
⑤The transmitter should be at least 3ft. from the receiver.
Connections:
①The switching power supply is designed to operate properly from any AC power source 100-240V,
50/60Hz without user adjustment. Simply connect the receiver to a standard AC power outlet, using
only an IEC-type input cordset approved for the country use. Power to the unit is controlled by the
front panel power switch.
②There are two audio outputs on the rear panel: an XLR microphone output and a 1/4” (6.3mm)
phone jack instrument output. The two isolated audio outputs permit simultaneous feeds to two
different inputs. Use the appropriate shielded audio cable for connections between the receiver and
the input(s) of the mixer or other equipment.

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Wireless Automatic Mixer Controls and Functions
①Power Switch.
②CONTROL Knob: Rotate this knob to select function options and edit function choice.
③Infrared Data Transfer Window (SYNC): Transmit system data from the receiver to the
transmitter, From CH1 to CH4 can use this window.
④LCD Window: Liquid Crystal Display indicates control setting and operational readings.
⑤Channel Buttons: Press CH1 / CH2 / CH3 / CH4 button, in conjunction with the CONTROL
knob, to step through menus, select operating frequency and infrared data transfer.
Figure A: WAM-400 Front Panel Figure B: WAM-400 Rear Panel
①Antenna Input Jack: BNC type antenna connector for tuner ”B”, attached the antenna directly.
②RCA Audio Line Input: Can be connected to the input of mixer / MP3 / DVD.
③RCA Audio Line Output: Can be connected to the output of mixer / MP3 / DVD.
④Balanced Output Jack: XLR type connector. A standard 2 conductor shielded cable can be used to
connect the receiver output to a balanced microphone level input on a mixer or integrated amplifier.
⑤Unbalanced Output Jack: 1/4” (6.3mm) phone jack, can be connected to an aux-level input of a mixer,
guitar amp or tape recorder.
⑥Link In: Use a Relacart standard connecting cable to connect with the Link Out from another WAM-
400, can link up for 5 units WAM-400.
⑦Link Out: Use a Relacart standard connecting cable.
⑧RS-232 Jack: Can be connected to Automatic Video Tracking System VTS-1000 or the other control
systems.
⑨External Control: To connect with the control systems.
⑩DC Power Input: 12V / 700mA.
⑪Antenna Input Jack: BNC type antenna connector for tuner attached the antenna directly.

Option for the wireless transmitters
Wireless Boundary Microphone UB-200
①Power Button
a)Power Supply Button: Press power button in 3 seconds to turn on power and the indicator light turns into
green, 3 seconds to turn off the power.
b)Mute Button: Once the power is ON, press this button 1 second, it will be mute, and LCD screen display
“MUTE”, you will also find the indicator light turns into orange. Press 1 second more to eliminate “Mute”
function, letter “MUTE” disappear on the LCD screen, indicator light is back to green.
②LCD Window: Liquid crystal display indicates operational frequency / channel, mute, lock status and
battery condition. The transmitter's “fuel gauge” battery indicator displays a maximum of 4 bar segments.
When it leaves 1 bar segment, the batteries should be replaced immediately to ensure continued operation.
③Infrared Data Receiving Window (iR): Use to receive the data signal from the receiver.
④Battery Door Switch: Open the battery door by sliding the switch.
⑤Battery Compartment: Insert 2 fresh 1.5V AA batteries. (Alkaline type is recommended, always replace
both batteries.)
Warn: Observe correct polarity as marked inside the battery compartment to avoid damage to the internal
electric parts.
Wireless Conferencing Microphone ED-3000
①Power Button.
②LCD Window: Liquid crystal display indicates operational frequency and battery condition. The
transmitter's “fuel gauge” battery indicator displays a maximum of 4 bar segments. When it leaves 1 bar
segment, the batteries should be replaced immediately to ensure continued operation.
③Infrared Data Receiving Window (iR): Use to receive the channel data from the receiver
④Battery Cover: Unscrew it can reveal the battery compartment.
⑤Battery Compartment: Insert 2 fresh 1.5V AA batteries. (Alkaline type is recommended, always
replace both batteries.) Observe correct polarity as marked inside the battery compartment.

Wireless Handheld Microphone UH-200
① Microphone Head: The microphone head is separate to change other microphone head if needed.
②LCD Window: Liquid crystal display indicates operational frequency and battery condition. The
transmitter's “fuel gauge” battery indicator displays a maximum of 4 bar segments. When it leaves 1
bar segment, the batteries should be replaced immediately to ensure continued operation.
③Infrared Data Receiving Window (iR): Use to receive the channel data from the receiver.
④Battery Cover: Unscrew it can reveal the battery compartment.
⑤Battery Compartment: Insert 2 fresh 1.5V AA batteries. (Alkaline type is recommended, always
replace both batteries.) Observe correct polarity as marked inside the battery compartment.
⑥Power Button.
Wireless Bodypack Transmitter UT-200
① Antenna
②Power Button
③Mute Button: When the transmitter is muted, it products RF with no audio signal modulation; when the
transmitter is un-muted, it products both RF and audio.
④Audio Input Jack: To connect 4-pin mini-XLR connector.
⑤LCD Window: Liquid crystal display indicates operational frequency, channel and battery condition. The
transmitter's “fuel gauge” battery indicator displays a maximum of 4 bar segments. When it leaves 1 bar
segment, the batteries should be replaced immediately to ensure continued operation.
⑥Infrared Data Receiving Window (iR): Use to receive the channel data from the receiver.
⑦Battery Door Switch: Open the battery door by sliding the switch.
⑧Battery Compartment: Insert 2 fresh 1.5V AA batteries. (Alkaline type is recommended, always replace
both batteries.) Observe correct polarity as marked inside the battery compartment.
⑨AF / GT Audio Input Switch: Connect an audio input device (microphone or guitar cable) to the audio input
jack on the top of the body-pack transmitter. Choose AF for microphone input, then GT for guitar cable to
connect with guitar or other instruments.

0 1
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0 3
3 4
A F
1
2 3 4
5
6
713.450MHz
2
1 6
5
7
8
RX1
R F
A F
CH01 1/2
3
4
9
05 LCD display
Main display:
1, Symbol: This symbol will light when the channel is speaking.
2, Channel Display: Channel on use.
3, RF Signal: Show the strength of receiving signal.
4, Main Volume: Show the volume output.
5, Working Status: Display the operating status.
6, Scroll Bar Display.
Channel display:
1, Channel number display: Show the operating channel (RX1 means receiving channel 1)
2, RF signal
3, AF signal
4, Channel display
5, Frequency display
6, Linking Multiple WAM-400: If more than one WAM-400 link together, this sign appears and is
flashing.
7, Number of Linking WAM-400: ½, 1 means the first wireless mixer, 2 means the total linking
mixers.
8, Operating Menu Display: Display the operating menu.
9, Scroll Bar Display.
AUTO SYNC

0 1
3 3
0 3
3 4
A F
0 1
3 3
0 3
3 4
A F
P13 P14
System Setup
06
Main System Setup
1)Turn on the wireless mixer, the LCD displays the preset data.
2)Rotate the CONTROL knob to view the setting status.
3)To enter the menu mode: Press and hold the CONTROL knob 3 seconds to enter the edit mode,
rotate this knob once to select and set MODE, Last Lock, Hold Time, Priority Select, Threshold Level,
Volume Level, Language Select, Speak Number, Work Set, CD Vol Level, PC Vol Level, or Exit.
①, MODE: Selecting “MODE”, then press CONTROL knob to enter edit mode, rotate this knob,
the LCD will display “Manual” or “Auto”, if stopping on “Manual”, the Threshold Level will be set by
manual; if stopping on “Auto”, the Threshold Level will be set automatically by the sold Level will
be set automatically by the system's micro processor ( if MODE is “Auto”, there will be NO
“Threshold Level” setting ). Press CONTROL knob to confirm the desire choice, then LCD move
to the next setting.
②, Last Lock: Lock the last microphone for continuous speaking. Selecting “Last Lock”, then
press CONTROL knob to enter edit mode, rotate this knob, the LCD will display “ON” or “OFF”, if
stopping on “ON”, the last microphone will be always ON until the a new activated microphone to
override it; if stopping on “OFF”, the microphone will be off after the “Hold Time”. Press
CONTROL knob to confirm the desire choice, then LCD move to the next setting.
MODE
LAST LOCK
AUTO
LAST LOCK

P15 P16
③, Hold Time: Set the activated microphone's hold time after the speaker stop speaking. (Make
sure the microphone is unlocked.) Select “Hold Time”, then press CONTROL knob to enter edit
mode, rotate this knob, the LCD will display in 0.1S step, providing a 0.1S to 1S range, Press
CONTROL knob to confirm the desire choice, then LCD move to the next setting.
④, Priority Select: Set the microphone at priority. Select “Priority Select”, then press CONTROL
knob to enter edit mode, rotate this knob, to choose the priority channel, if there are several
receivers to link together for use, the LCD will display the first one A, the second one B, until the
fifth one E, can set two channels at priority at the most, press CONTROL knob to confirm the desire
choice. Finally contrarotate CONTROL knob, until the arrowhead on the lower right corner
becomes dotted line, press CONTROL, LCD move to the next setting.
⑤, Threshold Level: Change the output limiter threshold, under “MODE” is “Manual” (factory preset
is “Auto”. Select “Threshold Level”, then press CONTROL knob to enter edit mode, rotate this knob,
LCD will display 1dBm step, providing a 1dBm to 10dBm range. Press CONTROL knob to confirm
the desire choice, then LCD move to the next setting.
⑥, Volume Level: Main volume level output setting. Select “Volume Level”, then press CONTROL
knob to enter edit mode, rotate this knob, LCD will display 1dBm step, providing a -60dB to 5dB
range. Press CONTROL knob to confirm the desire choice, then LCD move to the next setting.
HOLD TIME
PRIORITY SELECT
THRESHOLD LEVEL
VOLUME LEVEL

P17 P18
⑿, Exit: To exit the system.
⑦, Language Select, Both “Chinese” and “English” are available.
⑧, Speak Number: Set the simultaneous channels, there are 1 channel, 2 channels, 3
channels and 4 channels are available.
⑨, Work Set: Select “Pelegate” there are two or more units to link together for use; select
“Chairman”, there is one unit to use only.
⑩, CD VOL Level: Volume level setting in 1dBm step, providing a -64dB to 0 dB range.
⑾, PC VOL Level: Volume level from computer, 1dBm step, providing a -64dB to 0 dB range.
LANGUAGE SELECT
SPEAK NUMBER
WORKS SET
CD VOL LEVEL
PC VOL LEVEL
EXIT

CH1-CH2-CH3-CH4
P19 P20
WAM-400 Menu Display:
CONTROL
(3 seconds)
Mode Manual (“Threshold Level” setting)
Auto ( Factory preset, automatic setting by system micro processor)
Last Lock ON ( the microphone will be always “ON”)
OFF ( the microphone will be OFF after the “Hold Time”)
Hold Time (Set the activated microphone's hold time after the speaker stop speaking)
Priority Select (Set the microphone at priority, 2 units at the most)
Threshold Level (Change the output limiter threshold, under “MODE” is “Manual”)
Volume Level (System main volume output)
Language Select Chinese
English
Speak Number (Set the simultaneous speaking channels, 4 channel at the most)
Works Set Pelegate (Two or more mixers link together for use)
Chairman (One mixer use only)
CD Vol Level (CD volume level)
PC Vol Level (Computer volume level)
Exit (Exit the system)
Each Channel Setup
1, Press CH1 button, rotate “CONTROL” knob to select and set Sync, Scan, Channel, SQELCH, or Volume,
press “CONTROL” again to enter edit mode:
①Sync: Infrared data transmitting. Let the transmitter's IR window face to “SYNC” window, press “CONTROL”,
to receive the data signal from the receiver.
②Scan: Stop at “Scan”, then press “CONTROL” knob, system will auto-scan and lock on to an open,
interference-free frequency in 40 S.
③Channel: Stop at “Channel”, then press “CONTROL” knob to select the preset 32 channels manually.
④SQELCH: Stop at “SQELCH”, then press “CONTROL” knob, the squelch level is adjustable in ten 5dB steps,
providing a 50dB range. Press “CONTROL” confirm the desired choice. (If interference is a problem, first
consider trying a different frequency, either manually or scanning.)
⑤Volume: Volume output of CH1, stop at “Volume”, then press “CONTROL” knob, the volume output is
adjustable in sixty-five 5dB steps, providing a -60dB to 5dB range. Press “CONTROL” confirm the desired
choice.
2, Same operation as CHI, to set CH2, CH3 and CH4.
Sync (Infrared data transmitting)
Scan (Automatic frequency scan)
Channel (Select frequency manually)
SQELCH (0dB to 50dB)
Volume (-60dB to 5dB)
Channel Setup Menu Display

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4
5
6
789
RS-232
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5
6
789
EXTERNAL CONTROL（RS-232）
P21 P22
Networking Multiple Mixers
If additional inputs are needed, more
WAM-400 mixers (as many as 5) can be
linked using supplied link cables to control
up 20 units microphones.
To link multiple mixers, connect the LINK
OUT of the first mixer to the LINK IN of the
next mixer, finally connect the LINK OUT
jack of the last mixer to the LINK IN jack of
the first mixer.
As long as the link jacks of all mixers are
connected, set up the master unit, then
the automatic mixing functions will be
opened, the mater unit can control the
other 4 units salve, but each slave's
functions of each channel can be used
independently. Volume output of these 5
units is from the master unit.
The first mixer (master)
The second mixer (slave)
The third mixer (slave)
The fourth mixer (slave)
The fifth mixer (salve)
Optional Functions
08
Automatic video
tracking connection
The pin connections:
1: NC (unconnected)
2: TC (data output)
3: RX (data input)
4: NC (unconnected)
5: GROUND
6: NC (unconnected)
7: NC (unconnected)
8: NC (unconnected)
9: NC (unconnected)
NOTE: The automatic video
tracking system VTS-1000
must be connected to the
master unit.
Logic connection
Pin connections:
1: CH1 IN
2: CH3 IN
3: CH1 OUT
4: CH3 OUT
5: GROUND
6: CH2 IN
7: CH4 IN
8: CH2 OUT
9: CH4 OUT
The logic functions of the WAM-400 expand the mixer's range of
installation and control options.
Control Input (IN): This microphone will be mute when its
channel receives low level from external control; this
microphone will open when its channel receives high level from
external control.
Control Output (OUT): When this microphone is opened, its
channel transmits high level; when this microphone is mute, its
channel transmit low level.

07
P23 P24
Specifications
WAM-400 Mixer
Power supply: DC12V
Maximum current: 1A
Carrier Frequency Range: 490MHz~860 MHz
Band Width: 32 MHz
Frequency Stability : ± 10 ppm
Modulation Mode: FM
Sensitivity: 5dBuV, S/N>60dB at 25 deviation
Max.Deviation Range : ±45 KHz
Distortion: <0.9%
Frequency Response: 65~16KHz
S/N: 100dB
Audio Output: RCA Jack (X3); 6.3mm Jack (X1); XLR (X1)
Audio Input / Output: RCA Jack (X1); 6.3mm Jack (X1)
Communication Port: RS-485 (X2)
Recording Output Level: LINE Output - 10dBV
Balanced Output Level: LINE Output - 10dBV
Audio Input Leve: lLINE Input- 10Dbv
UB-200 Boundary Microphone
Element: Fixed-charge back plate, permanently polarized condenser
Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
Carrier Frequency Range: 490MHz~860 MHz
Modulation Mode: FM
Frequency Response: 50-17,000 Hz
Max.Deviation Range: ±45 KHz
Operating Range: 60M typical ( in open space)
Current Consumption: 90mA, typical
RF Power Output: 30mW
Dynamic Range (Typical): > 90 dB，1 kHz at Max SPL
Battery: AA X 2
Battery Current / Life: Approximately 10 hours
UH-200 Handheld Microphone
Carrier Frequency Range: UHF 618-936 MHz
Oscillation: PLL synthesized
Harmonic radiation: <-63dBm
Bandwidth: 32MHz
Max.Deviation Range: ±45KHz
Microphone Element: Cardioid Dynamic / Cardioid Condenser
RF Power Output: 15mW
Battery: AA X 2
Current Consumption: 90mA ( typical)
Battery Current / Life: Approximately 15 hours
Dimension: 52(Φ) X 252 (L)
Weight: 208g ( w/o battery)

P25
UT-200 Body-pack Transmitter
Carrier Frequency Range: UHF 618-936 MHz
Oscillation: PLL synthesized
Harmonic radiation: <-63dBm
Bandwidth: 32MHz
Max.Deviation Range: ±45KHz
Input Connector: 4-pin mini-XLR connector
RF Power Output: 15mW
Battery: AA X 2
Current Consumption: 90mA (typical)
Battery Current / Life: Approximately 15 hours
Dimension: 95(H) X 65(W) X 25(D)
Weight: 165g
ED-3000 Conferencing Microphone
Carrier Frequency Range: UHF 618-936 MHz
Oscillation: Quartz-controlled fixed frequency
Harmonic radiation: <-63dBm
Bandwidth: 32MHz
Max.Deviation Range: ±45KHz
Input Connector: 4-pin mini-XLR connector
RF Power Output: 8mW
Battery: AA X 2
Current Consumption: 85mA, typical
Battery Current / Life: Approximately 13 hours
Dimension: 340mm, 420mm
Weight: 600g ( w/o battery)