
Safety Operation and Notice
P3 P4
①UHF band UHF 554MHz~936MHz wireless automatic mixer for a maximum of four wireless
microphones. With AFS(Auto frequency selection) function, antenna diversity. Four channels, a total
of 45 frequencies for users to selecti
②Bright and easy-to-read LCD display shows RF/AF, level and other operation status.
③Automatic gain adjustment by microprocessor control.
④2-unit daisy chain by accessory link cable to control up to 8 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 0.1s to 1s.
⑪Several inputs / outputs for audio signals:
Two RCA outputs to realize long distance with low noise transmission.
RCA iput / output for recordings.
One balanced line output (6.3mm jack ).
One 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 UD-200, 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.
1. Please read instructions for safety operation carefully before installation and operation.
2. Please keep this manual.
3. Please cut off power , pull out the power plug and all connection cables before moving the device, otherwise it
may damage the cables and lead to fire or electroshock.
4. Please cut off power , pull out the power plug and all connection cables before cleaning the device. Clean only
with dry cloth.
5. If power cord is damaged ( such as cut off or the core is bare),please contact agent to get the replacement.
Continue using damaged power cord may lead to fire or electroshock.
6. If the device is not used for a long time, please cut off the power, it is better to pull out the power plug.
7. Equipment in a tropical / temperate climate conditions can be normal use.
8. Do not scratch, bend, twist , stretch or heat the power cord, otherwise the power cord may be damaged and a fire
or electroshock could happen.
9. Do not open the case, otherwise it could lead to electroshock. For maintenance or repair, please contact our local
agent.
10. Do not touch the plug with wet hand, otherwise a fire or electroshock could happen.
11. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
12. Do not use this apparatus near water.
13. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in
accordance with the manufacturer’s instructions.
14. DO NOT cover the Ventilation holes, such as: newspaper / fabric / curtains and other items.
15. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat. Do not place any open flame sources on the product.
16. Do not throw the waste battery, please put in the designated bins.
17. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases,
on the apparatus.
18. This symbol" "indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
19. All Relacart products will be afforded one year free maintenance except for man-made damage, such as:
— the device is damaged by man-made factors.
— the device is damaged by improper operation.
— some components are damaged or loss after the self-disassembly.