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RWM-66 Owner's Manual

Keith Harris
Updated

Rockville RWM-66

6-Mic Adjustable Frequency Wireless UHF Microphone System

 

Included

  • Full Metal Rack Mount Receiver with LCD Screen

  • (6) Handheld Metal Microphones with Digital Display

  • (3) Antennas

  • (12) AA Batteries

  • 6 Foot ¼˝ Interconnect Cable (connects mic receiver to mixer or speaker)

  • Power Adapter w/ 5 Foot Cord

  • Owner's Manual

  • 1-Year Manufacturer's Warranty

 

Tip: To minimize feedback, avoid operating the microphones in close proximity of or in front of speakers.

Diagram showing correct and incorrect placement of a speaker relative to a microphone: the correct setup shows the speaker placed behind the person and pointing away from the microphone, while the incorrect setup—marked with a large 'X'—shows the speaker placed behind the person and pointing directly at the microphone.

 

Receiver (Front)

An illustration showing front panel callouts of the receiver: a. Antennas b. Channel 1 LCD display c. Channel 1 volume control d. Channel 2 LCD display e. Channel 2 volume control f. Channel 3 LCD display g. Channel 3 volume control h. Channel 4 LCD display i. Channel 4 volume control j. Channel 5 LCD display k. Channel 5 volume control l. Channel 6 LCD display m. Channel 6 volume control
  1. Antennas

  2. Channel 1 LCD display

  3. Channel 1 volume control knob

  4. Channel 2 LCD display

  5. Channel 2 volume control knob

  6. Channel 3 LCD display

  7. Channel 3 volume control knob

  8. Channel 4 LCD display

  9. Channel 4 volume control knob

  10. Channel 5 LCD display

  11. Channel 5 volume control knob

  12. Channel 6 LCD display

  13. Channel 6 volume control knob

 

Receiver (Back)

An illustration showing rear panel callouts of the receiver: a. Power switch b. 12V DC power input c. Antenna 5 & 6 connector d. Unbalanced mic mix output e. Balanced mic mix output f. Channel 6 XLR output g. Channel 5 XLR output h. Antenna 3 & 4 connector i. Channel 4 XLR output j. Channel 3 XLR output k. Channel 2 XLR output l. Channel 1 XLR output m. Antenna 1 & 2 connector

  1. Power switch

  2. DC 12V power input

  3. Channel 5 & 6 antenna port

  4. Unbalanced ¼˝ mix out: outputs mix of all mic channels

  5. Balanced XLR mix out: outputs mix of all mic channels

  6. Channel 6 balanced XLR output

  7. Channel 5 balanced XLR output

  8. Channel 3 & 4 antenna port

  9. Channel 4 balanced XLR output

  10. Channel 3 balanced XLR output

  11. Channel 2 balanced XLR output

  12. Channel 1 balanced XLR output

  13. Channel 1 & 2 antenna port

 

Microphone

An illustration showing handheld microphone callouts: a. Microphone grill b. Digital display screen c. Power button d. Battery compartment cover e. IR sync sensor

 

 

  1. Microphone windscreen

  2. Digital screen: displays channel frequency and battery level

  3. Power on/off button: Press and hold for 2 seconds to power on or off. While the mic is powered on, press quickly to mute or unmute.
     

  4. Battery compartment

  5. Frequency adjustment button: While the receiver is on, press this button to adjust both the microphone's and the receiver's frequency.

 

LCD Displays

Receiver Display:

An illustration showing receiver LCD display callouts: a. Group indicator b. Channel number c. RF signal strength meter d. AF audio level meter e. Operating frequency display

  1. Mic Group ID

  2. Channel number

  3. Radio frequency (RF): Shows the strength of the signal between the mic and the receiver.

  4. Audio frequency (AF): Shows the audio level output of the mic.

  5. Mic frequency

 

 

 

 

Mic Display:

An illustration showing handheld microphone LCD display callouts: f. Battery indicator g. Frequency display

 

 

  1. Mic battery level
     

  2. Mic frequency

 

 

 

 

 

Setup and Operation

  • Plug in the power supply and turn on the receiver.

  • The receiver should be at least 3' off the ground for optimal transmission.

  • Connect the antennas.

  • The antennas should extend vertically.

  • Depending on your setup, connect the appropriate outputs.

  • Make sure the microphone battery is properly inserted and the base is secure.

  • Turn on the microphone. It should automatically connect to the receiver.

  • Adjust channel volume as necessary.

 

Specifications

  • Operating Range*: 300'–400' (indoor), 250'–350' (outdoor)

  • Channel: 8 x 6 channel selection

  • Frequency Range: 500MHz – 599MHz

  • Frequency Stability: ±0.005%

  • Modulation Mode: UHF

  • Frequency Response: 50Hz – 20kHz (±3dB)

  • Dynamic Range: 96dB

  • S/N: 92dB

  • T.H.D: < 0.1% (1kHz)

  • Delay: < 3.0ms

  • Transmitter Power: 10mW

  • Receiver Sensitivity: -96dB

  • Audio Outputs: XLR balanced + ¼˝ unbalanced

  • Power Voltage: AC110V – 240V 50/60Hz

  • Operating Temperature: 14°F – 122°F

  • Mic Battery Operating Time: up to 10 hours

 

Troubleshooting

Problem

Solution

No sound or faint sound

  • Verify all sound system connections or adjust channel volume as needed.

  • Verify that the receiver is connected to the mixer/amplifier.

  • Verify your mics are turned on.

  • Make sure the mic is not muted.

  • Make sure the batteries are installed correctly.

  • Change the battery if necessary.

  • Make sure AC adapter is securely connected to the unit and to the electrical outlet.

  • Make sure receiver is powered on.

Audio artifacts or dropouts

  • Change receiver and mic to a different frequency.

  • Identify nearby sources of interference (cell phones, Wi-Fi access points, signal processor, etc.) and shutdown or remove source.

  • Change the microphones' batteries.

  • System must be set up within recommended range and receiver kept away from metallic surfaces.

  • Microphone must be used in receiver's line of sight for optimal sound.

Distortion

  • Reduce microphone channel volume.

  • Reduce mixer's input gain and volume.

Sound level variations when switching to different sources

  • Adjust microphone volume as necessary.

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