Liberator One Wireless Microphone System Instruction and User Manual Contents: Introduction System Features The Transmitter Microphone Connector Lock Transmitter Battery Information Microphone Information The Receiver Antenna Installation Audio Connections Using the Liberator One System Using Multiple Systems Changing the System Frequency Troubleshooting FCC License Application Instructions Warranty Specifications 2 3 4 5 6 8 10 11 16 17 19 21 24 25 27 28 Explanation of Graphical Symbols in the Operating
Installation Note: READ THIS BOOK! The Liberator One System has been designed for easy installation by persons with minimal electronic experience, although some technical knowledge will be helpful. Ultimate system performance depends on proper antenna placement and installation, so pay close attention to the antenna placement guidelines. Take a few minutes to completely read the instructions. Doing so will save you installation time and insure optimum system performance.
IMPORTANT SYSTEM FEATURES: The Liberator One Wireless Microphone System has several innovative features that make it unique from conventional wireless microphones. Frequency Selectable System Both the Transmitter and Receiver are digitally frequency-synthesized for precise frequency control and to allow the system operating frequency to be easily changed. This feature eliminates inconvenience and down-time when the frequency must be changed to avoid interference from other radio services.
TRANSMITTER CONTROLS AND FEATURES The WMS T11 Transmitter is compact and easy to operate. The microphone plugs into the MIC jack. If a rechargeable 9V battery is used, the charger also plugs into the MIC jack to charge the battery. Transmitter Control Switch The Transmitter has a single control switch on top of the unit. There are 3 positions - OFF, MUTE, and ON. OFF - Turns the FM carrier and microphone off. For storage and charging if the rechargeable battery is used.
Microphone Connector Lock The Connector Lock can be added to the microphone plug to prevent the microphone plug from accidentally coming out during use. The connector locking pin attaches to the mic plug and fits into the oval hole next to the MIC jack when the back cover of the transmitter is opened. To attach the Connector Lock, unscrew the plug shell and slip on the locking clip as shown. Then tighten down the plug shell. To Insert or Remove the Mic Plug: 1. Open the back of the Transmitter case.
TRANSMITTER BATTERY INFORMATION Battery Installation: To install the battery, lift up on the battery compartment tab. Handle the battery wires gently when attaching the battery to the snaps. Lay the battery inside the compartment, tuck in the excess wire, and snap the battery compartment shut. Alkaline Batteries: The Transmitter is supplied with a 9V alkaline battery (Eveready 522). An alkaline battery will power the Transmitter for 5 - 6 hours of continuous use, or 10 - 12 hours with intermittent use.
Battery Charging: There are two Chargers available for the BAT 003 Rechargeable Battery. The BAT 005 Charger plugs directly into the Transmitter MIC jack to charge the battery without removing it from the Transmitter. The BAT 004 Charger has battery snaps, allowing the battery to be snapped onto the Charger. NOTE: DO NOT USE SUBSTITUTE CHARGERS. Other Chargers will not provide a full charge with the BAT 003 Battery.
Microphones The Liberator One System is available with two standard microphone choices. The WMS L100 System includes the MIC 041 Omnidirectional Condenser . The WMS L150 System includes the high performance MIC 839 (Shure 839) Omnidirectional Condenser. MIC 041 MIC 839 MIC 022 MIC 015 Optional microphones include the MIC 022 Cardioid Condenser and the MIC 015 Noise-Cancelling Headset microphone. MIC 839 (SHURE) WIRING + MIC - Red Black 3.
Alternate Microphones: The WMS T11 Transmitter is compatible with any lavalier microphone that can be wired as a two-wire element. If you are using an alternate microphone, follow the wiring diagrams below. See the microphone data sheets for wiring details. Williams Sound cannot guarantee the performance of microphones we do not supply. Important Technical Note: The microphone cord is used as the transmitting antenna. The cord length tunes the antenna. The mic cord should be cut to 28 inches.
Receiver Controls and Features Liberator One WMS R11, Front Panel: (A) Power Switch - turns Receiver on and off. Professional VHF Wireless Mic Receiver Programmable Digital Tuning Advanced Noise Reduction Power RF AF Williams Sound (B) Power ON Indicator - glows when Receiver is on. (C) RF Indicator - glows when radio carrier is present. A B C D (D) AF Indicator - flashes when audio signal is present.
Receiver Antenna Installation There are two antenna types, depending on which Liberator One system you purchased. The WMS L100 System includes the ANT 011 Whip Antenna. The WMS L150 System includes the ANT 016 WallMount Dipole Antenna. The ANT 011 Whip Antenna is suitable for portable and general use. The ANT 016 Dipole is suitable for rackmount installations or when extended range is necessary. The ANT 016 is more efficient than the Whip Antenna and will provide the greatest system range.
Dipole Antenna Assembly: Assemble the Dipole Antenna as shown below.
Dipole Antenna (ANT 016) Installation The WMS L150 Liberator One System includes the ANT 016 Dipole Antenna. Assemble the antenna as shown on the previous page. Use the Coaxial Feedline Cable included to connect the Dipole Antenna to the Antenna Connector on the rear panel of the WMS R11 Receiver. The Dipole Antenna is designed to be mounted on a wall. Be sure to use proper fasteners (wall anchors, screws).
Antenna Location: ANTENNA LOCATION IS THE MOST CRITICAL PART OF THE INSTALLATION! DO: - Choose an antenna location that maintains line-of-sight between the antenna and transmitter, as close to the area where the Transmitter will be used as is practical. - Try to mount the antenna at least six to ten feet above floor level, in a vertical orientation. - Position the antenna in a horizontal orientation if it will be mounted directly above the area where the Transmitter will be used.
Antenna System: This receiver is intended for connection to an antenna system, possibly including outdoor antennas, installed to provide some protection against voltage surges and built-up static charges.
Audio Connections: The WMS R11 Receiver can be connected to a microphone input or a line-level input on your mixer or amplifier. (1) Line-Level Connections: Use an appropriate audio cable to connect the WMS R11 Receiver "Unbalanced Line Output" 1/4" jack to an AUX IN, TAPE IN, or LINE IN jack on your amplifier or mixer. This connection will result in the lowest system noise level and leave you an extra Mic Input jack on your mixer or amplifier.
Using the Liberator One System: (1) Install the battery in the Transmitter and plug in the MIcrophone as shown on page 5. (2) Make sure the sound system is turned OFF. Place the Liberator One WMS R11 Receiver near the sound system amplifier or mixer. Plug the AC line cord into the Receiver, and the Receiver into an AC outlet. If the Receiver is to be rack-mounted, use the RPK 003 Rack Mount Kit (not included) and the ANT 016 Wall-Mount Dipole Antenna.
Mute Switch Operation: If you are wearing the wireless microphone and do not wish to be heard, move the Transmitter contol switch to the "MUTE" (center) position. This will leave the Transmitter on, but will silence the microphone. This feature is especially useful for visits to the restroom, etc. The Mute Switch is designed for silent muting of the microphone during normal operation. Moving the control from ON to OFF or from MUTE to OFF may create a "pop" noise in the sound system.
Using Multiple Transmitters: It is possible to use more than one Transmitter with one Receiver, provided that only one Transmitter is turned on at a time. If two or more Transmitters are turned on at the same time on the same frequency, they will block each other and none will produce a clear sound. If multiple microphones are to be used, it is best to use multiple complete systems, each operating on a separate frequency.
Antenna Splitters: To simplify remote antenna installation in multiple system applications, we offer a 1:2 Antenna Splitter Kit (ANT 009) and a 1:4 Antenna Splitter Kit (ANT 010), which allow more than one WMS R11 Receiver to share an antenna. These are not necessary if the ANT 011 Whip Antennas are used. Refer to the diagrams below for wiring details. It may be necessary to use additional antenna line amplifiers or amplified splitters if passive splitter loss results in unacceptable operating range.
UP 1 2 3 4 5 6 7 8 DOWN Switches set for 169.
digital frequency synthesizer circuitry to allow easy frequency (channel) selection. Changing the system frequency is simple, if you follow the directions and heed the precautions below. Precautions: To avoid interference, never operate more than one wireless microphone on the same frequency at the same time. Up to 4 Liberator One systems can be operated simultaneously, but each must be on a different frequency. Your Liberator One system is pre-set to 169.445 MHz. Try using this channel first.
(3) Close the Transmitter cover and change the Receiver frequency to match the Transmitter frequency. GeneralUse WMS R11 PCB Top View ON 1 2 3 4 5 6 OFF 1 2 3 4 ON Front Frequency Programming Switch ON S3 OFF 1 2 3 4 5 6 S2 5 6 UP OFF DOWN WMS R11 Receiver Parts Layout Frequency (MHZ) S2 Settings 1 2 3 4 S3 Settings 2 3 4 5 5 6 1 15 = 169.445 31 = 170.245 47 = 171.045 63 = 171.
DN 16 169.505 UP DN UP UP DN DN DN UP 32 170.305 UP DN DN DN DN UP DN UP 48 171.105 DN UP DN UP UP DN DN UP 64 171.905 DN UP UP UP UP DN DN DN If you need to change the system channel to avoid interference or to operate multiple systems, DO NOT use the following frequencies together: 15&16, 31&32, 47&48, 63&64. Any other combination of these eight can be used together. Special-Use Frequencies: Additional frequencies are available for restricted use under FCC Rules, Part 74.
Changing the WMS R11 Receiver Frequency: (1) Make sure the Receiver is unplugged from AC power. (2) Use a 5/64" hex screwdriver to loosen the four screws on the side of the Receiver case. Lift off the top cover. (3) Locate the two frequency-programming switches, S2 and S3, as shown on the diagram above. Select the Receiver frequency to match the Transmitter frequency by setting the programming switches as shown in the Receiver programming table.
in BOX 13: Enter ".2" on the first line. (Area of operation ... is .2 miles radius of station A.) Fill in the next two lines with the latitude and longitude of your location in degrees and minutes. Fill in 00" for seconds. A local library can supply this information. For example: Degrees Minutes Seconds Direction Latitude 42 27 00 N Longitude 98 15 00 W BOX 14: Enter the street address of your facility on line A. BOX 15: Enter your city on line A. BOX 16: Enter your county on line A.
generally means the RF signal is too weak (out of range or bad battery) or there is an interfering signal present. (4) Frequency mis-match between the Transmitter and Receiver. Make sure both are on the same frequency. See page 21-23. (5) Using two Transmitters on the same frequency at the same time. Transmitters used simultaneously must be on different frequencies. See page 21. (6) Radio interference.
positions shown on the label and read the corresponding frequency. Write that frequency on the line below. Carrier Frequency: System Range: Signal/Noise Ratio: Frequency Response: Total Harmonic Distortion: Field-selectable, 169 -172 MHz Varies with application, 300 feet nom.
(1) Tear off the front sheet of the license application Form 574, labeled Dimensions: Weight: Color: 6-1/2" W x 2-1/2" H x 6" D 2 pounds Black Power Requirements: 120 VAC, 50 or 60 Hz, 3W DC: 12V (Factory mod required) Internal, 5mm, 1/16A, standard blow Fuse: Operating Frequency: Frequency Control: Frequency Stability: Modulation: IF: Sensitivity: Squelch: De-Emphasis: Audio Output: Field-selectable by switches on PCB, 169 - 172 MHz Digital Frequency Synthesizer, PLL + .
