ULWS SERIES 16-CHANNEL UHF WIRELESS MICROPHONE SYSTEM PRODUCT MANUAL
T H A N K YO U F O R C H O O S I NG P O L S E N . The Polsen ULWS user-friendly 16-channel UHF wireless systems will transmit audio 140 feet (40 m). In addition, the ULWS-216 and ULWS-216-H systems feature dual-channel receivers and include two lavalier microphones (ULWS-216) or two handheld transmitters (ULWS-216-H).
CO N T E N T S Overview .................................................................................................................................................................................................. 5-8 Precautions ................................................................................................................................................................................................... 9 Instaling Batteries ...........................................................
OVERVIEW RECEIVER 6. 5. 4. 3. 2. 1. ULWS-16 1. RF indicator 2. Down button 3. Set button 4. Up button 5. LCD screen 6. Power button 7. Antenna B input 8. Balanced 3-pin XLR output 9. Unbalanced 1/4 in. output 10. Power supply socket 11. Antenna A input 4 16 CH 7. 8. 9. 10. 11.
RECEIVER ULWS-216 1. 2. 3. 4. 5. 6. RF indicator LCD Screen Power button Down button Set button Up button 6. 7. Antenna B input 8. Channel 2 balanced 3-pin XLR output 9. Channel 1 balanced 3-pin XLR output 5. 4. 3. 2. 8. 1. DUAL 16 CH 7. 10. Unbalanced 1/4 in. output (ch. 1 and 2 combined) 11. Power supply socket 12. Antenna A input 9. 10. 11. 12.
LC D S C R E E N 1. 2. 3. 4. 5. 6. 7. 8. 9. Output volume level Transmitter gain Transmitter RF power Channel indicator Audio level meter Channel frequency RF input indicator Auto-lock icon Auto mute indicator A L S O I N C LU D E D • • • • • 6 Antenna (×2) Antenna extension cables (×2) Antenna adapter plugs (×2) DC power supply Carrying case 4. 3. 2. 1. 9. 5. 6. 7. 8.
TRANSMITTER 1. Level control 2. Microphone input 3. Antenna 4. TX LED 5. Channel indicator LED 6. Channel up/down buttons 7. Battery compartment panel 8. Tie clip 9. Cardioid lavalier microphone 10. Windscreen 11. Line-level input 12. Charging contacts 13. Belt clip 3. 2. 1. 4. 5. 11. 6. 13. 7. A L S O I N C LU D E D AA batteries (×2) 8. 9. 12. 10.
HANDHELD TRANSMITTER 1. Grille and windscreen 2. Mic capsule 3. Anti-roll ring 4. LCD screen 5. Channel indicator 6. Battery meter 7. Power switch 8. Battery cover 9. Battery compartment 10. Channel selector button 11. Gain level control 12. Antenna 1. 3. 4. 2. 5. 6. 8. 7. 10. 11. 9. 12.
P R E C AU T I O N S • Please read and follow these instructions, and keep this manual in a safe place. • Exposure to high sound levels can cause permanent hearing loss. Avoid listening at high volumes for extended periods of time. • Keep this product away from water and any flammable gases or liquids. • Handle this product with care. • Clean this product with only a soft, dry cloth. • Keep this product away from children. • Use only parts provided by the manufacturer.
I N S TA L L I N G B AT T E R I E S The transmitter and handheld transmitter are each powered by two AA batteries. To install the batteries, follow these steps: Transmitter 1. Make sure the unit is turned off by rotating the level control knob to the off position. 2. Gently squeeze the battery compartment panel by the arrows on both sides, and pull out to swing the panel open. 3. Insert fresh batteries in the proper orientations. 4. Close the panel completely so it locks into place.
MOUNTING THE RECEIVER Use the mounting hardware (sold separately) to install the receiver into a standard 19-inch equipment rack. 1. With the included screws, mount the angled rack attachments to the sides of the receiver. 2. Attach the rack ears to the angled attachments. 3. Attach the antenna extension cables to both antenna input jacks. 4. Place the antenna plug adapters into the rack holes so the nut is on the outside of the rack, and attach the extension cables. 5.
CONNECTING THE RECEIVER Balanced XLR Audio Output Use a balanced XLR cable to connect the output of the receiver to the balanced input on a mixing console. Unbalanced 1/4-Inch Audio Output The 1/4 in. phone jack can be connected to an unbalanced aux input of a mixer, guitar amp, or recorder.
3. Press the up or down buttons [ ] to select a channel. 4. Press set to confirm. 5. Look at the RF input indicator [ ] on the LCD screen. If it lights up or flickers, it indicates there’s interference on that channel. Select a different channel and repeat these steps until you find an interference-free channel. Note: If you connect the receiver to a sound system, mute the sound system. Anytime you change channels, remove your headphones, and mute connected sound systems to avoid audible RF noise bursts.
Selecting channels: 1. Press and hold the up or down button [ will blink. ]for 2 seconds. The channel number on the LCD display [ ] 2. Change the channel with short presses of the up or down buttons while the channel number is blinking. 3. The channel number will continue to blink for 6 seconds. The channel number stops blinking to indicate that the channel has been selected. Once the transmitter and receiver have been set to the same channel, the RF input indicator [ ] will glow.
HANDHELD TRANSMITTER Turn on the handheld transmitter by moving the power switch to the on position. The LCD display will illuminate, showing the selected channel [ ] and battery icon[ ]. Note: Anytime you change channels, remove your headphones and mute the connected sound systems to avoid audible RF noise bursts. Setting the transmitter channel: Important! After you have selected an interference-free channel, set the handheld transmitter to the same channel. 1. Remove the battery compartment cover. 2.
4. Adjust the audio output level on the receiver or the input level on your input device as necessary. Make sure a sufficient level is being recorded. The objective is to transmit the highest possible level without distortion for the best signal-to-noise ratio throughout the signal path. Important! It is not recommended to adjust the gain setting of the handheld transmitter. The gain is preset to the ideal setting. Any volume adjustments should be made on the receiver or on the input device. 5.
MOUNTING THE TRANSMITTER Once you have determined that the transmission quality and level are good, mount the beltpack transmitter to your talent. 1. Use the integrated belt clip to secure the transmitter to your talent. Use the included tie clip to place the microphone on your talent. 2. If you are connecting to a line-level source, use an appropriate cable to connect to the mono 3.5 mm jack. Note: The line-level input overrides the microphone input.
R E C E I V E R O P E R AT I O N Attaching the Antennas The receiver should always be used with the antennas attached. Insert an antenna into the antenna input jack on the back of the receiver, and twist the coupling nut a quarterturn until secure. To attach the antennas to the receiver when it’s mounted into an equipment rack (see Mounting the Receiver on page 11).
Manual Channel Selection To select a channel manually: 1. 2. 3. 4. Press and hold the set button [ SET ] until the auto-lock icon [ ] turns off. ] blinks. Press the set button repeatedly until the channel indicator [ ] to select the desired channel. Use the up and down buttons [ Press the set button to accept. Volume The output volume level adjusts the volume output level that’s sent to the mixing board or PA. To adjust the volume: 1. 2. 3. 4.
S P E C I F I C AT I O N S SYSTEM FREQUENCY RANGE 584.400 to 602.450 MHz NUMBER OF CHANNELS 16 FREQUENCY ALLOCATION Ch. 1 584.400 MHz, Ch. 2 587.500 MHz, Ch. 3 589.575 MHz, Ch. 4 591.050 MHz, Ch. 5 593.425 MHz, Ch. 6 595.200 MHz, Ch. 7 598.450 MHz, Ch. 8 599.650 MHz, Ch. 9 601.275 MHz, Ch. 10 603.775 MHz, Ch. 11 605.500 MHz, Ch. 12 606.750 MHz, Ch. 13 586.025 MHz, Ch. 14 590.525 MHz, Ch. 15 594.150 MHz, Ch. 16 602.
OUTPUT IMPEDANCE XLR: 3 kΩ 1/4 in.: 3 kΩ AUDIO OUTPUT LEVEL XLR: +10 dBu 1/4 in.: +8 dBu RF SENSITIVITY <-92 dBm for 30 dB S/N ratio IMAGE REJECTION >50 dB HOUSING Metal POWER REQUIREMENT 12 V, 5 A DC DIMENSIONS (W × H × D) ULWS-16: 8.3 × 1.7 × 6.75 in. (21.2 × 4.4 × 17.1 cm) ULWS-216: 16 × 1.7 × 6.75 in.(40.6 × 4.4 × 17.1 cm) WEIGHT ULWS-16: 1.7 lb. (771 g) ULWS-216: 3 lb. (1.
MAXIMUM INPUT VOLTAGE 1000 mV INPUT 1/8 in. (3.5 mm) POWER SUPPLY Two AA batteries OPERATING TIME Approximately 8 hr. DIMENSIONS 4.4 × 2.6 × 1.1 in. (11.3 × 6.5 × 2.9 cm) WEIGHT With Batteries: 5 oz. (14.2 g); Without batteries: 3.3 oz. (94 g) MICROPHONE TRANSDUCER 22 Back electret condenser POLAR PATTERN Cardioid FREQUENCY RESPONSE 20 Hz to 16 kHz SENSITIVITY -47 dB ±3 dB V/Pa IMPEDANCE 2000 Ω ±30% MAXIMUM SPL 130 dB OPERATING VOLTAGE 1.5 A, 10 V HEAD DIAMETER 1/4 in. (6.
HANDHELD TRANSMITTER TRANSDUCER Dynamic POLAR PATTERN Cardioid FREQUENCY RESPONSE 60 Hz to 18 kHz RF OUTPUT POWER 10 mW IMAGE REJECTION >55 dBc SIGNAL-TO-NOISE RATIO 102 dB TOTAL HARMONIC DISTORTION <1% MAXIMUM INPUT VOLTAGE 1000 mW POWER SUPPLY Two AA batteries OPERATING TIME Approximately 8 hr. DIMENSIONS (H × W × L) 2.1 × 2 × 10 in. (5.3 × 5.1 × 25.4 cm) WEIGHT With batteries: 15.6 oz. (441 g); Without batteries: 13.6 oz.
T R O U B L E S H O OT I NG Because of the widespread use of wireless technology, many RF signals pervade our environment. This can sometimes make it challenging to work with wireless systems like the ULWS-16 and ULWS-216. In some cases, you may be doing everything correctly and still be experiencing some difficulties. Included in this troubleshooting guide are some tools and tips for dealing with RF signals and interference. 24 Problem Possible Cause Solution Comment The audio is noisy or distorted.
Problem Possible Cause Solution Comment The audio is noisy or distorted. This can include drop outs, white noise, bursts, pops, and clicks. (Continued) The input level on the recorder or mixer is too high. For general dialogue, try to keep the microphone-level in the target-level mark. Because the talent can adjust this, make sure the talent is aware of the receiver and knows not to change the controls unless instructed otherwise. Turn down the audio input level on your recording device.
Problem Possible Cause Solution Comment There is no audio or the audio is intermittent. The batteries in one of the units are dead. Replace the dead batteries in the proper unit. Make sure to bring extra batteries with you. The audio cable is unreliable, or the cable or microphone is unplugged. Check the audio cable to make sure it’s reliable and is not shorting. The line source is off or not playing back audio.
Problem Possible Cause Solution There is no audio or the audio is intermittent. (Continued) The audio levels are too low. Too much ambiance is being picked up. Comment Turn up the microphone level on the transmitter. The target level mark on the transmitter is a good start. Adjust the headphone level on the receiver and listen to make sure the signal is transmitting. Turn up the input levels on your recording device or mixer. The transmitter and receiver are set to different channels.
O N E -Y E A R L I M I T E D WA R R A N T Y This Polsen product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs later.
