ULWS-216 - Charger Polsen - Free user manual and instructions

Product Type	16-Channel UHF Wireless Microphone System (Dual-Channel Receiver)
Model	ULWS-216
Brand	Polsen
Frequency Range	584.400 to 602.450 MHz
Number of Channels	16
Operating Distance	≤140 ft (40 m); up to 300 ft (91.4 m) in optimum conditions
Receiver Outputs	2× Balanced XLR, 1× Unbalanced 1/4 in. (combined for both channels)
Dynamic Range	>102 dB
Signal-to-Noise Ratio	>98 dB
Total Harmonic Distortion	<0.8%
RF Output Power (Transmitter)	10 mW
Power Supply (Receiver)	12 V DC, 5 A (included adapter)
Power Supply (Transmitter)	2× AA batteries (alkaline or rechargeable)
Battery Life (Transmitter)	Approximately 8 hours
Receiver Dimensions (W×H×D)	16 × 1.7 × 6.75 in (40.6 × 4.4 × 17.1 cm)
Receiver Weight	3 lb (1.4 kg)
Transmitter Dimensions	4.4 × 2.6 × 1.1 in (11.3 × 6.5 × 2.9 cm)
Transmitter Weight (with batteries)	5 oz (142 g)
Microphone Type	Cardioid lavalier (back electret condenser)
Microphone Frequency Response	20 Hz - 16 kHz
Housing Material	Metal (receiver)
Included Accessories	2 antennas, 2 antenna extension cables, 2 antenna adapter plugs, DC power supply, carrying case, 2 lavalier microphones, 2 beltpack transmitters, windscreens, tie clips, 2 AA batteries
Care Instructions	Clean with a soft, dry cloth only. Keep away from water, flammable gases/liquids, and children.
Spare Parts / Repairability	AA batteries (standard/rechargeable). Use only Polsen ULW-BBCH charger for rechargeable batteries. Contact Polsen for service.

Frequently Asked Questions - ULWS-216 Polsen

What is the operating range of the Polsen ULWS-216?

The system operates up to 140 ft (40 m) under normal conditions and up to 300 ft (91.4 m) in optimum conditions with clear line of sight.

How do I change the channel on the receiver?

Press and hold the Set button until the auto-lock icon disappears. Then press Set repeatedly until the channel indicator blinks. Use the Up/Down buttons to select a channel and press Set to confirm.

Can I use rechargeable batteries in the transmitter?

Yes, you can use rechargeable AA batteries. To recharge them, you need the optional Polsen ULW-BBCH charger. Do not attempt to charge standard batteries.

What should I do if I hear interference or noise?

First, ensure the transmitter and receiver are on the same channel. If interference persists, change to a different channel (at least three channels apart from other systems). Keep antennas unobstructed and maintain line of sight.

How do I adjust the audio volume?

On the transmitter, rotate the level control knob. On the receiver, press and hold Set until auto-lock turns off, then press Set repeatedly until the volume indicator blinks. Use Up/Down to adjust the output volume.

What type of microphone comes with the system?

The ULWS-216 includes two cardioid lavalier microphones (back electret condenser) with windscreens and tie clips.

Can I connect the receiver to a mixing console?

Yes, use a balanced XLR cable to connect the receiver’s XLR output to a microphone-level input on the mixer. The 1/4 in. output can be used for unbalanced aux inputs.

What does the auto-lock feature do?

Auto-lock prevents accidental changes to receiver settings by locking all buttons after 5 seconds of inactivity. To unlock, press and hold the Set button until the lock icon disappears.

How do I mount the receiver in a rack?

Attach the angled rack mounts and rack ears to the receiver using the included screws. Connect antenna extension cables and adapter plugs, then secure the assembly in a standard 19-inch rack with appropriate rack screws.

What is the warranty period for the Polsen ULWS-216?

The product is covered by a one-year limited warranty from the original purchase date against defects in materials and workmanship. Contact Polsen Customer Service for service.

USER MANUAL ULWS-216 Polsen

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).

The ULWS system boasts many professional features like line input and frequency agility that are ideal for live performance as well as applications such as interviews, lectures, and electronic news gathering. Both ULWS systems deliver pristine audio transmission for broadcast-quality recordings. You can choose from 16 channels to avoid interference. The systems also feature a true diversity receiver with balanced, low-impedance XLR output that can be fed directly to the microphone-level input of a mixing console.

The ULWS-16 and ULWS-216 systems include a transmitter that's equipped with a line input that enables the transmission of devices such as an audio mixer. Cardioid lavalier microphones provide flexible positioning options and discreet microphone placement.

The ULWS-16-H and ULWS-216-H systems include sturdy, broadcast-quality handheld transmitters that are deal for applications such as live performance, news reporting, and interviews. The handheld transmitter features a mic capsule with a cardioid polar pattern great for video applications like outdoors, on trade show floors, or at live events where background noise can be problematic.

CONTENTS

Overview 5-8

Precautions 9

Instaling Batteries 10

Mounting the Receiver 11

Connecting the Receiver 12

Operating Instructions 12-16

Mounting the Transmitter 17

Receiver Operation 17-19

Specifications 20-23

Troubleshooting 24-27

Warranty 28

OVERVIEW

RECEIVER

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

RECEIVER

ULWS-216

1. RF indicator
2. LCD Screen
3. Power button
4. Down button
5. Set button

6. Up button

7. Antenna B input

8. Channel 2 balanced 3-pin XLR output

9. Channel 1 balanced 3-pin XLR output

10. Unbalanced 1/4 in. output (ch. 1 and 2 combined)

11. Power supply socket
12. Antenna A input

LCD SCREEN

1. Output volume level
2. Transmitter gain
3. Transmitter RF power
4. Channel indicator
5. Audio level meter
6. Channel frequency
7. RF input indicator
8. Auto-lock icon
9. Auto mute indicator

ALSO INCLUDED

• Antenna (×2)
  • Antenna extension cables (×2)
  • Antenna adapter plugs (×2)
• DC power supply
• Carrying case

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

ALSO INCLUDED

AA batteries (×2)

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

PRECAUTIONS

• 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.
• All images are for illustrative purposes only.

INSTALLING BATTERIES

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.

Tip: You can use rechargeable AA batteries with the transmitter, and recharge them by inserting them into the Polsen ULW-BBCH charger (sold separately). Use only rechargeable batteries with the charger. Do not attempt to charge standard batteries—this may result in damage to the unit and void the warranty.

Handheld Transmitter

1. Unscrew the battery compartment cover to expose the battery compartment.
2. Insert fresh batteries according to the orientation diagram inside the compartment.
3. Replace the battery cover by screwing it firmly back 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. Attach the antennas to the plug adapter from the outside of the rack, and tighten the adjustment nut until it is snug against the rack and holds the antenna securely in place.
6. Use standard rack screws and washers (not included) to mount the receiver and antenna assembly into your equipment rack.

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.

OPERATING INSTRUCTIONS

Before you connect the system to your mixing board and talent, you should test and set initial parameters as detailed below:

Connecting the Transmitter and Receiver

RECEIVER

Channel selection:

Follow these steps with the transmitter powered off.

1. Press and hold the set button [SET] until the auto lock icon [disappears.

2. Press the set button to make the channel indicator [88] blink.

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.

TRANSMITTER

1. Connect the lavalier microphone to the transmitter's microphone input, or plug a line-level source such as an audio mixer or mobile device to the transmitter's line-level input.
2. Turn on the transmitter by rotating the level control clockwise. You should hear a click and see the channel indicator LED [15]light up.
3. Use the channel selector buttons [▲▼] to set the transmitter to the same channel as the receiver (see Selecting Channels on page 14).

Selecting channels:

1. Press and hold the up or down button [▲▼] for 2 seconds. The channel number on the LCD display [18] will blink.
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 [Y] will glow.

Setting the Volume

Adjust the level control knob on the transmitter so the audio level meter on the receiver indicates that it's receiving a strong signal without peaking.

On the receiver, press and hold the set button until the auto lock icon disappears. Use the up and down buttons to adjust the volume output level. The objective is to transmit the highest possible level without distortion.

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 [18] and battery icon[3]

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. Press and hold the select button. The channel indicator on the LCD display will blink.
3. Change the channel with short presses of the select button until the desired channel is displayed. The channel indicator will continue to blink for 10 seconds and then stop to indicate that the channel has been selected.

Note: If you are using multiple ULWS-16 and ULWS-16-H wireless systems, make sure each system is set to a different channel—at least three channels apart as a guard band.

1. 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.
2. When holding the ULW-16-HHT handheld transmitter, hold it in the middle of the transmitter body, not at the end where the antenna is located. Covering the antenna with your hand will degrade the transmission quality.

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.

The transmitter's TX LED will glow orange when the unit is transmitting, and the receiver's RF indicator LED [■] will glow blue when the unit is receiving a strong radio frequency signal.

RECEIVER OPERATION

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 quarter-turn until secure.

To attach the antennas to the receiver when it's mounted into an equipment rack (see Mounting the Receiver on page 11).

Auto Lock

The auto-lock feature ensures that the receiver's setting will not change if the buttons, including the power button, are accidentally pressed or bumped.

To disengage auto lock, press and hold the set button until the auto-lock icon [icon] turns off. You will be able to navigate through the settings by pressing the set button repeatedly. Adjust the values with the up and down buttons [▲▼].

After adjusting the settings values, auto lock engages after 5 seconds of inactivity.

Manual Channel Selection

To select a channel manually:

1. Press and hold the set button [SET] until the auto-lock icon [🔒] turns off.
2. Press the set button repeatedly until the channel indicator [38] blinks.
3. Use the up and down buttons [▲▼] to select the desired channel.
4. 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. Press and hold the set button [SET] until the auto-lock icon turns off.
2. Press the set button repeatedly until the volume indicator [ ] blinks.
3. Use the up and down buttons [▲▼] to adjust the output volume level.
4. Press the set button to accept.

SPECIFICATIONS

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. 16 602.450 MHz
SWITCHING BANDWIDTH 25 MHz
PEAK DEVIATION ±55 kHz
TOTAL HARMONIC DISTORTION	<0.8%
OPERATING DISTANCE	≤140 ft. (40 m); 300 ft. (91.4 m) in optimum conditions

RECEIVER

DYNAMIC RANGE	>102 dB
SIGNAL-TO-NOISE RATIO	>98 dB
OUTPUT	ULWS-16: 1× XLR, 1× 1/4 in.ULWS-216: 2× XLR, 2× 1/4 in.
OUTPUT IMPEDANCE	XLR: 3 kΩ1/4 in.: 3 kΩ
AUDIO OUTPUT LEVEL	XLR: +10 dBu1/4 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. (1.4 kg)

TRANSMITTER

FREQUENCY RESPONSE	60 Hz to 18 kHz
RF OUTPUT POWER	10 mW
IMAGE REJECTION >55 dBc
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	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. (6.3 mm)
CABLE LENGTH 42 in. (106.6 cm)

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. (385 g)

TROUBLESHOOTING

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.

Problem Possible Cause Solution Comment
The audio is noisy or distorted.This can include drop-outs, white noise, bursts, pops, and clicks.	The RF signal is weak.	Make sure there is an unobstructed line of sight between the receiver's and the transmitter's antennas. Keep in mind that your body, wardrobe, and onstage sets are possible obstructions.Make sure the receiver and transmitter are within the 100-foot (30.5 m) range.If there are obstructions, you may need to move closer.When using the ULW-16-HHT handheld transmitter, make sure you're holding it in the middle of the body and that your hand isn't covering the antenna, located at the end of the transmitter.	If the RF indicator blinks, the signal is not strong enough. Check the audio.The RF indicator should consistently glow blue.
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.	Turn down the audio input level on your recording device.Make sure the output of the receiver is plugged into the line-level input on your mixer, and that the line/ mic switch on your mixer is set to line.Turn down the gain on your mixer.If there is no adjustment on the device, adjust the microphone level on the transmitter. Keep this level as high as possible without distortion.	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.Make note of your level settings before recording.
	The batteries are weak.	Replace the batteries in the transmitter or handheld transmitter.	Make sure to bring extra batteries with you.You should replace the batteries on every shoot.Rechargeable batteries will save money over time, and NiCd batteries generally have a long performance time.
The unit will not turn on.	The batteries are dead.	Replace the batteries in the proper unit. Make sure to bring extra batteries with you.
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.Check all cables to make sure they are completely plugged into the proper inputs.
	The line source is off or not playing back audio.	If you are transmitting a line-level signal, make sure there is audio coming out of the line-source device.
	The line-level input overrides the microphone input.	If you want to record via the microphone input, make sure there is nothing plugged into the line-level input.
There is no audio or the audio is intermittent. (Continued)	The audio levels are too low.	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.	Make sure the transmitter, handheld transmitter, receiver, and all other devices in your audio chain are turned on and configured to the proper settings.
Too much ambiance is being picked up.	The microphone may be picking up too much ambiance.	Make sure the microphone is as close as possible to the subject.	Approximately inches (15.2 cm) from the subject is usually good microphone placement, but you may need to experiment.

ONE-YEAR LIMITED WARRANTY

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. The warranty provider's responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider's discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment. Inoperability of the product or part(s) shall be determined by the warranty provider. If the product has been discontinued, the warranty provider reserves the right to replace it with a model of equivalent quality and function.

This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance. EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you with specific legal rights, and you may also have additional rights that vary from state to state.

To obtain warranty coverage, contact the Polsen Customer Service Department to obtain a return merchandise authorization ("RMA") number, and return the defective product to Polsen along with the RMA number and proof of purchase. Shipment of the defective product is at the purchaser's own risk and expense.

For more information or to arrange service, visit www.polsenaudio.com or call Customer Service at 212-594-2353.

Product warranty provided by the Gradus Group.

www.gradusgroup.com

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