thomann TWS 16 GT User Manual

TWS 16 GT

UHF wireless system

user manual

Musikhaus Thomann e.K.
Treppendorf 30
96138 Burgebrach
Germany
Telephone: [phone]
email: [e-mail]
Internet: www.thomann.de

12.03.2012

Table of contents

Table of contents

1 Safety instructions..................................................................................................................................... 4

2 Features and scope of delivery........................................................................................................... 8

3 Installation and starting up................................................................................................................ 10

3.1 General information........................................................................................................................ 10

3.2 Receiver............................................................................................................................................... 12

3.3 Transmitter......................................................................................................................................... 17

4 Components and functions................................................................................................................ 20

4.1 Receiver............................................................................................................................................... 20

4.2 Transmitter......................................................................................................................................... 24

5 Troubleshooting...................................................................................................................................... 26

6 Technical specifications....................................................................................................................... 28

6.1 Receiver............................................................................................................................................... 28

6.2 Transmitter......................................................................................................................................... 30

6.3 Frequency charts.............................................................................................................................. 32

7 Protecting the environment.............................................................................................................. 34

TWS 16 GT

3

Safety instructions

1

Intended use

Safety instructions

This device is intended to be used for the wireless transmission of audio signals from micro‐
phones or instruments to amplifiers or active speakers. Use the device only as described in this
user manual. Any other use or use under other operating conditions is considered to be
improper and may result in personal injury or property damage. No liability will be assumed for
damages resulting from improper use.

This device may be used only by persons with sufficient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.

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Safety

Safety instructions

DANGER!
Danger for children

Ensure that plastic bags, packaging, etc. are disposed of properly and are not
within reach of babies and young children. Choking hazard!

Ensure that children do not detach any small parts (e.g. knobs or the like) from
the unit. They could swallow the pieces and choke!

Never let children unattended use electrical devices.

NOTICE!
Operating conditions

This device has been designed for indoor use only. To prevent damage, never
expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and
strong vibrations.

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5

Safety instructions

NOTICE!
External power supply

The device is powered by an external power supply. Before connecting the
external power supply, ensure that the input voltage (AC outlet) matches the
voltage rating of the device and that the AC outlet is protected by a residual cur‐
rent circuit breaker. Failure to do so could result in damage to the device and pos‐
sibly the user.

Unplug the external power supply before electrical storms occur and when the
device is unused for long periods of time to reduce the risk of electric shock or
fire.

NOTICE!
Risk of fire due to incorrect polarity

Incorrectly inserted batteries may destroy the device or the batteries.
Ensure that proper polarity is observed when inserting batteries.

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Safety instructions

NOTICE!
Possible damage by leaking batteries

Leaking batteries can cause permanent damage to the device.
Take batteries out of the device if it is not going to be used for a longer period.

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7

Features and scope of delivery

2

the t.bone TWS 16 GT 863 MHz
(item no. 231529)

Features and scope of delivery

The UHF wireless system TWS 16 GT is ideal for professional audio transmission, for example, at
events, on rock stages and concert halls, in theatres and musicals, or in nightclubs.

Your UHF wireless system TWS 16 GT has the following components:

n 9.5" diversity receiver DS16R

– Adjustable squelch
– Two antennas for optimum reception quality
– Very high sensitivity at a very high signal-to-noise ratio
– Outputs: XLR, 1/4" socket
– 9.5" or 19" rack mounting (side by side with a second TWS 16 receiver)
– Operating voltage supply: DC 12 V

n Plug-on guitar transmitter

The system operates in one of 15 switchable channels (within a range of 863.125 MHz…

864.875 MHz). Three systems can be operated simultaneously.
Included accessories: 12 V power supply, hardware for rack mounting, cable with two 1/4"

jacks, windscreen.

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Features and scope of delivery

the t.bone TWS 16 GT 821 MHz
(item no. 273717)

Your UHF wireless system TWS 16 GT has the following components:

n 9.5" diversity receiver DS16R

– Adjustable squelch
– Two antennas for optimum reception quality
– Very high sensitivity at a very high signal-to-noise ratio
– Outputs: XLR, 1/4" socket
– 9.5" or 19" rack mounting (side by side with a second TWS 16 receiver)
– Operating voltage supply: DC 12 V

n Plug-on guitar transmitter

The system operates in one of 16 switchable channels (within a range of 821.725 MHz…

831.450 MHz). Four systems can be operated simultaneously.
Included accessories: 12 V power supply, hardware for rack mounting, cable with two 1/4"

jacks, windscreen.

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9

Installation and starting up

3

3.1

Installation and starting up

General information

Unpack and check carefully there is no transportation damage before using the unit. Keep the
equipment packaging. To fully protect the device against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.

Establish all connections as long as the unit is switched off. Use the shortest possible high­quality cables for all connections.

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Installation and starting up

Notes on wireless transmission

n This devices utilizes frequencies that are not harmonized within the European Union (EU)

and therefore may only be used in certain EU member states. In all European countries, the
frequencies used for the transmission of audio signals are strictly regulated. Before you
start, make sure the frequencies are allowed in the respective country and check whether
the operation must be reported to the appropriate authority.

n Make sure that transmitter and receiver are both tuned to the same channel.
n Never set multiple transmitters to the same channel.
n Make sure that there are no metal objects between the transmitter and receiver.
n Avoid interference from other radio systems, television or radio sets.

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Installation and starting up

3.2

Receiver

XLR connectors for signal
output on the receiver

The receiver offers a XLR mounting plug for signal output. Drawing and table indicate the XLR
pin assignment (balanced).

1 Ground, shielding
2 Positive signal (+)
3 Negative signal (–)

12

UHF wireless system

1/4" phone socket for signal
output on the receiver

Installation and starting up

The receiver offers a 1/4" mono phone socket for signal output. Drawing and table indicate the
pin assignment for a suitable TS jack.

1 Signal
2 Ground, shielding

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Installation and starting up

Rack mounting

This device is designed for 9.5" rack mounting, it occupies 1 rack unit. The required mounting
hardware is included.

Two units can be mounted side by side in a 19" rack slot. Connect both units using the sup‐
plied connecting brackets as shown in the drawing below.

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Installation and starting up

TWS 16 GT

15

Installation and starting up

Connecting the supply voltage

NOTICE!
External power supply

The device is powered by an external power supply. Before connecting the
external power supply, ensure that the input voltage (AC outlet) matches the
voltage rating of the device and that the AC outlet is protected by a residual cur‐
rent circuit breaker. Failure to do so could result in damage to the device and pos‐
sibly the user.

Unplug the external power supply before electrical storms occur and when the
device is unused for long periods of time to reduce the risk of electric shock or
fire.

First connect the AC adaptor to the receiver and then plug the adaptor into the outlet.

16

UHF wireless system

Installation and starting up

Hooking up audio connections
and starting up

Transmitter

3.3

1/4" phone jack for signal input
on the transmitter

Connect one of the audio outputs of the receiver to your mixer or amplifier. Make sure that
only one of the two outputs of the receiver is used at the same time. Otherwise, interferences
can by caused.

First adjust the volume control (6) as follows:

n If you use a microphone input of your mixer, turn the knob to about 1 o'clock. The audio

level at the output sockets will be about 77 mV.

n If you use a line input of your mixer, turn the knob clockwise to the right stop. The audio

level at the output sockets will be about 770 mV.

In order to achieve optimal sound quality, a fine adjustment may be required.

Drawing and table show the pin assignment of a 1/4" TS phone jack (mono).

TWS 16 GT

17

Installation and starting up

1 Signal
2 Ground, shielding

Inserting batteries into the
transmitter

18

Open the lid of the battery compartment (19) by pressing the highlighted tab ‘PUSH’ and
insert the battery. Pay attention to the correct polarity. Close the battery compartment and
turn on the transmitter. The LED "LOW BATT" flashes briefly.

UHF wireless system

Installation and starting up

Connecting the instrument to
the transmitter

n Make sure that the transmitter is switched off, the main switch (14) is in ‘OFF’ position.
n Adjust the amplification to a mid value using the ’GAIN’ control (18). Use a suitable screw‐

driver.

n Insert the 1/4" phone jack into the output of your instrument.
n Turn the transmitter on and test the transmission by playing the instrument. If necessary,

adjust the amplification of the transmitter (using the ‘GAIN’ control) and the levels on your
mixer or your amp.

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Components and functions

4

4.1

Components and functions

Receiver

Front panel

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Components and functions

1 POWER

Main switch to turn the device on and off.
2 This indicator lights up red when the unit is turned on and operational.
3 CH

Rotary control to select a channel 1 to 16
4 AF

This indicator lights up red when an audio signal is received.
5 RF LEVEL

These LEDs indicate the strength of the received carrier signal. The more LEDs light up, the better is the reception. If

no LED is lit no signal is received.
6 VOLUME

Use this control to adjust the output level of the two audio outputs on the rear panel.

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21

Components and functions

Rear panel

22

UHF wireless system

Components and functions

7 Tuned UHF antennas. The receiver evaluates the radio signal from both antennas and selects the signal with the

highest quality for further processing.
8 AUDIO OUTPUT – BALANCED

XLR mounting plug as balanced audio output for the direct connection to a mixing console, power amp, or recording

device
9 AUDIO OUTPUT – UNBALANCED

1/4" phone socket as unbalanced audio output for the direct connection to a mixing console, power amp, or

recording device

10 LINE/MIC

Switch for adjusting the levels of the audio outputs. Select the ‘–0dBV’ position when connecting the audio output of

the unit to a line level input. Select the ‘–20dB’ position when connecting the audio output to a mic level input.

11 SQUELCH

Use this control to set the threshold for the squelch. Note: Setting the threshold too high will reduce the dynamic of

the system.

12 DC INPUT

Connect the supplied wall plug transformer to this socket. If you want to use a different power supply you have to

consider the correct voltage, polarity of the plug, and the power consumption.

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Components and functions

4.2

Transmitter

Front panel

24

UHF wireless system

Components and functions

13 Antenna
14 ON/MUTE/OFF

Main switch. Either to turn the device on and off or to mute it.

15 LOW BATT

Shows the charging level of the battery. If you turn on the transmitter, the LED briefly lights up and indicates that the

battery supplies a sufficient voltage. If the LED is lit continuously, the battery is depleted. In this case, the battery

should be changed, or -if applicable- recharged.

16 GAIN

Rotary control to adjust the input sensitivity to the level of the input signal

17 1/4" phone jack (mono) to be connected to your instrument
18 CHANNEL

Rotary control to select a channel 1 to 16

19 Velcro closure. If you affix the self-adhesive counterpart to your instrument, you can easily attach the transmitter to it.
20 Battery compartment for one micro battery (AAA, LR03), 1.5 V or rechargeable battery

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25

Troubleshooting

5

Symptom Remedy

No sound 1. Check the operating voltage supply of transmitter and receiver.

Troubleshooting

Following we list a few common problems that may occur during operation. We give you some
suggestions for easy troubleshooting:

2. Make sure that transmitter and receiver operate within the same frequency
range. The respective frequency range is indicated on the units.

3. Are both transmitter and receiver set to the same channel?

4. Check the connection between the receiver and the connected audio device
(amplifier, mixer). Is the connected audio device turned on and is the output
level of the receiver well adjusted for the audio input device?

5. Try to improve the transmission by moving the transmitter closer to the
receiver. Maybe the ‘SQUELCH’ controller is set too high.

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Troubleshooting

Symptom Remedy

6. See if any metal parts near the transmitter or receiver interfere with the trans‐
mission.

Transmission is disrupted 1. Change the orientation of the antennas.

2. If you use more than one wireless system at the same time, control the fre‐
quencies and channels used. The systems should work within separate fre‐
quency ranges.

3. Also televisions, radios, or mobile phones can cause interference.

Sound is distorted Change the setting of the ‘VOLUME’ controller on the receiver.

If the procedures recommended above do not succeed, please contact our Service Center. You
can find the contact information at www.thomann.de.

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27

Technical specifications

6

6.1

Output XLR mounting plug, balanced

Carrier frequency
Modulation type Frequency modulation (FM)
Oscillator PLL synthesizer, 15 or 16 channels, depending on model version
Intermediate frequency 1: 243.95 MHz; 2: 10.7 MHz
Frequency stability
Signal-to-noise ratio
Normal deviation
Image and spurious rejection 80 dB min.

Technical specifications

Receiver

1/4" phone socket, unbalanced
UHF band (518…928 MHz)

± 0.005 %
> 94 dB, @ 48 kHz deviation and 60 dBµV from antenna input
± 20 kHz

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Technical specifications

Input sensitivity
Selectivity > 50 dB
Pilot tone 32.768 kHz
Audio frequency response
THD < 1 %
Dynamic range > 96 dB
Operating voltage DC 12 V
Dimensions (W × D × H, w/o antennas) 210 mm × 189 mm × 50 mm
Weight 515 g

8 dBµV

50 Hz…15 kHz (±3 dB)

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Technical specifications

6.2

Transmitter

Input 1/4" phone jack
Carrier frequency
Modulation type Frequency modulation (FM)
Oscillator PLL synthesizer, 16 channels
Transmission power 10 mW max.
Frequency stability
Normal frequency deviation
Spurious emission > 60 dB below carrier frequency
THD < 1 %
Pilot tone 32.768 kHz
Voltage supply 1 micro (AAA, LR03, 1.5 V) or rechargeable battery
Current draw

UHF band (518…928 MHz)

±0,005 %
±20 kHz

130 mA ±10 mA

30

UHF wireless system

Dimensions (W × D × H, w/o antenna) 40 mm × 23 mm × 85 mm
Height with antenna 150 mm
Weight (w/o batteries) 35 g

Technical specifications

TWS 16 GT

31

Technical specifications

6.3

Frequency charts

the t.bone TWS 16 GT 863 MHz (Article no. 231529)

Channel Frequency (MHz) Channel Frequency (MHz)

1 863.125 9 863.250
2 863.375 10 863.500
3 863.625 11 863.750
4 864.000 12 864.125
5 864.250 13 864.375
6 864.500 14 864.625
7 864.750 15 864.875
8 864.875

32

UHF wireless system

Technical specifications

the t.bone TWS 16 GT 821 MHz (Article no. 73717)

Channel Frequency (MHz) Channel Frequency (MHz)

1 821.725 9 827.300
2 822.250 10 827.825
3 822.925 11 828.525
4 823.375 12 828.925
5 823.950 13 829.475
6 824.850 14 829.875
7 825.450 15 830.975
8 826.525 16 831.450

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33

Protecting the environment

7

Disposal of the packaging mate‐
rial

Disposal of your old device

Protecting the environment

For the transport and protective packaging, environmentally friendly materials have been
chosen that can be supplied to normal recycling.

Ensure that plastic bags, packaging, etc. are properly disposed of.
Do not just dispose these materials with your normal household waste, but make sure that

they are fed to a recovery. Please follow the notes and markings on the packaging.

This device is subject to the European directive 2002/96/EC. Do not dispose the device with
your normal household waste.

Dispose this device through an approved waste disposal firm or through your local waste
facility. When discarding the device, comply with the rules and regulations that apply in your
country. If in doubt, consult your local waste disposal facility.

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34

Disposal of batteries

Protecting the environment

Batteries must not be disposed of as domestic waste or thrown into fire. Dispose of the bat‐
teries according to national or local regulations regarding hazardous waste. To protect the
environment, dispose of empty batteries at your retail store or at appropriate collection sites.

TWS 16 GT

35

Notes

36

UHF wireless system

Notes

TWS 16 GT

37

Notes

38

UHF wireless system

Musikhaus Thomann e.K. · Treppendorf 30 · 96138 Burgebrach · Germany · www.thomann.de