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freeU HT, freeU PT
UHF wireless system
user manual
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Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
E-mail: info@thomann.de
Internet: www.thomann.de
21.02.2017, ID: 405079, 405080, 405081, 405082, 405083, 405084
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Table of contents
1 General notes............................................................................................................................................... 5
1.1 Further information........................................................................................................................... 6
1.2 Notational conventions.................................................................................................................... 7
1.3 Symbols and signal words............................................................................................................... 8
2 Safety instructions.................................................................................................................................. 10
3 Features....................................................................................................................................................... 14
4 Installation and starting up................................................................................................................ 16
4.1 General Information........................................................................................................................ 16
4.2 Receiver............................................................................................................................................... 17
4.3 Handheld microphone (HT series)............................................................................................. 19
4.4 Bodypack transmitter (PT series)................................................................................................ 19
5 Connections and controls................................................................................................................... 21
5.1 Receiver............................................................................................................................................... 21
5.2 Handheld microphone................................................................................................................... 28
5.3 Bodypack transmitter..................................................................................................................... 31
Table of contents
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6 Operating.................................................................................................................................................... 34
6.1 Receiver............................................................................................................................................... 34
6.2 Bodypack transmitter..................................................................................................................... 35
7 Technical specifications....................................................................................................................... 37
7.1 Receiver............................................................................................................................................... 37
7.2 Handheld microphone................................................................................................................... 38
7.3 Bodypack transmitter..................................................................................................................... 40
8 Plug and connection assignment.................................................................................................... 42
9 Troubleshooting...................................................................................................................................... 45
10 Protecting the environment.............................................................................................................. 48
Table of contents
UHF wireless system
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1 General notes
This manual contains important instructions for the safe operation of the unit. Read and follow
the safety instructions and all other instructions. Keep the manual for future reference. Make
sure that it is available to all those using the device. If you sell the unit please make sure that
the buyer also receives this manual.
Our products are subject to a process of continuous development. Thus, they are subject to
change.
General notes
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1.1 Further information
On our website (www.thomann.de) you will find lots of further information and details on the
following points:
Download This manual is also available as PDF file for you to download.
Keyword search
Use the search function in the electronic version to find the topics of
interest for you quickly.
Online guides
Our online guides provide detailed information on technical basics
and terms.
Personal consultation For personal consultation please contact our technical hotline.
Service
If you have any problems with the device the customer service will
gladly assist you.
General notes
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1.2 Notational conventions
This manual uses the following notational conventions:
The letterings for connectors and controls are marked by square brackets and italics.
Examples: [VOLUME] control, [Mono] button.
Texts and values displayed on the device are marked by quotation marks and italics.
Examples: ‘24ch’ , ‘OFF’.
Letterings
Displays
General notes
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The individual steps of an instruction are numbered consecutively. The result of a step is
indented and highlighted by an arrow.
Example:
1. Switch on the device.
2. Press [Auto].
ð
Automatic operation is started.
3. Switch off the device.
1.3 Symbols and signal words
In this section you will find an overview of the meaning of symbols and signal words that are
used in this manual.
Instructions
General notes
UHF wireless system
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Signal word Meaning
DANGER! This combination of symbol and signal word indicates an
immediate dangerous situation that will result in death or
serious injury if it is not avoided.
NOTICE! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in material and
environmental damage if it is not avoided.
Warning signs Type of danger
Warning – danger zone.
General notes
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2 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.
Intended use
Safety instructions
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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.
Safety
Safety instructions
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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.
Safety instructions
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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.
Safety instructions
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3 Features
The UHF wireless system is particularly suitable for professional audio transmission, for
example, at events, on rock stages and in concert halls, theatres, musicals or night clubs.
The UHF Wireless System freeU HT is comprised of the following components:
n 9.5" Diversity receiver
– Two antennas for optimum reception quality
– Infrared interface for sending the frequency selection from the receiver to the trans‐
mitter
– Outputs: XLR, 1/4" phone socket
– solid metal housing, 9.5" rack mountable (1 RU)
– Power supply: AC 12 V
n Transmitter: battery powered handheld super cardioid microphone
n Two antennas, a suitable power supply, an installation kit for the rack mounting of a
receiver and a microphone holder are included
Features
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The UHF Wireless System freeU PT is comprised of the following components:
n 9.5" Diversity receiver
– Two antennas for optimum reception quality
– Infrared interface for sending the frequency selection from the receiver to the trans‐
mitter
– Outputs: XLR, 1/4" phone socket
– solid metal housing, 9.5" rack mountable (1 RU)
– Power supply: AC 12 V
n Transmitter:
– battery powered bodypack transmitter
n Two antennas, a suitable power supply, an installation kit for the rack mounting of a
receiver and a microphone holder are included
Features
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4 Installation and starting up
4.1 General Information
Unpack and carefully check that 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.
Create all connections while the device is off. Use the shortest possible high-quality cables for
all connections. Take care when running the cables to prevent tripping hazards.
Installation and starting up
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n This device 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.
For more information, please visit: http://www.thomann.de.
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 or in-ear systems.
4.2 Receiver
The unit has been designed for rack mounting in a standard 9.5" rack; it occupies one rack unit.
Two receivers can be installed side-by-side in 19" racks. The fixing material required for
assembly is included.
Notes on wireless transmission
Rack mounting
Installation and starting up
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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 power adapter to the receiver and then plug the power adapter into the
power outlet.
Attach the included antennas to the rear panel of the transmitter. To improve the transmission
quality and to adapt to the spatial conditions they are rotatable and swivelling.
In case the space provided on the device for direct assembly of the antennas is not sufficient,
for example because the space on the rack is narrow, you can use the optionally available
coaxial cable to assemble the antennas separately from the device.
Connecting the power supply
Attaching the antennas
Installation and starting up
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Connect one of the audio outputs of the receiver to your mixer or your amplifier. Ensure that
only one of the two outputs is ever used at a time, because faults might occur otherwise.
4.3 Handheld microphone (HT series)
Unscrew the bottom housing section of the hand-held microphone. Insert the batteries. Pay
attention to the correct location of the poles. The correct arrangement of the batteries is indi‐
cated with symbols in the battery compartment. Close the battery compartment, screw the
bottom housing section back on, and switch the transmitter on.
4.4 Bodypack transmitter (PT series)
Squeeze the battery compartment lid, flip it open and and insert the batteries. Pay attention to
the correct location of the poles. Close the battery compartment and switch the transmitter
on.
Connecting audio and starting
up
Inserting batteries
Inserting batteries
Installation and starting up
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n Ensure that the transmitter is switched off.
n Connect the microphone or instrument cable to the input on the transmitter (mini-XLR
panel connector).
n Turn on the transmitter and check the transmission by using the microphone or instru‐
ment. If necessary, adjust the amplification of the transmitter and the levels on your
mixing console or your amplifier.
Connecting microphone of
instrument
Installation and starting up
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5 Connections and controls
5.1 Receiver
Front panel
Connections and controls
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1 [POWER]
Press the switch to switch the device on or off.
All previous settings are retained even when you switch the device off and disconnect it from the mains.
2 Display
3 [IR]
Infrared sensor
4
Increases the displayed value by one.
5 [SET]
Opens the menu.
6
Decreases the displayed value by one.
Connections and controls
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7 [VOLUME]
Volume control to adjust the audio output level.
11 UHF antenna
Connections and controls
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8 [DC INPUT 12-18V]
Socket for connecting the supplied AC power supply. If you are using a different power supply, observe the correct
voltage, the polarity of the plug and the power consumption.
9 [UNBALANCED OUTPUT]
1/4" phone socket as unbalanced audio signal output for direct connection to a mixer, a power amplifier or recording
device.
Rear panel
Connections and controls
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10 [BALANCED OUTPUT]
Male XLR panel connector as symmetrical audio signal output for direct connection with a mixer, a power amplifier,
or a recording device.
11 [ANT A], [ANT B]
UHF antenna connections.
Connections and controls
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12 [AF]
Level display for the audio signal.
13 [RF]
Level indicator for the received radio signal.
14 [GROUP]
Indicates the selected frequency group.
15 [CHANNEL]
Indicates the selected channel.
16 [IR]
Indicates data transfer via infrared interface.
Display
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17 [ANT-A], [ANT-B]
Shows which of the two antennas is currently being used for signal transmission.
18 [FREQ]
Indicates the frequency that is assigned to the set combination of frequency group
and channel.
Connections and controls
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5.2 Handheld microphone
Connections and controls
UHF wireless system
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21 Display
22 Microphone head grill to prevent damage and to reduce wind and breath noise.
23 Infrared sensor
24 Main switch
Slide the switch all the way forward to turn on the microphone. Slide it all the way back to turn it off. Set the switch to
the centre position to mute the microphone.
25 Lower housing part. Unscrew to open.
26 Indicating the frequency range in which the device operates. The specification here must match the specification
printed on the back of the receiver.
27 Battery holder for two round cell batteries (AA, LR06), 1.5 V or comparable rechargeable batteries.
Connections and controls
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28 Battery level indicator. Replace the batteries when only one blinking bar remains
displayed. Reduces the voltage of the batteries even further if the transmitter is
automatically switched off.
29 [GROUP]
Indicates the selected frequency group.
30 [CHANNEL]
Indicates the selected channel.
31 [IR]
Indicates data transfer via infrared interface.
32 Indicates the set frequency that is assigned to the set combination of frequency
group and channel.
Display
Connections and controls
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5.3 Bodypack transmitter
Connections and controls
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41 Display
42 Antenna
43
Increases the displayed value by one.
44
Opens the menu.
45
Decreases the displayed value by one.
46 [IR]
Infrared sensor
47 Battery holder for two round cell batteries (AA, LR06), 1.5 V or comparable rechargeable batteries.
48 Mini-XLR panel connector for connecting a microphone or instrument.
49 Volume control
Connections and controls
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50 Main switch
Press the switch for several seconds to switch the device on or off.
51 Retaining clamp
52, 53,54[NAME], [BANK], [CH]
No function.
55 [FREQ]
Indicates the set frequency that is assigned to the set combination of frequency
group and channel.
56 Battery level indicator. Replace the batteries when only one blinking bar remains
displayed. Reduces the voltage of the batteries even further if the transmitter is
automatically switched off.
Display
Connections and controls
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6 Operating
6.1 Receiver
1.
Press .
ð
The [GROUP] display flashes.
2. Use the arrow keys to select the frequency group.
Press to confirm the selection.
ð
The [CHANNEL] display flashes.
3. Use the arrow keys to select a channel within the set frequency group.
Press to confirm the selection.
ð
The [PO.x] display flashes.
4. Use the arrow buttons to select the level for the radio signal in a range from 5 mW (PO.1)
to 30 mW (PO.4) (this option is omitted for the t.bone freeU HT 863 and the t.bone freeU
PT 863) .
Selecting frequency
Operating
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Press to confirm the selection.
ð
The settings are complete.
1. Turn on the transmitter and open it to uncover the infrared sensor.
2.
Press at the receiver for several seconds. The display [IR] flashes.
3. Turn the transmitter off and then straight away back on again. Within ten seconds, hold
the infrared sensor of the transmitter near the infrared interface of the receiver.
4. When synchronization has been successfully completed, the [IR] indicator stops flashing
and the level display [RF] shows a high transmission level.
ð
After three seconds, the display shows the default state again.
6.2 Bodypack transmitter
The keys for operating the device are located under the flap on the front side.
Synchronizing transmitter and
receiver
Operating
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If you don't want to synchronize the transmitter with the receiver using the infrared interface,
you can also set the transmission frequency manually.
1. Press [SET] until the numeric value flashes in the display.
2. Use the arrow buttons to select the frequency.
Press [SET] to confirm the selection.
Select frequency
Operating
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7 Technical specifications
7.1 Receiver
Output XLR chassis plug, balanced
1/4" phone socket (unbalanced)
Sensitivity –110 dBm
NF frequency response
60 Hz…17 kHz (±3 dB)
THD < 0.5 % (1 kHz)
Signal-to-noise ratio > 105 dB (A) (–60 dBm)
Dynamic range > 100 dB
Voltage supply
Power adapter (12 V – 18 V / 500 mA )
Dimensions (W × H × D, without antennas) 210 mm × 44 mm × 170 mm
Weight 910 g
Technical specifications
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Carrier frequency, frequency band, number of channels, bandwidth, switching bandwidth and
modulation type correspond to those of the transmitter.
7.2 Handheld microphone
Carrier frequency UHF band (600 MHz…952 MHz)
Frequency band the t.bone freeU HT 600 (item no. 405081): 606 MHz…630 MHz
the t.bone freeU HT 823 (item no. 405079): 823 MHz…832 MHz
the t.bone freeU HT 863 (item no. 405083): 863 MHz…865 MHz
Bandwidth the t.bone freeU HT 600 (item no. 405081): 14 MHz
the t.bone freeU HT 823 (item no. 405079): 19 MHz
the t.bone freeU HT 863 (item no. 405083): 2 MHz
Number of channels the t.bone freeU HT 600 (item no. 405081): 100 (10 pre-programmed frequency
groups, each with 10 channels available)
Technical specifications
UHF wireless system
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the t.bone freeU HT 823 (item no. 405079): 100 (10 pre-programmed frequency
groups, each with 10 channels available)
the t.bone freeU HT 863 (item no. 405083): 16 (4 pre-programmed frequency
groups, each with 4 channels available)
Modulation type Frequency modulation (FM)
Maximum transmission power 10 mW
Spurious response rejection ratio > 55 dBc
Peak deviation ± 48 kHz
Voltage supply 2 AA cells (LR6, 1.5 V) or corresponding rechargeable batteries
Operating time > 10 h (with alkaline cells)
Dimensions (L × D) 265 mm × 65 mm
Weight (without batteries) 375 g
Technical specifications
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7.3 Bodypack transmitter
Carrier frequency UHF band (600 MHz…952 MHz)
Frequency band the t.bone freeU PT 600 (item no. 405082): 606 MHz…630 MHz
the t.bone freeU PT 823 (item no. 405080): 823 MHz…832 MHz
the t.bone freeU PT 863 (item no. 405084): 863 MHz…865 MHz
Bandwidth the t.bone freeU PT 600 (item no. 405082): 14 MHz
the t.bone freeU PT 823 (item no. 405080): 19 MHz
the t.bone freeU PT 863 (item no. 405084): 2 MHz
Number of channels the t.bone freeU PT 600 (item no. 405082): 100 (10 pre-programmed frequency
groups, each with 10 channels available)
the t.bone freeU PT 823 (item no. 405080): 100 (10 pre-programmed frequency
groups, each with 10 channels available)
the t.bone freeU PT 863 (item no. 405084): 16 (4 pre-programmed frequency
groups, each with 4 channels available)
Technical specifications
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Modulation type Frequency modulation (FM)
Maximum transmission power 10 mW
Peak deviation ± 48 kHz
Voltage supply 2 AA cells (LR6, 1.5 V) or corresponding rechargeable batteries
Operating time > 10 h (with alkaline cells)
Dimensions (W × H × D, without antennas) 63 mm × 110 mm × 21 mm
Weight (without batteries) 88 g
Technical specifications
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8 Plug and connection assignment
This chapter will help you select the right cables and plugs to connect your valuable equip‐
ment in such a way that a perfect sound experience is ensured.
Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a
plug fits into the socket, an incorrect connection may result in a destroyed power amp, a short
circuit or ‘just’ in poor transmission quality!
Unbalanced transmission is mainly used in semi-professional environment and in hifi use.
Instrument cables with two conductors (one core plus shielding) are typical representatives of
the unbalanced transmission. One conductor is ground and shielding while the signal is trans‐
mitted through the core.
Unbalanced transmission is susceptible to electromagnetic interference, especially at low
levels, such as microphone signals and when using long cables.
In a professional environment, therefore, the balanced transmission is preferred, because this
enables an undisturbed transmission of signals over long distances. In addition to the conduc‐
tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers
the signal, but phase-shifted by 180°.
Introduction
Balanced and unbalanced trans‐
mission
Plug and connection assignment
UHF wireless system
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Since the interference affects both cores equally, by subtracting the phase-shifted signals, the
interfering signal is completely neutralized. The result is a pure signal without any noise inter‐
ference.
1 Signal
2 Ground, shielding
1 Signal (in phase, +)
2 Signal (out of phase, –)
3 Ground
1/4" TS phone plug (mono,
unbalanced)
1/4" TRS phone plug (mono, bal‐
anced)
Plug and connection assignment
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1 Ground, shielding
2 Signal (in phase, +)
3 Signal (out of phase, –)
1 Ground
2 Positive signal (+)
3 Negative signal (–)
XLR plug (balanced)
Mini XLR
Plug and connection assignment
UHF wireless system
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9 Troubleshooting
In the following we list a few common problems that may occur during operation. We give you
some suggestions for easy troubleshooting:
Troubleshooting
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Symptom Remedy
No sound 1. Check the power supply of the transmitter and receiver.
2. Make sure that both transmitter and receiver operate in the same frequency
range. The frequency range is stated on the devices.
3. Are both transmitter and receiver set to the same channel?
4. Check the connection between the receiver and the connected audio device
(amp, mixer). Is the connected audio device switched on and does the signal
level on the output of the receiver match the input sensitivity of the audio
device?
5. Try to improve the transmission by moving the transmitter closer to the
receiver.
6. Make sure that no metal objects near the transmitter or receiver obstruct the
transmission.
Transmission is disturbed 1. Modify the orientation of the antennas.
2. If you use more than one wireless system at the same time, check the used
frequencies and channels.
3. Interference can also be caused by other radio or in-ear systems.
Troubleshooting
UHF wireless system
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If the procedures recommended above do not succeed, please contact our Service Center. You
can find the contact information at www.thomann.de.
Troubleshooting
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10 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.
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.
Disposal of the packaging mate‐
rial
Disposal of batteries
Protecting the environment
UHF wireless system
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This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE). Do not dispose 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.
Disposal of your old device
Protecting the environment
freeU HT, freeU PT
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Notes
UHF wireless system
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Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de
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