Terratrip T036 User manual

Terraphone Professional Rally Intercom System
Main Features
•Automatic Volume Control - to prevent excessive volume in the headset
•Noise Reduction - to eliminate amplification of background noise
•Noise cancelling microphones - for improved sound reproduction
•2 way radio connection with speaker cut-off switch, mic level control and PTT socket
•Audio input for music (CD/mp3) or auxiliary source (GPS etc).
•Mobile phone connection with level selection to suit a wide range of phones
•Audio output socket to tape/mp3 recorder (to record pace notes) or connection to video camera
Switchable options to customise your Terraphone to your requirements
Headsets
•Full face and open face headset options.
•Practice headsets (without helmet), for crew communication on road sections or when preparing
pace notes.
Introduction
The Terratrip Terraphone Professional is an intercom system designed to allow communication between
both the driver and co-driver and allow connection to a variety of equipment for rally car racing or similar
sports.
Terratrip has engineered this model to provide greater audio quality and provide a better experience for
the user by eliminating background engine noise and preventing excessive sound levels in the headsets.
Additionally greater connectivity has been provided to accommodate the increasing use of mobile phones
and other audio devices in the car.
Thank you for purchasing this product, with care the unit should give you good service. Please read these
instructions carefully, by doing so you will get full use of the unit and save a great deal of frustration!
IMPORTANT NOTE: There are no customer serviceable parts in this unit. Damage may be caused if you
open the case. These units do not have an internal battery.
T036
Terraphone
Professional
Amplifier
TERRATRIP(UK) Ltd
Ship Farm, Horsley
DERBY. DE21 5BR
T +44 (0) 1332 880468
F +44 (0) 1332 882640
info@terratrip.com
www.terratrip.com

Fitting the headset parts to your helmet
Speakers – Carefully fit the speakers inside the helmet so that they align exactly with your ear canal.
The Velcro should stick to the helmet lining or if not you can glue or stitch the Velcro loop fabric in place.
Microphone (Full face helmets) – Fix the microphone on the inside of the chin guard of the helmet.
The microphone MUST NOT be more than 1cm from your lips.
Microphone (Open face) – Shape the microphone arm base to the shape of the helmet. Make sure that
there are no gaps between the microphone arm base and the helmet. Wipe the microphone arm base with
a cloth to remove any dust and make sure that the helmet is clean. Fasten the microphone arm base in
position on the helmet using the adhesive pad provided. The microphone MUST NOT be more than 1cm
from your lips. For right hand drive cars make sure that the driver’s microphone is fastened to the left
side of the helmet and the co-driver’s microphone is fastened to the right. (vice versa for left hand drive
cars).
All headsets IMPORTANT – The white clip should be fastened to the side of the helmet to alleviate
strain on the cables. If not used, premature failure of the headset may occur.
Fitting the Terraphone
Amplifier Unit – Mount the Terraphone amplifier between the driver and co-driver in a position so that
cables to the headsets do not obstruct operation of the vehicle and are kept clear of the steering wheel.
The unit should be fastened to a solid surface with the fixings provided. Connect the red wire to +12 volts
positive and connect the black wire to the battery negative. NOTE: It is recommended that both the red
and black wires are connected directly to the battery terminals to avoid interference and the cables
should NOT be run together with other vehicle wiring. Avoid proximity to pedals and other moving parts
and use cable grommets to avoid chaffing where cables pass through the bulkhead. You must fit the fuse
in the positive lead, directly after the positive terminal. The amplifier must only be used on negative
earth cars.
Using your Terraphone
Power switch – The right hand switch on the Professional model switches the unit on and off, push to
the left to switch on.
Volume controls – The right side volume control effects the overall volume to the right user and the left
volume control effects the overall volume to the left user. Set these controls individually to give a
comfortable level.
Automatic Volume Control – The Terraphone Professional is equipped with an automatic volume
control or “limiter”. This will raise normal speech levels to a constant level and prevent excessive volume
in the headset. This can be disabled if not required by switching off the DIP switch marked LIMITER on
the rear panel.
Noise Reduction - The Terraphone Professional is equipped with a noise reduction system that will
eliminate amplification of background engine noise. The threshold at which this discriminates between
background noise and your voice can be adjusted with the control on the rear panel marked NOISE
REDUCTION. Rotating this adjuster clockwise will require a higher speech level to activate the
microphone. Noise reduction can be disabled if not required by switching off the DIP switch marked N/R
on the rear panel.
Radio connection / Level setting – The 3.5mm jack socket on the back of the amplifier marked RADIO
can be connected to the output of your 2-way radio. (auxiliary radio leads can be purchased from
Terratrip or your local dealer). On this model the audio from the radio can be switched off when the left
switch marked “RADIO” is moved to the left. Adjust the amplifier for normal operating levels and then
set the radio volume control to give the required receive level in the headsets.

Transmit level setting - Make a call to another radio and confirm that your voice can be heard in the
remote radio. The level of your voice can be adjusted by inserting a screwdriver in the slot marked RADIO
TX LEVEL, this can be reduced if you voice is received at a particularly high or distorted level or it can be
increased if you voice is feint.
Radio PTT socket – The PTT (Press to talk) socket allows connection to a press to talk switch on a short
cord so that the radio can be set to transmit whilst connected to the Terraphone. PTT is disabled when
the speaker is switched off.
Audio output – . The 3.5mm socket marked AUDIO OUT on the rear of the amplifier can be connected to
a video or tape/mp3 recorder. The speech of both crew members can then be recorded along with any
auxiliary input.
Audio input – . The 3.5mm socket marked AUDIO IN on the rear of the amplifier can be connected to
auxiliary equipment such as MP3/GPS or CD player.
Mobile phone connection / Level setting – The 3.5mm jack socket on the back of the amplifier
marked MOBILE can be connected to your mobile phone. (Suitable leads and adapters can be purchased
from Terratrip or your local dealer). Adjust the amplifier for normal operating levels and then make a call
with your mobile and set the volume on the mobile to give the required level in the headsets. The small
“DIP” switch marked MOB OUT on the rear panel can be set to reduce or increase the received level if
required. A similar switch marked MOB IN can be used to set the microphone level INTO the mobile phone.
This can be switched ON to reduce the mic level if excessive background noise or distortion is heard at the
remote phone and should be left switched OFF if your voice is too feint.
We hope you enjoy your new Terratrip product, please contact Terratrip or your local dealer if you
require any help.
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