Helpful Loop Info
We have a range of audio induction loop systems for public buildings to be DDA compliant for people who are hearing impaired.
Large induction loop system are suitable for churches, church halls, village halls ,law courts, masonic temples, schools, communal rooms, committee rooms, meeting rooms, residential rooms and all public buildings.
A simple induction loop system installation is well within the capability of most electrical or electronic trained individuals.
If you would like a DIY induction loop system for a church, village hall, meeting room etc it is quite straight forward providing you follow some basic guidelines.
What equipment do you need to install an induction loop system?
An induction loop amplifier, drum of loop cable, cable clips or tack
gun, at least one radio microphone (tie clip or hand held) and radio microphone receiver. All systems supplied by us come with the appropriate interconnection cables free of charge.
DIY induction loop system
Below is some information that will offer you the knowledge you require
to select components and install a DIY induction loop system.
DIY loop system guide
A typical set up of an induction loop system is to place the loop
amplifier as close as possible to the sound source. The loop amplifier
can be securely mounted on a wall closest to the sound source - for example, close
to the village hall stage or near/on top of the TV in the case of a home
loop.
The induction loop cable is fed around the room and clipped to the skirting board or hidden under the carpet edge if present. The induction loop cable is terminated at the loop output connections on the rear of the loop amplifier. With a stand alone audio induction loop system a microphone can be connected directly to the audio induction loop amplifier. With a combined Loop and Public Address System the loop is connecte to the Public Address System via the aux/line output socket. Audible sound reaching the microphone is converted into a small electrical signal and fed into the amplifier. The amplifier then amplifies this signal and feeds this around the room - through the loop cable as an alternating current (a.c.) signal. You will need to measure the room (make measurements and calculate in m2). You can then choose the correct size induction loop amplifier to suit the room size. You need to use an amplifier than will run with some in reserve for future expansion and in any event, it is good practice to keep an induction loop amplifier loaded to a maximum of 80-95% for greater reliability.
Commissioned DIY induction loop system
We offer a service whereby you can purchase all of the components
required for an induction loop system and install the system yourself.
You can arrange the installation to be done by a local qualified
electrician or even volunteers. Once the system has been installed we
can terminate and connect all connections, test the system, set it up to
the correct level and demonstrate how the system works to all members
of staff.
Supply and installation service
Before contacting us for our supply and installation service have a look
around your building and draw a simple sketch with measurements and
details of the following.
- length and width of the floor area to have the induction loop system
- position and size of a stage (if present)
- ceiling height and type
- door positions
- position of existing PA equipment (if present)
- available mains sockets
For our supply and installation service complete our Loop Estimate Form
to send us the information of the room details, your contact details
and some photographs of the venue. We can then send an estimate to you
by you email.
Induction loop amplifier inputs
Induction loop amplifiers have several inputs depending on the model.
This facilitates the connection of microphones, CD, iPod, Public Address
system with aux/line out etc.
Testing the loop level to British Standards
We recommend you hire our dual function induction loop test meter. This
meter measures magnetic background noise and induction loop output
level. Full instructions are included.
Uniear FSM - the field stength meter test instrument
A testing device should always be available where a loop is installed.
The person who is responsible for the venue can with a quick and simple
check make sure that the system is operational. A yellow or green LED
will indicate if the loop works corectly. Green indicates that the loop
fulfils the international standard IEC 60118-4 level requirement. A
yellow LED indicates that the loop is operational but does not meet the
IEC level requirement, but will still benefit the user. You may also
listen to the loop system through the speaker or earphones that connects
to the instrument's 3.5mm output.
Loop Listener gives a calibrated field strength measurement for speech according to IEC 60118-4 (125 msec, rms). Some high crest music material may give 1-2dB increased value.
Skype or Facetime ConsultancyYou may find it easier to talk to our consultant. He can advise on the type of equipment required for your venue and back this up with loop design PDF and estimate. Please contact us by email for this service (nominal fee applies).
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