If multiple counter loops are
required in close proximity, it
is possible that the ‘field’
generated by one system may
be picked up by a person who
is standing at the next. Adjust
the field strength and loop
shape to avoid this.
TYPICAL PDA103C 1.2m2COUNTER LOOP SYSTE
ULTIPLE
COUNTER LOOPS
PDA103C Kit Components
1 AFILS sticker: Position the sticker where it can be clearly seen by hearing aid users.
2
A T tie/desk
microphone
c/w 1.5m lead:
Position the microphone as close as possible to mouth height using
the self-adhesive pad (supplied). For best results position it no nearer
than 300mm and no further than 1.2m distance from the operator’s
mouth. Avoid mounting it near sources of unwanted noise, e.g. a
cooling fan, or a telephone.
3 Loop cable:
Fix the pre-formed TX2 counter loop (supplied) to the underside of
the counter, desk or table.
For best results in counter applications:
Bend the opened out ‘squared’ loop at a right angle half way down
its length. Secure half the square to the underside of the desk and
run the other half down the inside of the back vertical surface.
For best results in desk/table applications:
Secure the opened out ‘squared’ loop to the underside of the table
at the end nearest to the hearing aid user. Another option is to fit
the loop above a suspended ceiling. Again, position the loop so that
it is central to where the hearing aid user would naturally stand.
4Amplifier
location: Mount the amplifier to the side of the counter using suitable screws.
3
1
4
2
6 of 12 PDA103 Installation Instructions Approved Document No. DAU0000103 Rev 2
TYPICAL PDA103R 50m2S ALL ROO LOOP SYSTE (‘outreach’ mic. version)
2
1
4
3
PDA103R / PDA103L Kit Components
1 AFILS sticker: Position the sticker where it can be clearly seen by hearing aid users.
2
AP ‘outreach’
plated microphone
c/w Belden
connection cable:
For best results it should be mounted on a standard 25mm back
box, ideally on a suspended ceiling height of 2.5 to 3m although it
can also be surface-mounted. If mounting the microphone at
ceiling height, avoid positioning it too close to ventilators, or air
conditioning ducts. 6m of Belden cable is included for connecting
the APM to the amplifier.
3 Loop cable:
Run the loop cable horizontally around the perimeter of the room,
ideally located at ceiling height (e.g. above a suspended ceiling) or
tucked under the edge of a carpet, or fixed to skirting boards.
If installing a floor loop, ensure the loop cable is protected from
being crushed in walkways, or by furniture.
4 Amplifier location:
Surface-mount the amplifier using suitable mounting screws.
PDA103R only: To avoid unsightly connection leads, the amplifier
may be mounted above a suspended ceiling, particularly if a
ceiling loop is fitted to reduce wiring runs.
5
A T tie/desk
microphone
c/w 1.5m lead:
Position the microphone as close as possible to the user using the
self-adhesive pad (supplied). For best results position it no nearer
than 300mm and no further than 1.2m distance from the
operator’s mouth. Avoid mounting it near sources of unwanted
noise, e.g. a cooling fan, or a telephone.
7 of 12
TYPICAL PDA103L 50m2S ALL ROO LOOP SYSTE (tie/desk mic. version)
43
1
5
PDA103 Installation Instructions Approved Document No. DAU0000103 Rev 2
