Satellite
III Induction Loop Assistive Listening System -- Spec Sheet
Click here for information on how
induction loop assistive listening systems work. The Satellite III
system contains the following components:
- One Satellite III loop amplifier with built in 2 space rack
mount
- One 500 foot spool of 14 gauge loop wire . Specify your
preference for black or white wire.
- One Induction Loop Receiver
with
headphones & LED signal display
- One phono plug patch cord
- One wall mountable sign
- Instructions
The
Satellite III is designed to interface with existing public address
systems and is our most popular and cost effective large area induction
loop assistive listening system. It is often used in houses of
worship,
libraries, auditoriums and theatres, providing coverage of up to
300-325
feet in perimeter. In the event larger areas need to be looped,
multiple
Satellite III systems may be linked, with each system covering no
larger
than a 300-325 foot perimeter area. Alternatively, two Satellite
III amplifiers may be bridged enabling powering of a loop perimeter up
to 500 feet (click here for details on the Satellite
III bridging
feature).
The Satellite III is compatible
with all telecoil-equipped hearing aids, cochlear implants and
induction
loop receivers. (Click on photo to view enlarged
image.)
The Satellite III amplifier is designed to be free standing or
rack
mounted using its built in 2 space rack mount. The amplifier
should
not be placed near a heat source. At least 1 rack space above and
below the amplifier is necessary to permit adequate air circulation.
The Satellite III may be interfaced with any audio line level
signal
available from the sound system mixer/mixer-amplifier.
Appropriate
outputs are usually identified as “line” or “auxiliary output.”
Use
of the Satellite III amplifier’s unbalanced phono input jack is
recommended
for most installations where the sound system signal feed is short
(less
than 5 feet). If the signal feed is longer, the balanced input
should
be used to minimize noise.
<>The area to be looped with each Satellite III should not
exceed 300-325
feet in perimeter. The loop wire must fully encompass the listening
areas.
The Satellite III system is supplied with a spool of 500 feet of high
quality
14 gauge stranded wire. The extra wire is provided to allow for
connecting
the loop to the amplifier.
>
IMPORTANT
LOOP WIRE INSTALLATION
INFORMATION:
This
loop system includes a 500 foot spool of 14 gauge single conductor
stranded
wire (black or white color may be specified). The
actual perimeter of the area to be looped should not exceed
325 feet per loop system
unless a dual amplifier bridged system is
used.
The total
14 gauge run of a
single loop amplifier wire + lead in should be at least 300
feet so as to present the proper minimum load to the amplifier. If longer lead in wire is needed (exceeding
what is available on the 500 foot spool), it should be 10 gauge in
order to
minimize signal losses.
When looping
smaller areas, multiple series loop
runs must be installed, for example, two turns around a 150 foot
perimeter
area. A two turn series loop will result
in a 3 dB boost in the signal strength. Please
note: Installing a “two turn series
loop” means running the loop wire once around, and then continuing
around the
perimeter one more time. Alternatively,
please request information on changing the loop wire gauge.
Satellite III Technical Specifications
Inputs & Outputs:
- Two unbalanced paralleled phono jack line inputs, 10-100k
Ohms
impedance,
250-500mv input
- One balanced screw terminal input, 600 Ohms impedance
- Two screw terminal loop wire outputs, 1 and 8 Ohms (1 Ohm
for supplied
wire)
- One push-terminal 1 Ohm loop wire output for temporary
(e.g. portable)
applications
- Amplifier: 11.5 amps output @ 1 kHz into 1 Ohm load
Controls & Visual Signal Indicators:
- Volume
- Adjustable non-distorting peak limiter
- Adjustable high frequency equalization (on rear panel)
- LED peak clipping indicator
Field Strength:
Minimum 100 milliamperes/meter as measured 39” above the center of
a 300 foot circumference 14 gauge loop wire as per IEC 118-4
specifications
Frequency Response:
Equalized response of loop system is in accordance with IEC 118-4
frequency
response specification: 100 Hz – 5 kHz +/- 3dB
Loop Wire:
500’ of high quality 14 gauge (3/32” O.D.) single conductor stranded
wire is provided to allow for connection to actual loop that should not
exceed 300-325 foot perimeter. Specify your preference for black or
white wire.
Click here for information on bridging two
Satellite III amplifiers to
cover larger areas.
Power:
115-120V AC, 2 amps/230 Watts (220-240V versions available for export)
Amplifier Dimensions & Weight:
19”W x 3 1/2”H x 11”D, built-in 2 space rack mount, 22 pounds
Important Satellite III installation
conditions and
recommendations:
· Using the Induction Loop Receiver
provided with the system, a pre-installation
listening check and measurement should be performed in the areas where
loop systems will be installed to ensure that there are no sources of
strong
electromagnetic fields that can interfere with the system. While
holding the induction loop receiver in an upright position, the
receiver's LED should not be
illuminated by
ambient noise. Please contact Oval
Window Audio
for more information concerning the measurement and mitigation of
noise.
· The loop wire may be installed in crawl spaces, under
carpeting,
in plastic conduit or clips on the wall, on/above ceiling, or simply
taped down for temporary use.
· The loop wire may be installed in existing concrete
floors
by cutting a 1/8” W x >¼” D groove in the floor,
placing the
loop wire in the groove and filling in the space with epoxy sealer.
· The loop wire may be installed in a newly poured
concrete floor
by first running the wire through ½-1” PVC conduit. The
PVC
conduit should be placed in the floor so that it is at least 12” above
metal reinforcement bars and within 12” of the flooring surface.
The conduit may be tied to wooden support struts before concrete is
poured.
Alternatively, scaffolding may be used to hold the PVC conduit in place
while the concrete is poured.
· In order to maintain proper signal strength and
signal uniformity,
the loop perimeter in each listening area should not exceed 300-325
feet.
The extra wire provided with the systems may be used as loop lead-in
wire
to connect to the loop amplifier. If longer lead-in wire is
needed,
10 gauge wire is recommended in order to minimize power losses.
· Multiple Satellite III systems may be used to cover
larger
areas. As with stereo/multiple loudspeakers, multiple loop
systems
must be checked for proper phasing so that the loop signals are working
to support each other. Correct phasing will generally occur if
all
loop wires are installed and connected to the loop amplifiers’ output
terminals
in the same orientation. For example, all loop wires can start at the
“C/-“
terminal and be installed in a clockwise direction around the seating
areas.
Phasing of multiple loop systems should be confirmed by walking from
one
looped area to another while monitoring the signals. If the loops
are out of phase, there will be a noticeable signal loss in the areas
where
the loop wires meet. The remedy is to reverse the phasing of one
of the loop amplifier outputs. This can also be accomplished by
changing the position of the unmarked phase reverse rocker switch on
the rear of one of the Satellite III amplifiers.
· Larger areas up to 500 feet in perimeter, may also be
serviced by bridging the two Satellite III amplifiers. Click here for
information on the Satelllite III's bridging
feature.
· Due to “dead spots” that occur directly above and
below the
loop wire, the sides of the installed loop wire should not be situated
directly above or directly below seating within the listening area. The
sides of multiple loop wires must meet in areas where there is no
seating,
such as aisles.
· The loop wire must not be run in continuous contact
with metal,
either directly above or below the loop wire. Loop wires may
cross
ceiling framework and may briefly run behind metal furniture. At
least 70% of the total loop must be free of metal obstructions.
· At least 70% of the loop wire should be installed in
the horizontal
plane.
· The loop wire must completely encompass the listening
area.
· The height of ceiling loop wires must not exceed
10-12 feet
above the floor of the listening area.
· Floor level loop wires must not exceed 3-4 feet below
the floor.
· Conventional loops transmit signals that spill
outside the
looped listening areas. At least twice the length of the longest
side of the loop must be allowed between looped areas on the same
floor.
In regard to loop systems on different floor levels, the systems should
be separated by at least one half the length of the longest side of the
loop wire.
· Avoid running loop wire in close proximity and
parallel to
telephone lines, microphone cords and video feeds. Maintain a
distance
of at 12”.
· The use of dynamic microphones or musical
instruments with magnetic pickups can result in equipment damaging
feedback. To avoid this, use condenser microphones and/or keep dynamic
microphones & musical instrument pickups at least 10 feet from the
loop wire.
· Using the Induction Loop
Receiver, always begin system set ups with all inputs and output
controls at MINIMUM settings, slowly increasing levels until proper
signal is attained in the center of the loop. Correct signal strength
will light up the Induction Loop Receiver's LED when the receiver is
help upright in center of the looped area.
· Please contact us
regarding special techniques that may be used to reduce signal spill
over.
Warranty
All Oval Window Audio products are sold on a 30-day
satisfaction guaranteed
basis and with a 3-year warranty covering parts and labor.
Exceptions
to this warranty include microphones, rechargeable batteries and
ear/headphones
which are guaranteed for 90 days. Warranty will be voided for
equipment
that has been abused, altered or operated in a manner contrary to
directions
contained in the user manual. A return authorization must be
obtained
for all equipment returns and servicing.


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products
right here online. However, if you have any questions, simply e-mail us
directly. One of our representatives will get back to you promptly.
Just
e-mail your message to info@ovalwindowaudio.com
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