Decade MS-100 series User manual

HI-FI FM TRANSMITTER
MS-100
INSTRUCTION MANUAL
CANADA
‘’ Operation of this device is subject to the folowing two conditions:
(1) this device may not cause interference and (2) this device must
accept any interference,including interference that may cause
undesired operation of the device.’’
USA
This device complies with Part 15 of the FCC rules. Operation of this
device is subject to the folowing two conditions:(1) this device
may not cause harmful interference; and (2) this device must
accept any interference received,including interference that may
cause undesired operation.’’
9702-
100

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DECADE

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TABLE OF CONTENT
PAGE
SECTION 1: GENERAL INFORMATION......................................... 2
A) Introduction......................................................... 2
B) Description.......................................................... 2
C) Warranty............................................................. 2
D) Warning.............................................................. 3
E) Technical specifications......................................... 3
SECTION 2: INSTALLATION ....................................................... 3
A) Introduction......................................................... 3
B) Receiving inspection............................................. 3
C) Connections ........................................................ 3
D) Location of the transmitter...................................... 4
SECTION 3: OPERATION............................................................ 4
A) Controls and indicators......................................... 4
B) Input and output connectors.................................. 4
C) Optimal input level ............................................... 4
SECTION 4: MAINTENANCE AND ALIGNMENT ............................ 5
A) Maintenance........................................................ 5
B) Frequency selection.............................................. 5
C) Bits switch codes table......................................... 6
SECTION 5: APPLICATIONS ....................................................... 8
Supplement
!MS-100 technical specifications

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SECTION 1
GENERAL INFORMATIONS
A) Introduction
Thank you for purchasing one of the fine products made by DECADE
Transmitters. Before using it, please read this manual carefully in order
to obtain the best possible results from your transmitter. The manual
contains installation, operation and adjustment procedures for
DECADE MS-100 Transmitter.
B) Description
MS-100 transmitter include a crystal controlled VCO and an RF power
amplifier. The MS-100 accepts audio signals via the front panel, RCA
jacks.
Input level can be adjusted from the INPUT LEVEL control on the front
panel, in order to get the optimum modulation level. This useful
feature makes DECADE transmitters very versatile, allowing them to
accept audio signals from many sources: CD players, tape decks,
mixing boards, cinema projectors, etc. Please refer to section 3-c .
C) Warranty
MS-100 transmitters come with a one (1) year warranty that covers
parts replacement and labor required to repair any defects resulting
from the manufacturing process. All claims must be authorized by
DECADE prior to shipment of a faulty unit for repairs, and a copy of
the invoice must be included in the shipment. Shipping fees are
assumed by the client and DECADE will pay for the return of the
repaired unit.
D) Warning
DECADE transmitters operate on the 88.1 MHz - 107.5 MHz
commercial FM broadcast band, so signals transmitted can be

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received on any standard FM receiver. Thus, some care should be
taken in the use made out of these transmitters.
DECADE transmitters inc. is not responsible for any financial loss or
violation of local laws during the utilisation of their transmitters.
The FCC (Federal Communications Commission) and the DOC
(Department Of Communications,Canada) legislate the use of FM
transmitters operating in the commercial FM band. No license is
required for the use of these transmitters,in the exception of; if the
unit
is setted to comply with RSS-123 regulation (Applicable in Canada
only).This regulation stipulate that the user has to advise the nearest
local Industry Canada district about the use of such FM transmitter.
E) Technical specifications
Refer to supplement, Technical specifications of MS-100
SECTION 2
INSTALLATION
A) Introduction
Installation of a DECADE FM transmitter includes the following steps:
1) receiving inspection; 2) mounting on a shelf; 3) connecting the
audio source.
B) Receiving inspection
Check the transmitter packaging for any damage that could have
occurred during shipping. If you find any damage to the transmitter,
keep the packaging for claims purposes with the freight company.
Any damage should be noted on the receiving slip at the time of
delivery and the freight company advised within 5 working days
following the delivery of damaged units.
C) Connections

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After installation of the transmitter on a shelf, plug the AC wall
adaptor in the AC wall receptacle. An RCA to RCA audio cable is
furnished for
linking your audio source to the MS-100 audio inputs.
D) Location of the transmitter
DECADE transmitters are designed for indoor or outdoor use in a dry
environment, in temperatures ranging from -4 to 122°F (50°C). In
order to obtain optimum performances, it is recommended to place
them far from any electromagnetic noise source (transformers,
motors, etc.).
Transmitters should be located as close to the center of the hall or
coverage area as possible, and at a sufficient height to give the
transmitted signal an unobstructed path to every seat or receiving
point. Transmitted signal paths will be weakened by concrete walls or
steel beams or sheets placed around them. On the other hand,
windows are very permeable to radio waves, so avoid locating the
transmitter near them if you wish to restrain the coverage to the
interior of a building.
SECTION 3
OPERATION
A) Controls and indicators
Input level is controlled by a potentiometer located on the front panel.
A power indicator and over modulation LEDs are also located on the
front panel.
B) Input and output connectors
The MS-100 transmitter comes with one set of inputs: RCA type line
level input.The RF output is permanently linked to a telescopic
antenna.
C) Optimal input level (VERY IMPORTANT)

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Optimal input level is reached when the audio level at the receiver end
is equal to the level of a standard FM broadcast station. To obtain this
result it is mandatory to compress the audio input signal (between
your audio source output and the inputs of the MS-100). The over
modulation LED on the front panel shall never or rarely lite up.The
level has to be adjusted in a maner to avoid over modulation.
SECTION 4
MAINTENANCE AND ALIGNMENT
A) Maintenance
No maintenance is required to keep the transmitter in top operating
condition. If an external cleaning appears necessary, use a soft, damp
cloth and mild soap only.
B) Frequency selection
The transmitting frequency is user programmable via a 10 bit dip
switch on the rear panel.If a change of frequency is required,folow
this simple step.
1) from the «bits switch» codes table, on the next pages, select the
appropriate «bits switch» code for your chosen frequency and set
the «bit switches» accordingly.
NOTES: 1) The frequency range of the MS-100 is 88.1 to 107.5mhz.
2) If your application requires more than one MS-100,it is
mandatory to leave some space between the two
choosen frequencies in a maner to avoid channel
scrambling or
intermodulation products.Ex; If the first choosen is
88.5mhz, then the second choosen frequency shall be
89.1mhz. The choosen frequencies shall not interfere
with local FM broadcast stations. If you intend to use
more
than two MS-100 in the same restricted area,Decade
company offers a free assistance service that will guide
you thru the steps of multiple frequencies setup.Please
call our service dept at: 1-819-563-4323. Hours are
8.30 AM to 5.00 PM, eastern time.

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C) Bit switch codes table
FreqMHz12345678910
88.1 ON ON ON OFF OFF OFF ON OFF OFF ON
88.3 OFF ON ON OFF OFF OFF ON OFF OFF ON
88.5 ON OFF ON OFF OFF OFF ON OFF OFF ON
88.7 OFF OFF ON OFF OFF OFF ON OFF OFF ON
88.9 ON ON OFF OFF OFF OFF ON OFF OFF ON
89.1 OFF ON OFF OFF OFF OFF ON OFF OFF ON
89.3 ON OFF OFF OFF OFF OFF ON OFF OFF ON
89.5 OFF OFF OFF OFF OFF OFF ON OFF OFF ON
89.7 ON ON ON ON ON ON OFF OFF OFF ON
89.9 OFFONONONONONOFFOFFOFFON
90.1 ON OFF ON ON ON ON OFF OFF OFF ON
90.3 OFF OFF ON ON ON ON OFF OFF OFF ON
90.5 ON ON OFF ON ON ON OFF OFF OFF ON
90.7 OFF ON OFF ON ON ON OFF OFF OFF ON
90.9 ON OFF OFF ON ON ON OFF OFF OFF ON
91.1 OFF OFF OFF ON ON ON OFF OFF OFF ON
91.3 ON ON ON OFF ON ON OFF OFF OFF ON
91.5 OFF ON ON OFF ON ON OFF OFF OFF ON
91.7 ON OFF ON OFF ON ON OFF OFF OFF ON
91.9 OFF OFF ON OFF ON ON OFF OFF OFF ON
92.1 ON ON OFF OFF ON ON OFF OFF OFF ON
92.3 OFF ON OFF OFF ON ON OFF OFF OFF ON
92.5 ON OFF OFF OFF ON ON OFF OFF OFF ON
92.7 OFF OFF OFF OFF ON ON OFF OFF OFF ON
92.9 ON ON ON ON OFF ON OFF OFF OFF ON
93.1 OFF ON ON ON OFF ON OFF OFF OFF ON
93.3 ON OFF ON ON OFF ON OFF OFF OFF ON
93.5 OFF OFF ON ON OFF ON OFF OFF OFF ON
93.7 ON ON OFF ON OFF ON OFF OFF OFF ON
93.9 OFF ON OFF ON OFF ON OFF OFF OFF ON
94.1 ON OFF OFF ON OFF ON OFF OFF OFF ON
94.3 OFF OFF OFF ON OFF ON OFF OFF OFF ON
94.5 ON ON ON OFF OFF ON OFF OFF OFF ON
94.7 OFF ON ON OFF OFF ON OFF OFF OFF ON
94.9 ON OFF ON OFF OFF ON OFF OFF OFF ON
95.1 OFF OFF ON OFF OFF ON OFF OFF OFF ON
95.3 ON ON OFF OFF OFF ON OFF OFF OFF ON
95.5 OFF ON OFF OFF OFF ON OFF OFF OFF ON
95.7 ON OFF OFF OFF OFF ON OFF OFF OFF ON
95.9 OFF OFF OFF OFF OFF ON OFF OFF OFF ON
96.1 ON ON ON ON ON OFF OFF OFF OFF ON
96.3 OFFONONONONOFFOFFOFFOFFON
96.5 ON OFF ON ON ON OFF OFF OFF OFF ON
96.7 OFF OFF ON ON ON OFF OFF OFF OFF ON
96.9 ON ON OFF ON ON OFF OFF OFF OFF ON
97.1 OFF ON OFF ON ON OFF OFF OFF OFF ON
97.3 ON OFF OFF ON ON OFF OFF OFF OFF ON
97.5 OFF OFF OFF ON ON OFF OFF OFF OFF ON
97.7 ON ON ON OFF ON OFF OFF OFF OFF ON
FreqMHz12345678910

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Freq MHz 12345678910
97.9 OFF ON ON OFF ON OFF OFF OFF OFF ON
98.1 ON OFF ON OFF ON OFF OFF OFF OFF ON
98.3 OFF OFF ON OFF ON OFF OFF OFF OFF ON
98.5 ON ON OFF OFF ON OFF OFF OFF OFF ON
98.7 OFF ON OFF OFF ON OFF OFF OFF OFF ON
98.9 ON OFF OFF OFF ON OFF OFF OFF OFF ON
99.1 OFF OFF OFF OFF ON OFF OFF OFF OFF ON
99.3 ON ON ON ON OFF OFF OFF OFF OFF ON
99.5 OFF ON ON ON OFF OFF OFF OFF OFF ON
99.7 ON OFF ON ON OFF OFF OFF OFF OFF ON
99.9 OFF OFF ON ON OFF OFF OFF OFF OFF ON
100.1 ON ON OFF ON OFF OFF OFF OFF OFF ON
100.3 OFF ON OFF ON OFF OFF OFF OFF OFF ON
100.5 ON OFF OFF ON OFF OFF OFF OFF OFF ON
100.7 OFF OFF OFF ON OFF OFF OFF OFF OFF ON
100.9 ON ON ON OFF OFF OFF OFF OFF OFF ON
101.1 OFF ON ON OFF OFF OFF OFF OFF OFF ON
101.3 ON OFF ON OFF OFF OFF OFF OFF OFF ON
101.5 OFF OFF ON OFF OFF OFF OFF OFF OFF ON
101.7 ON ON OFF OFF OFF OFF OFF OFF OFF ON
101.9 OFF ON OFF OFF OFF OFF OFF OFF OFF ON
102.1 ON OFF OFF OFF OFF OFF OFF OFF OFF ON
102.3 OFF OFF OFF OFF OFF OFF OFF OFF OFF ON
102.5 ON ON ON ON ON ON ON ON ON OFF
102.7 OFFONONONONONONONONOFF
102.9 ONOFFONONONONONONONOFF
103.1 OFF OFF ON ON ON ON ON ON ON OFF
103.3 ONONOFFONONONONONONOFF
103.5 OFF ON OFF ON ON ON ON ON ON OFF
103.7 ON OFF OFF ON ON ON ON ON ON OFF
103.9 OFFOFFOFFONONONONONONOFF
104.1 ON ON ON OFF ON ON ON ON ON OFF
104.3 OFF ON ON OFF ON ON ON ON ON OFF
104.5 ON OFF ON OFF ON ON ON ON ON OFF
104.7 OFFOFFONOFFONONONONONOFF
104.9 ON ON OFF OFF ON ON ON ON ON OFF
105.1 OFFONOFFOFFONONONONONOFF
105.3 ONOFFOFFOFFONONONONONOFF
105.5 OFF OFF OFF OFF ON ON ON ON ON OFF
105.7 ON ON ON ON OFF ON ON ON ON OFF
105.9 OFF ON ON ON OFF ON ON ON ON OFF
106.1 ON OFF ON ON OFF ON ON ON ON OFF
106.3 OFF OFF ON ON OFF ON ON ON ON OFF
106.5 ON ON OFF ON OFF ON ON ON ON OFF
106.7 OFF ON OFF ON OFF ON ON ON ON OFF
106.9 ON OFF OFF ON OFF ON ON ON ON OFF
107.1 OFF OFF OFF ON OFF ON ON ON ON OFF
107.3 ON ON ON OFF OFF ON ON ON ON OFF
107.5 OFFONONOFFOFFONONONONOFF

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SECTION 5
APPLICATIONS
Applications for DECADE transmitters are almost unlimited, but here are a few
very popular ones. With DECADE transmitters, a whole new world opens up
for hearing impaired people, and most of all for people demanding the best
sound reproduction possible, regardless of the environment.
CHURCHES: Connected to the church sound system, the
transmitter broadcasts the oral and musical
content of the celebrations to the
attendants,using
a standard FM Walkman (hearing impaired or not).
THEATRES: With one microphone installed on the stage and
fed to the transmitter through a mixing board, you
will have the sensation of being seated right next
to the actors, even if you are actually sitting in
the last row.The receiver is again an FM
Walkman.
CONFERENCE HALLS: Many transmitters can be used as part of a
simultaneous translation scheme, where
attendants can listen to the conference in the
language of their choice. A single transmitter can
also be used as an aid for hearing impaired
persons.
FITNESS CENTRES: Hooked to any sound sources like TV sets and
VCRs,club members will enjoy listening with a
standard FM walkman while they workout.

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TECHNICAL SPECIFICATIONS
MS-100
RF SECTION
MODULATION: FM, 75kHz deviation
FREQUENCY SELECTION: 88.1 to 107.5 MHz
FREQUENCY PRECISION: .005%
MAXIMUM POWER: 250µV/m @ 3 m (FCC Part 15 compliance)(RSS-210)
: 1.5 miliWatts (DOC RSS-123)(Canada only).
SPURIOUS REJECTION: 45 dB min.
FREQUENCY STABILISATION DELAY: 4 SECONDS @ 88.1mhz
AUDIO SECTION
FREQUENCY RESPONSE: 20 - 20,000 Hz
HARMONIC DISTORTION: 0.05% max.
SIGNAL TO NOISE RATIO: 70 dB min.
DYNAMIC RANGE: 80 dB min.
INDICATORS: Power status, over modulation status.
CONTROLS: Modulation volume, frequency selection(10 bit dip switch).
MISC
POWER SUPPLY: 115/16vAC @ 300Ma.
DIMENSIONS: 9.8" X 6.3" X 1.6"
Decade Transmitters inc,Sherbrooke,Quebec,Canada.All rights reserved 1997.