AAREFF 100MWPLLSB Manuale utente
AAREFF TRANSMISSION SYSTEM
Av. Andalucía No. 1 CP 04661
100 mW FM STEREO TRANSMITTER
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CONTENTS
1. INTRODUCTION ........................................................................ 4
1.1 Unpacking and Checking ....................................................... 4
1.2 General Information ............................................................... 4
1.3 User Safety Responsibility .................................................... 4
1.4 Electromagnetic Compatibility .............................................. 5
1.5 Intended Use ........................................................................... 5
2. SPECIFICATIONS ..................................................................... 6
2.1 Front Label .............................................................................. 6
2.2 Rear Label ............................................................................... 7
2.3 Design...................................................................................... 8
2.4 Transmitter Dimensions ......................................................... 8
2.5 Technical Data ........................................................................ 9
3. INSTALLATION ....................................................................... 10
3.1 Audio Input ............................................................................ 10
3.2 DC Input and DC Auxiliary Output ...................................... 11
3.3 100mW 50 OHM RF output ................................................... 12
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3.4 Bottom Panel Controls ......................................................... 13
4. OPERATION ............................................................................ 14
4.1 Setting RF Output Power ..................................................... 14
4.2 Changing Frequency ............................................................ 14
4.3 Adjusting Deviation .............................................................. 15
4.4 Fine Frequency Adjustment ................................................ 15
5. FREQUENCY LOCK CODES .................................................. 16
6. DECLARTION OF CONFORMITY ........................................... 24
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1. INTRODUCTION
Please read this manual before assembling and using the unit. This
will ensure that the product operates as intended.
1.1 UNPACKING AND CHECKING
Verify that the product is in good condition and has not been
damaged during transport. In case of loss or damage please contact
at info@aareff.com
1.2 GENERAL INFORMATION
This manual does not contain any kind of warranty. Warranty details
are specified in our terms and conditions at
https://www.aareff.com/en/terms.htm
This product can only be installed and serviced by suitably qualified
personnel. If difficulties arise during the installation or
commissioning, please contact us by email at info@aareff.com
1.3 USER SAFETY RESPONSIBILITY
You are responsible for selecting the transmitter model appropriate
to your application, installing it properly and ensuring the system
maintenance.
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This symbol appears in the manual to call attention to
instructions concerning the safety of the installation,
operation, and use the product.
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1.4 ELECTROMAGNETIC COMPATIBILITY
This product complies with EMC directive EN 301 489 – 11 of the
European Union. To meet this directive. You must follow the wiring
instructions
1.5 INTENDED USE
This equipment is a transmitter for FM sound broadcasting in short
distances, normally of 100m with a 50 ohm antenna. This can be for,
but not limited to, drive movie theaters, health clubs and gyms or
special events.
This equipment is for use in a permanent fixed location
with a license from the radio spectrum regulator in the EU
Member State.
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2. SPECIFICATIONS
2.1 FRONT LABEL
1 Transmitter model
2 Manufacturer
3 DC power indicator
4 PLL unlocked indicator
5 PLL locked indicator
6 RF power indicator
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2.2 REAR LABEL
1 Audio Inputs
2 DC Power Input
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Auxiliary DC Output
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100mW 50 ohm RF Output
5 Manufacturer
6 Model
7 User Warning
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2.3 DESIGN
The design utilizes a low power oscillator VHF amplified to 100mW
of power and phase-locked with a chain to a reference divider quartz
oscillator. The 100mW signal is then applied to a 12 pole low pass
filter that produces RF final RF output. All this is housed in an metal
case fully screened to protect the user from direct contact with RF
voltages and to prevent unwanted emissions, local interference and
provide to the unit with sufficient RF immunity for the proper
operating in an industrial environment.
2.4 TRANSMITTER DIMENSIONS
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2.5 TECHNICAL DATA
Power Input 13.8VDC o 115/230 VAC 50/60 Hz with PSU
RF Power Output 100mW +/- 0.5 dB between -20 and +40 oC
RF Output Connector BNC / 50 ohm
Spurious Emissions >66dB rtc
Harmonic Emissions >66dB rtc
Out of Lock RF Muting >66dB rtc
Freq Range 100 KHz steps between 87.5 and 108MHz
Freq Stability Better than +/- 2 KHz entre -20 and +40 oC
Freq Fine Adj > +/- 1000Hz
Freq Adj. Accuracy +/- 50 Hz
Dev. Sensitivity Stability +/-2% max
Audio Input Connectors Phono/ RCA type unbalanced
Pre-emphasis (50uS/ 75uS/ None)
Audio Input Sensitivity 775 mV rms for 75 KHz Dev. User Adj.
Signal To Noise Ratio >72 dB rel. +/-75KHz dev.
Freq Response (MPX) +/-0.5dB between 30 Hz and 76 KHz
Audio Distortion Better than 0.02 % THD
All stated measurements were made at 15 VDC at 23 Co ambient
temperature
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3. INSTALLATION
The installation must be by an engineer that has skills and
competancy in EMC and radio frequency systems. The
final installation should be in accordance with the site
engineering document at http://www.aareff.com/ETR132.pdf.
3.1 AUDIO INPUT
AUDIO INPUTS accept stereo audio signals of 0 dBu. The RCA /
phono connectors are "Hi-Z" input of 10k ohms. You must use
shielded cable or high quality coaxial to connect this input to the
other equipment. During manufacture and testing the transmitter is
adjusted to achieve + / -75 kHz deviation FM (the maximum allowed)
at 88.0 MHz input +4 dBu.
To comply with the EMC Directive cable used to connect the input to
the other equipment should NOT be longer than 3 meters in length.
To comply with the R&TTE, it is mandatory that the signal level of
the audio input is peak limited with an audio limiter or similar
processor. Upon completion of the installation, the FM deviation
needs to be checked and adjusted so that the audio signal that’s
peak limited gives a maximum deviation of no more than + / -75 kHz.
This deviation is adjusted using VR1 shown in the photo of the
bottom panel. (See Figure 2)
Indice
