INTENDED USE

i. The various pieces of equipment in this document are only for use permanently at a pre-defined location with a license or authorisation from the radio spectrum regulator in your country or EU member state.

ii. The installer must have competent RF engineering skills at their disposal, be EMC aware and understand radio frequency systems. The final installation should be in accordance with the site engineering document at https://www.aareff.com/ETR132.pdf The radio station management must assign a responsible person to the transmission equipment and installation.

TRANSMITTER PACKAGE CHECKLIST

Qty	Description	Item
1	Stereo coder audio limiter / 1 watt FM driver exciter 15V DC (ALSCB & 1WPLLB)
1	800W FM power amplifier
1	DC to DC Lead (DC connections from ALSCB to 1WPLLB to distribution amplifier)
1	IEC AC power cord
1	MPX audio lead (audio connection from ALSCB to 1WPLLB)
1	BNC to BNC lead (rf connection from 1WPLLB to Distribution Amplifier to a 800WNTAP)
1	15V DC switch mode AC power supply (1W)
1	Rack Rails

ANTENNA PACKAGE CHECKLIST

All these parts are packed in the carton measuring 17 x 17 x 155 cm (6.75 x 6.75 x 61 inches)

Qty	Set	Description
4	A	1/2 wave, base, 25mm dia. main radiator, 22mm dia. top adjust tube and tube clamp
4	B	38mm x 800mm boom tube
4	C	Boom to mast/ tower mounting clamp. Each set includes, 1 x 100mm square 3.2mm thick clamping plate, 4 x 38mm U bolts with M8 threads, 8 x M8 spring washers, 8 x M8 plain washers and 8 x M8 nuts
4	D	Antenna base to boom U bolts clamp assemblies. Each set includes 2 x 38mm U bolts with M8 threads, 2 x 38mm tube clamp, 4 x M8 spring washers, 4 x M8 plain washers and 4 x M8 nuts
4	E	Bottom tuning bar
4	F	Top tuning bar
4	G	Tuning bar M6 screw, 1 aluminium sleeve, 2 M6 washers and 1 M6 nut
4	H	Tuning bar M6 screws and washers

Qty	Description	Item
3	Splitter Boxes
4	Combo cable LMR400 (2.93 mt BLUE 90º plug) and RG11 (0.63 mt) GREEN plug, total length 3.56 mt
2	Combo cable LMR400 (2.93 mt BLUE STRAIGHT plug) and RG11 (0.63 mt) GREEN plug, total length 3.56 mt
1	30m roll of LMR400 antenna cable

IMPORTANT! PLEASE READ, we know it's boring, but if you want your system to work correctly, safely and legally, it is necessary.

The antenna is the most important part of the transmission system and must be correctly installed before proceeding further and before any other transmission equipment is connected.

Ideally this antenna should be mounted at least 20 meters high and clear of any surrounding objects to get maximum range and more importantly to reduce risk of radio frequency radiation to personnel. When mounted at least 20 meters in height off ground and using 800 watts of transmitter power, power flux density measurements made at ground level directly under the antenna show less than 1 W/m2. Several European countries use a value for the power flux density of 10 W/m2 as a basis for considering whether or not an area is safe. The issue of radio frequency radiation limits is a contentious one and work in this field is continuing worldwide. Under no circumstances should the antenna be mounted and used at ground level or within a few meters of personnel.

IMPORTANT! INSTALLATION NEAR TO POWER LINES

• Erect antenna on pole, mast or tower as far away as possible from the power lines
• Avoid crossing antenna cables under electrical power lines
• Do not attach antennas to towers, poles or similar structures carrying electrical power lines
• If you are not experienced in installation of antennas, have experienced persons assist you
• During installation, tie off antenna with a rope so if it falls it can be diverted away from the power lines
• Avoid fastening antennas, especially self-supporting types, to old chimneys or to any chimney not designed to take such stress. Forces created by a strong wind may be sufficient to topple both chimney and antenna

ELECTROMAGNETIC COMPATIBILITY

When writing this manual there was no EU directive regarding the EMC compatibility of Band II VHF broadcast antennas, however in our view there are some potential EMC compatibility issues that need to be addressed when installing this antenna system. On completion of the antenna installation check;

• All the cables entering the connectors are tight and properly crimped or soldered
• All the connectors are screwed in tight and sound
• PVC insulation tape and/or self amalgamating tape are wrapped around all the connectors to stop water entering the connector and the inside of the body of the cable
• If any cables are loose or there are bad connections this can cause some non-linear resistance, diode action or some small arcing. When this happens it creates EMC disturbance (arcing and crackling sound) across a wide frequency spectrum

TO ERECT THIS ANTENNA YOU WILL NEED TO PROVIDE

• PVC insulation tape and/or self amalgamating tape
• Metric tape measure at least 3m
• Two 13mm spanners, one with a ringed end
• 10mm socket and wrench
• Flat medium size screwdriver
• A secure mounting mast with a diameter of 38mm (1 1/2 inch) and clear length of at least 13 meters for mounting the dipole antennas to.

ASSEMBLING THE FOUR HALF WAVE ANTENNA BASE SECTIONS

Using the following items to assemble the four antenna base sections with the tuning loops as shown in the picture below.

1 x (A) 0.5λ (half wave) radiator and base
2 x (D) Antenna base to boom U bolts clamp assemblies
1 x (F) Top tuning bar
1 x (E) Bottom tuning bar
2 x (H) M6 screws and 2 washers
1 x (G) Tuning bar M6 screw, 1 x aluminium sleeve, 2 x M6 washers and 1 x M6 nut

1. The tuning loop, bar and aluminium sleeve form an half turn inductor. The operating frequency determines the position of the aluminium sleeve. Put the aluminium sleeve in one of the six positions shown in picture for the frequency that you want. This sleeve will be carrying a huge RF current, make sure it is tight and firm. The tuning loop and bar should also be screwed tight to the Teflon section with the two M6 screws and washers. This is shown in the pictures.

2. The bottom tuning bar should also be clamped tight to the back plate of the base and the 38mm x 800mm boom tube using the U bolt clamp assemblies. Again as shown in the picture below.

ADJUSTING THE SPACING AND THE LENGTH

Pick the frequency (MHz) from the table that is the closest to frequency you need to use. For example if you needed 91.3 MHz, then you would pick 91 MHz, this is the closest.

1. Adjust the radiator to length shown in metres for 0.5λ (wavelength). Use a metric tape measure to measure the length from the (IMPORTANT) top plate of the base section to the end of the top tube. Slide the top radiator tube inside the bottom large radiator tube until the correct length is reached. At the correct length tighten the circular screw clip to secure the two tubes in place. Make sure the clip is tight and the tubes don't move. DOUBLE check the length again from the top plate of the base section to the end of the top tube. If this length is not correct, the antenna will not radiate correctly and there'll be high reflected power and SWR.

2. Make the distance / spacing between the booms to 2.8 mt. This is not a critical measurement and only needs to be accurate to +/- 2 or 3 cm. This spacing optimises the complete antenna system to give maximum gain to the horizon.

4. CONNECT THE STRAIGHT COMBO CABLES Using the two combo cables of LMR400 with STRAIGHT blue plugs, connect the blue plugs to the centre sockets of splitter box 1 at the top and splitter box 3 at the bottom. Then connect the green end plugs to outer sockets of the splitter box 2. Again, IMPORTANT! DO NOT CUT BACK, ADD OR CHANGE THE LONG ANTENNA CABLE LENGTHS. To get maximum radiation to the horizon it is important that the signal to each antenna arrives at exactly the same time, this can only happen if the cables are exactly the same length.

5. CONNECT THE MAIN FEED CABLE Using the long 30 mt LMR400 cable (or longer if you specially ordered extra) connect one end to the centre socket of splitter box 2 in the middle. Take the other end of the cable down to the location of where you transmitter or amplifier is located.

6. MAKE SURE THE CONNECTORS ARE SCREWED PROPERLY AND TIGHT. Wrap PVC or self amalgamating tape tightly around and all over the connectors to make them water resistant.

7. Securely fix the cables using PVC tape or large cable ties to the mast as shown in the diagram. Make sure the cables are not going to flap around in the wind. Once again, do not cut back any excess cable. To make the cabling look tidy, it is okay to coil the cable.

8. Make sure that all fixings, brackets and clamps are tight and are not going to work loose over time with wind.

9. On completion of the antenna installation you should have the long LMR400 cable coming down from the antenna assembly ready to plug into the large RF power amplifier or transmitter.

IMPORTANT! FOR THIS SYSTEM TO WORK CORRECTLY AND GIVE 4KW ERIP PLUS TO THE HORIZON IT IS VERY IMPORTANT THAT:

1. THE ANTENNAS ARE MOUNTED STRAIGHT VERTICAL AS SHOWN IN THE DIAGRAM

2. THE ANTENNAS ALL LINE UP WITH EACH OTHER

3. THE LENGTHS OF COMBO CABLES SHOULD NOT BE CHANGED IN ANY WAY

TRANSMITTER FREQUENCY

When this system was ordered, if a specific frequency was given during the order process, then the system will have been set and factory tested at this frequency. If not, or you need to change the frequency or power level please refer to the user manual for 1W PLL FM STEREO DRIVER / EXCITER WITH AUDIO PROCESSING at aareff.com/1wpllsl19

1. Use the supplied M6 screws, nuts, washers and rack rail bars to clamp the Driver (1WPLLB and ALSCB) and the 800W power amplifier together as shown in the picture. The power amplifier is much heavier, so these should be at the bottom. The Driver is light and will suspend in the air and does not need any support at the back.

Alternatively you can mount the units in a professional 19 inch enclosure and integrate the units with other equipment that you have.

6. Connect mains AC power to the 800W amplifier. The driver will lock after a few seconds and amplifiers should indicate power on the front panel meters. The switch on the front panel of the amplifier should be set to ‘FWD’.

7. Finally, provide an audio input to the ALSCB Stereo Generator and Limiters and you are "ON AIR".

IMPORTANT! ALWAYS KEEP THE VENTS AND FANS CLEAR

SYSTEM SPECIFICATIONS

Power Supply	90-260 VAC 50/60 Hz
Transmitter RF Power Output	800 Watts +/- 0.5 dB from -20 to +40 Deg C
Freq Stability	Better than +/- 2 KHz from -20 to +40 Deg C +/- 300 Hz typ.
Freq Range	100 KHz steps from 87.5 to 108 MHz
Deviation Sensitivity Stability	+/- 2 % max
Spurious Emissions	Better than -75dB ref to carrier
Harmonic Emissions	Better than -70dB ref to carrier
RF Bandwidth	200 KHz (+/-100 KHz @ -40 dB rtc)
Output Connectors	N type 50 ohm
RF Ruggedness	Any VSWR any phase any length of time
Audio Input Sensitivity	0 dBu 775 mV rms adjustable
Audio Inputs Connector	Phono/ RCA socket
Audio S/N Ratio	Better than 70 dB
Audio Freq Response	30 Hz to 15 KHz +/- 0.5 dB
Audio Distortion	Better than 0.1 % at +/-75 KHz dev
Stereo Crosstalk	35 dB
Pre-emphasis	50 uS (75 uS USA) or None
Pilot Tone Freq	19 KHz
Pilot Tone Stability	0.2 Hz
Antenna Polarisation	Vertical
Antenna Gain	(0.9λ 2.8 mt spacing at 98 MHz) 6.6 dB + (Isotropic Gain) 2.1 dBi = 8.7 dBi
Antenna Cable Loss	-1.2 dB 30m LMR400 foam cable
Antenna RF Power Output	4498 Watts EIRP +/- 0.5 dB (total system gain +7.5 dBi) from -20 to +40 Deg C using 30m of LMR400 foam antenna cable and the four half wave antennas supplied spaced at 0.9λ at 98 MHz

EQUIPMENT COMPLIANCE (DECLARATION OF CONFORMITY)

European Union

We hereby declare that this equipment complies with;
• ETS 300384 European Telecommunications Harmonised Standard when used with an audio compressor limiter supplied and tested by Aareff
• EN 301489-11 V1.3.1 (2006-05) EMC Electromagnetic Compatibility when used with 1 meter AC mains cord supplied. If the installation engineer needs to extend this cord, this and the audio input cable should be no more than 3 meters in length to remain in compliance with EMC directive.
• 2006/95/EC Directive (2006-12) LVD Low Voltage Directive.

Equipment compliance is possible using equipment from and in conjunction from other manufacturers, but since this is beyond the control of Aareff Systems, Aareff Systems cannot or be expected to guarantee compliance in this situation.

United States

The following list are the FCC technical requirements for FM broadcasting. We confirm and verify that this transmitter complies with the technical requirements.

47 CFR Chapter I Federal Communications Commission sections:
• 73.1560, 2.1046 RF Power
• 73.1545, 2.1055 Frequency Stability
• 73.317, 2.1049 (e)(3) Emission Limitation, Emission Mask
• 73.317, 2.1057, 2.1051 Emission Limits, Spurious Emissions at Antenna Terminal
• 73.317, 2.1057, 2.1053 Emission Limits, Field Strength of Spurious Emissions

ROHS

All components used in this apparatus are RoHS compliant and do not contain above the specified limits in any of the following restricted substances:

• Lead
• Hexavalent Chromium
• Mercury
• Cadmium
• Polybrominated Biphenyls (PBB's)
• Polybrominated Diphenylethers (PBDE's)

PRODUCT END OF LIFE

This apparatus must NOT be disposed of with other domestic waste.

We are fully committed to maintaining our responsibilities to the environment. Owners of apparatus that has reached the end of it's useful life can return it to us for recycling, recondition, reuse or proper disposal. You will be required to pay lowest cost postal service available to ship the apparatus to us. Before shipping please contact us for more important information.

LEGAL ADVICE

It is the customer's responsibility to check relevant laws, directives, regulations and licensing requirements before putting this product into service with an antenna system. You, the customer agree to defend, indemnify and hold harmless Aareff Systems Limited, it's employees and agents, from and against any claims, actions or demands, including without limitation legal and accounting fees, alleging or resulting from improper or unlawful use of this product.

© 2017 AAREFF SYSTEMS LIMITED

ALL RIGHTS RESERVED. Aareff is a trademark of Aareff Transmission Systems. All contents of this document including, but not limited to the images, logos, text, illustrations are protected by copyrights, trademarks and other intellectual property rights which are owned and controlled by Aareff Transmission Systems or by other parties that have licensed their material to Aareff Transmission Systems. This document in part or whole may not be copied, reproduced, republished, uploaded, posted or distributed in any way, including by e-mail, ftp or any other electronic means

Every care has been taken in the preparation of this document, errors in content, typographical or otherwise, may have occurred. If you have comments concerning its accuracy, please contact Aareff Systems Limited (UK)

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