User’s Manual for Repeater MR303D Varia User's Manual for MR303D Varia Id.-Nos.: 152796, 152797 & 154595 M0041A8B.doc Id.-No.
User’s Manual for Repeater MR303D Varia Copyright MIKOM, Buchdorf 2000 All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system, transmitted in any form or by any means, electronical, mechanical photocopying, recording or otherwise, without prior written permission of the publisher. M0041A8B.doc Id.-No.
User’s Manual for Repeater MR303D Varia TABLE OF CONTENTS LIST OF FIGURES AND TABLES 4 LIST OF ABBREVIATIONS 4 CONTENTS OF DELIVERY 5 HEALTH AND SAFETY WARNINGS 5 PREAMBLE 6 1 8 INTRODUCTION 1.1 The MR303D Varia 8 1.2 Functional Description 9 1.3 Downlink 9 1.4 Uplink 2 10 FUNCTIONS AND FEATURES 11 2.1 Configuration of the Connectors 2.1.1 RF Connectors 2.1.2 Power supply 11 11 12 2.2 Configuration of the LEDs 12 2.3 Mechanical Installation 13 2.
User’s Manual for Repeater MR303D Varia LIST OF FIGURES AND TABLES figure 1-1 Block diagram ............................................................................................ 9 figure 2-1 Configuration of the connectors ............................................................... 11 figure 2-2 Installation drawing................................................................................... 13 figure 3-1 Channel setting for Id.No. 152796 & 154595 ..........................................
User’s Manual for Repeater MR303D Varia CONTENTS OF DELIVERY Qty 1 Repeater MR303D Varia Qty 1 User’s manuals for repeater MR303D Varia Qty 1 Set of test protocols consisting of an electrical acceptance test protocol and a safety test protocol regarding the power supply Qty 1 Wall mounting template HEALTH AND SAFETY WARNINGS F Note: F Note: Electrical installation must be carried out in accordance with the safety regulations of the local authorities.
User’s Manual for Repeater MR303D Varia PREAMBLE In cellular systems, repeaters are used to extend the coverage of a base station in regions where, due to topological or structural conditions, weak field strengths disable communication. MIKOM is a leading manufacturer of repeaters, providing excellent electrical characteristics. The repeaters are light-weight and easy to install. MIKOM repeaters provide a preferred solution for extended cellular coverage.
User’s Manual for Repeater MR303D Varia List of international sales offices Allen Telecom Allen Telecom (Australia) P/L 6 Stuart Street Forem France 30500 Bruce Industrial Parkway Cleveland, Ohio 44 139-3996 Padstow NSW 2211 USA Australia Z.I. des Ebisoires 78370 Plaisir France Phone: +1 ( 216 ) 349-8657 FAX: +1 ( 216 ) 349-8408 Phone: +61 (2) 9774-4200 Phone: +33-1-30-79-15-30 FAX: +61 (2) 9774-4500 FAX: +33-1-30-55-55-37 FOREM S.p.A. AT Singapore AT China Via Archimede N.
User’s Manual for Repeater MR303D Varia 1 INTRODUCTION Cellular telephone systems transmit signals in two directions between base stations and mobile telephones within the signal coverage area. If weak signal transmissions occur within the coverage area due to indoor applications, topological conditions or distance from the transmitter, a repeater is used to extend transmission range.
User’s Manual for Repeater MR303D Varia 1.2 Functional Description The MR303D Varia is a repeater operating in the GSM900 frequency range. The operation principle for uplink and downlink is depicted in the following block diagram: figure 1-1 Block diagram 1.3 Downlink Downlink signals are received by the external antenna and fed to the duplexer. The duplexer is the frequency separation unit that splits and recombines uplink (UL) and downlink (DL).
User’s Manual for Repeater MR303D Varia 1.4 Uplink The uplink signals are received by the antenna and fed into the repeater where a pre-selection of the frequency is made. The signals are then converted down to IF by means of a mixer and an IF filter provides the selectivity against other frequencies. After the re-conversion the signals are amplified in an amplifier that provides the output power. The signals are then fed to the antenna via the duplexer.
User’s Manual for Repeater MR303D Varia 2 FUNCTIONS AND FEATURES 2.1 Configuration of the Connectors figure 2-1 Configuration of the connectors 2.1.1 RF Connectors The RF connectors (SMA female) are situated on both sides of the repeater. These ports must be connected to the RF cables of the external antennas to/from the BTS and to/from the mobiles. M0041A8B.doc Id.-No.
User’s Manual for Repeater MR303D Varia 2.1.2 Power supply The socket for the DC supply is located next to the RF connector to/from the BTS. Power supply voltage is 6.7 Vdc, current is 1.6 A typ for Id.-No.: 152796 and 2.5 A for Id.-Nos.: 152797 & 154595. There are two possibilities to provide the MR303D Varia with power: Ø Use external power supply and connection to the DC socket of the repeater. (Use only the power supply that is delivered with the unit).
User’s Manual for Repeater MR303D Varia 2.3 Mechanical Installation Install the MR303D Varia according to the directions provided with the wall mounting sheet. The unit can be mounted horizontally or vertically. The alarm LEDs must point downwards (horizontal mounting) or to the left-hand side (vertical mounting). The unit has a weight of approximately 1.6 kg. figure 2-2 Installation drawing M0041A8B.doc Id.-No.
User’s Manual for Repeater MR303D Varia 2.4 Electrical Installation F Note: Electrical installation must be carried out in accordance with the safety regulations of the local authorities. Due to safety reasons electrical installation must be performed by qualified personnel only. Connection of the cables to/from the BTS and connection of power supply: The cable to the external antenna to/from the BTS and the SMA-connector must be ordered separately if reqired.
User’s Manual for Repeater MR303D Varia Ø Connect one RF cable to the SMA connector to/from mobile. SMA connector to/from mobile Ø Connect one RF cable to the SMA connector to/from the BTS. Ø Connect the DC cable to the repeater DC connector. DC connector SMA connector to/from BTS To avoid excess strain on the cables, the cables must be fastened to the fixing straps with cable clamps. Fixing straps E.g.
User’s Manual for Repeater MR303D Varia Ø Adjust the frequency. Frequency adjust Ø Set the attenuation (at repeater with Id.-No.: 152797 & 154595 only!). Gain setting (Id.-No.: 152797 & 154595) Ø Close the repeater by replacing the cover. Connector to mains Ø Connect the power supply to mains. DC connector M0041A8B.doc Id.-No.
User’s Manual for Repeater MR303D Varia 3 SETTING INTO OPERATION 3.1 Adjusting the Frequency The setting of the start channel and the stop channel must be carried out in accordance to the following tables: figure 3-1 Channel setting for Id.No. 152796 & 154595 figure 3-2 Channel setting for Id.No. 152797 3.2 Setting the Attenuation (Id.-Nos. 152797 & 154595 only) The attenuation can be set by means of a rotary switch, which is located in the centre of the repeater.
User’s Manual for Repeater MR303D Varia 4 APPENDIX 4.1 Electrical Specification MR303D Varia Frequency range UL DL Band adjust In band gain min./typ. Gain ajust Id.No.:152796 Id.No.:152797 Id.No.: 154595 890 – 915 MHz 880 – 905 MHz 890 – 915 MHz 935 – 960 MHz 925 – 950 MHz 935 – 960 MHz BW manually adjustable from 1 to 24.8 MHz in steps of 200 kHz 55 dB / 58 dB 50 dB / 58 dB 50 dB / 58 dB 20dB in 2dB steps 20dB in 2dB steps -max. max. In band ripple ± 2 dB Out of band gain according to GSM 0505 Ver. 4.20.
User’s Manual for Repeater MR303D Varia 4.2 Mechanical Specification Height, Width, Depth Sealing class Weight: approx. 226 x 310 x 61.5 mm IP30 approx. 1600 g figure 4-1 Cabinet drawing 4.3 Environmental and Safety Specifications Specifications for environmental and safety conditions are according to ETS 300 019 (European Telecommunication Standard). For further details refer to the environmental and safety leaflet for MIKOM repeaters. All data is subject to change without notice! M0041A8B.doc Id.
User’s Manual for Repeater MR303D Varia 4.4 Spare part list Part Id.- No. Repeater MR303 D Varia Power Supply 152796 152797 146902 154595 INDEX A International sales offices......................................... 7 Introduction............................................................... 8 Abbreviations ............................................................ 4 Address of MIKOM.................................................. 6 L LEDs.......................................................
