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Eddystone S7605 Installation And Operation Manual

500w – 1kw – 2kw low power fm transmitters
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Eddystone Broadcast Ltd.
26, Arden Rd.
Arden Forest Industrial Estate
Alcester, Warwickshire
B49 6EP, England
Tel. 44 (0)1789 762278
Fax. 44 (0)1789 766033
www.eddystone-broadcast.com
Print Date 12/05/15
Eddystone Broadcast
S7600 Series
S76005 – S7601 – S7602
500W – 1kW – 2kW
Low Power
FM Transmitters
Installation
Operation
Issue 8
S7600-00MA-08
May 2015
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Page 1 of 32
S7600-00MA-08

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  • Page 1 FM Transmitters ---- Installation Operation ---- Issue 8 S7600-00MA-08 May 2015 ---- Eddystone Broadcast Ltd. 26, Arden Rd. Arden Forest Industrial Estate Alcester, Warwickshire B49 6EP, England Tel. 44 (0)1789 762278 Fax. 44 (0)1789 766033 www.eddystone-broadcast.com Print Date 12/05/15 Page 1 of 32...
  • Page 2 Intentional blank page Print Date 12/05/15 Page 2 of 32 S7600-00MA-08...

  • Page 3: Table Of Contents

    Index SECTION ONE : INTRODUCTION 1.1 : GENERAL DESCRIPTION………………………………………………………………… Page 5 1.1.1 E2021 300W Amplifier Module……………….…………………………………………… Page 5 1.1.2 E2088/E2322 Power Supply Module…………………………………………………..…. Page 6 1.1.3 E2023 Transmitter Controller Unit……………………………..…………………………. Page 6 1.1.4 E2024 Splitter/Drive Changeover Unit………………...……………………..…………… Page 7 1.1.5 E2025 Combiner Unit………………………………………………………………...…….. Page 7 1.2 : VARIANTS AND OPTIONS…………………………………………………………………...
  • Page 4 3.2 : MANUAL CONTROL……………………………………………………………………….. Page 30 3.3 : MANUAL MONITORING…………………………………………………………………... Page 30 3.4 : AUTOMATIC CONTROL………………………………………………………………….. Page 31 3.4.1 Exciter/Drive Control and Monitoring…………………………………………………….. Page 31 3.4.2 Muting and Reduced Power Operation…………………………………………………… Page 31 Bound at Rear S76005-01 500W Front and Rear Panel Views………………………..……….……. S7600-04GA S76005-02 500W Front and Rear Panel Views………………………..……….…….

  • Page 5: Section One : Introduction

    SECTION ONE : INTRODUCTION ! CAUTION ! These Transmitters operate at high RF power levels, internal supply energy levels and mains supply current levels. They also incorporate devices containing toxic BeO. Installation, operation and maintenance of this unit must therefore, only be carried out by suitably qualified personnel, familiar with and fully utilising the safety procedures such equipment demands.

  • Page 6: E2088/E2322 Power Supply Module

    Each Amplifier also has its own front panel ‘mute’ switch, which is mechanically interlocked so that it has to be operated before the module can be removed. All other signal, 50V dc supply and control connectors are at the rear of the unit. The control connectors go to one of two independent internal Transmitter control buses.

  • Page 7: E2024 Splitter/Drive Changeover Unit

    rear panel (E2023-03/04) with an additional TCP/IP monitor/control port on the rear (E2023-04 only). When the RS232 port is provided on the rear panel, no parallel monitoring is available. If a fault should occur within the E2023, manually operated switches on the E2024 Splitter/Drive Changeover Unit can be used for basic control of the Transmitter.

  • Page 8: Variants And Options

    Low Power potentiometers) to set the power level of the E2021 Amplifier Modules and thus the final Transmitter output power. One control voltage is used for the Amplifier Modules on the right hand A side of the Transmitter and the other for the Amplifier Modules on the left hand B side. Rear panel connectors give analogue dc output levels indicating the forward and reverse powers generated.

  • Page 9: Technical Specifications

    1.3 TECHNICAL SPECIFICATIONS The S7600 range of FM Transmitters is designed to meet or exceed ETSI Standards:- EN 301 489-01 : ERM/EMC for Radio Equipment, Part 1, Common Technical Requirements. EN 301 489-11 : ERM/EMC for Radio Equipment, Part 11, Specific Conditions for FM Transmitters. EN 302 018-02 : ERM (Spectral Occupancy) for the FM Radio Broadcast Services.
  • Page 10 Incidental Synchronous (AM due to FM) :- Amplitude Not greater than 2% with a peak deviation of ±40kHz at a modulation Modulation frequency of 500Hz. Asynchronous (residual AM due to hum and noise with no FM modulation) :- Not greater than 1% when measured unweighted in a 20Hz to 20kHz bandwidth.

  • Page 11: Section Two : Installation

    SECTION TWO : INSTALLATION ! CAUTION ! These Transmitters operate at high RF power levels, internal supply energy levels and mains supply current levels. They also incorporate devices containing toxic BeO. Before commencing installation, it is recommended that the complete INSTALLATION section is read and understood. The instructions should then be strictly followed, by suitably qualified personnel, otherwise sub- standard or even dangerous operation may result.

  • Page 12: Rack Mounting

    Typical Description Function Quantity Length RF input and dummy load leads. Low loss 50Ω RF coaxial cable, rated as req’d in excess of Exciter/Drive output power at maximum ambient temperature. Exciter/Drives’ dummy load. Coaxial, 87.5 – 108MHz, 50Ω load with suitable free connector, rated in excess of Exciter/Drive output power at maximum ambient temperature.

  • Page 13: External Conections

    2.2 EXTERNAL CONECTIONS 2.2.1 Mains Supply Connectors These are two independent 6 Way plugs at the rear of the Supply Disconnector section, CON02 and CON03. Having two enables use of independent ‘A/B’ power sources with the same or different phases. Each supply must be single phase, 176V to 264V AC, 47 - 63Hz. The maximum current drawn from each supply (at 230V AC) is in the order of 2A (for the S76005-02), 4A (for the S76005-01 or S7601) or 8A (for the S7602).

  • Page 14: Rf Output Antenna Connector

    2.2.2 RF Output Antenna Connector ! CAUTION ! When operating, high RF Voltages are present on this connector. Always ensure when making connections here, or working on any load connected, that the Transmitter’s front panel Supply Disconnector is switched to ‘off’ (i.e. at O) and is preferably padlocked in that position. This is a 50Ω...

  • Page 15: Parallel (Standard) Or Rs232 Serial Remote Control Dte Connector

    Each lead terminates in a separate 9 Way free D plug at the E2023 end which is wired as follows :- Pin 1 RS232 Data from Drive (not enabled) Pin 2 Ground Pin 3 Prefer Drive from Rem. Control Momentary low > approx. 1sec Pin 4 Slow Status Monitor from Drive Continuous low >2secs registers ‘good’...

  • Page 16: Second Transmitter Remote Control Connector

    2.2.8 Second Transmitter Remote Control Connector This is a 15 Way D socket SK05 at the rear of the E2023 Control Unit. It is used to enable externally derived automatic control of Transmitter muting and high/low power level setting. Multi-core screened cable, not exceeding 3 metres in length, should be used for the interconnecting lead.

  • Page 17: Rs232 Serial Control And Monitor (Com) Connector

    IP address automatically (it’s quite common to have networks configured to use ‘DHCP’, which provides these addresses on demand). The address to which a device has been assigned can then be determined and, if required, be overridden with a desired fixed value, using Eddystone supplied software.

  • Page 18: Setting Up Procedures

    2.3 SETTING UP PROCEDURES 2.3.1 Fuses If any problems occur after the Transmitter has been installed and switched on, fuses may need to be checked and possibly replaced. However, a blown or open-circuit resettable fuse would generally indicate the presence of a fault, which would need correcting. The type, function and access to fuses is as follows : Type Function...

  • Page 19: Output Power Level And Frequency Adjustment

    0.75A Hold For protection of the dual fan On Fan Connector board inside top rear RXE 60V cooling unit. of Transmitter. Resettable Fuses If the fuse goes high impedance, Note this fuse will automatically reset if the fan, which it supplies, will not the front panel Disconnector switch is operate and the FANS display on temporarily set to ‘off’...

  • Page 20: Reverse Power Trip Level Adjustment

    10) Slowly increase the selected Exciter/Drive(s) output power until 500W (on S76005) 1kW (on S7601) or 2kW (on S7602) is just obtained. To ensure complete accuracy, an external calibrated power meter should be used to measure this output power. Increase the input level by a further 1dB (approximately 20%).

  • Page 21: Serial Remote Control Baud Rate Setting

    The preset control (marked ‘REV TRIP’) is at the rear left hand side of the printed circuit board. Care must be taken that none of the other four preset controls on the board are altered. Adjust the control anti-clockwise until the output power reaches a maximum. Note that if this preset control is ever advanced too far clockwise, this may cause a decrease in output power with less than 13, 25 or 50W reverse power, i.e.

  • Page 22: Serial Remote Control And Monitoring

    However, a PC program with a dedicated textual and/or graphical user interface is required for proper implementation of a remote control and monitoring system. Eddystone Broadcast should be contacted for further information regarding such programs and hardware implementations using the RS232 port directly or via USB or TCP/IP adaptors.
  • Page 23 Remote Input Status Requests (third byte sent from controller after ? command) Title Function ASCII Op_Stat Revert output status Amp1_Stat Revert amplifier 1 status Amp2_Stat Revert amplifier 2 status Amp3_Stat Revert amplifier 3 status Amp4_Stat Revert amplifier 4 status Amp5_Stat Revert amplifier 5 status Amp6_Stat Revert amplifier 6 status...

  • Page 24: Reverted Status Monitor Information

    2.4.3 Reverted Status Monitor Information The status of the Transmitter is reverted in response to a ? command (see section 2.4.2). After the third byte is echoed back to the remote control unit, a further fifteen bytes are sent immediately from the E2023, with no delays between individual bytes (each 1 start, 8 data, 1stop, no parity).
  • Page 25 Reverted System Data Block (15 extra bytes reverted in response to # ? Y sequence) Title Status Possible Values (ASCII) Tx_Data1 Tx data status request byte third byte echo fixed at Y Tx_Data2 Tx system normal status Tx_Data3 Tx forward power status N L F X Tx_Data4 Tx reverse power status...
  • Page 26 Reverted Output Data Block (15 extra bytes reverted in response to # ? 0 sequence) Title Status Possible Values (ASCII) Op_Data1 Output data status request byte third byte echo fixed at ASCII 0 Op_Data2 Output Forward Power Level MSB (kW) Op_Data3 Output Forward Power Level MSB-1 (kW) Op_Data4...

  • Page 27: Section Three : Operation

    SECTION THREE : OPERATION Once installed and set up as described in Section Two, manual operation is limited to the two switches on the E2024 Splitter/Drive Changeover Unit. Various forms of automatic control can be provided using the E2023 Controller Unit. This unit also provides comprehensive monitoring of power, current and temperature levels etc.

  • Page 28: E2023 Transmitter Controller Unit

    3.1.4 E2023 Transmitter Controller Unit Marked Type Function SYSTEM LED Display Red indicates one or more system conditions are abnormal NORMAL (and should be cleared). Green indicates all significant system conditions are normal. Amber indicates ‘Power-on-Reset’ period CONTRAST Adjustable Pot. (1T) To set the contrast of Controller’s liquid crystal display (LCD) for best contrast in the prevailing viewing and ambient temperature conditions.

  • Page 29: E2024 Splitter/Drive Changeover Unit

    3.1.5 E2024 Output Splitter/Drive Changeover Unit Marked Type Function DRIVE A B LED Displays Green LED indicates which Exciter/Drive is connected to the Transmitter input. The other LED remains off. AUTO, Lockable Toggle To manually select Exciter/Drive A or B or (in AUTO) to enable SELECT A B Switch (3 Way) the selection to be made directly by the E2023 Controller...
  • Page 30 3.2 MANUAL CONTROL Simple manual control of the Transmitter can be performed using the three way lockable toggle switches on the front of the E2024 Splitter/Drive Changeover/Output unit. The AUTO – MUTE – START switch can be used to manually mute or start (demute) the Transmitter. The AUTO –...

  • Page 31: Automatic Control

    3.4 AUTOMATIC CONTROL The E2023 Controller Unit also enables various forms of automatic control such as dual Exciter/Drive changeover, muted/reduced power operation etc. or any normal combination of them. For dual Exciter/Drive changeover, the E2024 AUTO – SELECT A – SELECT B switch must be set to AUTO.
  • Page 32 When the E2024 AUTO – MUTE – START switch is set to MUTE or START (i.e. manual control), the display shows the actual switch setting and the manual setting of high/low power (‘Manual=’). The latter can only be done by an internal link (i.e. this setting of high/low power cannot be done from the front panel).

This manual is also suitable for:

S7601S7602

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