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HC2

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User  Manual

Rev. 1.1L - 07/07/03

8. Internal Description

The hybrid coubler HC2 is a modularized device, in which different section are
designed to perform a particular function.

RF Splitter

RF Combiner

CPU

Display, Keys

.

RF input
from exciter

Telemetry,
RS232,
IIC
Interlock ...

RF input
from Amp 1

RF input
from Amp 2

RF output
to Amp 1

RF output
to Amp 2

RF output
to antenna

This chapter give the necessary indications to identify the modules and to
understand their functionalities.

8.1

Modules identification

The following figure represents a schematic upper view of the hybrid coupler. The
different components are given in the following.

4

5

6

7

1

2

3

1 Fans
2 CPU section
3 Fans control relay
4 RF combiner
5 Transformer
6 RF splitter
7 Remote board

Summary of Contents for HC2 LCD

Page 1: ...Manufactured by Italy HC2 LCD User Manual Volume 1...

Page 2: ...No part of this manual may be reproduced memorized or transmitted in any form or by any means eletronic or mechanic including photocopying recording or by any information storage and retrieval system...

Page 3: ...9 5 1 Preparation 9 5 2 Operation 9 5 3 Software 10 6 Controls Indicators e Connectors 19 6 1 Front Panel 19 6 2 Rear panel 20 6 3 Connectors Description 21 7 Technical Specifications 23 7 1 Physical...

Page 4: ...HC2 ii User Manual Rev 1 1L 07 07 03 This page was intentionally left blank...

Page 5: ...t assume responsibility for injury or damage resulting from improper procedures or practices by untrained unqualified personnel in the handling of this unit Please observe all local codes and fire pro...

Page 6: ...HC2 2 30 User Manual Rev 1 1L 07 07 03 This page was intentionally left blank...

Page 7: ...d to R V R within five 5 days from its receipt To claim your rights under this warranty a Contact the dealer or distributor where you purchased the unit Describe the problem and ask if he has an easy...

Page 8: ...tion all the problems found and a copy of your original invoice establishing the starting date of the warranty Replacement and warranty parts may be order from the following address Be sure to include...

Page 9: ...y and observe for breathing if not breathing begin artificial breathing Figure 2 tilt head pinch nostrils make airtight seal four quick full breaths Remember mouth to mouth resuscitation must be comme...

Page 10: ...vated If medical help will not be available within an hour and the victim is conscious and not vomiting give him a weak solution of salt and soda 1 level teaspoonful of salt and 1 2 level teaspoonful...

Page 11: ...mitter based on a hybrid coupler scheme like HC2 foresees that the used amplifiers shall produce the same RF power that will be added with the same phase Possible differences in the power level or pha...

Page 12: ...e is signalled by a yellow LED on the front panel being lit The different working parameters are made available for the remote control applications on the telemetry connector as voltage levels that ar...

Page 13: ...N type input of the splitting section of the combiner Connect two cables between the output N connectors of the splitting section of the combiner and the RF input of two suitable amplifiers Connect t...

Page 14: ...is chapter describes the way the microprocessor system controls the hybrid coupler and how the user can interact with it Note that the user can give commands to the device only when it s set in LOCAL...

Page 15: ...ware will remain indefinitely in this default screen until the user pushes the ESC button Pushing the ESC button the user will be presented with the menu selection screen from which the other screens...

Page 16: ...permit the proper cooling of the device and then sends a signal to the relays of the blowers to turn them off too Each two hours while the machine is OFF the software enables the blowers for a while t...

Page 17: ...not meaningful for a hybrid coupler 5 3 4 Threshold setting menu Set As described in the introduction the amplifier offers a maximum of three user settable alarms For each of them one of the working...

Page 18: ...olds settings are for a HC2 1 PwrGd 1 200 W 20 X 1000W PwrGd2 500 W 50 X 1000W RflWar 70 W 70 X 100W 5 3 5 Alarms Menu Alm This screen gives to the user information regarding the status of the protect...

Page 19: ...ss of I2 C communication is relevant when the coupler is connected with other RVR devices that use this protocol We raccomend not to change this parameter if not necessary The visualitation mode can b...

Page 20: ...n t surpass its nominal value full scale When this happens the foldback voltage is rised proportionally to the amount the threshold is surpassed and a yellow LED is lit on the front panel signalling t...

Page 21: ...d be noted with Dis Disabled While the amplifier is temporarily shut off for an alarm the yellow WAIT LED is lit and the cause of the intervention of the protection system is written on the display Wh...

Page 22: ...HC2 18 30 User Manual Rev 1 1L 07 07 03 This page was intentionally left blank...

Page 23: ...e 6 FOLDBACK Yellow LED indicating the intervention of the foldback function automatic reduction of the output power if connected to an exciter that implements the function for example the PTX LCD 7 C...

Page 24: ...er 9 OUTPUT 1 Power splitter Output 1 7 8 EIA Flange to drive Power Amplifier A 10 OUTPUT 2 Power splitter Output 2 7 8 EIA Flange to drive Power Amplifier B 11 INPUT 1 Power Combiner s Input 1 N type...

Page 25: ...AULT Dig Out OC Active for Fault Alarm presence 18 OC_SET3 Dig Out OC Active when SET3 threshold surpassed 19 Ch_3 Disabled 20 IN_OFF Dig In OFF command 21 GND GND 22 OC_SET2 Dig Out OC Active when SE...

Page 26: ...HC2 22 30 User Manual Rev 1 1L 07 07 03 6 3 3 I2 C Connector Type DB9 Female Used for I2 C networking 1 NC 2 SDA Serial Data 3 SCL Serial Clock 4 NC 5 GND GND 6 NC 7 NC 8 NC 9 NC 1 6...

Page 27: ...7 2 Electrical Specifications AC power supply 117 230 V 50 60 Hz Cooling system forced ventilation Frequenci range 87 5 MHz 108 MHz Maximum output power 2 kW HC2 2 version 1 kW HC2 1 version Splitter...

Page 28: ...HC2 24 30 User Manual Rev 1 1L 07 07 03 This page was intentionally left blank...

Page 29: ...RF input from Amp 1 RF input from Amp 2 RF output to Amp 1 RF output to Amp 2 RF output to antenna This chapter give the necessary indications to identify the modules and to understand their functiona...

Page 30: ...on type scheme and is designed with strip lines and coaxial cables It includes the circuits to adjust the phases of the output feeding the external amplifiers to maximize the overall output power and...

Page 31: ...e relays can be supplied either by the HC2 or by external power and for each user input a contact is provided that shall be shorted to ground to activate the signal ON OFF and ALARM RESET are impulse...

Page 32: ...g the coupler in both cases 8 3 1 Capacitors on the splitter circuit 1 Remove the upper cover of the coupler 2 Switch on the transmitter having the exciter set on the working frequency and at minimum...

Page 33: ...sted on the whole FM band start executing the procedure at 98 0 MHz and then repeat it at 87 5 MHz and 108 0 MHz until the best tradeoff is met If the adjustment is done because one of the amplifiers...

Page 34: ...iable capacitors are present 1 2 3 and 4 for the amplifier A 5 6 7 and 8 for the amplifier B see the silk graph on the rear of the coupler for reference Please remember to use an isolated scrwedriver...

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