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IKING

800 MHz U

NIVERSAL

TATION

Part No. 242-2008-332

First Printing
September 1994

Part No. 001-2008-300

9-94mwp

Printed in U.S.A.

Summary of Contents for Viking VX Series

Page 1: ...VIKING VX 800 MHz UNIVERSAL STATION Part No 242 2008 332 First Printing September 1994 Part No 001 2008 300 9 94mwp Printed in U S A...

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Page 3: ...tmospheres The transmitted radio energy could trigger blasting caps or cause an explosion DO NOT operate the radio without the proper antenna installed DO NOT allow children to operate or play with th...

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Page 5: ...ON 2 1 INTRODUCTION 2 1 SITE PREPARATION AND ANTENNA INSTALLATION 2 1 2 2 ENVIRONMENT 2 1 2 3 VENTILATION 2 1 2 4 AC POWER 2 1 2 5 BATTERY BACKUP 2 2 2 6 GROUNDING 2 2 PROTECTION GUIDELINES 2 3 2 7 UN...

Page 6: ...ELECT REPEATER TO EDIT 5 1 5 2 ADDING A REPEATER TO A FILE 5 1 6 CIRCUIT DESCRIPTION 6 1 RECEIVER 6 1 INTRODUCTION 6 1 REGULATED VOLTAGE SUPPLIES 6 1 HELICAL FILTER L201 L203 RF AMPLIFIER Q201 6 1 FIR...

Page 7: ...0 5V CONVERTER 6 20 POWER SUPPLY REPAIR AND ALIGNMENT 6 20 6 7 BATTERY BACK UP MODULE 6 21 OPERATION 6 21 CHARGER 6 21 REVERSE BATTERY PROTECTION 6 22 ENGAGING THE RELAY 6 22 OVER UNDERVOLTAGE SHUTDOW...

Page 8: ...ADJUST 7 1 VCO TEST 7 1 FRONT END ADJUSTMENTS 7 1 AUDIO DISTORTION 7 2 7 2 EXCITER ALIGNMENT 7 3 PRETEST 7 3 VOLTAGE MEASUREMENTS 7 3 PROGRAM TUNE UP CHANNEL 7 3 VCO TEST 7 3 TCXO FREQUENCY ADJUST 7...

Page 9: ...MHz 75W UNIVERSAL STATION 9 1 STATION ASSEMBLY 9 1 STATION ENCLOSURE 9 2 TRANSCEIVER MECHANICAL 9 2 CONTROLLER BACKPLANE 9 2 EXTERNAL CONNECTOR BOARD 9 3 POWER SUPPLY FILTER BOARD 9 3 RF INTERFACE BOA...

Page 10: ...E CARD SCHEMATIC 2 OF 2 10 28 10 29 BACKPLANE COMPONENT LAYOUT CARD SIDE 10 29 10 30 BACKPLANE COMPONENT LAYOUT OPPOSITE CARD SIDE 10 29 10 31 BACKPLANE SCHEMATIC 10 30 10 32 800W POWER SUPPLY COMPONE...

Page 11: ...NAL CONNECTOR TERMINAL BOARDS 6 25 6 11 U7 BLOCK DIAGRAM 6 27 6 12 S500 S507 6 33 6 13 J1 ALARM OUTPUTS 6 33 6 14 J2 ALARM OUTPUTS 6 34 6 15 ALARM EXAMPLE 6 35 6 16 THIRD PARTY INTERFACE CARD LOGIC BL...

Page 12: ...TABLE OF CONTENTS CONT D viii LIST OF TABLES 1 1 ACCESSORIES 1 2 1 2 ACTIVE ALARMS 1 7 5 1 REPEATER SETUP PARAMETERS 5 2 8 1 CHIP INDUCTOR IDENTIFICATION 8 6 8 2 CERAMIC CHIP CAP IDENTIFICATION 8 6...

Page 13: ...plugs into the Third Party Interface TPI card jack The speaker provides local audio and is adjusted by the volume control Programming Cable Kit This cable provides the connectors for the Universal Sta...

Page 14: ...Fri day There is also a 24 hour emergency technical sup port telephone number From within the continental United States the Customer Service Department can be reached toll free at 1 800 328 3911 When...

Page 15: ...ning equipment A service representative may be able to suggest a solu tion to the problem so that return of the equipment would not be necessary Be sure to fill out a Depot Repair Request Form 271 for...

Page 16: ...CR2 is the high power indicator and CR3 is not assigned at this time Alarms When the Repeater is in the test mode the safety measures are disabled Therefore if the Universal Station is keyed for an e...

Page 17: ...icator Indicates that the Universal Station s transmitter is keyed by the logic 1 11 3 POWER SUPPLY The power supply is sealed and the line and sup ply fuses are inside If a supply fuse opens the powe...

Page 18: ...ive IAC input 2 Active IAC input 3 Active IAC input 4 Active IAC input 5 Active IAC input 6 Active IAC input 7 Active IAC input 8 Active MAC Processor Alarm HSDB Processor Cable Alarm IRDB Cable Alarm...

Page 19: ...urious Image Rejection 90 dB Audio Squelch Sensitivity 12 dB SINAD Audio Response 1 3 dB TIA Audio Distortion Less than at 0 5W 16 ohms Local Audio Power 0 5W 16 ohms Audio Sensitivity 1 5 kHz Hum Noi...

Page 20: ...INTRODUCTION AND OPERATION 1 8 September 1994 Part No 001 2008 300 This page intentionally left blank...

Page 21: ...not exceed 100 g m3 NOTE If the Universal Station is installed in an area that exceeds these environmental conditions the site should be equipped with air filters to remove dust and dirt that could ca...

Page 22: ...dicators are provided to show Reverse Battery con nection Charger On Off and Battery Fault Figure 2 1 BATTERY BACKUP CONNECTOR B B TEMP ACTIVE CHARGER ON CHARGER FAULT BATTERY BATTERY REVERSE GROUND E...

Page 23: ...ext to reduce the remainder of the current surge and a high powered three element gas tube fires grounding Tip and Ring 2 6 1 PROTECTION GUIDELINES Follow these guidelines for grounding and light ning...

Page 24: ...niversal Stations vertically especially for bottom ventilation slots in high power Universal Stations NOTE Each Universal Station should be grounded separately by connecting a ground bus from the grou...

Page 25: ...and delete files and run programs If you are unfamiliar with any of these actions refer to the MS DOS manual for your computer for more informa tion see Section 5 Follow the computer instructions for...

Page 26: ...3 1 6 COLOR OR MONOCHROME OPERATION The programming software utilizes color for a color monitor and video card However with LCD type displays this may make some information hard to read because the c...

Page 27: ...ystem manual for command explanations 3 3 1 PROGRAM FILES The files that appear in the program directory are needed for program operation 3 4 ALIGNMENT SOFTWARE The software for the Universal Station...

Page 28: ...TIES HELP F1 TRANSFER Revisions Repeater Type Write Setup Params F6 Read Setup Params F5 Setup Parameters F4 RF Data Exciter Receiver Display Mode COM Port PA Quit ALT X DOS Shell Save As Delete Repea...

Page 29: ...filename from a disk can be entered in the highlighted area Then move the cursor down with the arrow key and highlight Ok and press Enter To select an existing file use the arrow keys to move down the...

Page 30: ...s for reference only It is not necessary for repeater operation CHANNEL NUMBER Each Universal Station is programmed with a number of the channel that it is operating on 1 920 If the operating frequenc...

Page 31: ...for transmitting the alarm message in Morse code 1 255 min 0 disabled If more than one alarm is active this is the inter alarm time CROSS REFERENCE The cross reference screen selects the output alarm...

Page 32: ...ed to show the programming of the Universal Station Figure 4 14 READ SETUP PARAMETERS Figure 4 15 READING SETUP Select which Output Alarm is activated by each Input Alarm 8 None 24 None 32 None 40 Non...

Page 33: ...4 18 REVISION VERSION 4 6 TEST Figure 4 19 TEST MENU 4 6 1 POWER AMPLIFIER This menu selection walks through the align ment of the Power Amplifier and RF Interface Board on the computer screen Refer t...

Page 34: ...ILITIES Figure 4 20 UTILITIES MENU 4 7 1 COM PORT This is the COM port used to send and receive data from the TPI card An interface cable connects the Universal Station to the computer 4 7 2 DISPLAY M...

Page 35: ...larms are to be configured 8 Program the Alarms to be configured see Section 4 3 3 press F2 to accept 9 Highlight FILE press Enter 10 Highlight Save press Enter 11 Type in a valid DOS filename For thi...

Page 36: ...mber from 1 20 Channel Number 1 920 Each Universal Station is programmed with the Receive fre quency that it is operating on RF Power Level 25 75 Power level in watts for transmit power Power Source A...

Page 37: ...03 C204 provide bypassing Addi tional filtering of the receive signal is provided by three pole helical filter L204 L206 A section of microstrip on the collector of Q201 and C205 C207 match the impeda...

Page 38: ...frequency of 450 kHz and a bandwidth of 15 kHz used for added receiver selectiv ity The limiter amplifies the 450 kHz signal then limits it to a specific value From the limiter the signal is fed to t...

Page 39: ...rrent does not change and transistor current remains constant R803 decouples the VCO output from AC ground L803 is an RF choke and C807 C808 C810 and C811 provide RF bypass 6 1 11 BUFFER Q208 Q209 A c...

Page 40: ...nd A registers do not change during shifting because the transfer of data to the registers is controlled by ENABLE The 13 LSBs of the R register are double buffered Data is latched into the first buff...

Page 41: ...an be counted In this example the prescaler divides by 65 for 65 x 43 or 2 795 input pulses It then divides by 64 for 64 x 950 43 or 58 048 input pulses The overall divide number K is therefore 58 048...

Page 42: ...er to pro vide filtering of the 12V supply to Q802 R801 and R802 provide transistor bias and C809 provides the capacitance that is multiplied If a noise pulse or other voltage change appears on the co...

Page 43: ...uency is 12 5 kHz for all frequencies selected by this exciter The fV input is produced by dividing the VCO frequency using the prescaler and N counter in U403 The prescaler divides by 64 or 65 The di...

Page 44: ...nterface on J102 pin 16 for detec tion and sampling in the IAC 6 2 7 BUFFER AMPLIFIER Q410 Q411 A cascode amplifier formed by Q410 and Q411 provides amplification and also isolation between the VCO an...

Page 45: ...ion sig nals of relatively equal phase and amplitude is present on both ends of the balancing resistor Therefore no current flows and no power is dissipated in the bal ance resistor If one final faile...

Page 46: ...e plug portion is attached to the Universal Station cabinet P1 Ground Ground return for the RF assembly P2 Ground Ground return for the RF assembly P3 15V DC Supply voltage to Exciter Receiver and Pow...

Page 47: ...m the RF 3 Multiplexer with a logic high Pin 20 LPTT The Logic Push To Talk is an open collector from the Controller It has a sink capability of 20 mA and a maximum voltage rating of 18V The transmit...

Page 48: ...Receiver Pin 31 GROUND Carries ground current between the RFIB and Chassis Backplane Pin 32 36 UNUSED 6 4 3 FAN CONNECTORS J104 J105 The outputs to the fan connectors are 4 pin plug in terminals that...

Page 49: ...WO 126 REFL PWR This capacitive feedthrough pin is the reflected power sense line It is a voltage indicative of the power reflected due to a mismatch The voltage pro duced will typically be such that...

Page 50: ...roller which has the dual role of loading the synthesizer chip and adjusting the power control D A lines for proper output power The data has TTL levels Up to four synthesizer chips and a shift regist...

Page 51: ...Receiver board Pin 16 HS CS RX Not used at this time Pin 17 GROUND A pin that carries ground current between the RFIB and the Receiver board Pin 18 RF CLK The clock controls the Receiver synthesizers...

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