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INTRODUCTION AND OPERATION

1-7

September 1994

Part No. 001-2008-300

SPECIFICATIONS

GENERAL

Dimensions

8.7" H x 17" W x 20.9" D

Weight

58.6 lbs. (26.58 kg)

AC Voltage/Frequency

100-240V AC/47-63 Hz

AC Current

0.38A (Standby), 2.8A (75W), 1.7A (25W)

AC Input Power

45W (Standby), 328W (75W), 199W (25W)

DC Current at 26.5V DC

12A (75W), 6.5A (25W)

Number of Channels

1 (Synthesized, programmable)

Frequency Range

806-824 MHz Receive, 851-869 MHz Transmit

Channel Spacing

25 kHz

Channel Resolution

12.5 kHz

Temperature Range

-30

C to +60

C (-22

F to +140

Duty Cycle

Continuous

RECEIVER

Frequency Band

806-824 MHz

12 dB SINAD

0.35

Signal Displacement Bandwidth

2 kHz

Adjacent Channel Rejection

-85 dB

Offset Channel Selectivity

-20 dB

Intermodulation Rejection

-80 dB

Spurious & 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 & Noise Ratio

-45 dB

Frequency Spread

6 MHz

Frequency Stability

1 PPM -30

C to +60

C (-22

F to +140

TRANSMITTER

Frequency Band

851-869 MHz

RF Power Out

75W minimum (Default setting), 25W (Variable Set Point)

Spurious Emissions

-90 dBc

Harmonic Emissions

-90 dBc

Audio Deviation

3.5 kHz

Sub-Audible Data Deviation

1 kHz

CWID Deviation

1 kHz

Audio Response

+1/-3 dB TIA

Audio Distortion

Less than 2%

Hum & Noise (TIA)

-45 dB

Frequency Spread

6 MHz

Frequency Stability

1 PPM -30

C to +60

C (-22

F to +140

Emission Designators

14K0F3E, 16K0F3E, 14K0F3D, 16K0F3D, 14K0F1D, 16K0F1D

1. These general specifications are intended for reference and are subject to change without notice. Contact the Systems
Applications consultants for guaranteed or additional specifications.

Содержание Viking VX Series

Страница 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...

Страница 2: ......

Страница 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...

Страница 4: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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