background image

 

Odetics

 Telecom

GPStar

plus

  Model 365

 

 

 

365-8006 

Specifications  2 - 14

 

2.7.4

Event Trigger Output

 

 

This output provides a single pulse at a programmed time, or a repetitive output pulse
with a programmable repetition period. The start of the pulse is synchronized to the
unit's selected time reference, UTC or GPS.

 

 

Connector Identification................................................................... EVTRG

 

Number of Outputs..................................................................................... 1

 

Connector Type ........................................................................ BNC female

 

Output Drive

 

High Level ..................................................... > + 2.0 V into a 50 

 load

 

(> + 3.0 V open circuit)

 

Low Level ...................................................... < + 0.5 V into a 50 

 load

 

Rise/Fall Time (10% to 90% points) ................................................ < 10 ns

 

Synchronization Reference.........................  Synchronized within 100 ns to

 

1 PPS Output at initialization of output

 

Polarity................................................. Rising (Normal) or falling (Inverted)

 

edge on-time, user selected

 

Output Format......................................................Single or repetitive pulse,

 

user selected

 

Pulse Width ....................................................... 1 

µ

s to 8.999999 seconds,

 

user selected

 

Pulse Start Time Range.................... To 1 year with a resolution of 100 ns,

 

user selected

 

Repetitive Pulse Period .................................To 99 hrs, 59 min, 59.99 sec,

 

user selected

 

Repetitive Pulse Stability ............... Same as Reference Frequency Output

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Summary of Contents for GPStarplus 365

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...Firmware 365 3003 Version X4 00 03 X4 10 02 and Up Document 365 8006 Revised July 29 1999 ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Odetics Telecom 1585 S Manchester Avenue Anaheim CA 92802...

Page 3: ...bility for any errors contained herein and reserves the right to make changes to this manual and related equipment without notice or obligation THIS PRODUCT IS NOT AUTHORIZED FOR USE AS A CRITICAL COM...

Page 4: ...art 2 1 Time Locked 2 2 Coasting 2 2 Recovering 2 3 Disciplining Period 2 3 2 2 2 Operating Characteristics 2 3 2 3 MECHANICAL 2 4 2 4 ENVIRONMENTAL 2 4 2 5 POWER REQUIREMENTS 2 5 2 5 1 Power Supply O...

Page 5: ...med Output Characteristics 2 13 2 7 4 Event Trigger Output 2 14 2 7 5 Time Tag Input 2 15 2 7 6 Time Code Output 2 16 Modulated Carrier Output 2 16 DC Shift Output 2 16 2 7 7 Control Monitor and TOD P...

Page 6: ...on 3 2 Antenna Cable 3 3 In Line Amplifier 3 4 Lighting Protection 3 4 Weather Proofing 3 4 Antenna Assembly 3 5 3 4 2 Chassis Installation 3 6 3 4 3 Connecting a Computer or Modem 3 6 Section 4 Getti...

Page 7: ...Leap Second Status 5 15 5 4 2 MENU 2 POSITION 5 16 Antenna Position Mode Selection 5 17 Position Average and GDOP Status 5 18 5 4 3 MENU 3 EVENT TRIGGER TIME TAG 5 19 Event Trigger Output Selection 5...

Page 8: ...IPTIONS 5 28 High Frequency Direct Digital Synthesizer Other Option 1 5 28 Low Frequency Direct Digital Synthesizer Other Option 2 5 29 ECL Direct Digital Synthesizer Other Option 3 5 31 Artisan Techn...

Page 9: ...Odetics Telecom GPStarplus Model 365 365 8006 viii This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 10: ...ABLE OPTIONS OPTION DESCRIPTION OSCILLATOR CONFIGURATION Oscillator 2 High Stability Quartz Ovenized 3 Low Profile Rubidium POWER CHASSIS CONFIGURATION Power 1 85 264 VAC 47 440 Hz 2 20 60 VDC Not com...

Page 11: ...Odetics Telecom GPStarplus Model 365 365 8006 x This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 12: ...Enter GPStarPLUS TIME AND FREQUENCY SYSTEM 0 OdeticsTELECOM X X X X 1 OUT 2 3 A B 1PPS OUT 5 10 MHz IN EVTRG TAG CODE OUT AC DC ANT I O IN 0 1 95 260 VAC CONTRAST Typical unit configuration shown with...

Page 13: ...Odetics Telecom GPStarplus Model 365 365 8006 xii This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 14: ...s one Time Tag input one user programmable Event Trigger output one AC Time Code output with three user selected code formats one DC Shift Time Code output format as selected for AC output three indep...

Page 15: ...S A Selective Availability is the method used by the United States Department of Defense to degrade the accuracy of the C A code It is designed to prevent hostile forces from using the GPS system effe...

Page 16: ...al GPS receiver is operating in Warm Start and has locked on GPS time the oscillator disciplining starts immediately after the warm up period If the internal GPS receiver is operating in Cold Start th...

Page 17: ...ned to retain the accuracy of the output signals The timing output accuracy is indicated by the Time Figure Of Merit TFOM In the first stage of this mode the TFOM is the same value as that while opera...

Page 18: ...iscipline the oscillator The estimator filters out the short term variations inherent in the GPS 1 PPS 2 2 2 OPERATING CHARACTERISTICS Initial Acquisition Time Receiver in Cold Start 60 minutes to acq...

Page 19: ...n a standard 19 equipment enclosure The adapters also function as handles 2 4 ENVIRONMENTAL GPStarplus Operating Altitude 300 m to 4000 m Storage Altitude 300 m to 9000 m Operating Temperature 0 0 C t...

Page 20: ...ction Internally fused Steady State Current 20 VDC input 1 3 A maximum Isolation Voltage Input to ground 500 Vdc Isolation Voltage Input to Output 500 Vdc Connector MS3102Fl4S 7P Mating Connector supp...

Page 21: ...ntenna to the unit and to supply a dc voltage to the LNA The circuitry of the unit s internal receiver is can sustain a short between the antenna interface connector and ground for a period of 10 seco...

Page 22: ...oscillator option installed in the unit Currently available oscillator options are Standard Quartz 1 High Stability Quartz 2 and Low Profile Rubidium Oscillator 3 2 7 1 1 General Characteristics Conne...

Page 23: ...dBc 1 Hz Bandwidth 1 Hz 95 dB 10 Hz 110 dBc 100 Hz 115 dBc 1 kHz 120 dBc 10 kHz 2 7 1 3 Oscillator Option 2 Characteristics High Performance Quartz The following additional Reference Frequency Output...

Page 24: ...o units configured with Oscillator Option 3 Accuracy Error Time Locked 5 X 10 12 1 day average Aging During Coasting 2 X 10 11 day Short Term Stability Time Locked or Coasting tau 1 sec 100 sec 5 X 10...

Page 25: ...Odetics Telecom GPStarplus Model 365 365 8006 Specifications 2 10 This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 26: ...thin 25 meters the internal oscillator has been disciplined the proper antenna cable delay has been selected and Selective Availability SA is active Connector Identification 1 PPS Connector Type BNC F...

Page 27: ...1 second 2 7 3 1 General Characteristics Connector Identification OUT A and B Number of Outputs 2 Connector Type BNC female Output Drive High Level 2 0 V into a 50 load 3 0 V open circuit Low Level 0...

Page 28: ...cle Square Wave Mode 50 Duty Cycle Rate Selection 10 PPS 20 PPS 50 PPS 100 PPS 1k PPS 10k PPS 100k PPS Note The pre programmed 1 PPM 1 PPS and 1M PPS rate can not be selected as a square wave 50 duty...

Page 29: ...rcuit Low Level 0 5 V into a 50 load Rise Fall Time 10 to 90 points 10 ns Synchronization Reference Synchronized within 100 ns to 1 PPS Output at initialization of output Polarity Rising Normal or fal...

Page 30: ...ieved through the RS 232 control interface port Connector Identification TAG IN Number of Inputs 1 Connector Type BNC female Input Voltage Range Normal 0 5 Vdc to 5 0 Vdc Maximum 20 Vdc to 25 Vdc Inpu...

Page 31: ...2 control interface port 2 7 6 1 Modulated Carrier Output Connector Identification CODE OUT AC Number of Outputs 1 Connector Type BNC female Code Format IRIG A IRIG B IRIG G user selected Mark Amplitu...

Page 32: ...onnector DA15P is supplied in the unit s shipping kit The following table identifies the connector contact numbers and signals present at each contact CONTROL INTERFACE CONNECTOR PIN DESIGNATION CONTA...

Page 33: ...nation Port 1 Control Signal Levels RS 232 compatible Baud Rate user selected 9600 19200 38400 Data Bits 8 Stop Bits 1 Parity None 2 7 7 3 Time Of Day Port Details The TOD message is generated every s...

Page 34: ...59 Seconds into the minute M 1 5 Time Mode where 1 GPS Time 2 UTC Time 3 LGPS Local GPS Time 4 LUTC Local UTC Time 5 MAN Manual Time T 4 9 TFOM Time Figure Of Merit where the Estimated Time Error ETE...

Page 35: ...it The signal on connector pin 11 is active and can be used by external equipment to indicate the Time Lock status of the unit I 0 Connector Contact Number 11 Circuit Type Open drain TMOS FET Function...

Page 36: ...s well as commands through the RS 232 control interface port One 1 single ended output port one 1 sinusoid output port and Four 4 differential output ports are provided The user can enable or disable...

Page 37: ...kHz to 15 MHz user selected in 5 Hz steps Output Enable Disable User selected Jitter 5 ns RMS at 1 MHz 10 ns RMS at 1 MHz Rise Fall Time 10 to 90 points 15 ns Compatibility RS 485 and RS 422 Common M...

Page 38: ...lected in 5 Hz steps Amplitude into a 50 load Frequency dependent 100 kHz to 9 MHz 13 0 5 dBm 9 MHz to 15 MHz 5 dBm 13 dBm Spurious Signals 6 dBc at 30 kHz Output frequency 500 kHz to 10 MHz 20 dBc at...

Page 39: ...orts are provided The user can enable or disable the differential output port by means of the front panel keypad as well as through the RS 232 control interface The single ended output ports can not b...

Page 40: ...ve Frequency 1 kHz to 150 kHz user selected in 1 Hz steps Output Enable Disable User selected Jitter 5 ns RMS at 1 MHz 10 ns RMS at 1 MHz Rise Fall Time 10 to 90 points 15 ns Compatibility RS 485 and...

Page 41: ...user can enable or disable the sinusoid output port by means of the front panel keypad as well as through the RS 232 control interface The ECL and TTL output ports can not be disabled The ECL output...

Page 42: ...C Pin 9 N C Mating Connector Type D Subminiature DE9S Wave Shape Square wave Frequency 100 kHz to 15 MHz user selected in 5 Hz steps Coupling AC Jitter 5 ns RMS at 1 MHz 10 ns RMS at 1 MHz Rise Fall T...

Page 43: ...lected in 5 Hz steps Amplitude into a 50 load Frequency dependent 100 kHz to 9 MHz 13 0 5 dBm 9 MHz to 15 MHz 5 dBm 13 dBm Spurious Signals 6 dBc at 30 kHz Output frequency 500 kHz to 10 MHz 20 dBc at...

Page 44: ...tor Identification 13 MHz Connector Type BNC female Wave Shape Sinusoid Frequency Accuracy Same as Reference Frequency Output Paragraph 2 7 1 Amplitude 16 8 1 0 dBm 3 9 Vpp to 4 9 Vpp into a 50 load S...

Page 45: ...Odetics Telecom GPStarplus Model 365 365 8006 Specifications 2 30 This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 46: ...3 INSTALLATION OVERVIEW Installation consists of mounting the antenna at a location that is not shrouded by taller buildings trees or other antennas The connection of the unit to the antenna is via 5...

Page 47: ...t be taken when routing the cable near sources of potential interference such as a power lines high frequency antenna couplers and other transmitting equipment CAUTION Be careful to avoid contact with...

Page 48: ...following table indicates the maximum length of recommended cable type when used with the antenna supplied in Odetics P N 0810137 antenna kit Cable Type Max Length Comments RG 58 Belden 9311 150 ft 4...

Page 49: ...lightning arrester part number IS MR50LNZ 6 is available from PolyPhaser Corporation Minden Nevada USA In order to be effective the arrester must be connected to earth ground using a very low inductan...

Page 50: ...quired for pole and flat surface mounting Figure 3 1 shows the antenna configured for mounting on a pole 5 9 159 mm TNC Antenna Connector Internal Thread 1 14 3 6 91 mm Diameter Figure 3 1 Standard An...

Page 51: ...m a DC power source fabricate the input power cable using the supplied mating connector The connector pin designation is as follows PIN FUNCTION A Chassis Ground B DC Input C DC Input 3 4 3 Connecting...

Page 52: ...cument is for illustration only Verify that the external GPS antenna is connected to the rear panel TNC type connector identified with ANTENNA Note Do not apply power unless a fully operational antenn...

Page 53: ...chronize to GPS and starts to discipline the internal oscillator during the Position Averaging period it is at a reduced accuracy After operating in the Position Averaging mode for a minimum of 1 day...

Page 54: ...ime Locked During the warm up period the user can select the operating conditions of the unit such as time code output format pulse rate output etc 4 4 ANTENNA POSITION MODE SELECTION At initial power...

Page 55: ...cursor to properly load the position even if only one element has been changed 4 5 ANTENNA CABLE DELAY COMPENSATION SELECTION For the most accurate timing it is necessary to compensate for the signal...

Page 56: ...en 9311 RG 59 Belden 9104 RG 213 Belden 8267 and foam dielectric cable such as Heliax manufactured by Andrew Corporation The propagation delay of these cable types is Cable Type Propagation Delay RG 5...

Page 57: ...Odetics Telecom GPStarplus Model 365 365 8006 Getting Started 4 6 This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 58: ...on only or screens with active data fields that can be changed by the user 5 2 2 Display Cursor When a screen parameter is editable a flashing LCD cursor highlights the display character located at th...

Page 59: ...After being selected the menu screen will initially only display information The user can alter the displayed information if allowed by pressing the EDIT key Once the editor is activated the user may...

Page 60: ...etup GPS Receiver Status DAC Status and Control RS 232 Setup Setup Menu Title Mode Firmware Version Information Pulse Rate Output Setup Time Tag Setup Position Average and GDOP Time Mode Local Offset...

Page 61: ...etics Telecom GPStarplus Model 365 365 8006 Display Menus and Controls 5 4 This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Page 62: ...ser can Select the time reference of the output time UTC Local UTC GPS or Local GPS Specify the local time offset from UTC Specify the antenna system delay compensation or internal offset Screen 3 Tim...

Page 63: ...me Recovery position mode Known Position Averaging or Dynamic Change the Latitude Longitude and Elevation Screen 2 Position Average and GDOP Active only when the Position Averaging mode has been selec...

Page 64: ...al oscillator the standard error of measurement of the internal timing and the control word sent to the digital to analog converter that controls the frequency of the internal oscillator Through this...

Page 65: ...tting is the control value sent to the digital to analog converter that controls the internal oscillator The number ranges from 0 to 65535 Caution During normal operation the DAC value should not be a...

Page 66: ...e Mode Accuracy Time Figure of Merit of timing output Current date and time Synchronization status Satellite tracking information 5 4 1 1 Synchronization Mode Selection Normal Mode Under normal operat...

Page 67: ...8 The Time Coasting or Time Locked message on Time Menu 1 screen is replaced with Manual and the TFOM value changes to 9 after the Manual Time Mode is enabled Set the Date and Time as follows Use the...

Page 68: ...te The time and date can be referenced to either UTC or GPS time In order to synchronize to either UTC or GPS time the unit must operate in the normal synchronization mode that is not in the Manual Ti...

Page 69: ...ffset hours Press the Enter key to accept the selected hours of Local Offset Press the Menu key to exit the edit mode or proceed to the next paragraph 5 4 1 4 Internal Offset Selection The internal of...

Page 70: ...o provide one of the following user selected time code output signals IRIG A IRIG B or IRIG G Press key 1 until Time Menu 3 of 5 is selected Time Code Selection Time Code Format IRIG A While viewing t...

Page 71: ...month An hour is normally added on the fourth Sunday of April when Daylight Saving Time goes in effect and an hour is normally subtracted on the fourth Sunday of October when Standard Time goes in eff...

Page 72: ...in June or December Leap Second adjustments are automatically implemented in the unit When the Leap Second occurrence is armed the unit s UTC time will automatically update within 1 minute after midni...

Page 73: ...raging mode Position solution data is only used when the GDOP is 5 00 Note Timing accuracy will be degraded while operating in the Position Averaging mode even if the antenna remains stationary This i...

Page 74: ...ot accurately known Select Known if the antenna position is accurately known Mode Pos Averaging Elev 00000 00 m Lat N 33o 48 6127 Lon W 117o 54 6167 Press the Enter key to accept the selected mode If...

Page 75: ...ayed position After averaging 86400 samples the mode status automatically changes to Off and the screen becomes inactive The position mode refer to paragraph 5 4 2 1 automatically changes to Known GDO...

Page 76: ...and use the arrow keys and the numeric keys to select the Start Time of the output pulse Note The entered Start Time must be a future time in order for the Event Trigger function properly Press the En...

Page 77: ...eginning In the Burst mode time tags are also stored in a buffer When the buffer reaches its limit no additional time tags are stored To select the mode of operation While viewing the Event Trigger Ti...

Page 78: ...ion Press the Edit key Press the arrow keys to select the frequency of Port 1 1 MHz 5 MHz 10 MHz or Off Press the Enter key to accept the output frequency selection Press the Menu key to exit the edit...

Page 79: ...epetition rate Press the Menu key to exit the edit screen or select the pulse polarity Use the arrow keys to select the desired polarity Normal or Invert Press the Enter key to accept the selected pul...

Page 80: ...ed For example if the displayed value is 3 00E 008 it indicates that 67 of the measured differences between the GPS receiver s 1 PPS and the 1 PPS derived from the internal oscillator were less than o...

Page 81: ...to select the 1PPS Beep status On or Off Press the Enter key to accept the selected status 5 4 6 2 Receiver Operating Status and Control Press key 9 until Maintenance Menu 2 of 5 is selected GPS Rece...

Page 82: ...dit key Use the arrow keys to select the Cold Start mode Press the Enter key to accept the selection GPS Receiver Status Cold Start Forces Collection of New Almanac Press the Enter key and observe the...

Page 83: ...e arrow and number keys to select a new DAC value Press the Enter key to accept the new DAC value To exit the edit screen press the Menu key If the most recent DAC value is not known the value can be...

Page 84: ...ccept the selection Menu Title On Menu Title Display Duration 2 Seconds Press the Menu key to exit the edit screen or continue to set the display duration Use the number keys to select the display dur...

Page 85: ...Hz Sinusoid On Differential Off This screen indicates the Factory Default settings for the HF Synthesizer version output frequency of 1 MHz 1000000 Hz the Sinusoid output port enabled On and the Diffe...

Page 86: ...Frequency 100 000 Hz Differential Off This screen indicates the Factory Default settings for the LF Synthesizer version output frequency of 1 kHz 100000 Hz and the Differential output port disabled Of...

Page 87: ...rior to the removal of input power To change the output frequency or to enable disable the output ports Press the Edit key to enter the edit mode Synthesizer Frequency 01 000 000 Hz Sinusoid On Differ...

Page 88: ...or purchase order Warranty terms and conditions are explained in the Standard Terms and Conditions of Sale provided with the quotation If you need more information on the warranty period or warranty t...

Page 89: ...Odetics Telecom GPStarplus Model 365 365 8006 Warranty This page left blank intentionally Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 90: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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