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Sea Tel, Inc. 
4030 Nelson Avenue 
Concord, CA   94520 
Tel:  (925) 798-7979 

Fax: (925) 798-7986 
Web: : 

www.cobham.com\seatel

 

 

Sea Tel Europe 
Unit 1, Orion Industrial Centre 
Wide Lane, Swaythling 
Southampton, UK S0 18 2HJ 

Tel:  44 (0)23 80 671155 
Fax: 44 (0)23 80 671166 

Web: 

www.cobham.com\seatel

 

Sea Tel Inc doing business as Cobham SATCOM

 

April 21, 2011   

Document. No. 132628   Revision  B

 

OPERATORS MANUAL  

FOR SEA TEL DAC-2302 ANTENNA CONTROL UNIT 

 
 
 

 

 

 

 

 

 

 

Antenna Serial Number:  ________________________________ 
DAC-2302 Serial Number:  _______________________________ 

 

 

Summary of Contents for DAC-2302

Page 1: ...e Swaythling Southampton UK S0 18 2HJ Tel 44 0 23 80 671155 Fax 44 0 23 80 671166 Web www cobham com seatel Sea Tel Inc doing business as Cobham SATCOM April 21 2011 Document No 132628 Revision B OPERATORS MANUAL FOR SEA TEL DAC 2302 ANTENNA CONTROL UNIT Antenna Serial Number ________________________________ DAC 2302 Serial Number _______________________________ ...

Page 2: ...nt supervisory software to continuously monitor the pedestal pointing accuracy and use it to control the Transmit Mute function of the satellite modem to satisfy the provisions of FCC 47 C F R 25 222 a l iii A copy of the FCC Declaration of Conformity for this equipment is contained in the Antenna Manual for your system Copyright Notice All Rights Reserved The information contained in this documen...

Page 3: ... Status Menus 2 9 2 1 5 SETUP Parameter display and entry menus 2 10 2 2 TRACKING OPERATION 2 10 2 2 1 DishScan Operation 2 11 2 1 SEARCHING OPERATION 2 11 2 1 1 Default Standard Box Search Pattern 2 11 2 1 2 Inclined Orbit Search Pattern 2 12 2 1 3 No Gyro Search Pattern 2 13 2 2 AUTO POLARIZATION OPERATION 2 14 2 3 RADOME ASSEMBLY OPERATION 2 14 3 SETUP COMMIF AND HTML PAGES 3 1 3 1 CONFIGURING ...

Page 4: ...DAC2302 Operator Manual Table of Contents iv This Page Intentionally Left Blank ...

Page 5: ...If you are targeting a different satellite you will need to change the tracking parameters and then target the desired satellite refer to the operation section for the Satellite menu below A If no signal is found The Tracking LED will flash for a short period of time per the SEARCH DELAY parameter followed by the Search LED coming ON The ACU will automatically move the antenna in a spiral SEARCH p...

Page 6: ... OFF selection Searching ON OFF selection Error status and Remote Auxiliary value NUMERIC KEY PAD Used to key in numeric values in all entry menus NUMBERS Key in numeric value of desired entry May be used in conjunction with the Decimal Point DECIMAL POINT Used with the Numbers to enter whole and tenths of degrees or MHz KHz to enter tuning frequency C Key Clear an incorrect numeric entry Special ...

Page 7: ...RCHING Green LED ON indicates that the ACU is Searching for a satellite signal whose AGC value is greater than the Threshold value When a satellite signal is found SEARCH will go OFF and TRACKING will come ON If an adequate satellite signal is not found during the Search SEARCH will blink as the antenna re targets to the desired satellite If an adequate satellite signal is still not found then TRA...

Page 8: ...DAC2302 Operator Manual Quick Start Operation Introduction 1 4 This Page Intentionally Left Blank ...

Page 9: ...de entry mode Used to calculate Azimuth Elevation and Polarization for the desired satellite position Key in numeric latitude in decimal form Tenths may be entered and will be used internally but the display will round off to nearest whole degree Press N S E W to toggle North South hemisphere Press ENTER to set the new latitude Latitude should update automatically once the system establishes a pro...

Page 10: ...be initially set whenever the ACU power is turned ON Key in the heading value of the Ships Gyro Compass and press ENTER HDG display may be a single value or left and right values depending on the GYRO TYPE parameter When Left and right values are displayed left is the response from the pedestal and right in the local input from the gyrocompass During subsequent normal operation the HDG value shoul...

Page 11: ...stem will not be able to decode the downstream NID unless all of the other tracking receiver parameters are set correctly i e Freq Baud Tone FEC etc Key in the numeric longitude of the satellite you want to target even if it is the same value as is presently displayed press N S E W to toggle the E W hemisphere as necessary and then press ENTER Threshold entry mode Press ENTER from the SAT Sub menu...

Page 12: ... will tune the MHZ to 950 2150MHz and then tune the KHZ value in the next step If your ACU has a 70MHz SCPC receiver you will tune the MHZ to 52 88MHz and then tune the KHZ value in the next step If your ACU has a 140MHz SCPC receiver you will tune the MHZ to 104 176MHz and then tune the KHZ value in the next step The UP DOWN arrow keys may be used to increment decrement the frequency in 1 MHz ste...

Page 13: ...parameter defines whether the system operates in DVB mode or SCPC mode Press ENTER from the LNB VOLTAGE sub menu to access the Forward Error Correction Sub Menu Default setting AUTO automatically scans through all the standard DVB DSS FEC rates Use the UP DOWN arrow key to toggle through the available fixed FEC rates to select one of the fixed rates If the satellite does not generate an NID but do...

Page 14: ...hat s the number one decimal point the number two the number three decimal point the number four NOTE Most reference sites lists a satellite s NID in decimal format the Tracking Receiver requires a four digit HEX Value entry Example A decimal NID value of 4100 would be entered as HEX NID value 1004 Press ENTER to set the desired NID The ACU will automatically send a satellite target command to the...

Page 15: ...esents the True North Azimuth position of the antenna This value is the sum of ships heading HDG antenna relative REL position and your Azimuth Trim Parameter AZ HDG REL AZ TRIM If AZ 360 the display will subtract 360 Key in the desired numeric value of Azimuth you want to target the antenna to and then press ENTER You may also step or slew Azimuth by using the UP and or DOWN arrow keys To STEP th...

Page 16: ...tenna s azimuth position relative to the bow of the ship ranging from 0 359 9 with 000 0 indicating when antenna is pointed in line with the bow The REL position of the antenna is used to set Radiation Hazard Blockage Mapping points refer to AZ LIMIT settings Key in the desired numeric value of Elevation you want to target the antenna to and then press ENTER Polarization entry menu Press ENTER fro...

Page 17: ...splayed available tracking band selections are defined by the TRACK DISP parameter Refer to Chapter 5 of this manual for detailed description of this parameter and refer to your Antenna Manual for the proper default parameter particular to your hardware EXAMPLE A TRACK DISP parameter of 0000 will allow selections of either C X KuLo and KuHi bands while a TRACK DISP parameter of 0130 will allow sel...

Page 18: ...ss ENTER from the Search 2 Sub Menu to access the READ ONLY Status Error Sub Menu Diagnostic display of Remote auxiliary read typically used as a Password entry field to access the SETUP Parameter Menus or if properly configured with the appropriate hardware to indicate Temperature or EIRP readings from the antenna Continuing to press the ENTER key will not advance the display until the correct pa...

Page 19: ...tomated search pattern after AGC falls below the current Threshold setting indicates that satellite signal has been lost The SEARCH DELAY parameter sets the amount of delay in seconds that the ACU will wait after AGC has fallen below the threshold value before it starts a search Search can be initiated manually by pressing the MODE key to display the STATUS menu then press ENTER button a few times...

Page 20: ...ll terminate search and go into Tracking mode If the desired signal is not found the ACU will wait SEARCH DELAY seconds and then begin the search pattern again This cycle will repeat until the desired satellite signal is found or the operator intervenes 2 1 2 Some older satellites in order to save fuel to keep them exactly positioned over the Equator are in an inclined geosynchronous orbit The sat...

Page 21: ...that your antenna model is currently being used for typically 15 counts SEARCH LIMIT leave this set to the default value SEARCH DELAY default or any number of seconds from 1 255 that you would prefer that the ACU wait before starting an automatic search SWEEP INC Larger antennas should have slower speeds and smaller antennas should have faster speeds Larger antennas should have slower speeds set t...

Page 22: ...n of the feed is not properly peaked the ACU will send a command to the PCU to drive the 24V DC motor drive on the feed to peak the polarization If your antenna does not have the hardware to support Auto Polarization set Polang type to either 0 or 9 2 3 Radome Assembly Operation When operating the system it is necessary that the radome access hatch or door be closed and secured in place at all tim...

Page 23: ... perform a software upload to the Comm IF Module The NMEA J2 Port allows 2 simultaneous NMEA 0183 connections on the same DB9 connector defined as NMEA A and NMEA B Both NMEA A J2 Pin1 Rx and J2 Pin3 Tx and NMEA B J2 Pin7 Rxe and J2 8 Txe Ports have selectable baud rates independent of each other The following procedure describes the process of connecting the ACU to your Laptop and configuring all...

Page 24: ...er Unnnn Set UDP Software Upload port number Cnnnn Set M C Port C baud rate Bnnnn Set NMEA B Port B baud rate Annnn Set NMEA A Port A baud rate View Settings IP NM GW Port 0 1 baud C B A V View Comm IF PCB Software Version L Lock out ports for download IP Factory Default 192 168 30 195 is the ACU IP address NM Factory Default 255 255 255 0 is the ACU Subnet Mask GW Factory Default 192 168 30 1 is ...

Page 25: ...ayed 3 2 Internal HTML Page The following procedure s define the process of connecting and logging into the DAC2202 s internal HTML page If the IP address for your DAC2202 has been changed from factory default or if is unknown use the Configuring the COMM IF ports of the DAC 2202 ACU procedure to view or change the existing parameters 1 Connect the ETHERNET port on DAC 2202 to a Local Area Network...

Page 26: ...es Page This page displays an editable list of 5 Preset satellites and their respective tracking parameters 5 Click to select to the Status page This page displays current system status including Tracking condition Antenna Position Vessel Location Orientation and decoded error conditions 6 The ACU Model field displays the software version currently installed in the ACU M B 7 Click to refresh the f...

Page 27: ...rable operation click on the SAVE button to store value to Flash This address must conform to the nnn nnn nnn nnn format where nnn is a number between 0 and 255 4 The TCP Port 0 field displays the Transmission Control Protocol Port 0 value currently stored in the Comm IF Module To change the Port value to match an existing LAN info structure type in the desired value and click on the SUBMIT button...

Page 28: ...nd 2 is selected for tracking purposes 13 The LO Band 3 field displays a drop down selection list for the Local Oscillator value to be used when Band 3 is selected for tracking purposes 14 The LO Band 4 field displays a drop down selection list for the Local Oscillator value to be used when Band 4 is selected for tracking purposes 15 The NMEA Heading ID displays a drop down selection list for NMEA...

Page 29: ...isplays the sum of the numeric values currently set in RAM This List box below the displayed parameter displays the decoded System Type parameter currently stored in Flash The applicable ACU system options are highlighted in blue when the System Type value is entered Changes to this list box itself is possible Select the desired options and the correlating parameter value for System Type will be d...

Page 30: ...SATELLITE field s present longitudinal position of the currently stored or last targeted satellite 2 The Frequency MHZ field displays the numeric value currently stored in RAM 3 The Baudrate field displays the numeric value currently stored in RAM 4 The FEC field displays the selected value currently stored in RAM 5 The Tone field displays the selected state currently stored in RAM 6 The VOLT fiel...

Page 31: ...nt ACU parameter values 22 Click the SAVE button to store all currently displayed parameters to memory NVRAM 3 7 Status Page Number Description 1 These fields present the current antenna status as reported by the ACU 2 These fields present the current DishScan and Satellite Reference mode status as reported by the ACU and PCU 3 The Control field buttons allow the user to Toggle the antennas curren...

Page 32: ...ield that displays Pedestal reported errors currently triggered 17 The ACU Errors box is a read only field that displays the decoded ACU reported errors currently triggered 18 The Refresh field allows the user to adjust the page refresh settings AUTO is selected by default which refreshes the displayed page every 5 seconds 3 8 Favorite Satellites Page Number Description 1 These NAME fields present...

Page 33: ...ork Identification value for each respective Favorite Satellite Column 9 The Band fields present a drop down listing of the available LNB Band selection for each respective Favorite Satellite Column 10 The Tx Pol fields present the transmit for each respective Favorite Satellite Column 11 The Sat Skew fields present the satellite Polarization Offset value for each respective Favorite Satellite Col...

Page 34: ...DAC2302 Operator Manual Setup CommIF and HTML Pages 3 12 This Page Intentionally Left Blank ...

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