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Campbell TX325 Product Manual

Satellite transmitter for goes v2
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PRODUCT MANUAL
TX325
Satellite Transmitter for GOES V2
Revision: 05/2025
Copyright © 2019 – 2025
Campbell Scientific, Inc.

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  • Page 1 PRODUCT MANUAL TX325 Satellite Transmitter for GOES V2 Revision: 05/2025 Copyright © 2019 – 2025 Campbell Scientific, Inc.

  • Page 2: Please Read First

    U.S. standard external power supply details where some information (for example the AC transformer input voltage) will not be applicable for British/European use. Please note, however, that when a power supply adapter is ordered from Campbell Scientific it will be suitable for use in your country.

  • Page 3: Table Of Contents

    7.6 Data logger programming 7.6.1 Read and write settings 7.6.2 Read-only settings 8. Troubleshooting 8.1 Check TX325 and data logger power 8.2 Check RS-232 connection 8.3 Check SC105 baud rate settings 8.4 Check mounting and connections for the antennas 8.5 Verify antenna positioning 8.6 Verify GPS fix...
  • Page 4 Appendix C. GOES Version 2 DCS channel frequencies Appendix D. Watch test results Appendix E. Antenna gain for nonstandard antennas Appendix F. TX321 program converted to TX325 program (CR1000, CR3000, CR800-series) Appendix G. Compliance documents and certificates Table of Contents - ii...

  • Page 5: Introduction

    The TX325 transmitter sends data via Geostationary Operational Environmental Satellites (GOES) and is the successor to the TX321. In the Western Hemisphere, the TX325 is compatible for use with NOAA GOES DCS with a coverage range including Canada, the United States of America, and Mexico—as well as most countries in Central America and many South American countries.

  • Page 6: Initial Inspection

    (DCP). This QuickStart is for the CR6 (≥OS 10), CR300-series (≥OS 10), CR1000X (≥OS 4), and GRANITE-series (≥OS1) data loggers. 1. Connect the data logger RS-232 to the TX325 RS-232 connector and connect the data logger to a power supply.
  • Page 7 0.9 A over its 12 VDC terminals, which is insufficient. To avoid transmission issues, ensure that the TX325 power is directly connected to the charging regulator or the battery. 3. Connect to the data logger using Device Configuration Utility. a. Do the following to directly connect your data logger to the Device Configuration Utility: i.
  • Page 8 13. Type the Self-Time Channel as assigned by the GOES DCS Program. 14. Type the Random Transmission Interval as assigned by the GOES DCS Program. Format is hh:mm:ss. 15. Type the Self-timed Transmission Interval as assigned by the GOES DCS Program. Format is dd:mm:hh:ss. TX325 Satellite Transmitter for GOES V2...

  • Page 9: Data Collection Platform (Dcp) Installation

    For example, the element with four grooves should be placed at the spot on the boom with four dimples, and so forth. TX325 Satellite Transmitter for GOES V2...
  • Page 10 Route the cable through the 0.75-inch IPS threaded pipe and insert the pipe into the GPS antenna. c. Mount the 0.75-inch IPS threaded pipe to a crossarm by using the Nu-Rail® fitting or right-angle mounting kit. TX325 Satellite Transmitter for GOES V2...
  • Page 11 Concrete might also be a problem. Heavy foliage, snow, and ice will attenuate the GPS signal. 3. Mount the TX325, the power supply, and the data logger to the backplate of an enclosure. 4. Mount the enclosure and solar panel to the pole or tripod.

  • Page 12: Overview

    GPS receiver (±100 μs), and the internal clock is capable of maintaining accurate time for a minimum of six days without a GPS fix. If the TX325 finds itself without an accurate time, it suspends data transmissions until an accurate time is obtained. The GPS time is synced every 11 hours.

  • Page 13: Goes, Nesdis, And Transmit Windows

    Within the United States, odd-numbered channels are assigned to GOES East, and even-numbered channels are assigned to GOES West. Channels used outside of the United States are assigned to either spacecraft. Figure 5-1. Coverage of GOES East and GOES West satellites TX325 Satellite Transmitter for GOES V2...

  • Page 14: Specifications

    The transmission is randomly repeated to ensure it is received. A combination of self-timed and random transmission can be executed by the TX325. Refer to Eligibility and getting onto the GOES system (p.
  • Page 15 1500 Hz (300 bps), 2250 Hz (1200 bps) GPS receiver NOTE: The TX325 can source up to 19 mA at 2.7 V for an external GPS antenna. Campbell Scientific recommends a maximum antenna Low-Noise Amplifier (LNA) of 1.5 dB. Maximum RF input gain: 3.3 V active...

  • Page 16: Installation

    The solar panel must have a clear view of the southern sky. Pay special attention to winter sun angles. 7.2 LED function A green Status LED and a red Failsafe LED indicate the state of the TX325 transmitter by using various blink patterns. Table 7-1 (p.

  • Page 17: Ports And Connectors

    Transmit is an output and receive is an input to the TX325. The RS-232 port allows the transmitter to be connected to a data logger. Refer to the following table for the cable options and data logger connection.
  • Page 18 Maximum EIRP for GOESV2 is 41 dBm for 300 bps and 47 dBm for 1200 bps. The antenna gain can be set while configuring the transmitter. If not set, the TX325 will use an antenna gain of 11 dBi and a transmitter-antenna cable loss of 1 dB. Under those conditions, at 300 bps transmission rates, the maximum transmit power from the transmitter is 31 dBm.

  • Page 19: Transmission Antenna

    GPS synchronization pulse is used to ensure a precise, drift-free carrier frequency. The TX325 power connector has two pins: ground and 12 V for connection of the power supply. The input power requirement is 10.5 to 16 VDC can use up to 2.5 A. A power supply consisting of a CH150, CH200, or CH201 regulator, BP12 or BP24 battery, and a solar panel typically can support these requirements.
  • Page 20 Check that the Latitude, Longtitude, Elevation, and Magnetic Declination are correct for your site; this information should be pulled from the GPS receiver. The bottom window will display the correct Azimuth and Elevation for pointing your antenna. TX325 Satellite Transmitter for GOES V2...

  • Page 21: Gps Antenna

    To use this tool with the CR3000, CR1000, or CR800-series, select a newer data logger, such as the CR1000X, and use the offline mode (File> Offline Mode>CR1000X Measurement and Control Datalogger with a TX325/TX326 Radio). In the Offline Mode, click the Deployment > GOES tab then click Orient Antenna to access the Orient Antenna window.

  • Page 22: Data Logger Programming

    For the Model, enter 3 to use the TX325. For the BufferControl, a value of 0 writes to the self-timed buffer and a value of 1 writes to the random buffer.

  • Page 23: Read And Write Settings

    The CRBasic program reads the TX325 settings using the following format: Variable = Settings.FieldName For example, goes_comport = Settings.GOESComPort reads the Com port setting and stores it in the GOESComPort variable. The TX325 settings are typically read in a SlowSequence section of the program.
  • Page 24 GOESGainSetting GOES Antenna Gain Yagi antenna used for certification. The TX325 sets the output power so that the EIRP is close to, without exceeding, the maximum EIRP. Maximum permitted EIRP for GOES V2 is 41 dBm for 300 bps and 47 dBm for 1200 bps transmissions.
  • Page 25 Table 7-4: Read and write TX325 settings Device Configuration Field name Description Utility setting Average time between random transmissions. The value is a string entered in the format of Hours:Minutes:Seconds. Typically, the Random TX Options> assigned interval is in hours, so the minutes...

  • Page 26: Read-Only Settings

    Current ID programmed into the radio. The ID isn’t GOESid programmed into the radio until right before a radio transmission starts. Current date and time (UTC) of the TX325 radio. Value is a GOESdateTime string. GOESversion Current radio firmware version. Value is a string.
  • Page 27 Start time (UTC) of the last radio transmission. Value is a GOESLastTxStartTime string. GOESLastTxChannel Channel number used during the last radio transmission. Type of transmission used during the last radio GOESLastTypeCode transmission. GOESLastDatelength Number of bytes in the last radio transmission. TX325 Satellite Transmitter for GOES V2...

  • Page 28: Troubleshooting

    1 = Transmission is in progress 2 = Post transmission failsafe wait is in progress 8. Troubleshooting 8.1 Check TX325 and data logger power 8.2 Check RS-232 connection 8.3 Check SC105 baud rate settings 8.4 Check mounting and connections for the antennas 8.5 Verify antenna positioning...

  • Page 29: Check Tx325 And Data Logger Power

    Do the following to ensure that the TX325 properly powered: 1. Ensure that the power connector attached to the TX325 has the correct polarity. To do this, use a multimeter to verify that positive is connected to the positive terminal and negative is connected to the negative terminal.

  • Page 30: Check Rs-232 Connection

    5. Click the data logger Deployment > GOES tab and check the Current Battery voltage in the diagnostics at the bottom of the screen and ensure that it is 12 VDC or higher. If the TX325 and data logger are drawing power from the same source, always ensure that the voltage is more than 12 VDC.

  • Page 31: Check Mounting And Connections For The Antennas

    Verify that both the GPS and transmitter antennas are mounted correctly, and securely attached to the correct connector on the TX325. The GPS antenna cable has an SMA connector that fastens to the GPS port of the TX325. The transmitter antenna connects to the RF Out port on the TX325.

  • Page 32: Verify Antenna Positioning

    NOTE: If using surge protection with the GPS antenna verify the surge protector is DC coupled so that it can supply power to the antenna. Campbell Scientific offers a suitable kit (www.campbellsci.com/order/tx325 For the transmitter antenna, Campbell Scientific recommends using the GOES Yagi RHCP Antenna listed on the website (www.campbellsci.com/order/tx325...

  • Page 33: Verify Gps Fix

    (p. 15) for more information. 8.6 Verify GPS fix Ensure that the TX325 has a valid GPS fix. For the newer data loggers, use the data logger GOES tab in the Device Configuration Utility, and check the diagnostics at the bottom of the screen.

  • Page 34: Check Tx325 Settings

    5. Ensure that the eight digit GOES Platform ID is correct. 6. The GOES Antenna Gain setting should be the default value of 0 when using the standard Yagi antenna offered by Campbell Scientific. Only change this value if using a user-supplied antenna (refer to Antenna gain for nonstandard antennas (p.

  • Page 35: Check Data Logger Program

    Example programs for the newer and older data loggers are available at www.campbellsci.com/tx325 NOTE: If converting from using an older TX321 radio to a newer TX325, you will have to make significant changes to your program. Refer to TX321 program converted to TX325 program (CR1000, CR3000, CR800-series) (p.

  • Page 36: Check For Fail-Safe Mode

    GOES connection. 8.10 Check for fail-safe mode The TX325 transmitter will go into the fail-safe mode if one of two events occurs: 1. The transmitter RF output is turned on and left on for more than 110 seconds.
  • Page 37 There are two ways to check if the TX325 is in fail-safe mode. The first is on site by checking the red fail-safe LED on the TX325 (see LED function [p.

  • Page 38: Watch Rs-232 Transmission

    8.11 Watch RS-232 transmission The following instructions show the process of using the terminal mode in the Device Configuration Utility to watch the RS-232 traffic to ensure that the data logger and TX325 GOES radio are communicating with each other: 1.
  • Page 39 GOES radio. After the T or R, the transmitted data is displayed. NOTE: If you answered Y for step 6, you wouldn't be able to read the raw data in the Terminal mode TX325 Satellite Transmitter for GOES V2...

  • Page 40: Diagnostic Table

    The following shows an example RF traffic screen: A full set of test results from a sniff showing the communications between the TX325 and a data logger is available in Watch test results (p. 65). 8.12 Diagnostic table This summary of the most relevant diagnostic values contained in the GOES_DIAGNOSTICS table can help users troubleshoot communications.
  • Page 41 The GOES time and GPS position of the last GPS fix. The TX325 can operate for a few days without a current GPS fix, but will eventually fail. goes_number_of_missed_gps: The number of attempts that failed to get a GPS fix. A high number indicates a poor GPS signal.

  • Page 42: Troubleshooting Over-Air Transmissions

    “Buffer Control Error” “COM9602 not communicating” “Illegal data format” “Transmitter not set up” 8.13 Troubleshooting over-air transmissions TX325 users within the GOES system can troubleshoot their over-the-air data transmissions by using one of the following websites: https://dcs1.noaa.gov/Account/FieldTest https://dcs2.noaa.gov/Account/FieldTest https://dcs3.noaa.gov/Account/FieldTest https://dcs4.noaa.gov/Account/FieldTest...
  • Page 43 DCP scheduled slots and also will result in the loss of other user data. The bottom table shows information that can help determine the health of the DCP transmissions. Example results:. TX325 Satellite Transmitter for GOES V2...
  • Page 44 (/) instead of measurement values, either the system is having trouble making a good sensor measurement or there is a problem with the variable types in your data table. For variable type issues see Data formats and transmission durations (p. 43). TX325 Satellite Transmitter for GOES V2...

  • Page 45: Verify Goes Service And Check Goes Data

    A Getting Started Guide for the client is available on the GOES website (https://dcs3.noaa.gov/LRGS/LRGS-Client-Getting-Started.pdf For variable type issues or trouble getting good sensor values, refer to Data formats and transmission durations (p. 43). TX325 Satellite Transmitter for GOES V2...

  • Page 46: Appendix A. Eligibility And Getting Onto The Goes System

    2. Sign and submit the MOA. After the MOA is approved, NESDIS will issue a channel assignment and an GOES platform ID. 3. IMPORTANT: Contact NESDIS to coordinate a start-up date. https://dcs2.noaa.gov for more information. TX325 Satellite Transmitter for GOES V2...

  • Page 47: Appendix B. Data Formats And Transmission Durations

    (Table B-1 [p. 44]). Number are rounded to selected precision during conversion. For example, +12.345, will be rounded to +12.35. Value is always 7 characters including a trailing comma. Value is always signed (+/-). TX325 Satellite Transmitter for GOES V2...
  • Page 48 Example output (with 10 fields): GoesTable() Fields_Scan_Order = FALSE, Newest_First=FALSE, Format = 1 GoesField() Decimation = 1 <CR><LF>-7994.,-7994.,+8191.,-8191.,-8190.,+8191.,-8191.,-8190.,+13.10,+27.32, GoesTable() Fields_Scan_Order = FALSE, Newest_First=FALSE, Format = 1 GoesField() Decimation = 4 <CR><LF>-7997.,-7997.,+8191.,-8191.,-8190.,+8191.,-8191.,-8190.,+13.15,+26.08, <CR><LF>-7996.,-7996.,+8191.,-8191.,-8190.,+8191.,-8191.,-8190.,+13.16,+26.04, <CR><LF>-7995.,-7995.,+8191.,-8191.,-8190.,+8191.,-8191.,-8190.,+13.17,+26.03, <CR><LF>-7994.,-7994.,+8191.,-8191.,-8190.,+8191.,-8191.,-8190.,+13.19,+26.18, TX325 Satellite Transmitter for GOES V2...

  • Page 49: Ascii Table Space (Goestable() Format Option 2)

    SHEF Codes can be added as headers or at the beginning of lines using option SHEF. Value has a fixed width (Table B-2 [p. 46]). Value has a fixed precision (Table B-2 [p. 46]). Value only has a leading sign when negative (–). TX325 Satellite Transmitter for GOES V2...
  • Page 50 <CR><LF>-9.78 -9.78 ///// ///// ///// ///// ///// ///// 13.14 26.08<CR><LF> GoesTable() Fields_Scan_Order = TRUE, Newest_First=FALSE, Format = 2 GoesField() Decimation = 1, Precision = 3, Width = 5 <CR><LF>-9.68 <CR><LF>-9.68 <CR><LF>///// <CR><LF>///// <CR><LF>///// <CR><LF>///// <CR><LF>///// <CR><LF>///// <CR><LF>13.12 <CR><LF>26.43<CR><LF> TX325 Satellite Transmitter for GOES V2...
  • Page 51 Decimation = 4, Precision = 3, Width = 5, SHEF set to HG, TA, VB NOTE: GoesField() To get a single battery voltage (or other additional data), set Decimation = 1 for just the battery_voltage (or other) value in the GOESTable(). TX325 Satellite Transmitter for GOES V2...

  • Page 52: Ascii Table Space, Comma Separated (Goestable() Format Option 3)

    Fields_Scan_Order = FALSE, Newest_First=FALSE, Format = 3 GoesField() Decimation = 1, Precision = 3, Width = 4 <CR><LF>-7.982,-7.982,////,////,////,////,////,////,13.1,25.8<CR><LF> GoesTable() Fields_Scan_Order = FALSE, Newest_First=FALSE, Format = 3 GoesField() Decimation = 4, Precision = 3, Width = 5 <CR><LF>-9.81,-9.81,/////,/////,/////,/////,/////,/////,13.15,26.08 <CR><LF>-9.80,-9.80,/////,/////,/////,/////,/////,/////,13.13,26.08 <CR><LF>-9.79,-9.79,/////,/////,/////,/////,/////,/////,13.14,26.08 <CR><LF>-9.78,-9.78,/////,/////,/////,/////,/////,/////,13.14,26.08<CR><LF> TX325 Satellite Transmitter for GOES V2...
  • Page 53 Decimation = 4, Precision = 3, Width = 5, SHEF set to HG, TA, VB <CR><LF>HG,TA,VB <CR><LF>-8.32,13.14,26.74 <CR><LF>-8.31,13.14,26.74 <CR><LF>-8.30,13.14,26.74 <CR><LF>-8.29,13.14,26.74<CR><LF> GoesTable() Fields_Scan_Order = TRUE, Newest_First=FALSE, Format = 3 GoesField() Decimation = 1, Precision = 3, Width = 5, SHEF set to HG, TA, VB <CR><LF>HG,-6.79 <CR><LF>TA,13.12 <CR><LF>VB,26.68<CR><LF> TX325 Satellite Transmitter for GOES V2...

  • Page 54: Line Shef (Goestable() Format Option 6)

    Value has a fixed precision (Table B-2 [p. 46]). Value only has a leading sign when negative (–). Data outside of operating range will be set to the minimum or maximum of the range. TX325 Satellite Transmitter for GOES V2...

  • Page 55: Pseudobinary Data Formats

    To encode a number, its binary form is broken into groups of 6 bits. Each group is placed into the lower 6 bits of a respective byte. The TX325 Satellite Transmitter for GOES V2...

  • Page 56: Campbell Scientific Fp2 Data

    +/– INF and NAN, most commonly used to indicate a computational or measurement error. Table B-5 (p. 53) shows the numeric ranges and precision; Table B-6 (p. 53) describes the bits, Table B-7 (p. 53) provides bit usage in calculating a finished value. TX325 Satellite Transmitter for GOES V2...
  • Page 57 12 through 7 are the least significant six bits of the second byte, and the last six bits are the least significant bits of the last byte. The following tables are examples of encoding values. TX325 Satellite Transmitter for GOES V2...
  • Page 58 Character 2 = S Character 3 = R Sign Exponent Mantissa Mantissa Mantissa Table B-11: Encoding of 123.4 Character 1 = B Character 2 = S Character 3 = R Sign Exponent Mantissa Mantissa Mantissa TX325 Satellite Transmitter for GOES V2...
  • Page 59 Character 2 = S Character 3 = R Sign Exponent Mantissa Mantissa Mantissa Table B-15: Encoding of -12.34 Character 1 = L Character 2 = S Character 3 = R Sign Exponent Mantissa Mantissa Mantissa TX325 Satellite Transmitter for GOES V2...
  • Page 60 Character 2 = ? Character 3 = ? Sign Exponent Mantissa Mantissa Mantissa Table B-19: Encoding of -INF Character 1 = I Character 2 = ? Character 3 = ? Sign Exponent Mantissa Mantissa Mantissa TX325 Satellite Transmitter for GOES V2...

  • Page 61: Pseudobinary

    (p. 58) provides the transmission durations, calculated from the number of bytes in a message. Table B-23 (p. 58) provides the maximum data bytes for an assigned time slot duration. Users need to convert the data points they want to send to number of bytes. TX325 Satellite Transmitter for GOES V2...
  • Page 62 GOES 300 bps maximum data GOES 1200 bps maximum data duration (seconds) per message (bytes) per message (bytes) 1444 2194 2944 3694 1090 4444 1278 5194 1465 5944 1653 6694 1840 7444 2028 8194 2215 8944 TX325 Satellite Transmitter for GOES V2...

  • Page 63: Appendix C. Goes Version 2 Dcs Channel Frequencies

    344 401.766250 401.715250 401.732500 333 401.749750 45 401.767000 401.716000 401.733250 34 401.750500 345 401.767750 401.716750 401.734000 334 401.751250 46 401.768500 401.717500 401.734750 35 401.752000 346 401.769250 Bold text indicates possible 1200 bps channel assignments. TX325 Satellite Transmitter for GOES V2...
  • Page 64 406 401.859250 401.790250 401.813500 391 401.836750 107 401.860000 401.791000 401.814250 92 401.837500 407 401.860750 401.791750 401.815000 392 401.838250 108 401.861500 401.792500 401.815750 93 401.839000 408 401.862250 Bold text indicates possible 1200 bps channel assignments. TX325 Satellite Transmitter for GOES V2...
  • Page 65 451 401.926750 167 401.950000 401.881000 401.904250 152 401.927500 467 401.950750 401.881750 401.905000 452 401.928250 168 401.951500 401.882500 401.905750 153 401.929000 468 401.952250 401.883250 401.906500 453 401.929750 169 401.953000 401.884000 401.907250 154 401.930500 469 401.953750 TX325 Satellite Transmitter for GOES V2...
  • Page 66 Channel Frequency Channel Frequency Channel Frequency number (MHz) number (MHz) number (MHz) number (MHz) 401.884750 401.908000 454 401.931250 170 401.954500 401.885500 401.908750 155 401.932000 470 401.955250 Bold text indicates possible 1200 bps channel assignments. TX325 Satellite Transmitter for GOES V2...
  • Page 67 528 402.042250 401.975500 401.998000 214 402.020500 229 402.043000 401.976250 401.998750 514 402.021250 529 402.043750 401.977000 401.999500 215 402.022000 230 402.044500 401.977750 402.000250 515 402.022750 530 402.045250 Bold text indicates possible 1200 bps channel assignments. TX325 Satellite Transmitter for GOES V2...
  • Page 68 564 402.096250 402.056500 402.070000 256 402.083500 265 402.097000 402.057250 402.070750 556 402.084250 565 402.097750 402.058000 402.071500 257 402.085000 266 402.098500 402.058750 402.072250 557 402.085750 566 402.099250 Bold text indicates possible 1200 bps channel assignments. TX325 Satellite Transmitter for GOES V2...

  • Page 69: Appendix D. Watch Test Results

    Appendix D. Watch test results The following is a full set of test results from a watch test showing the communications between the TX325 and a data logger: 12:15:00.050 T 01 00 14 14 04 ..12:15:00.066 R 01 0A 14 00 00 20 00 10 ..
  • Page 70 12:15:07.270 T 34 2E 36 39 31 2C 32 34 2E 36 36 36 2C 32 34 2E 4.691,24.666,24 12:15:07.270 T 36 34 33 2C 32 34 2E 36 32 32 2C 0D 0A A6 04 643,24.622,..12:15:07.430 R 01 02 1E 00 20 04 ..TX325 Satellite Transmitter for GOES V2...

  • Page 71: Appendix E. Antenna Gain For Nonstandard Antennas

    3. Click in the window and press Enter until you see the CR1000X> prompt. 4. Type capital C and press Enter. 5. Specify the number on the left corresponding to the Constant Value you want to change and press Enter. TX325 Satellite Transmitter for GOES V2...
  • Page 72 6. Type the value for the constant you would like to change and press Enter. TX325 Satellite Transmitter for GOES V2...

  • Page 73: Appendix F. Tx321 Program Converted To Tx325 Program (Cr1000, Cr3000, Cr800-Series)

    This appendix discusses modifying a program for a CR3000, CR1000, or CR800-series data logger to use a TX325 instead of a TX321. It also discusses the TX325 features and commands that are not supported in the older data loggers and the interfaces required to connect the TX325 to an older data logger.
  • Page 74 A Device Configuration page is not available for the TX325 when it is connected to an older data logger. With an older data logger, the configuration parameters for the GOES radio EnviroSatRandomSetup EnviroSatSTSetup must be set programmatically using the commands.
  • Page 75 In the main file, add the following line before the BeginProg command: Include "CPU:IncludeFile.CR1" Send the main file. It should pull in IncludeFile.CR1 and compile without error. The TX325 status is sent as an array of 37 values. Allocate and set aliases as follows or similarly: Public tx_325_status(37)
  • Page 76 Return values and their meanings may differ or be in different units or formats. Code similar to the following may be appropriate for retrieving status and interpreting it: GetTX325_StatusAndProcess 'This section of CRBasic code polls the TX325 radio and 'converts some diagnostic data into human readable values. EnviroSatStatus(tx_325_status)
  • Page 77 & "/" & year_of_last_missed_gps_fix_attempt _ & " " & hour_of_last_missed_gps_fix_attempt & ":" & _ minute_of_last_missed_gps_fix_attempt & ":" & _ second_of_last_missed_gps_fix_attempt Else last_missed_gps_fix_attempt = "1/0/1992 0:0:0" EndIf ((StrComp (last_missed_gps_fix_attempt, "1/0/1992 0:0:0") = 0) _ TX325 Satellite Transmitter for GOES V2...
  • Page 78 Then self_timed_transmission_status = "Buffer control error." ElseIf (st_tx_data_result_code = -16) Then self_timed_transmission_status = "Illegal data format sent to the TX325." ElseIf (st_tx_data_result_code = -17) Then self_timed_transmission_status = "Data format 0 or 1, but table not FP2 or ASCII." ElseIf (st_tx_data_result_code = -22)
  • Page 79 Because of priority and available memory, some status reports that were available on the TX321 may not be available from the commands implemented for the TX325 in the OS update for the older data loggers. These include (but may not be limited to): ForwardPower, ReflectPower, GPS_Acq_Time, and Osc_Drift.
  • Page 80 'If the year is divisible by 4 leap_year = TRUE (_year MOD 100 = 0) AND (_year MOD 400 <> 0) Then 'centuries are not leap years unless they are also divisible by 400 'see https://docs.microsoft.com/en-us/office/troubleshoot/excel/determine-a-leap-year leap_year = FALSE TX325 Satellite Transmitter for GOES V2...
  • Page 81 'Is the month January _day_of_year <= 31 Then _month = 1 : _day = _day_of_year 'Is the month February ElseIf _day_of_year > 31 _day_of_year <= 60 Then _month = 2 : _day = _day_of_year - 31 TX325 Satellite Transmitter for GOES V2...
  • Page 82 Refer to the CRBasic Editor help to determine the changes that need to be made to the parameters. The GOESData(), GOESGPS(), GOESSetup(), and GOESStatus() CRBasic instructions are EnviroSat() not compatible with the TX325. Replace these instructions with the instructions for the required functionality. TX325 Satellite Transmitter for GOES V2...
  • Page 83 Connection to the data logger RS-232 with LoggerNet Once a program has been run that sends data to the TX325 through the RS-232 port, the RS-232 port will remain configured at 9600 baud, even after a power cycle. To use the RS-232 interface for LoggerNet at its normal baud rate, do the following: 1.

  • Page 84: Appendix G. Compliance Documents And Certificates

    Compliance documents include the ISO certificate (Figure G-1 [p. 80]) and the GOES V2 certificate (Figure G-2 [p. 81]). The TX325 EU Declaration of Conformity is available at: www.campbellsci.com/tx325 Certificate of Registration This certifies that the Quality Management System of Signal Engineering, Inc.
  • Page 85 Figure G-2. GOES V2 certificate TX325 Satellite Transmitter for GOES V2...
  • Page 86 Figure G-3. ANATEL certificate of homologation TX325 Satellite Transmitter for GOES V2...

  • Page 87: Limited Warranty

    2. The defect cannot be the result of misuse. 3. The defect must have occurred within a specified period of time; and 4. The determination must be made by a qualified technician at a Campbell Scientific Service Center/ repair facility.
  • Page 88 Campbell Scientific’s Terms, the provisions of Campbell Scientific’s Terms shall prevail. Furthermore, Campbell Scientific’s Terms are hereby incorporated by reference into this Warranty. To view Terms and conditions that apply to Campbell Scientific, Logan, UT, USA, see Terms and Conditions ...
  • Page 89 Please state the faults as clearly as possible. Quotations for repairs can be given on request. It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment. In support of this policy, when equipment is returned to Campbell Scientific, Logan, UT, USA, it is mandatory that a “Declaration of Hazardous Material and...
  • Page 90 Comply with all electrical codes. Electrical equipment and related grounding devices should be installed by a licensed and qualified electrician. Only use power sources approved for use in the country of installation to power Campbell Scientific devices. Elevated Work and Weather Exercise extreme caution when performing elevated work.
  • Page 91 Periodically (at least yearly) check electrical ground connections. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS,...
  • Page 92 Campbell Scientific Regional Offices Australia France Spain Location: Garbutt, QLD Australia Location: Montrouge, France Location: Barcelona, Spain Phone: 61.7.4401.7700 Phone: 0033.0.1.56.45.15.20 Phone: 34.93.2323938 Email: info@campbellsci.com.au Email: info@campbellsci.fr Email: info@campbellsci.es Website: www.campbellsci.com.au Website: www.campbellsci.fr Website: www.campbellsci.es Brazil Germany Thailand Location: São Paulo, SP Brazil...

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