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Campbell TGT1, Operator'S Manual

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Summary of Contents for TGT1

Page 1: ...TGT1 GOES TRANSMITTER OPERATOR S MANUAL REVISION 3 03 COPYRIGHT c 1995 2003 CAMPBELL SCIENTIFIC INC ...

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Page 3: ...time Leave at least a two minute buffer 4 If you are using the keypad CR10KD when the datalogger initiates a P99 P120 or P123 instruction the instruction will fail without reporting a failure 5 Due to atmospheric interference and other sources of error it is possible for a data transmission to be missed by the ground station If this happens your missed data is still in the datalogger until overwri...

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Page 5: ...bility or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequential damages Products may not be returned without prior authorization To obtain a Returned Materials Authorization RMA contact CAMPBELL SCIENTIFIC INC phone 435 753 2342 After an applications engineer determines the nature of the problem an RMA number will be issued Please w...

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Page 7: ...eable Batteries 5 5 3 Datalogger s Batteries 5 6 Installation 5 6 1 Wiring 5 6 2 Battery 6 6 3 Antenna 6 7 Forward and Reflected Power 9 8 Programming the Transmitter 10 8 1 Star Pound Mode 10 8 2 Establishing and Editing Parameters 10 8 3 Status Information and Test Transmissions 12 8 4 Error Messages 12 9 Programming the Datalogger 13 9 1 CR10X and CR10 13 9 1 1 Instruction 120 and Instruction 1...

Page 8: ...ance Match Datalogger Program D 2 D 3 1 CR10X and CR10 D 2 D 3 2 21X D 4 E Channel Frequency Correlation E 1 F Data Dump Datalogger Program F 1 F 1 Introduction F 1 F 2 Toggling User Flag 1 High F 1 F 3 Checking the Buffer F 1 F 4 Test Transmission F 1 F 5 Toggling User Flag 2 High F 1 F 6 CR10X Data Dump Program F 2 F 7 21X Data Dump Program F 2 G Local Magnetic Declination G 1 G 1 Determining Tr...

Page 9: ...ing Hardware Assembled View 2 8 6 3 4 Example Antenna Orientation Diagram 9 G 1 Magnetic Declination for the Contiguous United States G 1 G 2 Declination Angles East of True North G 3 G 3 Declination Angles West of True North G 3 H 1 Disassembling CR10 H 2 H 2 Jumper Settings for Different RAM Configurations H 3 I 1 Memory Sockets on CPU Card I 1 Tables 6 1 1 Wiring Diagram 6 8 2 1 Parameter s Des...

Page 10: ...TGT1 GOES Transmitter Table of Contents iv This is a blank page ...

Page 11: ... Within the United States odd numbered channels are assigned to GOES East Only even numbered channels are assigned to GOES West Channels used outside the United States are assigned to either spacecraft 2 2 NESDIS and Transmit Windows GOES is managed by the National Environmental Satellite Data Information Service NESDIS NESDIS assigns addresses uplink channels and self timed random transmit time w...

Page 12: ... 0 dBm at 12 VDC with automatic leveling control Typical current drain 9 mA quiescent 2200 mA active Operating temperature range 40 to 60 C Supply voltage range 10 5 to 14 0 VDC Dimensions 3 5 x 7 2 x 4 4 8 9 x 18 3 x 11 2 cm Weight 2 1 lbs 1 0 kg Self timed buffer 2000 bytes Random buffer 2000 bytes Transmission rate 100 bits per second Typical number of data points transmitted 118 for a 1 minute...

Page 13: ...X require a special PROM When using a 21X with both a TGT1 and a storage module SM192 SM716 or CSM1 hardware and datalogger programming modifications are required Contact a Campbell Scientific applications engineer for more information RHCP Yagi antenna mounting bracket CSI model 12261 and COAX NM L cable Campbell s ENC SAT enclosure The ENC SAT includes a water tight compression fitting for the a...

Page 14: ... Panel Not Shown CAMPBELL SCIENTIFIC INC CR10 MADE IN USA WIRING PANEL NO EARTH DIFF SE AG H L AG H L AG H L AG G G E3 AG 4 5 6 7 8 9 10 11 12 G G G G 12V 12V SWITCHED 12V G 12V POWER IN SERIAL I O SE DIFF AG H L AG H L AG H L AG G G E1 E2 1 2 3 1 2 3 4 5 6 G 5V 5V P1 P2 C8 C7 C6 C5 C4 C3 C2 C1 CONTROL 12V SWITCHED INT EXT BATT OFF ON CHG CHG 12 12 thia ia tryu to read this whoever thia ia thia th...

Page 15: ...ystems applications with high current drain sensors or peripherals e g SDM devices might require AC power or a user supplied deep cycle rechargeable battery that is trickle charged with an MSX20R solar panel Campbell Scientific s power supply brochure and application note provide information about determining your system s power requirements 5 3 Datalogger s Batteries The transmitter s power consu...

Page 16: ...vided by NESDIS and the antenna s longitude latitude and height It then calculates the antenna s elevation and azimuth see Figure 6 3 4 You must also account for local magnetic declination see Appendix G After the antenna is properly oriented insert the antenna cable into the enclosure s largest compression fitting and connect the cable to the transmitter The antenna must be connected before trans...

Page 17: ...TGT1 GOES Transmitter 7 FIGURE 6 3 1 Antenna Mounting Hardware Exploded View FIGURE 6 3 2 Antenna Mounting Hardware Assembled View 1 Fits onto the 1 5 OD pipe ...

Page 18: ...TGT1 GOES Transmitter 8 FIGURE 6 3 3 Antenna Mounting Hardware Assembled View 2 Fits onto the 1 5 OD pipe ...

Page 19: ... decimal units and updated during each transmission see Sections 8 and 9 The forward power must be within 165 to 215 for the transmitter s output level to be within specifications The antenna cable assembly is operating properly when the percentage of power reflected is less than 5 A reflected power reading of 27 is 5 of 165 and 2 7 of 215 This percentage can be estimated with the following equati...

Page 20: ... the address transmission intervals and uplink channels see Table 8 2 1 The parameters are temporarily stored in the datalogger The clock parameters are transferred to the TGT 1 after parameter 3 is entered with the A key The remaining parameters are transferred to the TGT 1 after parameter 26 is entered with the A key If the keyboard display sits idle for 2 minutes the datalogger will discard all...

Page 21: ... 4 A 08 12 A 09 1 A 10 8 A 11 6 A 12 NESDIS assigned self timed uplink channel see Appendix E channel frequency correlation If not assigned a self timed channel type in zeros 13 NESDIS assigned random uplink channel see Appendix E for channel frequency correlation If not assigned a random channel type in zeros 14 17 Self timed transmission interval is NESDIS assigned and usually 3 or 4 hours minim...

Page 22: ...tch Instruction 120 s parameters see Section 9 TABLE 8 2 2 Decimal Equivalent Number Decimal or letter equivalent 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 A 10 B 11 C 12 D 13 E 14 F 15 8 3 Status Information and Test Transmissions The 60 mode is for displaying status infor mation and performing test transmissions 60 mode is entered by typing 60A The execution interval must be set to zero in table 1 and...

Page 23: ...gned a random channel see parameter 13 or obtain from NESDIS a channel for testing The random buffer must contain data The TGT 1 will not perform a test transmission more often then once each minute Clear the random buffer before final TGT 1 setup Appendix F contains a datalogger program that dumps data into the random buffer 9 Programming the Datalogger 9 1 CR10X and CR10 9 1 1 Instruction 120 an...

Page 24: ... per data point which is double the number of bytes required for the binary option 0xx This is a convenient method of sending data since no post processing conversion is required However the required transmission time for ASCII is doubled With a typical transmission window of one minute you can send up to 59 data points in ASCII or 118 data points in binary this allows 15 second guard bands before...

Page 25: ...struction 92 to transfer data only when there is an output to final storage Table 1 Program 01 10 0 Execution Interval seconds Measure reference temperature 01 Internal Temperature P17 1 1 Loc RefTemp Measure thermocouple temperature 02 Thermocouple Temp DIFF P14 1 1 Reps 2 1 2 5 mV Slow Range 3 5 DIFF Channel 4 1 Type T Copper Constantan 5 1 Ref Temp Loc RefTemp 6 2 Loc TCDeg_C 7 1 Mult 8 0 Offse...

Page 26: ...the results in two sequential input locations 09 Data Transfer to GOES P120 1 00 Buffer Selection 2 4 FWD Ref Power Loc FwdPwr 10 End P95 Set Output Flag High 10 for daily output 11 If time is P92 1 0 Minutes Seconds into a 2 1440 Interval same units as above 3 10 Set Output Flag High Timestamp data 12 Real Time P77 1 220 Day Hour Minute prev day at midnight 2400 at midnight Average maximize and m...

Page 27: ... 1 Fire Weather Data Transfer to TGT1 P124 1 00 Fire Weather Format 2 00 Buffer Control 3 0000 FWD Ref Power Loc __________ Fire Weather Format 0 RAWS 7 output 1 xxx x ASCII output 2 xx xx ASCII output 3 x xxx ASCII output 4 xxx ASCII output 5 xxxxx ASCII output Options 1 through 5 The ASCII output is formatted as a fixed number of digits with a fixed decimal place For options 1 through 4 the data...

Page 28: ... are transmitted only during a predetermined time frame All self timed data that has been transmitted are erased from the transmitter s buffer after each transmission Random data are transmitted immediately after a threshold has been exceeded The transmission is then randomly repeated until the random buffer is cleared to assure it is received Use instruction 124 with the buffer control code set t...

Page 29: ...gs are low The datalogger will detect flag 1 low set flag 1 high and execute P123 If power is lost P123 will automatically be executed when power is restored This is not the only way to run P123 Some guidelines for using P123 1 Before the datalogger is connected to the TGT 1 the datalogger clock must be set to Coordinated Universal Time 2 P123 should only be run once usually the first time through...

Page 30: ...ed transmission NESDIS assigned Parameter 18 is hours 19 is minutes and 20 is seconds Note This is a 24 hour format 21 Transmit window length is NESDIS assigned and usually 1 minute Type 0 for a 1 minute window or 1 for a 2 minute window 22 Sets the preamble length A long preamble increases the time the satellite can lock onto the signal but reduces the time for transmitting data The random mode r...

Page 31: ...inutes 20 0 Initial Self timed Seconds 21 0 One Minute Window 22 0 Short Preamble 23 1 Self Timed Buffer 4 End P95 9 3 21X 9 3 1 Instruction 99 The 21X s Instruction 99 is the same as the CR10 s Instruction 99 except there is an extra parameter that specifies the array of data that is transferred to the TGT1 buffer Instruction 99 also automatically compares the datalogger and transmitter s clocks ...

Page 32: ...ransferred to the TGT1 s buffer 9 3 2 Datalogger Programming Theory The 21X is programmed via the keyboard display or an IBM PC compatible computer running PC208 software The datalogger s program must have this structure Set Output Flag 0 high 10 based on condition 1 Output Processing Instructions P99 Data transfer to TGT1 Set Output Flag 0 high 10 based on condition n n 1 2 Output Processing Inst...

Page 33: ...temperature 02 Thermocouple Temp DIFF P14 1 1 Reps 2 1 5 mV Slow Range 3 5 DIFF Channel 4 1 Type T Copper Constantan 5 1 Ref Temp Loc RefTemp 6 2 Loc TCDef_F 7 1 8 Mult 8 32 Offset Measure battery voltage every 10 seconds 03 Batt Voltage P10 1 3 Loc Battery 04 If time is P92 1 0 Minutes into a 2 60 Minute Interval 3 10 Set Output Flag High Designate 111 as ID for hourly data 05 Set Active Storage ...

Page 34: ...ray ID ID 0 Transferred to TGT1 S Buffer 11 End P95 Set Output Flag High 10 for daily output 12 If time is P92 1 0 Minutes into a 2 1440 Minute Interval 3 10 Set Output Flag High Timestamp data 13 Real Time P77 1 220 Day Hour Minute prev day at midnight 2400 at midnight Designate 222 as the array ID 14 Set Active Storage Area P80 1 1 Final Storage 2 222 Array ID or Loc _________ Average maximize a...

Page 35: ...a to the TGT1 every day 18 If time is P92 1 5 Minutes into a 2 1440 Minute Interval 3 30 Then Do 19 Data Transfer to GOES P99 1 00 Buffer Selection 2 4 FWD Ref Power Loc FwdPwr 3 222 Array ID ID 0 Transferred to TGT1 S Buffer 20 End P95 ...

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Page 37: ...gencies may use GOES Potential GOES users must receive formal permission from NESDIS A 2 Acquiring Permission The TGT1 transmits at 100 baud No new 100 baud channel assignments are being given out by NESDIS so the TGT1 can only be used to fill or replace existing 100 baud channel assignments For further information link to the following http noaasis noaa gov DCS index html ...

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Page 39: ...T J 110 FOR I 1 TO J 120 DV I MID A 3 I 2 3 130 NEXT I 140 B RIGHT A LEN A 3 J 160 A B A 170 K INT LEN A 3 180 L J 190 FOR I J 1 TO L 200 DV I MID A 3 I J 2 3 210 NEXT I 270 FOR I 1 TO L 280 A ASC LEFT DV I 1 AND 15 290 B ASC MID DV I 2 1 AND 63 300 C ASC RIGHT DV I 1 AND 63 310 IF A 64 B 1008 THEN DV B 48 64 C 9000 GOTO 400 320 IF A AND 8 THEN SF 1 ELSE SF 1 330 IF A AND 4 THEN SF SF 01 340 IF A ...

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Page 41: ...R ATN X1 SQR X1 X1 1 B BR 1 01745329 115 GOSUB 300 120 A1 90 C R1 A1 01745329 130 S1 6378 AH 0003048 SIN R1 140 S2 35785 6378 S1 150 A2 180 A1 R2 A2 01745329 155 S4 SQR S1 2 6378 AH 0003048 2 160 S3 SQR S4 2 S2 2 2 S4 S2 COS R2 170 X2 SIN R2 S3 S2 180 ER ATN X2 SQR X2 X2 1 E ER 1 01745329 190 PRINT ANTENNA ELEVATION ANGLE E DEGREES 200 PRINT ANTENNA AZIMUTH ANGLE B DEGREES 210 PRINT PRINT PRINT HI...

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Page 43: ...y when the reflected power is large Impedance matching is also measured as reflection coefficient Γ Voltage Standing Wave Ratio VSWR and Return Loss RL Table D 1 1 correlates values between the different measurements Table D 1 1 Impedance Matching Correlation power ref Γ VSWR RL 1 0 1 1 2 20 2 0 14 1 3 17 5 0 22 1 6 13 10 0 32 1 9 10 20 0 44 2 6 7 50 0 71 5 8 3 80 0 89 17 9 1 D 2 Calculating Power...

Page 44: ...ount of power going out to the transmitter if the percent of power reflected is less than 5 Table 1 Program 01 10 0 Execution Interval seconds USER DEFINED PROGRAM Calculate the percent of power reflected with this equation power reflected ref 17 4 fwd 17 4 2 x 100 1 01 Z X F P34 1 5 X Loc RefPwr 2 17 4 F 3 8 Z Loc RefPlus 02 Z X F P34 1 4 X Loc FwdPwr 2 17 4 F 3 9 Z Loc FwdPlus 03 Z X Y P38 1 8 X...

Page 45: ...X F P89 1 7 X Loc PerRef 2 4 3 5 F 4 30 Then Do 08 Z F P30 1 99 923 F 2 0 Exponent of 10 3 11 Z Loc Scratch2 09 Z 1 X P42 1 11 X Loc Scratch2 2 11 Z Loc Scratch2 10 Z X Y P36 1 4 X Loc FwdPlus 2 11 Y Loc Scratch2 3 11 Z Loc Scratch2 11 Z X Y P36 1 11 X Loc Scratch2 2 11 Y Loc Scratch2 3 11 Z Loc Scratch2 12 Z X F P37 1 11 X Loc Scratch2 2 20 F 3 11 Z Loc Scratch2 13 Z LN X P40 1 11 X Loc Scratch2 ...

Page 46: ...ta 20 Real Time P77 1 220 Day Hour Minute prev day at midnight 2400 at midnight Sample the percent of power reflected and the forward power in dBm 21 Sample P70 1 2 Reps 2 6 Loc dBmFwd Transfer data to the TGT1 when Output Flag is set High 10 22 Data Transfer to GOES P120 1 00 self timed buffer append new data to old data 2 4 FWD Ref Power Loc FwdPwr D 3 2 21X The 21X s program is the same as the ...

Page 47: ... 20 401 7295 69 401 8030 21 401 7310 70 401 8045 22 401 7325 71 401 8060 23 401 7340 72 401 8075 24 401 7355 73 401 8090 25 401 7370 74 401 8105 26 401 7385 75 401 8120 27 401 7400 76 401 8135 28 401 7415 77 401 8150 29 401 7430 78 401 8165 30 401 7445 79 401 8180 31 401 7460 80 401 8195 32 401 7475 81 401 8210 33 401 7490 82 401 8225 34 401 7505 83 401 8240 35 401 7520 84 401 8255 36 401 7535 85 ...

Page 48: ...1 8795 170 401 9545 121 401 8810 171 401 9560 122 401 8825 172 401 9575 123 401 8840 173 401 9590 124 401 8855 174 401 9605 125 401 8870 175 401 9620 126 401 8885 176 401 9635 127 401 8900 177 401 9650 128 401 8915 178 401 9665 129 401 8930 179 401 9680 130 401 8945 180 401 9695 131 401 8960 181 401 9710 132 401 8975 182 401 9725 133 401 8990 183 401 9740 134 401 9005 184 401 9755 135 401 9020 185...

Page 49: ...in 0 F 3 Checking the Buffer Check the buffer for the 20 data points 60 bytes with 60 commands 7 and 5 see Section 8 3 If the display shows a number other than 60 the data dump failed You must then reset the scan rate to 10 and return to the Flag status mode to set user FLAG 1 HIGH see Section F 2 F 4 Test Transmission The antenna must be connected before the test or the transmitter will be damage...

Page 50: ... 20 zeros 60 bytes to Random buffer for test transmission 04 Data Transfer to GOES P120 1 11 random buffer overwrite the old data 2 1 FWD Ref Power Loc Data 05 Do P86 1 21 Set Flag 1 Low 06 End P95 07 If Flag Port P91 1 12 Do if Flag 2 is High 2 30 Then Do Clear Random buffer to prevent random transmissions 08 Data Transfer to GOES P120 1 11 random buffer overwrite the old data 2 1 FWD Ref Power L...

Page 51: ...nation for the contiguous United States is shown in Figure G 1 Magnetic declination for a specific site can be obtained from a USGS map local airport or through a computer service offered by the USGS called GEOMAG recommended Section G 2 has a listing of the prompts and the declination determined by GEOMAG for a site near Logan Utah Declination angles east of True North are considered negative and...

Page 52: ...you like information on how to run GEOMAG Y N N Options 1 Field Values D I H X Z F 2 Magnetic Pole Positions 3 Dipole Axis and Magnitude 4 Magnetic Center 1 1 Display values twice N press return Name of field model USCON90 press return Date current date press return Latitude 42 2 N Longitude 111 51 2 W Elevation 4454 Units m km ft ft Example of report generated by GEOMAG Model USCON90 Latitude 42 ...

Page 53: ...Appendix G Local Magnetic Declination G 3 FIGURE G 2 Declination Angles East of True North FIGURE G 3 Declination Angles West of True North ...

Page 54: ...Appendix G Local Magnetic Declination G 4 This is a blank page ...

Page 55: ...he three slots for RAM and PROM will be directly beneath it H 2 Installing New RAM Chips in CR10s with 16K RAM The two 8K RAM chips are found at locations C 11 and C 14 With a small flat screw driver gently pry out the two 8K RAM chips at these locations and replace them with the 32K RAM chips provided in the memory upgrade The new chips should be installed so the notched end is towards the neares...

Page 56: ... pins are seating correctly After installing the chip check for pins that may be bent or not making contact If you notice a bent pin remove the chip carefully straighten it and repeat the installation procedure To make certain that the new chip is installed correctly enter the CR10 B mode and advance to the second window This window displays the PROM signature The five digit number in the window s...

Page 57: ...Appendix H Changing the CR10 s RAM or PROM Chips H 3 FIGURE H 2 Jumper Settings for Different RAM Configurations ...

Page 58: ...Appendix H Changing the CR10 s RAM or PROM Chips H 4 This is a blank page ...

Page 59: ...ar the edges of the front panel of the micrologger Carefully lift the micrologger up and away from the battery pack and disconnect the plastic power connector 2 Lay the micrologger face down on a padded surface Remove the four Phillips head screws from the corners of the aluminum back plate Lift the back plate up and away to expose the 21X CPU board Figure I 1 shows the CPU card the memory chips a...

Page 60: ...were shipped with only two 4K RAM chips Current software does not check for this condition if an old 21X is being upgraded to new software PROMS five 8K RAM chips CSI Model number EMX8 should also be installed The older 21X has jumpers at locations M15 W20 and W27 Figure I 1 With 8K RAM chips installed M15 should be jumpered on the right set of pins and W20 and W27 should be jumpered on the left s...

Page 61: ...J 1 Appendix J Telonics Model TGT1 Certification by NOAA NESDIS ...

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Page 63: ... a minimum magnitude of 0 00001 NESDIS has placed restrictions on the format of data sent over the GOES satellite network The first restriction is the use of 7 data bits and one parity bit per byte The second restriction is the most significant data bit of each byte bit 6 is always set Without data each byte transmitted over the satellite has the format of p1xxxxxx The x s will hold the 6 bits per...

Page 64: ...e positive data point conversion Byte Label byte 3 byte 2 byte 1 Actual data point 01000101 11110010 11010010 Drop first 2 bits of each byte 000101 110010 010010 Combine the 3 bytes into one word 000101 110010 010010 Convert from Binary to Decimal 23698 Example of a negative data point conversion Byte Label byte 3 byte 2 byte 1 Actual data point 01111010 11001101 11101101 Drop first 2 bits of each...

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