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  5. Owner's Manual

WATSON INDUSTRIES GGC-E101 Owner's Manual

Manual is about: GPS Module and Dual Antenna System

Summary of GGC-E101

  • Page 1

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 1 gps gyro compass system owner's manual part number: ggc-e101 gps module and dual antenna system watson industries, inc. 3035 melby street eau claire, wi 54703 phone: (715) 839-0628 fax: (715) 839-8248 email: support@watson-gyro.Com.

  • Page 2

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 2 table of contents 1. Introduction ........................................................................................................ 3 2. Product description........................................................................................

  • Page 3: Caution!

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 3 caution! Watson sensors are rugged devices that have been used successfully in a number of harsh environments. The components have been qualified to withstand a mechanical shock of 200g 's or greater, and most enclosures provide an added level of p...

  • Page 4

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 4 heading direction orientation the ggc unit side that has carrying handle needs to be aligned along the heading direction. See figure 1. Figure 1 – alignment mounting the ggc-e101 case needs to be placed on a flat horizontal surface. Unsnapping the ...

  • Page 5

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 5 figure 2 – ggc-e101 stowed deployment after the unit is aligned and connections have been completed, the antennas can be deployed. See figure 3 for information on deploying the antennas. First open the two straps that secure the antenna assembly. N...

  • Page 6

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 6 unobstructed view of the entire sky to receive signals from gps satellites. The ggc is now ready to operate. See the operation section on page 8. Figure 3 – deployment stowing when finished taking measurements with the ggc it is time to repack the ...

  • Page 7

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 7 the rs-232 serial connection to the computer. See figure 4 for information for help in stowing the antenna assembly and cable. Now unclasp the right-hand antenna and swing the antenna arm clockwise to the stowed position. Next unclasp the left-hand...

  • Page 8

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 8 operation power up the ggc unit output messages can be read by using a terminal program. Now it is time to power up the data collection computer and start the terminal program for the serial port connected to the ggc. Next the power needs to be swi...

  • Page 9

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 9 example of the ggs header: ggc-e101 initializing serial number - 0177 last calibrated - 10/12/10 software version - gg01_00a 2010-12-13 copyright (c) 1990 through 2010 watson industries, inc. Normal operation during normal operation, the ggc will o...

  • Page 10

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 10 $gphdt message format the $gphdt consists of a string ascii characters sent asynchronously at regular intervals. The string is sent at 9600 baud with eight data bits, one stop bit and no parity. The contents of this string are formed as follows: $...

  • Page 11

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 11 5. “dddmm.Mmmmm” is an eleven character string representing the longitude in “ddd” degrees, “mm” minutes, and “.Mmmmm” decimal fraction minutes. This data is followed by a comma. 6. “s” is a single character representing the longitude direction. S...

  • Page 12

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 12 06 6 satellites being used 1.1 hdop = 1.1 275.2,m altitude = 275.2 meters geoidal separation –33.0 meters -33.0,m differential correction age= 6.0 seconds 6.0 reference station identification 0133 checksum *7b $gpgll message format the $gpgll cons...

  • Page 13

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 13 example: $gpgll,4451.84239,n,09128.00147,w,175612.00,a,d*78 $gpgll message header 4451.84239 latitude 44 deg 51.84239 minutes n north latitude 09128.00147 longitude 91 deg 28.00147 minutes w west longitude 175612.00 universal time 17 hrs 56 min 12...

  • Page 14

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 14 11. “*cc” is a three character string representing an asterisk followed by a two digit hexadecimal checksum. 12. The string is terminated by a carriage return and line feed. There will then be a short interval with no data transmission before the ...

  • Page 15

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 15 7. “s” is a single character representing the longitude direction. S = e for east longitude, s = w for west longitude. This data is followed by a comma. 8. “zzz.Zz” is a variable character string (minimum-4, maximum-6) representing the ground spee...

  • Page 16

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 16 optional rs-232 digital output the optional rs-232 output consists of a string of decimal ascii characters sent asynchronously at regular intervals. Nominally, the string is sent at 9600 baud with eight data bits, one stop bit and no parity. The m...

  • Page 17

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 17 10. The string is terminated by a carriage return. There will then be a short interval with no data transmission before the next string begins. Example: g 161409.9 -000.8 +00.1 273.4 +028.9 4451.84413,n 09128.00182,w 00894 ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ (1) ut...

  • Page 18

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 18 specifications attitude range: bank ±180° range: elevation ±75° resolution: 0.02° binary mode (14 bit) accuracy: static ±0.25° * accuracy: dynamic ±0.5% heading range: 0° - 360° resolution: 0.02° binary mode (14 bit) accuracy: static ±0.3° rms usi...

  • Page 19

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 19 dimensions figure 6 ggc-e101 dimensions in inches y z x z y x x z y forward handle.

  • Page 20

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 20 warning rough handling, dropping, or miswiring this unit is likely to cause damage. Disclaimer the information contained in this manual is believed to be accurate and reliable; however, it is the user’s responsibility to test and to determine whet...

  • Page 21

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 21 customer service all repairs, calibrations and upgrades are performed at the factory. Before returning any product, please contact watson industries to obtain a returned material authorization number (rma). Return address & contact information wat...

  • Page 22

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 22 appendix a the following data items are available in the optional rs-232 digital output. Their full-scale ranges are listed. See appendix b for more information. Inertial output full scale decimal time utc 1 hhmmss bank angle ±179.9º elevation ang...

  • Page 23

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 23 the status bits contain the following information: bit description (if set) 0 bank error flag 1 elevation error flag 2 heading error flag 3 system error flag 4 velocity error flag 5 ready flag 6 checksum error flag the flag bits contains the follo...

  • Page 24

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 24 appendix b determining and setting output channels for optional rs-232 digital output to determine which channels are present. Hook the unit up to your computer’s serial port. Use a terminal program to interface with the unit. Turn on unit. Wait f...

  • Page 25

    Watson industries, inc. Ggc-e101 rev a 08/30/2013 25 setting output format there are two output formats: optional decimal ascii output – '_' command. Standard output – '%' command. To change the output format: connect the unit to your computer’s serial port. Use a terminal program to interface with ...