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Altina GGM308U - page 1
G G - - M M o o u u s s e e G G P P S S U U s s e e r r M M a a n n u u a a l l G G P P S S G G G G M M 3 3 0 0 8 8 U U U U S S B B C C o o n n n n e e c c t t o o r r Version 1.01 2004 / 09 / 16 Copyright is reserv ed by Altin a i ...
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Altina GGM308U - page 2
INDEX 1 OVERVIEW ........................................................................................................... 3 2 PRODUCT FEATURE ....................................................................................... 3 3 SPECIFIC ATION ................................................................................................. ...
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Altina GGM308U - page 3
1 OVERVIEW Congr atulation on y our pur chase of Alti na, w hich manufactur e and pr ovide v arious GPS applic ations. Alti na’ s GGM308U GPS Receiv er prov ides y ou var ious appli cations such as car n avi gation, mar ine nav igation, m apping, s urv eying, securi ty , agricul ture and s o on. It communicat es w ith devi ce (such as PocketPC or ...
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Altina GGM308U - page 4
FLASH base program memor y 3 SPECIFICA TION 4 Key Feture Frequency L1, 1575.42 MHz C/A Code 1.023 MHz chip rate Channels 12 Sensitiv ity - 173 dBW Non DGPS (Differential GPS) Position Hor izont al 5 to 25 meter CEP , wi thout SA V elocity 0.1 meter/second, w ithout SA T ime 1 microsecond sy nchroniz ed GPS time DGPS (Different ial GPS) Position ...
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Altina GGM308U - page 5
Dimension 2.32" x 1.85" x 0.82" (59.32mm x 51.28mm x 20.3mm) Cable Leng th 60" (1500mm) 5 ...
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Altina GGM308U - page 6
4 HA RDWARE 4.1. Dimension 6 ...
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Altina GGM308U - page 7
4.2. Output terminal and definition Output terminal:: USB connector Pin definition: Pin Signal Name 1 +5V 2 D + 3 D - 4 Ground 4.3. USB Driver System R equir ement IBM, Penti um or abov e and other comp atible PC; 16 MB and a bove me mory; W indows 98/Me/2000; VGA Graphic Adapter . Installation 1. Copy entire 【 GGM308 USB_Dr iver ...
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Altina GGM308U - page 8
Please not e that t he Vir tual COM Por t nu mber mig ht be di ff ere n t from ever y comput er. Before using nav i g ati ng softw are, please con firm th e C OM P or t n u m ber cr eat ed by your computer and pr ovi ded by y our navi gation s oftwar e. Otherw ise, the navi gating software won’t receive the satellite signa l, be cause of th e u n ...
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Altina GGM308U - page 9
Position Fix Indicator 1 See T able 5-3 Satellites Used 07 Range 0 to 12 HDOP 1.0 Horizontal Dilution o f Precision MSL Altitude 9.0 Meters T able 5-2 GGA Data Form at-continue Name Example Unit s Description Units M Meters Geoid Separ ation Meters Units M Meters Age of Diff. Cor r . second Null fields w hen DGPS is not used Dif f. Ref. S tation ID ...
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Altina GGM308U - page 10
Checksum *2C <CR> <LF> End of message termination 5.4. GNSS DOP and Activ e Satellites (GSA) T able 5-4 contai ns the values for the follow ing example. $GPGSA ,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 T able 5-5 G S A D a t a F o r m a t Name Example U nit s Description Message ID $GPGSA GSA protocol header Mode 1 A See Table ...
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Altina GGM308U - page 11
5.5. GNSS Satellites in View (GSV) T able 5-8 contai ns the values for the follow ing example $GPGSV ,2,1,07,07,79,048,42,02,51,06 2,43,26,36,256,42,27,27,138,42*71 $GPGSV ,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 T able 5-8 G SV Data Form at Name Example Unit s Description Message ID $GPGSV GSV protocol header Number of Messages 2 Range 1 ...
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Altina GGM308U - page 12
UTC T ime 161229.487 hhmmss.sss S tatus A A=dat a valid or V=data not v alid Latitude 3723.2475 ddmm.mmmm N/S Indicator N N=north or S=south Longitude 12158.3416 dddmm.mmmm E/W Indicator W E=east or W =west S peed Over Ground 0.13 knots Course Ov er Ground 309.62 degrees T rue Date 120598 ddmmyy Magnetic V ariation(1) deg rees E=east or W =west Che ...
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Altina GGM308U - page 13
NOTE: SiRF T echnology Inc. does not support m agnetic declination. All “ course over ground” data are geodetic W GS84 directions . 5.8. R TCM Received Dat a The de fault co mmunication p arameters for D GPS Input are 4 800 ba ud, 8 data bi t s , s t op bit , and no p arity . Positi on accuracy of less than 5 me ters can be achi eved w ith the ...
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Altina GGM308U - page 14
appropriatel y for safe shipment. Altina is not r esponsible for Customer products r eceived wi thout a warr anty serv ice authorizati on and may be rej ected. Repaired or replacement products become the property of Altina. W AR RANTIES EX CLUSIVE: THE FOREGOING W ARRANTIES AND REMEDIES ARE EXCLUSIVE AN D IN LIEU OF AL L OTHER W ARRANTIES, E XPRESS ...
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