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Home --> GPS Antenna --> GPS Receiver

GM65



Description


Small size and ruggedness, demand of vehicle locating and marine navigation GPS Receiver that will sustain harsh environment.

GM65 is a Mini Marine GPS receiver build-in well-known SiRF StarIII GPS chipset. GM65 provides customer high position, velocity and time accuracy performances as well as high sensitivity and tracking capabilities. Customers benefit from the strength of both companies.Thanks to the low power consumption technology, the GPS-Mouse receiver is ideal for many portable applications such asPDA, Tablet PC, smart phone etc.

Features
Built-in high performance SiRF Star III low power chipset.
Current consumption 40mA
20 channels parallel.
Average Cold Start in 42 seconds.
-159 dBm sensitivity in tracking mode
NMEA0183 compliant protocol
Extreme fast TTFF at low signal level
Water proof IP67

Applications
Automotive
Personal/Portable Navigation (PDA)
Geographic Surveying
Sports and Recreation
Marine Navigation
Fleet Management
AVL and Location-Based Services

Specifications

GPS Features Datum
Chipset SiRF Star III LP chipset

 

WGS-84
Frequency L1, 1575.42MHz  
C/A Code 1.023MHz chip rate Dynamic Conditions
Channels 20 channels Altitude <18,000 m (60,000feet)
Antenna Built-in 25x25x4mm patch antenna

 

Velocity <515 m/s (1000 knots)
  Acceleration <4G
Sensitivity Motional Jerk 20m/sec3 max.
To - 159dBm Tracking,  
Superior Urban Canyon Performance Interface
  GPS Protocol: NMEA-0183 - GGA, GSA, GSV, RMC, VTG(Default)
Time to First Fix (TTFF) RS232 or TTL Output
Cold Start 42 sec, average Data bit: 8, stop bit: 1 (Default)
Warm Start 38 sec, average Baud Rate : 4800 (Default)

 

Hot Start 6 sec, average Device Size and Weight
Reacquisition 0.1 sec 60mm(Dia.) x 45mm(H)
65grams (w/o cable & connector).

 

Update rate : 1 Hz (std.) Bulkhead mount with 0.8 inch threaded wing nut (standard accessory).
Accuracy Environmental Characteristics
Position 5m CEP without SA, 10m 2D, RMS Operating Temperature - 30°C to + 85°C
Velocity 0.1m/sec, without SA
Time 1μs synchronized to GPS time Storage Temperature - 40°C to + 95°C
Cable(standard) 0.5M-PS2(M)    
Optional cable 5M & 10M & 15M
PS2(M) to PS2(F)
Power : Operation Current 55mA (Average) Power Input 5V ±5% VDC
Optional :
RS232 Interface cable & Power cable
1M DB9 & 1M 12~40V Input to 5V
1M OPEN & 1M 12~40V Input to 5V

 

Optional : Bluetooth interface cable 12V-26V Input & Bluetooth output
Optional : USB interface cable PS2(F) to USB
Optional mounting FB6 SUS Water Proof IP67
All specifications are subject to change without notice

Standard :

Optional Cable :

Pin Assignment of standard PS2 male Din Jack

Pin
Signal
1
GND
2
+5V
3
N.C.( RS-232_Rx on demand)
4
TTL_RX
5
N.C.( RS-232_Tx on demand)
6
TTL_TX

Optional RS232 Interface cable & Power cable :

GM65A GM65B GM65C

Pin Assignment of D-SUB 9 PIN Female connector


GM62A
DB9(F) - RS232& Power cable
GM62B
OPEN- RS232 & Power cable
GM62C
DB9
PIN1 N.C VCC 12~40V to 5V Red Vcc VCC 5V
PIN2 RS232-TX   Green RS232-TX RS232-TX
PIN3 RS232-RX   White or Blue RS232-RX RS232-RX
PIN4 N.C.   Yellow TTL - TX N.C.
PIN5 GND GDN Orange TTL - RX GND
PIN6 N.C.   Black GND N.C.
PIN7 N.C.   Shielded wire GND N.C.
PIN8 N.C.       N.C.
PIN9 N.C.       N.C.

Optional : Bluetooth interface cable
Model : GM65BT

Optional : USB interface cable
GM65-USB (5V)

Optional mounting : FB6 SUS

Output NMEA Messages
Table 3 NMEA-0183 V2.3 Output Messages

NMEA Sentence
Description
GGA (default)
Global Positioning System Fixed Data
GLL (default)
Geographic Position - Latitude/Longitude
GSA (default)
GNSS DOP and Active Satellites
GSV (default)
GNSS Satellites in View
RMC (default)
Recommended Minimum Specific GNSS data
VTG (default)
Course Over Ground and Ground Speed
ZDA (default)
Time and Date

GGA--- Global Positioning System Fixed Data
Table 4 contains the values for the following example:
$GPGGA,092725.00,4717.11399,N,00833.91590,E,1,8,1.01,499.6,M,48.0,M,,0*5B
Table 4 GGA Data Format

Name
Example
Units
Description
Message ID
$GPGGA
 
GGA protocol header
UTC Time
092725.00
 
hhmmss.ss, Current time
Latitude
4717.11399
 
ddmm.mmmmm, Degrees + minutes
N/S Indicator
N
 
N=north or S=south
Longitude
00833.91590
 
dddmm.mmmmm, Degrees + minutes
E/W Indicator
E
 
E=east or W=west
Position Fix Indicator
1
 
See Table 5
Satellites Used
8
 
Range 0 to 12
HDOP
1.01
 
Horizontal Dilution of Precision
MSL Altitude
499.6
m
 
Units
M
meters
Meters (fixed field)
Geoid Separation
48.0
m
 
Units
M
meters
Meters (fixed field)
Age of Differential Corrections  
second
Blank (Null) fields when DGPS is not used
Diff. Ref. Station ID
0
   
Checksum
*5B
   
<CR> <LF>    
End of message termination


Table 5 Position Fix Indicator
Value
Description
0
No fix or invalid
1
Standard GPS (2D/3D)
2
Differential GPS
6
Estimated (DR) Fix

GLL--- Geographic Position - Latitude/Longitude
Table 6 contains the values for the following example:
$GPGLL,4717.11364,N,00833.91565,E,092321.00,A,A*60
Table 6 GLL Data Format

Name
Example
Units
Description
Message ID
$GPGLL
 
GLL protocol header
Latitude
4717.11364
 
ddmm.mmmmm, Degrees + minutes
N/S Indicator
N
 
N=north or S=south
Longitude
00833.91565
 
dddmm.mmmmm, Degrees + minutes
E/W Indicator
E
 
E=east or W=west
UTC Time
092321.00
 
hhmmss.ss, Current time
Status
A
 
V = Data Invalid / Receiver Warning,
A=Data Valid
Status
A
 
N=No Fix, A=Autonomous GNSS Fix,
D=Differential GNSS Fix,
E=Estimated/Dead Reckoning Fix
Checksum
*60
   
<CR> <LF>    
End of mes End of message termination

GSA---GNSS DOP and Active Satellites
Table 7 contains the values for the following example:
$GPGSA,A,3,23,29,07,08,09,18,26,28,,,,,1.94,1.18,1.54*0D
Table 7 GSA Data Format

Name Example Units Description
Message ID
$GPGSA
 
GSA protocol header
Mode 1 (Smode)
A
 
See Table 8
Mode 2 (Fix Status)
3
 
See Table 9
Satellite Used
23
 
SV on Channel 1
Satellite Used
29
 
SV on Channel 2
     
Repeated for each channel
Satellite Used
   
Sv on Channel 12
PDOP
1.94
 
Position Dilution of Precision (00.0 to 99.99)
HDOP
1.18
 
Horizontal Dilution of Precision (00.0 to 99.99)
VDOP
1.54
 
Vertical Dilution of Precision (00.0 to 99.99)
Checksum
*0D
   
<CR> <LF>
   
End of message termination
Table 8 Mode 1 (Smode)
Value
Description
M
Manual- forced to operate in 2D or 3D mode
A
Automatic-allowed to automatically switch 2D/3D
Table 9 Mode 2 (Fix Status)
Value
Description
1
Fix not available
2
2D Fix
3
3D Fix

GSV---GNSS Satellites in View
Table 10 contains the values for the following example:
$GPGSV,3,1,10,23,38,230,44,29,71,156,47,07,29,116,41,08,09,081,36*7F
$GPGSV,3,2,10,10,07,189,,05,05,220,,09,34,274,42,18,25,309,44*72
$GPGSV,3,3,10,26,82,187,47,28,43,056,46*77
Table 10 GSV Data Format

Name Example Units Description
Message ID
$GPGSV
 
GSV protocol header
Number of Messages
3
 
Total number of GPGSV messages being output, Range 1 to 3
Message Number
1
 
Number of this message, Range 1 to 3
Satellites in View
10
   
Satellite ID
23
 
SV ID (GPS: 1-32, SBAS 33-64 (33=PRN120))
Elevation
38
degree
Maximum 90
Azimuth
230
degree
Range 0 to 359
SNR (C/No)
44
dBHz
Range 0 to 99, null when not tracking
     
Data of 2nd, 3rd Satellite (same as
above)
Satellite ID
29
 
SV ID
Elevation
71
degree
Maximum 90
Azimuth
156
degree
Range 0 to 359
SNR (C/No)
47
dBHz
Range 0 to 99, null when not tracking
       
Checksum
*7F
   
<CR> <LF>    
End of message termination

RMC---Recommended Minimum Specific GNSS Data
Table 11 contains the values for the following example:
$GPRMC,083559.00,A,4717.11437,N,00833.91522,E,0.004,77.52,091202,,,A*57
Table 11 RMC Data Format

Name Example Units Description
Message ID
$GPRMC
 
RMC protocol header
UTC Time
083559.00
 
hhmmss.ss, Current time
Status
A
 
A=data valid or V=data not valid
Latitude
4717.11437
 
ddmm.mmmmm, Degrees + minutes
N/S Indicator
N
 
N=north or S=south
Longitude
00833.91522
 
dddmm.mmmmm, Degrees + minutes
E/W Indicator
E
 
E=east or W=west
Speed
0.004
knots
Speed Over Ground
COG
77.52
degree
Course Over Ground (true)
Date
091202
 
Ddmmyy, Current Date in Day, Month Year format
Magnetic Variation
 
degrees
E=east or W=west (Not being output by receiver)
Magnetic variation E/W indicator
   
Not being output by receiver
Mode Indicator
A
 
N=No Fix, A=Autonomous GNSS Fix,
D=Differential GNSS Fix,
E=Estimated/Dead Reckoning Fix
Checksum
*53
   
<CR> <LF>
   
End of message termination

VTG---Course Over Ground and Ground Speed
Table 12 contains the values for the following example:
$GPVTG,77.52,T,,M,0.004,N,0.008,K,A*06
Table 12 VTG Data Format

Name Example Units Description
Message ID
$GPVTG
 
VTG protocol header
COG
77.52
degrees
Course Over Ground (true)
 
T
 
True
COG
 
degrees
Course Over Ground (maganetic) (Not being output by receiver)
 
M
 
Magnetic
Speed
0.004
knots
Speed over ground
Units
N
 
Knots
Speed
0.008
km/hr
Speed over ground
Units
K
 
Kilometer per hour
Mode
A
 
N=No Fix, A=Autonomous GNSS Fix, D=Differential GNSS Fix, E=Estimated/Dead Reckoning Fix
Checksum
*0B
   
<CR> <LF>
   
End of message termination

ZDA---Time and Date
Table 13 contains the values for the following example:
$GPZDA,082710.00,16,09,2002,00,00*64
Table 13 ZDA Data Format

Name
Example
Units
Description
Message ID
$GPZDA
 
ZDA protocol header
UTC Time
081727.00
degrees
hhmmss.ss
Day
16
 
01 to 31
Month
09
 
01 to 12
Year
2002
 
4 digit year
Local zone hours
00
 
(Not being output by receiver) (fixed to 00)
Local zone minutes
00
 
(Not being output by receiver) (fixed to 00)
Checksum
*64
   
<CR> <LF>
   
End of message termination


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