506584
8
Zoom out
Zoom in
Previous page
1/16
Next page
5
2.1.3 LED & External Antenna
LED
LED OFF GR-271 CF GPS Receiver Switch Off.
LED ON GR-271 CF GPS Receiver Signal Searching.
LED Flashing GR-271 CF GPS Receiver Signal Position Fixed.
External Antenna Connector (MCX)…..Optional
As using GR-271 CF GPS Receiver in a RV car, truck or bus, it might receive poor
signals through limited view to the sky. Replace the foldable antenna with the active one to
get better satellite signals. Windshields with heavy tinted or likewise may interfere with
signal receiving. An active antenna then becomes essential.
2.2 Software Interface
The GR-271 interface protocol is based on the National Marine Electronics Association's NMEA 0183 ASCII
interface specification, which is defined in NMEA 0183, Version 2.2 and the Radio Technical Commission for Maritime
Services (RTCM Recommended Standards For Differential Navstar GPS Service, Version 2.1, RTCM Special Committee
No.104).
2.2.1 NMEA Transmitted Messages
The GR-271PS supported by SiRF Technology Inc. also outputs data in NMEA-0183 format as defined by the
National Marine Electronics Association (NMEA), Standard.
The default communication parameters for NMEA output are 4800 baud, 8 data bits, stop bit, and no parity.
Table 2-1 NMEA-0183 Output Messages
NMEA Record Description
GGA Global positioning system fixed data
GSA GNSS DOP and active satellites
GSV GNSS satellites in view
RMC Recommended minimum specific GNSS data
2.2.1.1 Global Positioning System Fix Data (GGA)
Table 2-2 contains the values for the following example:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18
Table 2-2 GGA Data Format
Name Example Units Description
Message ID $GPGGA GGA protocol header
UTC Time 161229.487 hhmmss.sss
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
Position Fix Indicator 1 See Table 2-3
Satellites Used 07 Range 0 to 12
HDOP 1.0 Horizontal Dilution of Precision
8


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Holux GR-271 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Holux GR-271 in the language / languages: English as an attachment in your email.

The manual is 0,98 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info