User Position, Velocity & Time II (D1h)

Closed Thread
Results 1 to 3 of 3
  1. #1
    Join Date
    Oct 2008

    Default User Position, Velocity & Time II (D1h)

    Hi All
    I have a GPS module which i want to request data from and not use the automatic output sentences.
    i can control the NMEA sentences but i cannot find any information on requesting information from GPS module.
    i have tried the data sheet but the syntax isn't clear to me.
    Has anyone used this approach??
    if so an example of the syntax would be appreaciated.
    the module is a GT-310f
    thanks in advance.

  2. #2
    Join Date
    Feb 2006
    Gilroy, CA


    I looked around a little bit, but I could not find the manual for the binary protocol. There is supposed to be one called: "Binary Message Protocol User’s Guide" If you could get your hands on one, it would list the commands available to talk to the gps. Here is just the general datasheet, but you probably have that already: It only lists the NMEA protocol for data coming out of the gps, not binary commands.

    (note that the manufacturer spelled the name of their website wrong in their documentation). So the real link is:
    But their website has a data sheet with even less information. You may be able to ask them for the Binary protocol.

  3. #3
    Join Date
    Oct 2008


    Thanks for the reply.
    i have the full protocol description (attached) from rfsolutions but it is very vague about the query commands.i have worked out the change NMEA output.
    the string they display appears to require sending data in all the fields to get data back.
    not many people seem to use the querys they seem to take the auto output sentences and strip out the required parts.
    i was hoping to give the pic an easy life and have every thing in one sentence and only when i ask for it.....
    Attached Images Attached Images

Similar Threads

  1. 12F629 LDR - Light Dependant Resistor
    By Dennis in forum Schematics
    Replies: 15
    Last Post: - 18th February 2010, 22:33
  2. Serout2/serin2 Pbp Problem
    By SOMRU in forum mel PIC BASIC Pro
    Replies: 3
    Last Post: - 11th December 2006, 19:55
  3. Some initial help for a first time PBP user
    By jtburnham in forum mel PIC BASIC Pro
    Replies: 2
    Last Post: - 29th April 2006, 07:32
  4. Timer in real time
    By martarse in forum mel PIC BASIC Pro
    Replies: 7
    Last Post: - 29th July 2005, 14:24
  5. need help first time user of picmicro
    By tekdavid in forum mel PIC BASIC
    Replies: 2
    Last Post: - 29th March 2005, 04:39

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts