EM-406 data format

GPS/GNSS Development Boards
1

Hi - am I right to understand that the EM-406 module only supports the NMEA GGA, GSA, GSV, RMC, VTG, GLL outputs, and no inputs? Reason I ask is I’ve been looking over the SIRF NMEA manual (linked to from the sfe EM-406 page: http://www.sparkfun.com/datasheets/GPS/ … anual1.pdf) and it talks of many commands not mentioned in the EM-406 module. These aren’t mentioned in the EM-406 manual though. For example, the $PSRF can be used to change the baud rate, which I think would be very helpful.

Thanks!

2

You can change alot of settings using a program called SiRFDemo, found here

http://www.gpspassion.com/forumsen/topi … C_ID=25575

3

wsc:
You can change alot of settings using a program called SiRFDemo, found here

http://www.gpspassion.com/forumsen/topi … C_ID=25575

Very cool. Any idea if that just uses the NMEA commands I mentioned earlier? Or if it uses something entirely different? Thanks!
4

it posts NEMA commands. take your SiRF demo and attach its COM port to another COM port running hyperterm.

5

Hi,

wsc:
You can change alot of settings using a program called SiRFDemo, found here

Do you know if these changes are maintained in non-volatile memory or do I loose the settings when I remove power from the unit?

Thanks,

Serge

6

Settings are stored in battery backed memory - disconnect the battery, everything goes away. IMHO, that’s a good thing.