- Fri Jan 07, 2011 2:03 am
#116802
I've managed to get my SUP500F talking to my PC using a MAX3232. At 1Hz I can get a 3D position fix, using the SkyTraq software to interpret the NMEA. Similarly I get a fix at 2Hz (changed by going to Binary -> Configure position update rate -> 2Hz -> Update to SRAM). However, at any of the higher speeds I no longer get a fix (or any satellite link at all). I still get NMEA messages, just no fix. Changing back to 2Hz gets me an immediate fix.
I am in South Africa, so I don't know if we have dodgy old satellites that don't work at >2Hz, but that seems rather silly.
EDIT: Ok, should have known that GPS satellites are not geostationary... - so it's definitely not due to dodgy satellites.
We definitely don't have WAAS. I know the SUP500 has lots of issues, so might this be the problem?
Or is there something else I must change to make >2Hz work?
I don't know if this information is useful:
ROM code
SkyTraq Kernel Version 56.48.54
SkyTraq Version 55.53.48
SkyTraq Revision: 2000.0.0
System Code:
SkyTraq Kernel Version 1.4.94
SkyTraq Version 1.10.22
SkyTraq Revision 2010.4.28
Help will be appreciated!
Ben
I am in South Africa, so I don't know if we have dodgy old satellites that don't work at >2Hz, but that seems rather silly.
EDIT: Ok, should have known that GPS satellites are not geostationary... - so it's definitely not due to dodgy satellites.
We definitely don't have WAAS. I know the SUP500 has lots of issues, so might this be the problem?
Or is there something else I must change to make >2Hz work?
I don't know if this information is useful:
ROM code
SkyTraq Kernel Version 56.48.54
SkyTraq Version 55.53.48
SkyTraq Revision: 2000.0.0
System Code:
SkyTraq Kernel Version 1.4.94
SkyTraq Version 1.10.22
SkyTraq Revision 2010.4.28
Help will be appreciated!
Ben