MC7430 GPS not working

Hi,

I am trying to test an MC7430 on Windows 10 and am having two problems.

  1. The GPS function is now working. The GPS panel opens but the application cannot acquire a signal.
  2. The throughput from the carrier is only peaking at 30Mbps. I should be able to get at least 150Mbps

I have downloaded the latest drivers and applications as at last Wednesday.

Any assistance is appreciate.

Hi,
How are you testing? can you share the application/AT log?

-Alex

Hi Alex,

I am not sure how to get the AT log. If you can tell me how to get the application/AT log files I will post them for debugging help.

I have tested the unit with the same software and drivers pack on Windows 7 and it all works as expected.

I have installed it on a number of Windows 10 systems with the same result.

When I open the GPS application, it says it has connected, but does not correctly receive any data from the GPS system. I connected a terminal app to the COM port for the NMEA device and have a sample output.

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2016.04.28 19:23:56 =~=~=~=~=~=~=~=~=~=~=~=
$GPVTG,T,M,N,K,N2C
$GPGSA,A,1,1E
$GPGGA,0,66
$GPRMC,V,N
53
$GPGSV,3,1,10,01,30,327,41,09,16,261,43,23,45,246,41,03,75,223,70
$GPGSV,3,2,10,06,07,216,11,09,331,16,22,042,22,68,039,70
$GPGSV,3,3,10,26,32,073,31,33,133,7A
$GPVTG,T,M,N,K,N
2C
$GPGSA,A,1,1E
$GPGGA,0,66
$GPRMC,V,N
53
$GPGSV,3,1,10,01,30,327,41,09,16,261,43,23,45,246,41,03,75,223,70
$GPGSV,3,2,10,06,07,216,11,09,331,16,22,042,22,68,039,70
$GPGSV,3,3,10,26,32,073,31,33,133,7A
$GPGGA,092423.0,3753.755885,S,14513.920927,E,1,03,3.1,72.7,M,3.0,M,4A
$GPVTG,0.0,T,352.6,M,0.0,N,0.0,K,A
21
$GPRMC,092423.0,A,3753.755885,S,14513.920927,E,0.0,0.0,280416,7.4,E,A
19
$GPGSA,A,2,01,09,23,3.3,3.1,1.0
39
$GPGSV,3,1,10,01,30,327,41,03,75,223,36,09,16,261,43,11,09,331,32
79
$GPGSV,3,2,10,16,22,042,33,22,68,039,37,23,45,246,41,26,32,073,34
7B
$GPGSV,3,3,10,31,33,133,32,06,07,216,7E
$GPGGA,092424.0,3753.755912,S,14513.920911,E,1,09,0.7,72.6,M,3.0,M,49
$GPVTG,0.0,T,352.6,M,0.0,N,0.0,K,A
21
$GPRMC,092424.0,A,3753.755912,S,14513.920911,E,0.0,0.0,280416,7.4,E,A
14
$GPGSA,A,2,01,03,09,11,16,22,23,26,31,1.0,0.7,0.7
39
$GPGSV,3,1,10,01,30,327,41,03,75,223,35,09,16,261,43,11,09,331,33
7B
$GPGSV,3,2,10,16,22,042,33,22,68,039,37,23,45,246,41,26,32,073,34
7B
$GPGSV,3,3,10,31,33,133,32,06,07,216,7E
$GPGGA,092425.0,3753.755920,S,14513.920838,E,1,09,0.7,72.6,M,3.0,M,43
$GPVTG,0.0,T,352.6,M,0.0,N,0.0,K,A
21
$GPRMC,092425.0,A,3753.755920,S,14513.920838,E,0.0,0.0,280416,7.4,E,A
1E
$GPGSA,A,2,01,03,09,11,16,22,23,26,31,1.0,0.7,0.7
39
$GPGSV,3,1,10,01,30,327,41,03,75,223,36,09,16,261,43,11,09,331,3378
$GPGSV,3,2,10,16,22,042,32,22,68,039,38,23,45,246,41,26,32,073,34
75
$GPGSV,3,3,10,31,33,133,32,06,07,216,7E
$GPGGA,092426.0,3753.755885,S,14513.920823,E,1,09,0.7,72.8,M,3.0,M,4A
$GPVTG,0.0,T,352.6,M,0.0,N,0.0,K,A
21
$GPRMC,092426.0,A,3753.755885,S,14513.920823,E,0.0,0.0,280416,7.4,E,A
19
$GPGSA,A,2,01,03,09,11,16,22,23,26,31,1.0,0.7,0.739
$GPGSV,3,1,10,01,30,327,41,03,75,223,36,06,07,216,21,09,16,261,43
77
$GPGSV,3,2,10,11,09,331,33,16,22,042,33,22,68,039,37,23,45,246,4175
$GPGSV,3,3,10,26,32,073,34,31,33,133,32
7C
$GPGGA,092427.0,3753.755868,S,14513.920802,E,1,09,0.7,72.9,M,3.0,M,*4A
=~=~=~=~=~=~=~=~=~=~=~=

This makes me think that the application is having problems connecting to the COM port and receive the data.

Thanks in advance.

Do you have antennas connected to all three antenna ports? First suggestion for GNSS would be to test outdoors in open sky conditions (if you haven’t done so already).

I am only testing with the Main and GPS antenna ports in use.

The card is in an external USB adaptor and appears to be working correctly.

When I use the unit with Windows 7, the GPS application that comes with the Skylight installer package gives us a location and works as expected.

When I use the same unit with a machine running Windows 10 the GPS application cannot connect to the GPS correctly and resolve a position.

I have tested a number of different machines from different manufacturers both running Windows 7 and 10. The results re the same, Windows 7 works, Windows 10 does not.

Testing has been done with the GPS antenna outdoors and has no overhead obstructions.