Expedition Expedition Navigation Software

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Technical Q&A » Expedition running with a Signet SmartPak » 8/23/2018 5:51 am

pjl
Replies: 17

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My research says that the electrical specs changed from v1.5 to 2.0 and I'm suspicious that the 30~ year old Signet design may make it a deal breaker to get NMEA data into their NMEA port unless it is v1.5.

Lack of schematics and circuit diagrams is another problem with the Signet.  Current Signet operation is apparently not equipped or unwilling to provide any legacy information.

I still have a few experiments to conduct as time and opportunity allow, but chances of success are dimming rapidly.  Guess the owner will have to consider instrument upgrade, but that will probably never happen.

Thx for your help, pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/22/2018 7:46 pm

pjl
Replies: 17

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Nick, This may be a lasssssssssssssst grasp at a straw, but is it possible to add a legacy NMEA 0183 v1.5 mode to the instrument panel?

Thx, pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/20/2018 1:00 pm

pjl
Replies: 17

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Just assuming here, but if the Signet SmartPak can only understand v1.5, then this project may have hit the wall.

Here's a known fact.  An old Garmin GPS (60 maybe?) hooked into the system provides all relevant GPS data to the system.  Changing the GPS to a Garmin 60csx, which transmits v2.0 according to the garmin Support desk, removes all gps data from the Signet displays.

Does't this mean the SmartPak can only read the v1.5 sentences?

TIA, pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/20/2018 4:59 am

pjl
Replies: 17

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Correct.  The indented data is the sent data stream.  Does that stream identify itself as v1.5 or v2.0 by its characteristics?

TIA, pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/19/2018 4:57 pm

pjl
Replies: 17

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More on this saga.  It appears that the Signet only understands NMEA v1.5.  Can Exp send v1.5 sentences for the selected "transmit" data when set to the NMEA 0183 mode?

Exp seems to receive and handle some of the Signet system output (AWA, TWD, and some others) when the RS232 interface port and the USB to RS232 adapter are all set correctly.  As noted by Nick, check sums cannot be used.

Data is presumably being sent on the RS232 transmit connection, but I have yet to find a way for Signet to receive and use it.  Wrong version of NMEA data, v2.0, used by Exp to talk to Signet?  RS232 port not putting data on the Signet internal bus because of the Signet architecture?

Comments welcome!
 

Technical Q&A » Expedition running with a Signet SmartPak » 8/08/2018 1:47 pm

pjl
Replies: 17

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Thx, that's the next project to c if this old system can function in the modern world.

pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/08/2018 10:45 am

pjl
Replies: 17

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The Signet 425 (I think) receives NMEA 0183 v1.5 data from a connected GPS that displays on the system devices.  Can anyone speculate on the possibility of Expedition transmitting data (mark range and bearing, for example) on this connection and having it read by the Signet?

In other words (I think!!), what is the DB9 pin that carries the transmit signal from the computer serial cable?

TIA, pjl

Technical Q&A » Expedition running with a Signet SmartPak » 8/06/2018 12:41 pm

pjl
Replies: 17

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Great idea, but no charm.  The output we are using is from the RS232 port which was easily available.  Another port is labeled 0183, but it requires a wiring project. so will try that as the next step.

The road of progress is..... more work>

pjlhttp://cdn.boardhost.com/emoticons/sad.png

Technical Q&A » Expedition running with a Signet SmartPak » 8/05/2018 4:20 pm

pjl
Replies: 17

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I have a log file of the output from the Signet 425 that seems to contain the correct NMEA sentences to show wind data and more.  Neither strip chart nor number boxes will show the data stream.  I'm pasting in the data stream with the question of what do I do next to get Expedition to display data.  Lost here!!  TIA, pjl data follows:

5,L,N*6C

$GPBOD,248.6,T,256.2,M,GPFS0,GPFE-*47

$GPBWC,160704,4223.31,N,08253.18,W,186.1,T,193.7,M,000.8,N,GPFS0*2D

$GPVTG,360.0,T,007.7,M,000.0,N,000.0,K*4B


$IIDBT,8.3,f,,,,

$IIHDM,?,M

$IIMWD,,,207,M,9.4,N,,

$IIVPW,-0.00,N,,


$GPRMC,160705,A,4224.15,N,08253.06,W,000.0,360.0,201298,007.7,W*78

$GPRMB,A,0.75,L,GPFE-,GPFS0,4223.31,N,08253.18,W,000.8,186.1,,V*05

$GPWPL,4224.10,N,08250.45,W,GPFE-*6F

$GPWPL,4223.31,N,08253.18,W,GPFS0*6B

$GPGLL,4224.15,N,08253.06,W*77

$PGRMZ,589,f,3*1F

$PGRMM,WGS 84*06

$GPXTE,A,A,0.75,L,N*6C

$GPBOD,248.6,T,256.2,M,GPFS0,GPFE-*47


$GPBWC,160706,4223.31,N,08253.18,W,186.1,T,193.7,M,000.8,N,GPFS0*2F

$GPVTG,360.0,T,007.7,M,000.0,N,000.0,K*4B


$IIVLW,0.000,N,0.000,N

$IIVHW,,,?,M,0.00,N,,

$IIVWR,156,L,12.1,N,,,,

$IIVWT,156,L,10.4,N,,,,

$GPRMC,160707,A,4224.15,N,08253.06,W,000.0,360.0,201298,007.7,W*7A

$GPRMB,A,0.75,L,GPFE-,GPFS0,4223.31,N,08253.18,W,000.8,186.1,,V*05

$GPWPL,4224.10,N,08250.45,W,GPFE-*6F

$GPWPL,4223.31,N,08253.18,W,GPFS0*6B

$GPGLL,4224.15,N,08253.06,W*77

$PGRMZ,589,f,3*1F

$PGRMM,WGS 84*06

$GPXTE,A,A,0.75,L,N*6C

$GPBOD,248.6,T,256.2,M,GPFS0,GPFE-*47

$GPBWC,160708,4223.31,N,08253.18,W,186.1,T,193.7,M,000.8,N,GPFS0*21

$GPVTG,360.0,T,007.7,M,000.0,N,000.0,K*4B


$IIDBT,8.5,f,,,,

$IIHDM,?,M

$IIMWD,,,205,M,11.7,N,,

$IIVPW,-0.00,N,,

$GPRMC,160709,A,4224.15,N,08253.06,W,000.0,360.0,201298,007.7,W*74

$GPRMB,A,0.75,L,GPFE-,GPFS0,4223.31,N,08253.18,W,000.8,186.1,,V*05

$GPWPL,4224.10,N,08250.45,W,GPFE-*6F

$GPWPL,4223.31,N,08253.18,W,GPFS0*6B

$GPGLL,4224.15,N,08253.06,W*77

$PGRMZ,589,f,3*1F

$PGRMM,WGS 84*06

$GPXTE,A,A,0.75,L,N*6C

$GPBOD,248.6,T,256.2,M,GPFS0,GPFE

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