I installed an SPX10 and ST70 on my powerboat. The SPX10 is mounted vertically. The fluxgate compass is mounted low in the bow of the boat, facing forward, and away from any ferrous metals; and is connected to the SPX10. The SPX10 has good voltage/power from the batteries. The SPX10 is connected via SeaTalkNG spur to the SeaTalkng backbone. The ST70 is also connected via SeaTalkNG spur to the backbone. SeaTalkNG T-joints are properly terminated with end caps. The second ST70 port is properly terminated.

My boat already had an E120 with RayStar 125. The E120 is connected via SeaTalkNG spur to the SeaTalkNG backbone. The RayStar  125 is connected to the E120.


The E120 displays the proper "Autopilot STBY" icon at the top of the screen and, when setting a "Go To" waypoint" it also gives me the option to engage the autopilot. So it seems the E120 is talking with the SPX10. Note, however, in the E120, when I check for external SeaTalk devices it correctly shows the DSM and RayStar 125, but when I check for external SeaTalkNG devices it incorrectly shows NO devices (even though the Autopilot Standby icon shows on the main screen).

CALIBRATION -- Auto Lean Failing

The dockside calibration works smooth: The motor phase works great. The dive motor turns the outboard engines. The problem is with the sea trial calibration. The compass has okay deviation of 4 degrees. The GPS alignment seems to work fine. BUT, the Auto Lean zig zag test always fails. The boat says learning 1, then learning 2, upon which the boat starts a turn to starboard, then turns harder to starboard, almost circles, and then the Auto Learn test fails!!!


I've tested a few things. I'll take the boat out at 15-20 knots, and put the cursor a few miles ahead, and ise "Auto" in the E120 and the same thing happens each time. The boat slowly goes off course. The drive motor will steer the boat off course and never find the course again.

Also, when I try the same thing except use "Track > Auto" in the ST70, I get a response in the ST70 "No Data Fix"?

It seems to me that the E120 is awful slow. When I turn the boat, the screen orientation updates very slowly. Any help would be appreciated.

Views: 709

Reply to This

Replies to This Discussion

I have so rarely ever had an out of the box failure that I'm thinking you really need to start over and check EVERYTHING.  Don't assume that anything is correct. 

I've been here and done that.  Your not the only one to hit a brick wall after you've made a simple little mistake and it took you way off course.

Good luck.  :>

I concur with TJ's suggestion above.  Let us know the outcome.  Thanks again TJ for your insightful responses.

I did the compass test this past weekend. It works great. All OHM readings correct.

I checked everything again. I can't see any problems with the autopilot. Also, the +/- 10 steers the hydraulics either was manually so hydraulics seem fine.

OBSERVATION: The GPS and/or the E120 is very slow. For example, if I turn the boat from 0 to 90 degrees according to the magnetic compass, the E120 COG degrees does not "catch up" or read 90 degrees correctly for about 1 full minute after my boat has physically already achieved the completion of the turn to 90 degrees. Along the same lines, my magnetic compass, E120 COG, and ST70 compass take forever to align after a turn...I can have them all synced up (except for magnetic variation), make a turn, and then they all take minutes between them to catch up: magnetic compass in real-time, COG after a minute, and the ST70 heading sometimes seems to spin around and then after 4-5 minutes reads correct.

I've ready other comments by folks that the old E120 units are slow. Mine is a 2004 or 2005 (w fresh software), but still it seems slow. Someone else suggested using SeaTalk instead of SeaTalkNG thinking that might be the problem?

Ive done a few with your setup. I have never used Seatalk NG for connection.  I would definitely use plain seatalk.  Funny, it would have been a 5 minute install to use seatalk.  --- three wires, done.

Just use the older seatalk and I bet this will be a non-issue. 

I thought I would update anyone following this post. The autopilot is now fixed. The problem has been identified. I hired a marine electronics specialist who brought a new SPX10 computer. He installed the new SPX10 in place of mine (leaving everything else in place: fluxgate, drive motor, wiring, SeaTalkNG, etc.) and the commissioning processed worked and now so does the autopilot system. The autopilot works great!

Great to hear you are up and running, thanks for the update.  Thanks TJ once again for the good information.  Happy Boating.

Reply to Discussion




  • Add Videos
  • View All


  • Add Photos
  • View All

Latest Activity

Moderator - Raymarine, US replied to Gary Rubin's discussion NO FIX with accurate boat position; Case #6248
"Gary, Failure to use the supplied cable or a SeaTalkng Cable may well compromise the performance of the GPS sensor and will void the sensor's warranty.  It is certainly possible to splice a SeaTalkng spur cable.  As Raymarine does not…"
7 hours ago
nicolelaure updated their profile
9 hours ago
nicolelaure replied to Harry H's discussion Raymarine B744V Through Hull Transducer
"Iam experiencing the same, but I had to cut the cable,and did a very good connection between the two cable,  from the transducer to my C120, could it be because of that cut that I do not receive the speed info from my transducer which is a…"
9 hours ago
Moderator - Raymarine, US replied to Bill Kneller's discussion e125 and e97 Data Master settings impact on GPS
"You're welcome."
16 hours ago
Bill Kneller replied to Bill Kneller's discussion e125 and e97 Data Master settings impact on GPS
"Ok - Thanks.  I can live with it as is since it is only occasionally used and is powered off otherwise so it doesn't take up network bandwidth."
16 hours ago
Moderator - Raymarine, US replied to Bill Kneller's discussion e125 and e97 Data Master settings impact on GPS
"Bill, I neglected to see the SR50 previously within your diagram.  Unlike weather data from a SR150, SR6 (retired), and SR100 (retired), weather data from a SR50 is not shared among networked MFD.  Due to the large amount of communications…"
16 hours ago
Moderator - Raymarine, US replied to Hartley Gardner's discussion AIS 650 Update Failure
"TJ, Thanks for the added support."
16 hours ago
TJ replied to Hartley Gardner's discussion AIS 650 Update Failure
"I just did my update to my AIS 650 via usb and a laptop and it worked perfectly. So, not broken."
Doug Alderson replied to Doug Alderson's discussion AIS 650 (GPS aerial)
"With network wired as you previously advised, I have encountered what seems to be a conflict between the GPS senor on the AIS650 and the RS125. NOTE - the AIS and RS125 turn on when main power is turned on.  MFD's are subsequently switched…"
Bill Kneller replied to Bill Kneller's discussion e125 and e97 Data Master settings impact on GPS
"Thanks.  I purchased a short Seatalk NG bus cable with the blue connectors, cut it and installed a NMEA 2000 field installable connector on one end.  The following is the final configuration, and everything seems to work just fine. I have…"
Gary Rubin replied to Gary Rubin's discussion NO FIX with accurate boat position; Case #6248
"Can you please tell me the reason I must use the RS130 cable.   In order to rout that cable from the antenna site to the Retro backbone location, the connector will have to be cut off and reconnected, since a larger connector will not go…"
Baard Johansen replied to Baard Johansen's discussion i60 Stopped Showing Wind Speed/Direction with e125 on v15.59
"The transducer interfaces directly with the i60. I pulled all the plugs and carefully reinserted. The i60 initially shows "00" and pointer at 135 degrees, then goes to "---" and points to 0 degrees. Technician was not yet able to…"
Dennis updated their profile
Dennis posted a status
"I want to replace my Simrad AP11 control unit with a Raymarine i70 control head. Is the i70 compatible with the Simrad components?"
Hartley Gardner replied to Hartley Gardner's discussion AIS 650 Update Failure
"Hello Moderator,   I suppose my only choice is to leave my AIS650 as it is, since the update process appears to be badly broken, and I have no alternatives.  I confess I'm curious to see if you will edit this response, as you did my…"
Moderator - Raymarine, US replied to Gary Rubin's discussion NO FIX with accurate boat position; Case #6248
"Gary, Q. My question is, for this installation using only Seatalkng from the antenna to the converter, will a 3 wire cable suffice? A. No.  You must either use the cable supplied with the Raystar 130 GPS Sensor or a SeaTalkng Spur Cable to…"

© 2015   Created by Moderator - Raymarine, US.   Powered by

Badges  |  Report an Issue  |  Terms of Service