Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-10-2009, 23:17   #1
Marine Service Provider
 
benjiwoodboat's Avatar

Join Date: Aug 2006
Location: Nomad (often in Maine)
Boat: Norseman 447
Posts: 220
Images: 15
Radar 'Heads Up' Off by 45

Anyone ever experience this issue? It's like the scanner is mounted 45 off angle on the my mast.... but how could that be - screw holes wouldn't allow for that... So until I sort it out, I use an EBL at 45 as my TRACK. I'm getting used to it, but would love to figure this one out.

This is a Raythen RL9 unit.
__________________

__________________
Ben Carey
One Simple Question
Morse Alpha Sail Training
benjiwoodboat is offline   Reply With Quote
Old 24-10-2009, 00:59   #2
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 4,330
Did you ever do the bearing alignment procedure??
__________________

__________________
donradcliffe is offline   Reply With Quote
Old 24-10-2009, 04:27   #3
Moderator
 
Hudson Force's Avatar

Cruisers Forum Supporter

Join Date: Nov 2008
Location: Lived aboard & cruised for 45 years,- now on a chair in my walk-in closet.
Boat: Morgan OI 413 1973 - Aythya
Posts: 7,894
Images: 1
I had to resort to reading the manual to make the adjustment aligning the radar heading with my vessel heading. It's a simple fix. 'take care and joy, Aythya crew
__________________
Hudson Force is offline   Reply With Quote
Old 24-10-2009, 11:49   #4
Registered User

Join Date: Apr 2008
Location: SF Bay
Boat: Catalina C-42
Posts: 168
The RL9 manual is here: http://www.raymarine.com/SubmittedFi.../radar/RL9.pdf

The relative bearing adjustment procedure is on page 5-12. I have an ST50 radar (same as RL9) & had to do this procedure when I bought boat in 2002. I don't know how the previous owner used the radar with the bearing off so far.
__________________
rodney_k is offline   Reply With Quote
Old 25-10-2009, 10:00   #5
Senior Cruiser
 
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 5,830
I used to have an Autohelm unit which was the same radar.
The bearing adjustment would revert to a similar angle if it hadn't been used for awhile.
There's a small disc shaped battery inside the unit which was weak. It was supposed to keep the volatile memory alive during non use.

Steve B.
__________________
senormechanico is offline   Reply With Quote
Old 25-10-2009, 14:31   #6
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
If linked with the compass sensor then once it is gone it may set everything off (also your heading on the chart plotter by a set value. Seen this too many times. Old Ray issue.

b.
__________________
barnakiel is offline   Reply With Quote
Old 26-10-2009, 22:42   #7
Marine Service Provider
 
benjiwoodboat's Avatar

Join Date: Aug 2006
Location: Nomad (often in Maine)
Boat: Norseman 447
Posts: 220
Images: 15
thanks all for the ideas and info. I checked out the manual again and tried the bearing adjustment, but it didnt do anything for me. And from what I understood reading it a few times, that was to get the EBLs relative bearings aligned properly, not the ships heading. My RL9 is not connected to any other electronics, or compasses, so that shouldn't be an issue.

In my manual it says that the SHIPS HEADING alignement is to be performed by a Raytheon technician... ho hum...
__________________
Ben Carey
One Simple Question
Morse Alpha Sail Training
benjiwoodboat is offline   Reply With Quote
Old 26-10-2009, 22:57   #8
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
You don't need to hire a professional to do this. They are just covering their you know whats. The instructions for installing my Furuno unit described how the user can do this for himself.

You may want to call their tech support number.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 18-05-2010, 16:46   #9
Marine Service Provider
 
benjiwoodboat's Avatar

Join Date: Aug 2006
Location: Nomad (often in Maine)
Boat: Norseman 447
Posts: 220
Images: 15
Yeah the manual tells you how on 5-12.
Thanks for the tid bit about the weak battery, must be the problem, becuase I have to reset often. Anyone know where that battery is and how to change it?

Thanks
__________________
Ben Carey
One Simple Question
Morse Alpha Sail Training
benjiwoodboat is offline   Reply With Quote
Old 18-05-2010, 18:53   #10
Senior Cruiser

Cruisers Forum Supporter

Join Date: Nov 2005
Location: Out there doin' it
Boat: 47' Olympic Adventure
Posts: 2,635
Battery change is described in the manual 5.2.6. I don't know this particular model but have a pretty good understanding of how radars work - the bearing alignment procedure should have worked IMO. If the battery change doesn't help, you might want to try a master reset (also described in the manual), and as a last resort you may need to open up the radome and realign the magnet and SHM switch (#6 and 21 in the blow-up diagram) - get a pro if you're not really handy.
__________________

__________________
Lodesman is online now   Reply With Quote
Reply

Tags
radar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Number of Heads sailorboy1 Monohull Sailboats 41 20-09-2009 19:51
'Track Up' or 'North Up' bstreep Navigation 43 15-06-2009 23:24
2 Heads? GDFL Construction, Maintenance & Refit 62 01-05-2009 09:39
Radar Reflector throwing off Radar? alexleclainche Deck hardware: Rigging, Sails & Hoisting 2 21-04-2008 20:21



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.