Reply
 
Thread Tools Search this Thread
 
Old 04 February 2007, 04:43   #1
Member
 
MarkM's Avatar
 
Country: Netherlands
Town: Breda
Make: Scorpion
Length: 7m +
Engine: Evinrude 250 DI
Join Date: Oct 2003
Posts: 368
Lowarance question.

For 3 years I've the Lowrance GlobalMap 7000 C with the LGC-12w GPS module (antenna). Every so now and than there is a very weak signal from the satelites. Two or three dark blue bars in the satellites page. Or two light blue bars. Sometimes there is navigation but no speed notation.
My friend with the same unit but in another part of Holland has no problems.

I know about the satellites and there positions, trees and buildings beeing in the way. I've sprayed WD40 in the antenna plugs with no solution. Who can explain and solve this problem? I would be very grateful.
__________________

__________________
MarkM is offline   Reply With Quote
Old 05 February 2007, 13:11   #2
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Any radar sets in operation when you have the problem? Mid-range radar emissions can screw up GPS reception (seems to happen more with older antennae), and high power emissions can kill the GPS antennae.

You might try cleaning the top of the module with a mild solvent. Probably won't help, though.

Other than those, I know that some of the Lowrance GPS modules were a bit sketchy in operation. They have had quite a few odd problems, including some that happen as you describe. Unfortunately, there is very little you can do with these things as far as troubleshooting goes - swapping is about the only method; so it makes it pretty tough to ID the actual prolem cause.

Good luck;

jky
__________________

__________________
jyasaki is offline   Reply With Quote
Old 05 February 2007, 16:02   #3
Member
 
MarkM's Avatar
 
Country: Netherlands
Town: Breda
Make: Scorpion
Length: 7m +
Engine: Evinrude 250 DI
Join Date: Oct 2003
Posts: 368
Thanks for your reply. I've no radar, but will try to keep the module (antenna) further away from cables, etc. See how that works out.
__________________
MarkM is offline   Reply With Quote
Old 05 February 2007, 18:27   #4
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by MarkM View Post
Thanks for your reply. I've no radar, but will try to keep the module (antenna) further away from cables, etc. See how that works out.
Doesn't necessarily have to be on your boat. Nearby radar sets may cause interference, and nearby radar ground stations are the ones reported to kill antennae (East US coast somewhere... Virginia, perhaps? Some river or bay with a Navy base.)

jky
__________________
jyasaki is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 21:24.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.