Notices
Marine Electronics Forum

External Speaker for GPS

Old 02-21-2010, 07:42 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Sep 2007
Location:
Posts: 3
Default External Speaker for GPS

I'm working on a system with a Garmin 5215 and HD radar on the boat. The owner wants to put an external speaker in the system so he can hear the alarms better. Its a 39 foot boat. I'm interested in what others use in this situation. Is there a good alarm or speaker with a volume adjustment that would do well in this application?
Capt-John is offline  
Old 02-21-2010, 08:55 AM
  #2  
Senior Member
 
Join Date: Apr 2007
Location: Highlands, NJ
Posts: 1,351
Default

page 18 of the install manual just specifies that max current is 100 mA and that you need a relay to limit it to that. can't help with a specific, but i would guess that any marine horn/alarm with those specs would do. good luck and maybe someone has a specific recommendation for you. ron
ElyseM is offline  
Old 02-22-2010, 06:04 AM
  #3  
Senior MemberCaptains Club Member
 
Join Date: Feb 2002
Location: North Charleston, SC USA
Posts: 22,073
Default

Originally Posted by ElyseM View Post
page 18 of the install manual just specifies that max current is 100 mA and that you need a relay to limit it to that. can't help with a specific, but i would guess that any marine horn/alarm with those specs would do. good luck and maybe someone has a specific recommendation for you. ron
A "horn" or speaker will not work. A 12 volt DC alarm buzzer is what is needed.

Pick a 12 volt model from these:
http://www.radioshack.com/search/ind...%20buzzer&sr=1

The Garmin circuit completes the negative side of the circuit, not the positive side as you might expect. So - connect 12 volts DC (with a fuse) to the positive connection of the buzzer and the negative connection of the buzzer to the GPS wiring. Or connect a small relay the same way and use the relay contacts to control a buzzer or buzzers, lights, etc. that draw more current than the GPS can control.
rwidman is offline  

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 On
Refbacks are Off


Thread Tools
Search this Thread