Is your sonar powered from the start battery? If so, fire it all up at home and see if the noise is on the screen when on/off the TM. If noise shows up on the screen, scratch a point on the TM housing to make contact with a 18ga wire and run that wire temporary to the negative side of the start battery. This is a good start. If you don't have 18, use whatever you have available to see if the noise clears.
Before you do the above, try tying the negative of the tm battery to the negative of the start battery since this is a speed coil TM. Easy to check. Be sure it IS the negative of the TM. If not, you will see sparkles.
Last edited by Cane Pole; 03-27-2012 at 05:17 PM.
Member BS Pro-Staff and Billbob Pro-Staff
Proud Member of Team Geezer... authorized by: billbob and "G"
Likes: 
Thanks: 
HaHa: 
Reply With Quote
