Location; Under Location Access With Deck Less Than 3/8”; Under Location Access With Deck More Than 3/8” - Humminbird NS25 Operation Manual

Location

Note: When routing the GPS receiver extension cable, ensure the correct connector end is routed
to the GPS receiver and control head.
An Existing Stern with 1" – 14 Thread
Follow these steps to stem mount the GPS receiver:
1. Determine best location, then route 20 foot cable to mounting location. Mark it and drill a ½"
hole.
2. Place stem over ½" hole and mount with screws provided with stem.
3. Place lock nut on stem, thread down at least half way.
4. Route GPS receiver cable through stem. Continue through surface.
5. Thread GPS receiver on stem. Tighten lock nut with crescent wrench to secure GPS receiver
head.
6. Connect extension cables to GPS receiver cable.
Under Location Access with Deck Less Than 3/8"
Follow these steps to deck mount the GPS receiver routing the cable down through the mounting
surface:
1. Determine the best location, then route the 20 foot cable from control head to mounting
location.
2. Mark mounting location and drill a 1" hole.
3. Insert mounting bolt through 1" hole from lower side of the mounting surface.
4. Place gasket over mounting bolt, route GPS receiver cable down through hole, then secure in
place.
5. Connect extension cable to GPS receiver cable.
Under Location Access with Deck More Than 3/8"
Follow these steps to deck mount the GPS receiver routing the cable down through a thick deck:
1. Determine the best location, then route the 20 foot cable from control head to the mounting
location.
2. Place mounting flange over mounting location and mark through holes for drilling. Center hole
and three mounting holes.
3. Remove flange and drill a ½" hole and three 9/64" holes.
(Cable Side – Fig. D)