Garmin 720 Owner's Manual

15

Installing the Antenna

   

 The antenna is an essential part of your VHF

720 and the unit should never be operated
without the antenna installed, as this may result
in damage to the unit. The antenna receives
signals best when held upright and is less effective
when positioned horizontally.

To install the antenna:

1. Carefully align the bottom of the antenna with the

threaded connector on the top of the VHF 720, and

screw it on the  until snug against the seating

surface. (Figure 1)

Installing the Battery Pack

      The VHF 720 requires six AA alkaline cell
batteries and will provide approximately 19 hours
of operating time under normal use. Rechargeable
alkaline, NiCad batteries or the optional GARMIN
NiCad Battery Pack may also be used. The battery
level indicator at the lower left corner of the unit
LCD display gives indication of battery capacity
in increments of 25%. If NiCad rechargeable
batteries are used in the battery tray the battery
gauge measurement will not accurately indicate
battery capacity. However, the optional NiCad
Battery Pack will be accurately indicated.

To install the batteries:

1. Lift up the D-Ring on the bottom of the unit and

unscrew it to remove the battery tray. A coin may

also be used to turn the screw. (Figure 2) Slide the

Battery Tray from the bottom of the VHF 720.

2. Observe the label on the tray and the molded-in

symbols to determine proper battery terminal

orientation.

3. Insert six AA alkaline cells into the battery tray.

Slide the retention strap over the center of the

batteries to keep them in place. (Figure 2)