Garmin GPSMAP 4008 Owner's Manual page 71

Setting the Standby and Transmit Times
You must enable timed transmit before you can set the standby and transmit times
To help conserve power, you can indicate the radar standby time and the transmit time to implement periodic
radar signal transmissions at set intervals.
1. From the Home screen, select Radar > Sentry > Menu > Sentry Setup.
2. Select Stdby time.
3. Enter the time interval between radar signal transmissions.
4. Select Done.
5. Select Xmit time.
6. Enter the duration of each radar signal transmission.
7. Select Done.
Enabling a Guard Zone
From the Home screen, select Radar > Sentry > Menu > Sentry Setup > enable Guard Zone.
Defining a Partial Guard Zone
You must enable a guard zone before you can define the boundaries of the zone
You can define the boundaries of a guard zone that does not completely encompass
your boat.
1. From the Home screen, select Radar > Sentry > Menu > Sentry Setup > Adjust
Guard Zone > Move Guard Zone > Corner 1.
2. Adjust the location of the guard-zone corner:
• For the GPSMAP 4000 series, use the Rocker and the on-screen arrows (
and ).
• For the GPSMAP 5000 series, touch the guard-zone corner and drag.
3. Select Corner 2 and repeat step 2 to adjust the location of the second corner of the
guard zone.
4. Select Done.
Defining a Circular Guard Zone
You must enable a guard zone before you can define the boundaries of the zone
You can define a circular guard zone that completely encompasses your boat.
1. From the Home screen, select Radar > Sentry > Menu > Sentry Setup > Adjust Guard Zone > Move
Guard Zone.
Note: The guard zone is displayed as a partial guard zone during steps 2 and 3 of this procedure.
2. Adjust the inner ring of the guard zone:
• For the GPSMAP 4000 series, use the Rocker and the on-screen arrows
( and ).
• For the GPSMAP 5000 series, touch the guard-zone corner and drag.
3. Select Corner 2 and repeat step 2 to adjust the location of the outer ring of the guard
zone.
4. Select Circle > Done.
GPSMAP 4000/5000 Series Owner's Manual
®
(page 66).
(page 67).
Corner 1
Corner 2
(page 67).
Circular
Radar
67