29
30
C
HOOSING
D
ECLINATION
A
NGLES
:
1) The Outback must be in Declination mode to choose a declination angle.
2) Press ADVANCE to step from one stored declination angle to the next until
you see the one you want to use, and then press ENTER. The Outback now
uses that chosen declination when referenced to true north.
3) The chosen declination angle does not flash when in the display word. Any
angle, which is not the chosen declination angle, flashes when in the display
word.
4) If ENTER is not pressed while viewing a declination angle other than the
chosen one, the Outback uses the angle which was previously chosen.
(Example: If the declination angle is currently 12¡E and you scroll through
the declination angles by pressing ADVANCE, and ENTER is not pressed
while viewing another angle, the Outback continues to use 12¡E as the
declination angle)
Declination angles of the U.S. For local declination, download the magnetic field calculation
software free from www.interpex.com/magfield.htm, or contact the Brunton company at 307 856 6559.
N
F
IGURE
7
D
ECLINATION
M
ODE
O
PTION
The Outback must be in Declination to use any of the features in this section.
F
EATURES
To use true north as the heading reference, a magnetic declination angle must be stored and
chosen. The Outback can store up to 10 different declination angles, d0 - d9. Magnetic
declination is the difference between true and magnetic north. It is measured in degrees to the
East or West of magnetic north. Declination angles vary throughout the world. The default
declination angle is 10
0
West. See Figure 7 on next page to locate the declination angle for
your area in the U.S..
S
TORING DECLINATION ANGLES
1) The Outback must be in Declination to store declination angles.
2) Press ADVANCE to step from one stored declination angle to the next until
the one you want program is displayed.
3) Hold MENU until
PROGRAM
flashes to enter programming mode. The first
digit of the declination angle will flash. (Example: ÒdO 00
0
EÓ if no
declination is stored or ÒdO 10
0
EÓ if an angle has already been programmed)
4) Press ADVANCE to change the value of the flashing digit, and when the
correct digit is displayed, press ENTER. (Example: 1 for the first digit of 12¡E )
5) The next digit will flash. Repeat step 3 to set the second digit.
6) Then the display word flashes the letter E for East. For an angle which is to
the East of true north, such as 12¡E, press ENTER while ÒEÓ is flashing.
7) For an angle which is to the West of true north, such as 5¡W, press ADVANCE
and W flashes. (Example: d0 5¡W) Press ENTER to select West.
8) After selecting East or West, the Outback returns to operating mode.
To store another declination angle, repeat steps 1 through 7.
NOTE: Even though declination angles have been stored, a declination angle must be chosen to use true north
as the heading reference. See ÒChoosing a Declination AngleÓon page 30.
BRUNTON MAN. MECH. 7/97 9/29/98 9:09 AM Page 17
