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Questions & Answers About Direction Readings
Question: What causes incorrect direction readings?
Answer:
Incorrect bidirectional calibration. Perform bidirectional calibration.
Remember that bidirectional calibration is required whenever batteries
are replaced.
Nearby source of strong magnetism, such as a household appliance, a
large steel bridge, a steel beam, overhead wires, etc., or an attempt to
perform direction measurement on a train, boat, etc. Move away from
large metal objects and try again. Note that digital compass operation
cannot be performed inside a train, boat, etc.
Question: What causes different direction readings to produce
different results at the same location?
Answer:
Magnetism generated by nearby high-tension wires are
interfering with detection of terrestrial magnetism. Move away
from the high-tension wires and try again.
Question: What does it mean when
direction value?
Answer:
This is the abnormal magnetic field indicator. It means that strong
magnetism is being generated nearby. Move away from the
source of strong magnetism and try again.
Question: Why am I having problems taking direction readings indoors?
Answer:
A TV, personal computer, speakers, or some other object is
interfering with terrestrial magnetism readings. Move away from
the object causing the interference or take the direction reading
outdoors. Indoor taking direction readings are particularly difficult
inside ferro-concrete structures. Remember that you will not be
able to take direction readings inside of trains, airplanes, etc.
Question: What do the numbers on the watch mean?
Answer: The face of this watch is marked with
values that increase in a counterclockwise
direction. These values represent degrees.
When you take a direction reading, you can
use these values to find out how many degrees
P
C
the 12 o'clock position of this watch differs from
magnetic north.
For example, when the Magnetic North pointer
is pointing at "90" on the watch's face, it means
that the 12 o'clock position is 90 degrees from
magnetic north (which means that 12 o'clock
is pointing due east).
Month
1
2
3
Unit
C
F
C
F
C
F
City Code
WLG
16
61
17
62
15
60
NOU
78
78
25
78
26
26
SYD
23
73
23
73
21
71
ADL
22
71
22
71
20
68
TYO
5
41
6
42
9
47
HKG
16
60
16
61
19
65
80
83
85
BKK
27
28
29
RGN
25
77
26
79
29
84
DAC
18
65
22
71
26
79
DEL
14
58
17
62
22
72
KHI
18
65
21
69
25
76
29
31
44
KBL
–2
0
7
MRU
26
79
26
79
26
78
38
42
50
THR
3
6
10
JED
23
73
23
74
26
78
JRS
8
47
9
49
12
53
57
60
64
CAI
14
15
18
PAR
4
38
4
40
7
44
4
39
4
39
6
42
LON
RIO
26
79
27
80
26
79
CCS
76
25
76
25
77
24
NYC
0
32
1
33
5
42
CHI
–6
21
–3
26
3
37
39
DEN
–1
30
1
33
4
LAX
14
57
15
59
15
59
15
19
26
ANC
–10
–7
–4
HNL
23
73
23
73
24
74
---
appears in place of a
WORLD CLIMATE TABLE
4
5
6
7
C
F
C
F
C
F
C
F
13
56
11
52
10
49
9
47
24
75
22
72
21
69
67
20
19
66
16
60
13
56
12
54
17
62
14
57
12
53
11
52
57
65
71
14
19
22
25
77
22
72
26
79
28
82
29
84
87
30
86
29
85
84
31
29
30
86
29
85
27
81
27
80
28
83
29
83
29
83
29
83
92
29
84
32
90
34
31
88
28
83
31
87
31
88
30
86
56
64
23
73
77
13
18
25
25
77
23
74
22
71
21
70
61
72
81
16
22
27
30
86
87
28
82
29
85
31
32
90
16
60
19
67
22
71
23
73
71
77
82
22
25
28
28
82
10
49
13
56
16
61
18
65
8
46
11
52
14
58
17
62
25
76
23
73
22
71
21
70
26
78
27
80
27
80
27
80
11
51
17
62
22
71
25
76
9
49
16
60
21
70
24
74
48
57
67
23
9
14
19
73
16
62
18
65
20
68
23
73
2
36
8
47
13
55
15
58
24
76
25
78
26
79
27
81
City Code
City
– – –
HNL
HONOLULU
ANC
ANCHORAGE
LAX
LOS ANGELES
DEN
DENVER
CHI
CHICAGO
NYC
NEW YORK
CCS
CARACAS
RIO
RIO DE JANEIRO
– – –
– – –
GMT
LON
LONDON
PAR
PARIS
CAI
CAIRO
JRS
JERUSALEM
JED
JEDDAH
THR
TEHRAN
MRU
MAURITIUS
KBL
KABUL
KHI
KARACHI
DEL
DELHI
DAC
DHAKA
RGN
YANGON
BKK
BANGKOK
HKG
HONG KONG
TYO
TOKYO
ADL
ADELAIDE
SYD
SYDNEY
NOU
NOUMEA
WLG
WELLINGTON
* Based on data as of June 1998.
8
9
10
11
C
F
C
F
C
F
C
F
9
48
10
50
12
53
13
56
67
69
22
72
23
74
20
21
13
56
16
60
18
64
20
67
12
53
13
56
16
60
18
65
55
27
81
23
74
18
64
13
28
83
28
82
25
77
21
71
84
83
83
81
29
28
28
27
27
81
27
81
28
82
27
81
29
84
29
84
28
82
24
76
30
85
29
85
26
79
21
69
29
84
29
84
28
82
24
75
76
68
57
44
24
20
14
7
21
69
21
70
22
72
24
75
84
77
65
53
29
25
19
11
32
89
31
87
29
84
27
81
23
74
22
71
20
67
15
59
28
82
27
80
24
75
19
67
18
64
15
60
11
53
7
44
11
7
16
61
14
57
51
44
22
71
22
72
23
73
24
75
27
28
82
27
81
27
80
81
24
75
20
68
14
57
9
47
23
73
19
65
12
53
5
41
4
22
71
17
62
11
51
39
24
75
23
73
21
69
17
62
13
9
1
–6
21
56
48
35
28
82
27
81
27
80
25
77
CITY CODE TABLE
GMT
Other major cities in same time zone
Differential
–11
PAGO PAGO
–10
PAPEETE
–09
NOME
–08
SAN FRANCISCO, LAS VEGAS,
VANCOUVER, SEATTLE, DAWSON CITY
–07
EL PASO, EDMONTON
–06
HOUSTON, DALLAS/FORT WORTH, NEW
ORLEANS, MEXICO CITY, WINNIPEG
–05
MONTREAL, DETROIT, MIAMI, BOSTON,
PANAMA CITY, HAVANA, LIMA, BOGOTA
–04
LA PAZ, SANTIAGO, PORT OF SPAIN
–03
SAO PAULO, BUENOS AIRES, BRASILIA,
MONTEVIDEO
–02
–01
PRAIA
+00
DUBLIN, LISBON, CASABLANCA,
DAKAR, ABIDJAN
+01
MILAN, ROME, MADRID, AMSTERDAM,
ALGIERS, HAMBURG, FRANKFURT,
VIENNA, STOCKHOLM, BERLIN
+02
ATHENS, HELSINKI, ISTANBUL, BEIRUT,
DAMASCUS, CAPE TOWN
+03
KUWAIT, RIYADH, ADEN, ADDIS ABABA,
NAIROBI
+3.5
SHIRAZ
+04
DUBAI, ABU DHABI, MUSCAT
+4.5
+05
+5.5
MUMBAI, CALCUTTA
+06
COLOMBO
+6.5
+07
JAKARTA, PHNOM PENH, HANOI,
VIENTIANE
+08
SINGAPORE, KUALA LUMPUR, BEIJING,
TAIPEI, MANILA, PERTH, ULAANBAATAR
+09
SEOUL, PYONGYANG
+9.5
DARWIN
+10
MELBOURNE, GUAM, RABAUL
+11
PORT VILA
+12
CHRISTCHURCH, NADI, NAURU ISLAND
12
C
F
15
59
25
76
22
71
20
68
46
8
18
64
26
79
25
76
20
68
16
60
20
67
34
1
25
77
42
6
25
77
10
50
15
59
4
40
5
40
25
78
25
78
3
37
–2
28
–1
31
14
57
–9
16
23
74
1868-6
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