User's Manual

Norm
a
No Fix
GPS C
h
GPS A
n
a
l
h
ipset Erro
r
n
tenna Erro
r
ST640
U
1
2
r
4
U
ser Manual
<Pos
s
1. If
some
2. GP
S
3. GP
S
<Pos
s
1. GP
S
2. GP
S
3. Un
i
s
ible Cause
>
power on,
G
minutes.
S
antenna l
a
S
antenna c
o
s
ible Cause
>
S
antenna is
S
antenna o
i
t is broken.
>
G
PS chipse
t
a
ys on weak
o
nnection is
>
disconnect
e
r socket of
G
t
is trying
t
or no GPS
s
not firm.
e
d.
G
PS antenn
a
t
o find posi
s
ignal positi
o
a
is broken.
28
tion during
o
n