Continuou
s
lo
w fr
e
q
ue
nc
y
buzz
.
Mo
st
not
ice-
ab
le at ni
g
ht
on w
eak
si
g
n
a
l
st
a
tions
.
C
ont
in
uo
us
h
i
g
h
fr
equen
c
y
wh
i
ne
which
in
-
cr
e
a
se
s a
t night
.
Continu
o
u
s
his
s
or
bu
z
z
i
ng
i
nt
erfer
en
ce
w
i
th
broadcast.
Be
c
om
e
s
l
o
u
de
r
d
u
r
in
g
st
e
r
e
o.
We
a
k
ri
g
ht
ch
a
nn
e
l
respons
e
when
listenin
g
to LEFT
o
nly test
FM Stereo bro
a
dc
a
st
.
FM Automatic
Circuit
fails
t
o respond to ste
r
e
o
broadcast
.
TROUBLE SHOOTING
In initially
in
s
tallin
g
thi
s
re
c
e
iv
e
r,
impr
o
p
e
r
co
nne
c
tion
s
may
r
e
s
ul
t
in
o
n
e of
th
e f
o
llow
i
n
g
i
ndic
a
t
i
on
s
of t
r
ouble
.
T
he
i
r
po
ssibl
e
ca
us
es a
nd
c
orrectiv
e
me
a
su
r
es
a
r
e listed
below to
fa
cilitate
i
nstall
a
tion
.
Interf
e
rence
f
r
om
elect
r
i
c
al
a
pplian
c
es
or
at
·
mosph
e
rics.
TV inte
r
fe
r
enc
e
.
10
kHz
beat
interferen
c
e
from
ad
j
ac
ent
AM
st
a
tion
.
L
ig
htnin
g
inte
r
f
e
renc
e.
Inte
r
f
e
renc
e
from
fluore
s
c
e
nt
l
a
mp
s
.
AC Plu
g
Connection
.
C
alle
d
BCI
,
this
inte
r
feren
ce
resul
t
s
fro
m
ne
ig
h
b
orin
g
a
m
a
teur
st
at
ion
s.
(Also
oc
c
urs
on
FM)
Au
t
omobile
i
g
niti
o
n
noise
.
More noticeable
on
we
a
k si
g
nals
.
C
a
lled
crosstalk,
a
very
slight
response
i
s
norm
a
l.
Ere
c
tin
g
a 1
0
meter
outd
oor
ant
e
nn
a
a
n
d
s
e
cur
i
n
g
g
oo
d
g
rou
nd
c
onditi
o
ns
should
r
e
d
uce
inte
r
fe
r
en
ce
c
onsi
de
rably
.
Complete
elimin
a
ti
o
n
is di
f
fi
c
ult
.
Tu
r
n TV of
f.
(Neigh
b
or
i
ng
TV
s
et m
a
y
a
ls
o b
e c
a
us
e
.
)
Impo
ss
ible
t
o
e
limin
a
te
f
ro
m
re
c
eiv
e
r
si
de
.
Th
is
is
one
d
is
a
dv
a
nt
ag
e
of the AM bro
adca
st
sy
s
t
e
m.
Use
Hi
g
h Filter
to
c
ut
o
ff hi
g
h fr
e
quen
cy
interf
e
r
e
n
ce
.
O
cc
ur
s
wh
e
n
l
a
mps
a
re
o
n
a
n
d
ca
nnot
be
h
el
p
ed
.
Tr
y
r
e
versin
g
AC plu
g c
onn
e
ction
s.
O
cc
u
rs
only
o
n
cer
t
a
in
st
at
i
o
ns
d
u
e
to
h
ig
h volt
age
p
ow
e
r
li
ne
a
n
d ca
nnot
be h
e
lped
in m
any areas
.
Consult
int
e
rf
e
rin
g
s
ta
t
io
n
o
p
e
r
a
t
or
or
a
u
t
ho
r
i
t
i
es
c
o
nce
rn
ed
.
Ere
c
t
o
utd
oor
FM
a
nt
e
nn
a
i
f only
in
d
o
or
T
-
t
y
p
e
is
use
d
.
A 5
o
r 7
e
lem
e
nt
a
nt
e
nn
a
is n
e
ce
s
s
a
r
y
if
yo
u
a
re
lo
ca
te
d
a
t
a
c
onside
rab
l
e
d
i
s
t
a
nc
e
from
t
he
b
ro
adca
stin
g
st
at
io
n
.
Erect outdo
o
r
FM
a
nt
e
nn
a
as
f
ar a
w
a
y from
ro
ads
a
s
p
r
a
ctic
a
ble.
If le
a
k
ag
e is less th
a
n one t
e
nth
,
it is n
o
t
a
s
i
g
n
of
trouble
.
It c
a
nnot
be
reduce
d
to zero
.
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