FM reception problem

  • Thread starter Thread starter William Liao
  • Start date Start date
W

William Liao

Hi guys,

The FM radio reception in my 740 quite often has a lot of static. The
problem seems to be location related, not rev related, so I know it's just a
weak reception. But at places where I get weak reception in my 740, my
cousin's S70 can still pick up the station crystal clear, and he also has
just a factory Volvo system. I have tried a few different head units (all
genuine Volvo) and the problem is still there, so I don't think the problem
is in my head unit.

Can any of you guys suggest what to do / where to check for this problem? I
was tempted to replace the entire antenna cable but is this necessary?
Antenna mast was replaced only 2 years ago.
_________________
Will
'90 Volvo 744 GLT
B230F converted to B230FB (531 Head & VX3 Cam)
 
William Liao said:
Hi guys,

The FM radio reception in my 740 quite often has a lot of static. The
problem seems to be location related, not rev related, so I know it's just a
weak reception. But at places where I get weak reception in my 740, my
cousin's S70 can still pick up the station crystal clear, and he also has
just a factory Volvo system. I have tried a few different head units (all
genuine Volvo) and the problem is still there, so I don't think the problem
is in my head unit.

Can any of you guys suggest what to do / where to check for this problem? I
was tempted to replace the entire antenna cable but is this necessary?
Antenna mast was replaced only 2 years ago.
_________________
Will
'90 Volvo 744 GLT
B230F converted to B230FB (531 Head & VX3 Cam)
Click to expand...
 
Check the antenna connection in the trunk and also the plug for the radio.
 
Check for an aerial amplifier in the line from aerial to head. There was one on
my 760 GLE which fortunately worked as it's power source had not been
compromised.

I have a 164 now and a 66 and a 480 coming this weekend for my collection. Have
you managed to get your 164 running again?

Cheers, Peter.

: Hi guys,
:
: The FM radio reception in my 740 quite often has a lot of static. The
: problem seems to be location related, not rev related, so I know it's just a
: weak reception. But at places where I get weak reception in my 740, my
: cousin's S70 can still pick up the station crystal clear, and he also has
: just a factory Volvo system. I have tried a few different head units (all
: genuine Volvo) and the problem is still there, so I don't think the problem
: is in my head unit.
:
: Can any of you guys suggest what to do / where to check for this problem? I
: was tempted to replace the entire antenna cable but is this necessary?
: Antenna mast was replaced only 2 years ago.
: _________________
: Will
: '90 Volvo 744 GLT
: B230F converted to B230FB (531 Head & VX3 Cam)
:
:
 
Try grounding the cable shield, where the antenna cable
starts on the body side of the vehicle...worked on
my 745.....1990.....

hope helps....steve
 
William said:
Hi guys,

The FM radio reception in my 740 quite often has a lot of static. The
problem seems to be location related, not rev related, so I know it's just a
weak reception. But at places where I get weak reception in my 740, my
cousin's S70 can still pick up the station crystal clear, and he also has
just a factory Volvo system. I have tried a few different head units (all
genuine Volvo) and the problem is still there, so I don't think the problem
is in my head unit.

Can any of you guys suggest what to do / where to check for this problem? I
was tempted to replace the entire antenna cable but is this necessary?
Antenna mast was replaced only 2 years ago.
_________________
Will
'90 Volvo 744 GLT
B230F converted to B230FB (531 Head & VX3 Cam)
Click to expand...

First by a cheap antenna and plug it directly into the radio, and see if
that helps. If it's better, try it at the rear, plugged into the
antenna lead. If it's good plugged in at the rear, measure the
resistance from the tip of the extended existing antenna to the tip of
the short lead that comes from it. (You can't check the lead in the car
this way, there's capacitance built into it.) Often the connection and
the base of the antenna, through the aluminum tube to that short lead
can be bad due to corrosion.

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
do you have resister spark plugs in, if not they cut out much of the static
which is a pain?
 
You must log in or register to reply here.
Back
Top