ques. for radio techs

grytvikken · Post by **grytvikken** » Tue Mar 24, 2009 9:56 pm

Hi got a quick ques regards my mothers need to recieve AM radio on her car. With the car running its almost impossible to make any sense of the AM radio but when the car is off AM is clear. Im a bit of a pumpkinhead with radios is there anything she can do....... I have a memory of ballast resistors but Im in the dark.
cheers

Mr Top Hat · Post by **Mr Top Hat** » Wed Mar 25, 2009 12:17 am

your getting some noise from your alternator

try checking all your grounds

and/or get a automotive power filter from jaycar electronics
for like $20

Rob

Matt · Post by **Matt** » Wed Mar 25, 2009 10:14 pm

Second that the filter is the best option these days... The ballist resistor can help but the filter is better.

subarooster · Post by **subarooster** » Thu Mar 26, 2009 7:07 pm

yep a noise suppressor (filter) is cheap and easy to fit. definately better option.