Poor AM and FM reception
10-02-18, 06:51 PM
#1
Driver School Candidate
Thread Starter
Poor AM and FM reception
I am getting a lot of distortion on all AM and FM stations. Everything sounds fine when I play a CD, so I'm assuming the speakers in my stock 2008 SC are OK. The antenna extends and retracts as it should. Any suggestions before I start searching for loose wires or connectors?
10-02-18, 07:41 PM
#2
Lexus Test Driver
Could you post a short video of the problem?
could be loose antenna wires on the back of the radio or loose wires at the rear antenna.
@Coleroad @DshngDaryl what do you think?
i had to try out the new tagging feature!
could be loose antenna wires on the back of the radio or loose wires at the rear antenna.
@Coleroad @DshngDaryl what do you think?
i had to try out the new tagging feature!
10-03-18, 08:01 AM
#3
I am getting a lot of distortion on all AM and FM stations. Everything sounds fine when I play a CD, so I'm assuming the speakers in my stock 2008 SC are OK. The antenna extends and retracts as it should. Any suggestions before I start searching for loose wires or connectors?
10-03-18, 10:18 AM
#4
Pole Position
AM (Amplitude Modulation) has shorter transmitting range than FM (Frequency Modulation). Reception depends on many factors: distance, transmitting power, buildings, magnetic field interference and the antenna. I live in the area which radio reception are excellent. I don’t listen to radio so it doesn’t matter to me.
10-03-18, 10:21 AM
#5
Pole Position
I am getting a lot of distortion on all AM and FM stations. Everything sounds fine when I play a CD, so I'm assuming the speakers in my stock 2008 SC are OK. The antenna extends and retracts as it should. Any suggestions before I start searching for loose wires or connectors?
https://www.clublexus.com/forums/sc4...430-forum.html
10-03-18, 10:36 AM
#7
Lexus Champion
AM (Amplitude Modulation) has shorter transmitting range than FM (Frequency Modulation). Reception depends on many factors: distance, transmitting power, buildings, magnetic field interference and the antenna. I live in the area which radio reception are excellent. I don’t listen to radio so it doesn’t matter to me.
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10-03-18, 12:18 PM
#8
Driver School Candidate
Thread Starter
Yes and yes. It has always been like that since I got the car, and it's a recent development since I've only had the car for 1 week. Thanks for the link. I will check the antenna connectors after I read all of the relevant posts.
10-03-18, 01:03 PM
#9
Lexus Test Driver
do you see the quote button?
10-03-18, 01:08 PM
#10
Lexus Champion
Please note antenna connection is via coax cable. Make sure both (signal carrying inner conductor and outer conductor shield ) are connected well. If connection is poor that junction acts like a diode.
10-03-18, 01:14 PM
#11
Driver School Candidate
Thread Starter
Has it been like that since you got the car, or is this a new development? If it has always been like that, I would take the radio out and see if the antenna plug is attached to your radio. The sc430 has two antennas. You would think one of them would get you decent reception. I recall reading a bunch of posts about the antenna, you should do a search and see if you can find the old posts
https://www.clublexus.com/forums/sc4...430-forum.html
https://www.clublexus.com/forums/sc4...430-forum.html
10-03-18, 02:18 PM
#12
Lexus Test Driver
10-04-18, 10:26 AM
#13
Pole Position
Kinda cool @Bgw70 , but what does it do? (Other than make me feel special?)
https://www.clublexus.com/forums/sc4...gging-306.html
10-06-18, 10:51 AM
#14
Lead Lap
I agree with checking the antenna connections. Loose antenna connections could easily create noise like that. There are two of them on the back of the radio, left side as you face the front of the radio.
10-06-18, 11:56 AM
#15
Lexus Champion
If connectors are all good and power supply voltage radio unit is getting is proper, another thing to consider is front end of radio might have suffered a static damage (like from nearby lightning strike)