I plug set it up in my car, plays fine except I can here feedback noise. Kind of a high pitched noise that changes with RPM. Troubleshooting: 1. The noise is still there if I unplug the antenna with the unit on. (excludes the antenna) 2. The noise stops if I turn the unit off (excludes my amp) 3. The noise is not there if I use another source such as my iPod with the same cord into the aux input. ideas?
Your picking up electronic engine noise. Is this an older car or new car? If it's an older car it may just need servicing. Due you have electronic fuel injection? When was the last time your plug wires or your rotor and cap been replaced?
Here is a simple test when it's pitch dark out. Open your hood and start up the engine. Look for electrical sparks or blue colored electrical current near and around any spark plug wires.
Do not touch the wires or it will knock you on your ***!
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First check fo good ground on lighter socket sometimes manufacture's use whats called a floating ground which is one wire connecting every socket for a ground . This creates what is called a ground loop and can create noise. Instead of rewiring try an inline noise filter. check with your local car audio store. Hope this helps. If not write back.
That's interference from some microwave transmitter on a tower. The interfering signal is covered up by a strong satellite signal. When you lose the strong satellite signal, then the ground-based microwave signal takes over, which your receiver trys to play back. (It's an unintelligible encrypted signal)
Is there a tower with a big "drum" pointing in your antenna's general direction? Are there "stunned" (or dead) birds in your parking lot from time-to-time? Your antenna must be moved to a different part of the roof, or even relocate it to the side of the building where you have direct line-of-signal to the satellite.
I have same problem and sure connect did not help. The unit works fine otherwise except will not send a signal to my car radio. I will try removing the battery today & if this does not work I will do t paper clip reset in the battery compartment.
A high pitch sound while connected in the house is either a problem with the reciever or you are picking up interference from somewhere. However, the high pitched noise when using the unit in a car (especially through an aux. connection), is caused by the alternator of the car. This can be eliminated by connecting a filter in-line with the aux wire (much like filters are installed on the radio power line). The filter is essentially a low pass filter that filters out noise above a certain frequency. You may have to get creative and modify your aux. input cable (i.e. - splice it into the aux cable) in order for this to work, or you can just turn the volume down a bit - it should be less noticeable at lower volumes.
Some Pioneer radios allow for seperate audio controlls between FM CD and External sources like you Sat Radio. It may be that your settings are out of wack (Prob the factory setting which is crap), try that out and let me know.
I was ready to mention the car's alternator but you say the noise is there if the ignition is on or off. What type voltage adapter are you using? It sounds as if it's the culprit. If it's an inverter I could understand the noise being generated. Have you tried earthing ALL the components involved? Earthing problems can cause some mighty weird things to happen.\
Are you sure nothing else in the car is switched on? eg. another radio or something with an inbuilt oscillator. Try running the power for the adapter straight from the battery and put a noise filter in line.
Are you turning the engine off but leaving the ignition switched on? Doing this can cause a noise from the fuel pump. Oh and make sure the antenna is correctly earthed.
Apart from that, I'm stumped