The Mic.is not really the tool to use to measure noise from a transmission, especially if it's a whine or similar high pitched noise. The Mic is going to pick up all sorts of noise that will drown out your noise (the mic will not give you an audible record of the noise). The NVH kit is only going to...

It;s not that there should be and isn't. The Radio just isn't on the bus, it doesn't have that functionality.

Hi, Has anyone ever tried measuring a Car Radio Antenna Signal before? I have a car with a complaint of poor radio reception on AM. Another Dealer and Ourselves have looked at this car multiple times and the process the Radio, the Antenna base and the Antenna Amplifier Module have all been replaced....

Look forward to giving a try.
Greatly appreciate your help as always. Cheers.

A decent ELM327 interface from eBay will do the trick and they're pretty cheap. One with a USB Lead is probably the best option. I've done it with my Bluetooth one, but it was a bit unpredictable as to whether The Pico Software picked it up.

Google "Volkswagen Noise, Vibration and Harshness Technical Service Training" there's a pdf kicking around of this study program that is pretty good for beginners. Goes into all the basics about frequency, 1st and 2nd. order vibrations etc. You could also have a look at http://alflash.com.ua/avtovid...

For the time being, neither I guess. I would hang on for the clip on mics. What I'm hoping the clip on mics will allow me to do is...get a quantitative measurement of squeaks, creaks and knocks , so i can triangulate to pin point the source of a noise. I'm not sure I'll be able to do that with the c...

Drives me a bit nuts not knowing what's going on, but I guess it's going to be one of those ones where you just have to be satisfied knowing you fixed the issue.

I replaced the Engine Control Module and hasn't missed a beat since. I suspected the ECU before I loaded the post, as there was no signal from the ECU at times. But I'd never seen anything like the big negative voltage spike before and didn't know how that would come about.

This is sort of why I was asking. I've experimented with Piezo Transducer Mic's from a chassis ear kit we had and also bought some Transducers myself and made my own Mic's and I found it was difficult to get consistent results. I did a little bit of research as to whether giving each Mic. it's own A...