Noise filters

[WRWW910]

I am getting a interference from my alternator how can I correct this?.

 

[WRXP381]

4 minutes ago, WRWW910 said:

I am getting a interference from my alternator how can I correct this?.

 

How is your radio wired.  What radio are you using?  What is your antenna mount looking like?  

[WRWW910]

8 minutes ago, WRWW910 said:

I am getting a interference from my alternator how can I correct this?.

 

for a GMRS Radio.

 

[WRWW910]

Right now I am using the supplied plug in power adapter and the radio itself if a Midland 275 with the short  fat 3inch  antenna. The antenna mount is a midland hood mount

 

 

[WRYZ926]

Having the radio plugged into the accessory outlet is a sure way to get interference in most newer vehicles. Noise could be coming from the alternator or any of the computer control modules or various sensors, etc.

You could try to chase own the source and put clamp on ferrite beads on everything to eliminate the RFI. The easiest fix is to run the positive wire from the radio directly to the  battery positive post and run the negative radio wire directly to a good chassis ground. Hooking up directly to the battery and chassis ground is still not a 100% guarantee on eliminating RFI but it it is still the best option.