Radio Interference

More info is needed ... are you the original owner of this 2007 trailer, if not perhaps some of the bulbs have been changed to LEDs. If they're all 921 incandescent bulbs then perhaps the converter is the cause, in which case turning it off and running on battery power might solve the issue. If that works then it's possible the converter is failing or there's a loose ground ... but that could be just about anywhere and very difficult to locate, though checking the connections at the converter would be the obvious place to start.

I'm not the original owner. I traded trailers last fall. Upon checking it out there was a problem when the generator was running so ultimately they installed a new converter.

Sounds like the converter is generating RF interference. :)

I would measure 12VDC voltage drop at the RADIO when you turn additional lights. You may have picked a bad place to get your 12VDC to run your AM/FM radio. Standard Automotive 12VDC lights can draw some serious DC CURRENT..

I also agree with others that the LED lights that have built-in BUCK BOOST regulator chips can cause RFI signals that may interfere with your HDTV, VHF/UHF Freq Radio reception, NOAH WX ALERT radio signals, etc...

Roy Ken

lc0338 wrote:
The radio is very near an under cabinet light and where the radio appears to be getting it's power source. I can turn that under counter light on and it does not impact the radio volume. But, if I turn on the main light switch on the other side of the trailer the volume becomes reduced. I have noticed that if I just turn on the 1 under counter light the converter does not turn on. When I turn on the main light switch the converter comes on... so I'm thinking the converter may be playing a role in the interference. The trailer is a 2007 year model. The light bulbs are have 921 printed on them. If the under counter light does not affect radio volume don't know other light bulbs would.

More info is needed ... are you the original owner of this 2007 trailer, if not perhaps some of the bulbs have been changed to LEDs. If they're all 921 incandescent bulbs then perhaps the converter is the cause, in which case turning it off and running on battery power might solve the issue. If that works then it's possible the converter is failing or there's a loose ground ... but that could be just about anywhere and very difficult to locate, though checking the connections at the converter would be the obvious place to start.

SoundGuy wrote:

lc0338 wrote:
Anyone have an idea what may be causing the reduced volume issue?

I'd bet you have LED lighting and that's what causing RFI interference with the radio. The solution is to replace them with LED bulbs that don't, just as I did. Pics are in my gallery. :)

The radio is very near an under cabinet light and where the radio appears to be getting it's power source. I can turn that under counter light on and it does not impact the radio volume. But, if I turn on the main light switch on the other side of the trailer the volume becomes reduced. I have noticed that if I just turn on the 1 under counter light the converter does not turn on. When I turn on the main light switch the converter comes on... so I'm thinking the converter may be playing a role in the interference. The trailer is a 2007 year model. The light bulbs are have 921 printed on them. If the under counter light does not affect radio volume don't know other light bulbs would.

lc0338 wrote:
Anyone have an idea what may be causing the reduced volume issue?

I'd bet you have LED lighting and that's what causing RFI interference with the radio. The solution is to replace them with LED bulbs that don't, just as I did. Pics are in my gallery. :)