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The Norfolk Broads Forum / Broads Boat Owners Q & A / Radio interference
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Posted By Discussion Topic: Radio interference

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jimfin
Aug-04-2018 @ 10:24 AM                           Permalink
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My radio is receiving interference from my domestic circuit. The radio is not wired through the domestic circuit. I get much better reception from the radio when I turn off the domestic main switch.
Any suggestions on how to sort this welcome. Replies in lay man's language please.

If you don't use your boat. Sell it.

annville
Aug-04-2018 @ 12:01 PM                           Permalink
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Hi Jim You could try a radio suppressor that they used to fit to car radios in 70s cheap and easy fix/trial.John

Stingers
Aug-05-2018 @ 12:25 AM                           Permalink
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Jim, unfortunately you don't say what type of radio you are using (analog or DAB) or the waveband (LW, MW or FM)
Common sources of radio interference on boats are:
1. Fluorescent lights
2. Inverters
3. 12V cigarette socket adapters.
I suggest you make sure that all the above items are switched off and see if it makes any difference.
Happy listening.
Andy

Keif'smate
Aug-05-2018 @ 12:33 AM                           Permalink
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Often mobile phone and device chargers will cause radio interference.

Stingers
Aug-06-2018 @ 9:28 AM                           Permalink
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Yes, that's what I ment in No. 3 of my list.
Andy

ruby
Aug-06-2018 @ 10:45 AM                           Permalink
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Not sure if it is the same as Andys number three but I had great problems with some makes of usb plug ins. Took me ages to work it out .

My other issue was the invertor interfering with medium wave.

Good luck

Graham

Stingers
Aug-06-2018 @ 1:04 PM                           Permalink
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Graham: Yes, those USB adaptors can be a terrible source of interference particularly with GPS (sat-nav) receivers. I was trying to navigate around Pool a few years ago using an app on my tablet - most of the time it wouldn't work, and then I unplugged the USB charger..! I tried about 5 or 6 different chargers until I found one that didn't cause problems, a 3-way charger by VEHO.
Andy

ruby
Aug-06-2018 @ 1:17 PM                           Permalink
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Hi Jim

The question none of us has asked Is why isn't your radio wired into your domestic supply in the first place.

I believe that Is the most usual way of doing it.

All the best


Graham

jimfin
Aug-12-2018 @ 11:23 AM                           Permalink
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Sorry about getting back to you guys a bit late.
The radio is a pioneer and has rds.
I have a USB and cigarette type charger about 3 feet from the radio. I know I get interference from this when charging but I also get it when not charging but not as bad.
Think I have the radio wired to the automatic bilge. Just find it handy when down at the boat is don't have to turn on the domestic to get the radio to work.
Would the USB port cause a problem even if not charging something!

If you don't use your boat. Sell it.

Stingers
Aug-12-2018 @ 11:54 AM                           Permalink
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Would the USB port cause a problem even if not charging something!

Yes it would but probably not as badly. So unplug it when not in use (and save a little power at the same time). You could also get an adapter which does not cause interference and then run the radio from that all the time.

If you've not got anything else switched on and consuming power, then you might as well power it from the domestic battery supply.

Andy

This message was edited by Stingers on Aug-12-18 @ 11:56 AM

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