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View AAANDRRREW's profile

Smart Electritican LED shop light radio interference...

by AAANDRRREW
posted 01-03-2017 03:53 PM


13 replies so far

View johnstoneb's profile

johnstoneb

2914 posts in 2171 days


#1 posted 01-03-2017 04:27 PM

You have external problems ie. signal strength from the radio station. One of the reasons for having FM over AM is the almost none existent interference from external sources. How far are you from your station. How many hills and mountains between the transmitter and your receiver? FM is line of sight and hills and mountains really degrade signal strength.

-- Bruce, Boise, ID

View bold1's profile

bold1

293 posts in 1846 days


#2 posted 01-03-2017 04:29 PM

I had problems with LEDs cutting signal as well. I ran a test lead outside the building and clipped the lead to my antenna. Solved my problem.

View AAANDRRREW's profile

AAANDRRREW

210 posts in 1171 days


#3 posted 01-03-2017 04:32 PM

I live in central WI and the radio tower is maybe 10 mi as the crow flies – its also on top of Rib Mountain, which is something like 800’ above my elevation. My area is relatively flat, with the except of the “mountain”.

I also have a much higher quality receiver in my basement that if the dimable LEDS are OFF or low light is fine, turn them up and the radio takes a crap as well.

View JoeinGa's profile

JoeinGa

7736 posts in 2005 days


#4 posted 01-03-2017 07:28 PM

You say ”All I did was MOVE the lead to the light 6” and the radio lost almost all signal ”

So move the wire back and see what happens. < sarcasm font off >

The interference I get in my radio is ONLY from the cordless tools battery chargers. I’ve moved both the chargers AND the radio several times to no avail. And I have noticed that if the batteries are plugged into the charger but NOT in “charge mode” there is no interference. Only when they go in charge mode.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View AAANDRRREW's profile

AAANDRRREW

210 posts in 1171 days


#5 posted 01-03-2017 08:11 PM

Joe – I agree with you on the battery charger part.

As for moving the light lead – I did put it back so I could rock out, but, the wire is hanging in a less than desirable location and I was trying to make the shop look halfway decent haha.

View OSB's profile

OSB

147 posts in 524 days


#6 posted 01-03-2017 08:18 PM

I bet the interference is from the LED switch mode power supply putting noise on your AC line, not transmitting RF waves through the air.

If you can put the radio on another circuit it would improve if that is it.

I’m sure an electrical engineer or good electrician could add some inductors or capacitors in front of the LEDs to filter out that noise but the best way to do it is buy a product with quality filtering built in.

When you wonder why some LED lights are so much more expensive than the bargain brand on sale, that may be the reason because leaving out filter parts is one effective way for the manufacturer to reduce cost.

I’m currently frustrated by my USB C charger that makes my clock radio squeal when I charge my phone. I’m not sure how I will fix that.

View AAANDRRREW's profile

AAANDRRREW

210 posts in 1171 days


#7 posted 01-03-2017 08:46 PM

OSB – i guess you won’t oversleep for work!

and yes, I agree with you. I had no experience with LED lights before I bought my new home. Reason was that the savings vs cost of the bulb just wasn’t attractive for me. The new (to me) house was outfitted top to bottom with mid-level brand LEDS (they are TCP, I think available at home depot). All the regular LED bulbs are fine, but the previous owner finished the family room in the basement and has literally like 18 LED can lights (its like broadway stage bright when they are on) and those are dimmeable – and those are the ones that create a problem. And yes, the Smart Electrician brand light at Menards for a fraction of the cost of a high end one likely has a reason for the cost.

View Mark Shymanski's profile

Mark Shymanski

5621 posts in 3711 days


#8 posted 01-23-2017 04:58 AM

I replace the burnt out incandescent light in my garage door opener with an LED bulb and the remote would not open the door, swapped the bulb for an incandescent light and ‘hey presto’ the door opens again. That is the only time I’ve been disappointed with this new technology.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View TopamaxSurvivor's profile

TopamaxSurvivor

18271 posts in 3674 days


#9 posted 01-23-2017 07:35 AM

Most modern electronics do funny thing to the AC sine waves. Higher quality will have power supplies that are intended to address these issues. Does it say anywhere the lights meet FCC regulations?

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Mark Shymanski's profile

Mark Shymanski

5621 posts in 3711 days


#10 posted 01-24-2017 05:20 AM

I don’t know, and I suspect that the FCC doesn’t apply up here in the Great Whit North :-) Of course the physics are the same so if the light would meet FCC standards it should still work here, but I didn’t really look at the ratings on the lamp although I guess I could check out similar bulbs at the store where I bought them…if I can remember where that was.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View TopamaxSurvivor's profile

TopamaxSurvivor

18271 posts in 3674 days


#11 posted 01-24-2017 07:26 AM

Canada probably has an equivalent. Canadian Standards and UL are universally accepted by both.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View AAANDRRREW's profile

AAANDRRREW

210 posts in 1171 days


#12 posted 01-24-2017 01:14 PM

I have pretty much just given up with this light – I can make things better by adjusting my antennae some or plugging the light into the outlet and the stereo into a surge protector on the other plug in the outlet…but it comes and goes and some days its better than others. It’s really frustrating because I like the light alot but it makes the radio unusable at times…

I’m going to be running another lead from my breaker box to the garage for some additional outlets and I hope that having the stereo on this line will help.

I talked to a friend whos very up to date with AV stuff and he recommended a power conditioner, which is like $60+ and not guaranteed to improve anything so I passed on that as well.

View TopamaxSurvivor's profile

TopamaxSurvivor

18271 posts in 3674 days


#13 posted 01-24-2017 10:18 PM

Make sure you new circuit is on the opposite phase.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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