The supplies utilized were of the same 'ilk' and not a linear type such as
an Astron, etc. I never got a chance to do the battery check today but may
very well be able to do so on Monday. I am also going to take a little 10
amp supply over there as well to try it. But BROTHER are this lighting
system noisy. I will update the group as to what I find. - Mike
-----Original Message-----
From: Dale
Sent: Sunday, March 10, 2013 11:49 PM
To: Mike Ryan ; rfi@contesting.com
Subject: Re: [RFI] Cree LED Bulbs?
Mike,
When you changed out the power supplies, did you change to another power
supply identical to the original, or did you change to a known "linear"
power supply (NOT a switcher)? The battery and a linear supply should
produce quiet, identical results. If not, then the individual light/lamp
units might contain integral small switchers. That would be a real bummer.
73, Dale
WA9ENA
-----Original Message-----
From: Mike Ryan <mryan001@tampabay.rr.com>
Sent: Mar 10, 2013 3:48 PM
To: rfi@contesting.com
Subject: Re: [RFI] Cree LED Bulbs?
I have a neighbor across the street that just installed a $400+ landscaping
lighting system. These are KILLING me on HF when they turn on at night. I
even get noise on 220 and 440 FM from them. We have changed out the power
supplies..no help. I am going to try a CAR BATTERY to see what happens.
That might isolate the problem to the power supply. But if that doesn't
work, I guess I will have to try some clip of ferrite blocks. I wonder if
these are the same thing you are working with and if so, what's the fix?
The neighbor has been 'receptive' but I don't want to keep getting in his
face about it until I am on to the fix - Mike
-----Original Message-----
From: Aaron Kreider
Sent: Sunday, March 10, 2013 4:32 PM
To: rfi@contesting.com
Subject: Re: [RFI] Cree LED Bulbs?
I bought some cheap LED bulbs on ebay which range from bad RFI to
horrible RFI. So while they were cheap (maybe as low as $6), I
recommend staying away from Ebay. They also produce less light than
advertized (the 9 watt bulbs were dimmer than the 7 watt ones I got at
Lowes). The quality control was terrible.
Aaron
On 3/10/2013 4:01 PM, Eric Rosenberg wrote:
Is anyone familiar withthe LED light bulbs made by Cree (www.cree.com)
They look nice and are half the price of the competition.
They are available from Home Depot, on-line only through the end of this
month, and then in the stores.
I'm (obviously) interested in whether they generate rfi/noise!
73,
Eric W3DQ
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