I actually read something about this noise several years ago when I first
looked into LEDs. The issue is the driver, not the LED itself.
The driver is what converts the 12/24V from your battery bank to the 3/5V
that the LED chip uses. The driver is built into the bulb in most cases.
So unless
I will add some information in support of Joe’s assertion. I have an amplified
TV antenna mounted near the top of my mast. When I have my LED anchor light
turned on I get interference with the TV picture.
Bob
Bob Boyer
s/v Rainy Days
C&C Landfall 38 (Hull # 230)
(Spending winters in the Baham
Turning off the squelch is key to finding noise with FM. I have found it
is not blanket white noise, it can be only on certain frequencies. What
you need to do is test every channel, not just 16. Yes it is a PITA.
Joe
Coquina
On 2/10/2020 8:23 PM, Bruce Whitmore via CnC-List wrote:
Hi Jeff,
That is pretty much the recommended test. Her is the US Coast Guard's
version:
https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/INV/Alerts/1318.pdf?ver=2018-08-16-091109-630
Ken H.
On Mon, 10 Feb 2020 at 21:24, Bruce Whitmore via CnC-List <
cnc-list@cnc-list.com> wrote:
> Hi Jeff,
Hi Jeff,
I read your post below with interest, and just to test my stern light (in which
I use an Amazon LED bulb) I took my handheld, turned it to 16, and literally
held the antenna up to the lens with the light on. No change in the static was
noticed, nor when I had the squelch set just right
Some LEDs produce large amounts of RFI well into the VHF spectrum. Interference
at HF frequencies is certainly an issue, but most of us aren’t on the SSB all
day and the noise is pretty obvious in SSB or AM modes. I can turn lights on
and off until it goes away.
Noise up into VHF is far more ins
