[ARC5] externally generated noise from switching controllers.

[jcoward5452 at aol.com]

Heck,what about the cheap triac controllers for conventional lighting? I can actually tell which neigbor has turned on their dimmer by the sound of the hash on my AM broadcast radio on my bedstand.
 Jay KE6PPF






-----Original Message-----
From: Leslie Smith <vk2bcu at operamail.com>
To: Bob Macklin <macklinbob at msn.com>; Discussion of AN/ARC-5 military radio equipment. <arc5 at mailman.qth.net>
Sent: Tue, Jun 8, 2010 1:38 pm
Subject: [ARC5] externally generated noise from switching controllers.


Hello group,
 subscribe to a newsletter from NXP semiconductors.
he newsletter describes or advertises new products - devices, chips, 
pplication notes.

ere is the latest:
SL2103 - SMPS controller IC for dimmable LED lighting
This chips is a switching regulator, fed directly from the rectified mains.
I ask (we all know the answer):
hat will happen to your nice quiet RAK and RAL receivers when these noisy 
ritters are installed in every house in every suburb?
I say the noise from a switching LED controller will make a 12K8s as quiet as 
he central Australian desert at mid-day. (it's very quiet in the desert at 
id-day).
Is there nothing we can do so stop such lunacy on a city-wide scale?
Yes, this is off-topic, but it's something of interest to all, I'm certain.
Les
ormerly VK2BCU
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