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LF: Touch switched lamp influenced by lf/mf transmission

To: [email protected]
Subject: LF: Touch switched lamp influenced by lf/mf transmission
From: christoph <[email protected]>
Date: Thu, 10 Mar 2016 16:10:30 +0100
Reply-to: [email protected]
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Dear all,

my neighbour uses a very expensive lovely designer lamp switched by a four step touch switch. Unfortunately that switch follows keying of my mf transmitter. Is there somebody having experience with that kind of malfunction?

 

The distance to the antenna feeding point is approximately 16m (ANT voltage app. 2.5kV). I tested a chain of eight common mode chokes in series to the affected lamp (mains separation of more than 100kOhms at the desired frequency). That showed improvement in sensitivity but the switch did not work anymore during transmission. The most effective solution is replacing the touch switch by a normal dimmer.

 

Are there better ideas to keep in use the original touch switch?

 

73, Chris

dl7saq

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