[TowerTalk] RF int makeup mirror

[David Gilbert]

Yes ... they are basically a transmitter and the interfering RF is 
likely radiated, rather than solely conductive.  Not much he can do 
other than turn the bedroom/bathroom into a Faraday cage.   Or turn the 
ham shack into a Faraday cage, but even that wouldn't help if his 
antennas are close enough to pick up the signal.

For the mirror to be messing up multiple bands the oscillator must be 
generating something akin to a square wave.  If it were possible to 
access the circuitry maybe trying to filter it to something closer to a 
sine wave would cut down on the harmonics.

Dave   AB7E



On 3/7/2018 10:17 AM, Jim Miller wrote:
> Most touch sensitive things have an oscillator inside that upon touching
> causes a shift.
>
> It is naturally a transmitter by design.
>
> Your choice...
>
> jim ab3cv
>
> On Wed, Mar 7, 2018 at 11:37 AM, Paul Staupe <staupe at gmail.com> wrote:
>
>> My wife has a capacitve touch makeup mirror that she likes and uses every
>> morning.
>>
>> Unfortunately no matter what I've done, such as installing multiple
>> clamp-on ferrites, swapping power strips and putting ferrites on my own
>> coax down leads, the mirror will light up on multiple bands when I'm
>> calling DX  and therefore become an issue.
>>
>> Has anyone successfully dealt with this?  Replacing the mirror is not an
>> option.....
>>
>> Best regards,
>>
>> Paul W0AD
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