Re: [IRCA] RFI on the BCB

[Russ Edmunds <wb2bjh@xxxxxxxxx>]

Some opener companies have different sensor units which greatly reduce RFI
but you have to go directly to the mfr and ask.
I did that many years ago and have had none of that since.

Russ Edmunds

<wb2bjh@xxxxxxxxx>




On Fri, Sep 14, 2018 at 1:00 PM R. Colin Newell <coffeecanuck@xxxxxxxxx>
wrote:

> RF chokes!
>
> I replaced my garage door opener with a new unit - whisper quiet.
>
> Colin Newell - Victoria - B.C. CANADA -
>
> > On Sep 14, 2018, at 9:57 AM, Stephen Hawkins <ng0g@xxxxxxxxx> wrote:
> >
> > Patrick et al,
> >
> > I have found the worst RFI generator I have heard in quite a while.   We
> had a nice garage built and the contractor installed two brand new
> Chamberlain garage door openers.  The RFI comes from a cheap, dirty
> switching supply that uses the leads going to the sensors at the bottom of
> the doors and to the switch by the people door as antenna.  It ruins the
> BCB and 160M.   I tried to post a photo of the screen on my Flexradio
> showing the interference but it doesn't get through.  It is bad despite
> replacing all the wires with cat5 and winding an extra 9 feet of twisted
> pair striped out of the cat 5 through a Mixture 31 toroid.  I have to power
> them off at night.
> >
> > I'll email photos to anyone who wants.
> >
> > Steve NG0G
> >
> > --
> > Stephen Hawkins NG0G
> > ng0g@xxxxxxxx
> > 73 49 111 01001001
> >
> >
> >
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