Put a ceramic .1 uF across the connector on the door opener where the wire to the button by the kitchen door comes from.
Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> on behalf of Robert Sands <k7vora...@gmail.com> Sent: Monday, March 11, 2019 4:32 PM To: Bob McGraw K4TAX Cc: Elecraft Discussion List Subject: Re: [Elecraft] 1500 W is a lot of power my garage door opens with only 500 watts. fun reminder about RF capture. On Mon, Mar 11, 2019, 2:20 PM Bob McGraw K4TAX <rmcg...@blomand.net> wrote: > Three things: > > (a) ARRL Handbook - contains everything you need to know and then some. > > (b) ARRL Antenna book - contains everything you need to know and then > some. > > (c) Grounding and Bonding, by Ward Silver, an ARRL Publication - > MANDATORY reading. > > And of course one must visit the contents of these books frequently > along with each manual that came with the product. RTFM > > 73 > > Bob, K4TAX > > > On 3/11/2019 3:07 PM, Al Lorona wrote: > > About two months ago I posted that amateur radio needs a tutorial, 'What > to expect when you get an amplifier'. As we see again and again here even > basic things like cables, connectors, grounding, and house wiring that work > fine at 100 W may be inadequate for 1500 W. We need guidance to study our > stations piece by piece to ensure those pieces can handle these power > levels without failing or causing problems. > > > > Al W6LX > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
