See W8FGU near bottom of Elecraft website front page for a nice case for the Elecraft mini-module DL.
73 Ken - K0PP On Dec 27, 2016 14:24, "Bill Johnson" <k9...@live.com> wrote: Easiest solution, buy the Elecraft DL1 20 watt dummy load kit. The guess work is removed. And it is only $25.95 for the kit. Fun to build simple to use. Even has an RF detector built on. 73, Bill K9YEQ -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter Underwood Sent: Tuesday, December 27, 2016 12:42 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Dummy loads for dummies If you want a dummy load kit for about as much as you would pay for the box, I highly recommend the Oak Hills Research RFL-100 kit for $40. http://www.ohr.com/rfl100.htm <http://www.ohr.com/rfl100.htm> I used their “BNC in a UHF connector hole” kit to make my dummy load more convenient in my all-BNC shack. http://www.ohr.com/parts.htm <http://www.ohr.com/parts.htm> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 27, 2016, at 9:41 AM, Mel Farrer via Elecraft < elecraft@mailman.qth.net> wrote: > > Yes, and you should test the dummy load at the highest frequency you will be using it. Even leaded non-inductive resistors will have a reactive component at higher frequencies. > Frankly, I usually test them above the max frequency I intend to use it to not have any concern about error. > > Mel, K6KBE > > > From: Ryan Noguchi via Elecraft <elecraft@mailman.qth.net> > To: Paul C <paul...@sbcglobal.net>; "elecraft@mailman.qth.net" > <elecraft@mailman.qth.net> > Sent: Tuesday, December 27, 2016 8:16 AM > Subject: Re: [Elecraft] Dummy loads for dummies > >> I made my own dummy load last night from two 100 ohm resistors wired in parallel. They are rated for 10 watts each and look like little bricks. I measured the resistance at 51 ohms. Do you think this is close enough or should I reduce it to 50? > > > >> Paul KG5KXG > > > If your impedance is really 51 ohms, that's an SWR of 1.02. If your antenna had an SWR of 1.02, would you trim it to get to 1.00, fire up your tuner, or just start operating? > > However, some of those resistors that look like bricks are really coils (inductors) inside, which produce a higher impedance than the DC resistance. Under RF excitation, that dummy load may be well above 51 ohms impedance. > > 73, Ryan AI6DO > ______________________________________________________________ > 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 Message delivered to > farrerfo...@yahoo.com > > > ______________________________________________________________ > 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 Message delivered to > wun...@wunderwood.org ______________________________________________________________ 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 Message delivered to k9...@live.com ______________________________________________________________ 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 Message delivered to elecraftcov...@gmail.com ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
