For the calibration procedure, you need the load to be a known 50 ohm resistive impedance. Using a 100W light bulb will not provide the required impedance, and will produce inaccurate results and possible damage the transceiver.
73, Matt VK2RQ > On 26 Mar 2015, at 5:25 am, Bob Gibson via Elecraft > <[email protected]> wrote: > > HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD! 73s Bob > W5RG > > ----- Forwarded Message ----- > From: Warren Merkel <[email protected]> > To: [email protected] > Sent: Wednesday, March 25, 2015 1:17 PM > Subject: Re: [Elecraft] Don't have a 50W dummy load > > That kit from OHR looks nicely done. I wonder if the pcb was immersed in a > gallon can of mineral oil instead of the included case, how much more power > could it withstand then? 5x-10x maybe? I could use the enclosure for > something else. Otherwise I'd get a full paint can kit off ebay for about the > same $. > > Warren KD4Z > >> On March 24, 2015 5:39:04 PM EDT, Brian <[email protected]> wrote: >> Excellent advice Don. I bought a 100w dummy load kit from OHR. It's >> called the RFL-100 and it's about $40, comes in a very nice cabinet, >> and >> takes less than an hour to build. It has come in handy more times than >> >> I can count. >> >> http://www.ohr.com/rfl100.htm >> >> Oak Hills has some good goods. >> >> 73 de KB9BVN >> Brian Murrey > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
