Guy Olinger K2AV wrote: > stuff available) switching supply that.. > > 2) is completely noiseless at RF frequencies.
Not physically possible for a switching supply; you need to specify acceptable, non-zero levels of RF noise. > 3) has a sense lead to the 13V bus *inside* the K3 and maintains a perfect > voltage to the K3, regardless of some additional loads (like my 10W K3) Why? Surely the K3 is designed to be tolerant of battery voltage variations. > 4) has a separate connection(s) to a battery(s), which it uses as INPUT to > the switching supply and draws from automatically and seamlessly if the AC > drops. This and the following seem to be more like the requirements for a commercial use UPS (as against domestic use ones). > 8) completely RF proof and can't be queered by RF in the shack. Again, not physically possible, for any piece of electronics; you need to specify acceptable levels. -- David Woolley "we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> ______________________________________________________________ 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
