I am not the world's foremost authority, but I will give it a shot. * Whose radio am I protecting, mine or the other guy's? Your radio
* What am I protecting it from? Humongous big signals like occur when a Multi-Multi contest station has a line up of six stations, all running 1.5 KW along with a $100K or more antenna farm, all transmitting at once and enough RF to make the hair on your arms tingle. Maybe even a Field Day Site where some are running other brand radios. If you were in this category, chances are you would already know the answer. * Why doesn't the radio take care of this problem itself? Mostly, it does not need to. Only those who really need it will want to pay the bucks and the weight and size penalties for the extra 80 or 90 dB of isolation. If you live next door to the Multi-Multi station above the best strategy is to unplug your radio and go join them for the contest. If you don't have the operating skills volunteer as a waiter or assistant something or other. They are probably nice guys and will welcome the help. If not they will welcome your cooperation. * What is transmitted phase noise and what do I do about it? Basically it is interference. I can't adequately explain it, but if you have a bought a K3 or a K2 you have done what you can. * Where does the K3 stack up in the world of transmitted phase noise in amateur radio equipment? (I believe the answer is that the K3 is very quiet and that I am more apt to be to victim, rather than the source, of this problem] I believe you are correct! * Other relevant stuff I don't know about Now there is a subject. Maybe Wayne and Eric can write a book someday when they finish designing and building good radios. I would write the book myself, but I am not even sure what is relevant, much less what you don't know about. Willis 'Cookie' Cooke K5EWJ ________________________________ From: gary bartlett <[email protected]> To: [email protected] Sent: Thu, April 28, 2011 11:23:52 AM Subject: Re: [Elecraft] OT: ICE still functioning? In the interest of reducing interference from/to our K2/sK3s and the equipment of our friends at multi-transmitter events, I'd like to see the topic taken one step further: a short explanation of why the need for band pass filters with Elecraft equipment exists in the first place. * Whose radio am I protecting, mine or the other guy's? * What am I protecting it from? * Why doesn't the radio take care of this problem itself? * What is transmitted phase noise and what do I do about it? * Where does the K3 stack up in the world of transmitted phase noise in amateur radio equipment? (I believe the answer is that the K3 is very quiet and that I am more apt to be to victim, rather than the source, of this problem] * Other relevant stuff I don't know about Can anyone point to a source of basic operational application of band pass filters explained at this level and with the emphasis removed about the insides of the filters themselves? 73, Gary, VE1RGB -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron D'Eau Claire Sent: April 28, 2011 12:40 PM To: [email protected]; 'Rick Stealey' Subject: Re: [Elecraft] OT: ICE still functioning? Rick, that has never been true in practice in the 10+ years I've participated in this reflector, nor can I find any mention of that in the official list guidelines at www.elecraft.com IMX, anything related to Ham radio that someone owning an Elecraft rig might be interested in is welcome for discussion here. 73, Ron AC7AC -----Original Message----- With all due respect guys........... If it is OT it BY DEFINITION doesn't belong on this reflector, no matter how interesting, no matter that everyone in the ham world is interested in the fascinating topic. No matter that the participants on this reflector are some of the most knowledgeable people on earth (which they are), and also the nicest. If it isn't Elecraft related it doesn't belong here. Eric has to come on here periodically and remind us all. CME, ICE are not Elecraft topics. There, I feel better now. Rick K2XT ______________________________________________________________ ______________________________________________________________ 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 ______________________________________________________________ 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 ______________________________________________________________ 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
