Re: [Elecraft] April QST: review and The Secret is Out
Actually the bulk of the Navy's ELF TX antenna in Clam Lake WI is/was burried underground... Jon w1jp Before we laugh too much, underground antennas do work. See "Practical Wire Antennas", John Heys, G3BDQ, p79: Subsurface (underground) Antennas. (OK, define, "work"). Rich NU6T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Brown box
Just received K3/100 #493 in Boston! Ordered w/ deposit 6/28/07. Received 2/26/08. Now to work on my schedule to free up the time to play/build... :) 73, Jon w1jp K3-493 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] NB indicator flashing
Easy one: 299,792,458 m/s. Since dark is merely the vacation of light and light vacates thus. ;) w1jp - Original Message - From: "David Ferrington, M0XDF" <[EMAIL PROTECTED]> To: "elecraft" Sent: Wednesday, January 02, 2008 07:15 Subject: [Elecraft] [K3] NB indicator flashing I might have missed this in the manual, but when I change the NB IF width value, I can get to a point where the NB flashes - what does this indicate? -- Ok, so what's the speed of Dark? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 display for contesters
Not in this venue-- maybe on the yahoo group perhaps, we should start a discussion of what a K3 HUD (head's up display) might look like. I am sure there are a bunch of us that could contribute "gadgets" if we could come up with an architecture to support it (e.g., Adobe AIR, Flex, Flash, Java, JSR-168, etc. all of which supported on linux, win, and osx). With a browser-based portal, one could easily design a portal that would allow people to do define a 'gadget' layout that would display whatever information you wanted from the K3 (via K3's data comm). $0.02, Jon w1jp - Original Message - From: "Simon Brown (HB9DRV)" <[EMAIL PROTECTED]> To: Sent: Saturday, December 01, 2007 08:49 Subject: Re: [Elecraft] K3 display for contesters FWIW I am 99.9% sure that all these values will be available via the CAT interface sooner or later. Simon Brown, HB9DRV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Jota
Ditto-- We (Boston Minuteman Council) will also be on-the-air (same freqs.) from Camp Sayer (42° 13' 59" N, 71° 05' 33" W) using individual callsigns (or mine W1JP). YiS,73, Jon w1jp - Original Message - From: "Richard Kent" <[EMAIL PROTECTED]> To: Sent: Tuesday, October 16, 2007 14:57 Subject: [Elecraft] Jota Another shameless plug: As mentioned in another post, this weekend is Jamboree on the Air (JOTA). This is a world scouting event for both boy and girl scouts. As with last year my K2 will be the digital station at camp. These are the suggested frequencies 3940, 7190, 14290, 18140, 21360, 24960, 28390, 50160 SSB and 3570, 7030, 14060, 18080, 21140, 24910, 28180, 50160 CW. I use the "normal" places for the digital. Our calls will be WD8AJG(digital) or the Club call W8VPV(SSB).I use my call because I have not figured out how to change the call and not mess things up in the process. We will be on the air 9 to 5 EDT others maybe longer. Tnx for the bandwidth Richard Kent WD8AJG K2 5296 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 test results?
Just convert it: PdBm=20*log(V/Vo) where Ro=50 ohm, Pm = 0.001 W, thus Vo=sqrt(0.001*50)= 0.224 V so for Pdbm = -136: V=Vo*10^(-136/20) ... V = 35nV or 0.035uV! Jon w1jp - Original Message - From: "Brett gazdzinski" <[EMAIL PROTECTED]> To: Sent: Monday, August 27, 2007 12:38 Subject: [Elecraft] K3 test results? I have been trying to figure out where the K3 will fall in the Sherwood receiver test data chart. http://www.sherweng.com/table.html The info on the Elecraft web page for the K3 is different, and I am not sure how one compares... K3 sensitivity is listed as -136, while the Sherwood page shows microvolt's. Would that correspond to the Sherwood noise floor? What about the preamp? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Keying contacts - Clairification
What if they are 'gold plated' contacts-- does this change the scenario at all? On another note-- how does one tell the checmical makeup visually between bronze, gold, etc.? - Original Message - served to help keep them clean. Modern very low voltage/low current keying circuits don't do that and the contacts easily become intermittent as they collect a coat of oxides and dirt. Such contacts need no such delicate care as perhaps modern contacts might, although it'd be foolish damage them further needlessly. (Some old keys do have silver contacts which should be treated with care, especially if they're plated and not solid silver. Silver oxide is a good conductor, so even if they appear black they are still good electrical contacts. If they become intermittent it's not because they are oxidized but because they are actually dirty with a film covering the silver. Very gentle wiping should restore good contact.) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fw: [Elecraft] Hate the word HAM
I have a different perspective on the code requirement... I was really into Heath Kits when I was in h.s. (~1977). I _so_ wanted to get my Novice license; however, I didn't have an Elmer. I would look at the Heath catalog dreaming that some day I would. I tried learning the code by myself (as I had to learn it for Boy Scouts anyway (it was a first class requirement back then). The problem was that I learned it wrong. Without mentoring, I learned it via mental look-up-lists. I am still struggling with that today. When the code requirement was reduced to 5wpm-- I was able to get my extra license and I have been very active in amateur radio and scouting (I am actually running a JOTA event for the Boston Minuteman Council this Oct.). There were a bunch of people that were just as I. Now I am seeing a big uptake in amateur activity with the dropping of the code requirement. Ironically, I am seeing more people get on CW. IMHO-- CW is more _popular_ now that there isn't a requirement. I _love_ the idea of CW! I wish I were more of an audible communicator (I am very visual)-- it is just something my brain doesn't do very well and I struggle with it. I have one of those MFJ code practice appliances and I struggle >12wpm. I have vowed to master it (well at least >20wpm) just because I will not let it beat me! :) (:I am a stubborn Swede and the only way to get me to do something is to tell me I can't do it:) Youth today have too much on their plate to do what we did. My daughter had a blast at field day! There were 3 other teenagers there and they ran the GOTA station. She made 96 contacts and was psyched to take the test. Now back in the day-2-day, I can't get her to spend the 4h coaching enough to take the exam. They will not invest the time to get on the air as it is too easy to get involved with other things that give immediate gratification, e.g., photography, web design, programming, gaming, etc. I have had some moderate success getting some scouts interested in radio enough to take the test (but I have to bring it to them rather then them being motivated enough to seek out an exam). Sorry, I guess I got a bit winded... $0.02, Jon w1jp - Original Message - From: "Jim Murray" <[EMAIL PROTECTED]> To: "Elecraft Post Message" Sent: Friday, July 06, 2007 23:12 Subject: Re: [Elecraft] Hate the word HAM The theory was bad enough but what about the 20WPM code. Had to go back three times before I got it. Had an awful time. I guess that's one of the reasons I hated to see the cw requirement go. It was so hard for me but if you want it bad enough etc. etc. Cheers, jim/k2hn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
