Re: [Elecraft] KPA500 - just 500 watts?
On 1/25/2011 3:08 PM, Bill W4ZV wrote: > I enjoy operating QRP from portable sites using makeshift antennas but I > give 99% of the credit to the guy on the other end. I strongly agree. > 73, Bill > > P.S. I run 1.5 kW on Topband but always get a thrill working QRP callers. Same here. I have a lot of land, lots of nice antennas, including Beverages, so I can hear pretty well. I particularly like the Stew Perry contest, where you get extra points for working QRP stations, and the ARRL DX Contest, where the DX station sends his power as the exchange. Each year, I'm pleasantly surprised to work a fair number of 5W and 1W stations from JA on 80M and 40M! I'm a member of NCCC, one of the top contesting clubs, and one of our recent Presidents, N6WG, ONLY runs QRP. There are top contesters in AL and MN who often runs QRP. 73, Jim K9YC __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Do not forget 6m. Pain barrier seems to be 1kW. Full legal power (or higher) HF-amplifiers do not have 6m. KPA500 will be instantly on. Tube-type amplifiers (e.g. exellent ACOM1000) take 3 minute heating time. After that the opening on 6m might be history. BennyOH9NB __ 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
Re: [Elecraft] KPA500 - just 500 watts? [END of Thread]
Looks like this one has been beaten to death and is drifting afield... Time to end it for now. 73, Eric Elecraft List Moderator www.elecraft.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
Re: [Elecraft] KPA500 - just 500 watts?
The four stages of fishing: 1 - I caught a fish! 2 - I caught a LOT of fish! 3 - I caught a Trophy fish! 4 - Did I bait my hook? (the Zen state has been achieved) Now how do these relate analogically to amateur radio? Kevin. KD5ONS On Tue, 25 Jan 2011 21:53:38 -0800, eric manning wrote: > Dick said: > > I like to think of DXing as the ham counterpart of fishing, and QRP as > the counterpart of fly fishing. > > Dick, WO1I K3 911 > > Yes indeed, and a contest is a kind of high-speed competitive fishing > with catch-and-release. > And, each competitor can decide at any moment to be either a fisherman > [running] or a fish > [search-and-pounce] > > Eric > Va7DZ > -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Ron, Apparently you are not a woodworker. There isn't a machine on the planet that can do a better job of finely cut dovetails by hand or a surface of a cabinet polished to a mirror smoothness with a hand plane. I do a lot of hand joinery as my other hobby and although I am not as skilled as some of the greats, I have done work that I could never do as well using my powered tools -- and, I have a fairly elaborate wood working shop, certainly more money invested then in my ham radio gear. 73, phil, K7PEH On Jan 25, 2011, at 8:16 PM, Ron D'Eau Claire wrote: > Using a straight key (or bug) is like using a hand plane and chisels to make > furniture. The end result will never be as perfect as something done with > power tools, but the satisfaction is in the challenge of learning to do the > best job possible with something that demands physical skill. > > I am immediately alerted whenever I hear a bug or straight key on the bands. > I find keyers boring by comparison. Not that I won't work someone sending > machine-perfect CW and enjoy the contact, but to me it's like listening to a > "computer voice" instead of a real person speaking. > > I quite agree that the skill in working QRP goes to the receiving station. I > get a much bigger personal thrill out of achieving Q5 copy from a guy > running 100 mW than I do when someone reports Q5 copy when I'm running 100 > mW. > > Ron AC7AC > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pete Smith > Sent: Tuesday, January 25, 2011 1:33 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] KPA500 - just 500 watts? > > And I think a lot of the "skill" should be credited to the ops on the > other end who manage to pull out the QRP stations. That said, operator > skill is particularly important for any QRP station - I will never > understand why many still use straight keys, badly formed cw, and > unnecessary verbiage (like "/QRP", for example). > > > 73, Pete N4ZR > > __ > 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Both! Ron AC7AC -Original Message- The Woodwright or the New Yankee Workshop? On Tue, 25 Jan 2011 21:11:03 -0800, Rich NU6T wrote: > I've seen some really hacked carpentry done with power tools. > > If I had to compare weekend warrior power tool work to master craftsman > hand tool work, I'd go with the hand tool job. > > Rich > NU6T > (here it comes) __ 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
[Elecraft] KPA500 - just 500 watts?
Dick said: I like to think of DXing as the ham counterpart of fishing, and QRP as the counterpart of fly fishing. Dick, WO1I K3 911 Yes indeed, and a contest is a kind of high-speed competitive fishing with catch-and-release. And, each competitor can decide at any moment to be either a fisherman [running] or a fish [search-and-pounce] Eric Va7DZ -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Rich (and Ron), You are comparing apples and oranges. Master craftsmen use power tools as a 'tool' to get the job done easier and faster. They also are expert in the use of hand tools to do the same job. The skill is not in the tools used, but at the hands of the user. There are just as many "botched" jobs using power tools as there are using hand tools. Those of us who have done professional woodworking have a saying -- The difference between an amateur and a professional is that the professional knows how to fix his mistakes (sometimes that means starting over). BTW - carpentry does not equal woodworking - two different fields - the carpenter measures to the nearest 1/8 inch, but the woodworker is concerned about which side of a of a 7mm pencil mark to cut on. Similar analogies apply for CW and the proper use of power. 73, Don W3FPR On 1/26/2011 12:11 AM, Rich NU6T wrote: > I've seen some really hacked carpentry done with power tools. > > If I had to compare weekend warrior power tool work to master craftsman > hand tool work, I'd go with the hand tool job. > > Rich > NU6T > (here it comes) > > On 1/25/2011 8:16 PM, Ron D'Eau Claire wrote: >> Using a straight key (or bug) is like using a hand plane and chisels to make >> furniture. The end result will never be as perfect as something done with >> power tools, but the satisfaction is in the challenge of learning to do the >> best job possible with something that demands physical skill. > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
The Woodwright or the New Yankee Workshop? On Tue, 25 Jan 2011 21:11:03 -0800, Rich NU6T wrote: > I've seen some really hacked carpentry done with power tools. > > If I had to compare weekend warrior power tool work to master craftsman > hand tool work, I'd go with the hand tool job. > > Rich > NU6T > (here it comes) > > On 1/25/2011 8:16 PM, Ron D'Eau Claire wrote: >> Using a straight key (or bug) is like using a hand plane and chisels to >> make >> furniture. The end result will never be as perfect as something done >> with >> power tools, but the satisfaction is in the challenge of learning to do >> the >> best job possible with something that demands physical skill. >> >> I am immediately alerted whenever I hear a bug or straight key on the >> bands. >> I find keyers boring by comparison. Not that I won't work someone >> sending >> machine-perfect CW and enjoy the contact, but to me it's like listening >> to a >> "computer voice" instead of a real person speaking. >> >> I quite agree that the skill in working QRP goes to the receiving >> station. I >> get a much bigger personal thrill out of achieving Q5 copy from a guy >> running 100 mW than I do when someone reports Q5 copy when I'm running >> 100 >> mW. >> >> Ron AC7AC >> >> -Original Message----- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pete Smith >> Sent: Tuesday, January 25, 2011 1:33 PM >> To: elecraft@mailman.qth.net >> Subject: Re: [Elecraft] KPA500 - just 500 watts? >> >> And I think a lot of the "skill" should be credited to the ops on the >> other end who manage to pull out the QRP stations. That said, operator >> skill is particularly important for any QRP station - I will never >> understand why many still use straight keys, badly formed cw, and >> unnecessary verbiage (like "/QRP", for example). >> >> >> 73, Pete N4ZR >> >> __ >> 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 >> >> > __ > 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 -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Yes do you want to buy one? /Jim SM2EKM - On 2011-01-25 20:09, Grant Youngman wrote: > A listen on the bands during most contests, makes it pretty clear which of > the 3 is most normally left out :-) > > 4cx15000 anyone? > > Grant/NQ5T > > On Jan 25, 2011, at 12:59 PM, Lu Romero wrote: > >> John, what follows is "The W4LT Big-Time Radio Corollary of >> Contesting (or DX'ing): >> >> - >> Antenna >> Brains >> Power >> >> Pick two of the three. >> -- >> __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I've seen some really hacked carpentry done with power tools. If I had to compare weekend warrior power tool work to master craftsman hand tool work, I'd go with the hand tool job. Rich NU6T (here it comes) On 1/25/2011 8:16 PM, Ron D'Eau Claire wrote: > Using a straight key (or bug) is like using a hand plane and chisels to make > furniture. The end result will never be as perfect as something done with > power tools, but the satisfaction is in the challenge of learning to do the > best job possible with something that demands physical skill. > > I am immediately alerted whenever I hear a bug or straight key on the bands. > I find keyers boring by comparison. Not that I won't work someone sending > machine-perfect CW and enjoy the contact, but to me it's like listening to a > "computer voice" instead of a real person speaking. > > I quite agree that the skill in working QRP goes to the receiving station. I > get a much bigger personal thrill out of achieving Q5 copy from a guy > running 100 mW than I do when someone reports Q5 copy when I'm running 100 > mW. > > Ron AC7AC > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pete Smith > Sent: Tuesday, January 25, 2011 1:33 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] KPA500 - just 500 watts? > > And I think a lot of the "skill" should be credited to the ops on the > other end who manage to pull out the QRP stations. That said, operator > skill is particularly important for any QRP station - I will never > understand why many still use straight keys, badly formed cw, and > unnecessary verbiage (like "/QRP", for example). > > > 73, Pete N4ZR > > __ > 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 > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I run my Expert 1k-FA at 600W driving it with K3 set at 15W. When I hear /QRP station I switch from 600W to 15W. My statistics is that less then 50% of the /QRP callers hear me then. When in the contest /QRP station calls I often come back to him with my call/QRO to show him that this power information is redundant 73, Igor UA9CDC - Original Message - From: "Guy Olinger K2AV" To: "Rick Dettinger" Cc: Sent: Wednesday, January 26, 2011 4:55 AM Subject: Re: [Elecraft] KPA500 - just 500 watts? >I can't begin to tell you all the times on 40m from NY4A in a DX contest > that the /QRP was all that I was getting, just because I could recognize > the > pattern. And, in Murphy-esque form the QRP station would waste all the > QSB > peaks on /QRP. I don't know why they bother. All the work is on my end. > *I* should get extra points for copying QRP stations, as in the Stew > Perry. > > > If you want people to copy you on the other end when the path is minimal, > do > NOT send /QRP on your call. We ALREADY know you either aren't running any > power, or are antenna-challenged, or the path is almost not there, or any > or > all of the above. > > /QRP *IS* a waste of time in a contest. Save it for casual QSO's when > you > know the other end can copy you. > > > > On Tue, Jan 25, 2011 at 5:09 PM, Rick Dettinger wrote: > >> I agree with the first two. I appreciate a clean output from my >> transmitter and I would much rather use a bug. More fun! >> But /QRP is not redundant, if that is what I want to communicate, then >> I use it. I don't see it as a bad operating practice. I find that it >> encourages other QRP ops to give me a try. Those are often the most >> enjoyable contacts. 2 way QRP. >> >> >> 73, >> Rick >> K7milliwatt >> >> >> > I will never >> > understand why many still use straight keys, badly formed cw, and >> > unnecessary verbiage (like "/QRP", for example). >> > >> > >> > 73, Pete N4ZR >> >> __ >> 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 >> > __ > 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I do. "Casual" QSO's are the only kind I was speaking to. The only ones I have interest in. I have no interest in dealing with crowds, weather on the air or at the mall. 73, Rick Dettinger K7MW > > /QRP *IS* a waste of time in a contest. Save it for casual QSO's > when you know the other end can copy you. > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Using a straight key (or bug) is like using a hand plane and chisels to make furniture. The end result will never be as perfect as something done with power tools, but the satisfaction is in the challenge of learning to do the best job possible with something that demands physical skill. I am immediately alerted whenever I hear a bug or straight key on the bands. I find keyers boring by comparison. Not that I won't work someone sending machine-perfect CW and enjoy the contact, but to me it's like listening to a "computer voice" instead of a real person speaking. I quite agree that the skill in working QRP goes to the receiving station. I get a much bigger personal thrill out of achieving Q5 copy from a guy running 100 mW than I do when someone reports Q5 copy when I'm running 100 mW. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pete Smith Sent: Tuesday, January 25, 2011 1:33 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 - just 500 watts? And I think a lot of the "skill" should be credited to the ops on the other end who manage to pull out the QRP stations. That said, operator skill is particularly important for any QRP station - I will never understand why many still use straight keys, badly formed cw, and unnecessary verbiage (like "/QRP", for example). 73, Pete N4ZR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
> Many countries have lower limits ... 400W in G, VK, and ZL, I > think Almost right, Fred. We Kiwis have the luxury of a whole dB more, or 500W out in old money, but since it's measured at the transmitter output rather than measured or calculated at the antenna feed point (as in the UK), some of us max out well below 500W of radiated RF even with a legal-limit amp. As a long time member of the G-QRP-Club, I'm currently enjoying WSPRing to Europe on 40m with 1W out of the K3 giving roughly ½W into the vertical and a very slightly warm long run of coax. Admittedly I'd be bored stiff if it wasn't fully automatic, so I leave it running while I Do Other Stuff, working or sleeping in fact. The KPA500 sounds ideal for me *provided* it is as reliable as, errr, oh, death and taxes. Amp reliability is every bit as important as size and weight for DXpeditioning and contesting. 72 Gary ZL2iFB __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I agree with Bill that working QRP stations can be a lot of fun. Like when I received this email: Hi Dave! Just a heads up that I was using 300 milliwatts to a G5RV (@80ft) with a Small Wonders Lab Rockmite 20 to work you @ 2304 on 14.059 - will qsl via lotw...TU for digging me out! You are the 2nd best distance I have with this little rig... NICE EARS OM! 72 de k7hv/qrpp I distinctly remember working him. He was very weak, but I was able to pull him out. Little did he know -- I was using a K3! Dave, N4QS - Original Message - From: "Bill W4ZV" To: Sent: Tuesday, January 25, 2011 5:08 PM Subject: Re: [Elecraft] KPA500 - just 500 watts? > > > Pete Smith N4ZR wrote: >> >> And I think a lot of the "skill" should be credited to the ops on the >> other end who manage to pull out the QRP stations. >> > > I agree. Most of the credit should go the the station that copies QRP > stations. It's one thing to generate a weak signal but entirely another > to > be able to *receive* weak signals. IMHO the latter is MUCH more difficult > ...and more satisfying to me personally. > > I enjoy operating QRP from portable sites using makeshift antennas but I > give 99% of the credit to the guy on the other end. > > 73, Bill > > P.S. I run 1.5 kW on Topband but always get a thrill working QRP callers. > > http://www.eham.net/articles/10078 > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/KPA500-just-500-watts-tp5959017p5960939.html > Sent from the [QRO] mailing list archive at Nabble.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 __ 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
[Elecraft] KPA500 - just 500 watts?
Hello Jeff, Perhaps, this explains why parallel importers (grey importers) can survive in Australia. These parallel importers even have their own technical teams, highly qualified technicians to provide product warranty on their own. cheers, Johnny VR2XMC 寄件人﹕ Jeff Cochrane - VK4BOF 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2011/1/26 (三) 8:38:02 AM 主題： Re: [Elecraft] KPA500 - just 500 watts? Hi Bill, I too would love to run at 100MW but the electricity bill would be a real killer! :-) On the other hand, 100mW may be a better proposition though and alot of fun can be had at that power level too. (I run my K3/100 barefoot, have a look at the grossly inflated prices various Australian suppliers charge for gear here and you'll know why most Aussies dont run more than 100W.) Jeff Cochrane - VK4BOF Innisfail, QLD, Australia Elecraft K3# 4257 - Original Message - From: Bill K9YEQ To: d...@w3fpr.com ; elecraft@mailman.qth.net Sent: Wednesday, January 26, 2011 10:09 AM Subject: Re: [Elecraft] KPA500 - just 500 watts? I love QRP but run THP 2.5kfx generally in the evening on 75m as I cannot be heard well without the 1.5KW out. I don't like the life's too short for QRP statement as I have had some of my best contacts at less than 2W. I usually run 2W or less. I love 100 MW! Bill K9YEQ __ 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 __ 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
[Elecraft] KPA500 - just 500 watts?
Hi Brian, Yes, correct. I live in high rise apartment in urban area of Hong Kong overlooking the spectacular Victoria Harbour. I have my hamstick mounted on the window frame. I have never turned my ICPW1to full 1KW power which is a waste to my linear. KPA500 seems suitable for my case. I am awaiting further details so as to decide between it and SPE Expert 1ka. I will look at the total costs of KPA500 + KAT500 for comparison. I trust the decision of Elecraft for just 500 watts could be as follows; 1. the most marketable segment in terms of price and RF power; 2. the kit version can be easily handled by most kit builders; 3. the kit version will have same performance as the assembled version; 4. material costs of KPA500 are reasonably cheap but with reliable quality leading to higher profit margin 5. the shipping weight of the end product is not prohibitively heavy so that overseas sales are possible. Wayne is a good RF engineer whereas Eric is a good business man (Sorry, I don't use the word 'excellent' because I would like to push them harder !!). I am always interested in Elecraft's business proposition and sometimes use it as case study in business school during my part time lecturing. 73 Johnny VR2XMC 寄件人﹕ Brian Linn 收件人﹕ Elecraft Reflector 傳送日期﹕ 2011/1/26 (三) 7:59:59 AM 主題： Re: [Elecraft] KPA500 - just 500 watts? It's also great for those of us using indoor antennas, where 1500 watts is not a reality. Brian KD0HII 500 W (+) is the ideal output level for many operators and situations. Call it "medium" power, if you will -- but the KPA500 can get the job done, while taking up just a K3's worth of space on your desk. And you can pick it up and move it if you need to. 73, Wayne N6KR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Hi Paul Thats what I am more interested in, the IMD performance of the future KPA500. I own a Harris RF355 that I would like to replace with a solid state amp. I use this AMP in my remote station. It is a maintenance headache with limited integration potential. Unfortunately non of the solid state offerings on the market have acceptable IMD performance. I seriously doubt that there will ever be a solid state amplifier manufactured for the ham market that will approach the IMD performance of the the Harris RF355 with the single 3cx800. I wish Acom would produce a Autotune amplifier that uses a pair of 3cx800PX's At least the IMD performance would be a certainty. I dont know what devices the KPA500 uses? 73 John --- On Tue, 1/25/11, Paul Christensen wrote: > From: Paul Christensen > Subject: Re: [Elecraft] KPA500 - just 500 watts? > To: elecraft@mailman.qth.net > Date: Tuesday, January 25, 2011, 8:47 AM > > Speaking of dollars per watt, > I'm presently using a homebrew pair of 813's > > which produce > > 800 watts (QSK but no 6M) and I have less than $400 > into it. $0.50 dollars > > per watt. > > Impressive, Vic. I would love to see some photos of your > amp! In addition > to the price/watt factor, perhaps equally important is a > figure that takes > into account price in relation to IMD in -dBc per $. > > Paul, W9AC > > __ > 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 > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Hi Bill, I too would love to run at 100MW but the electricity bill would be a real killer! :-) On the other hand, 100mW may be a better proposition though and alot of fun can be had at that power level too. (I run my K3/100 barefoot, have a look at the grossly inflated prices various Australian suppliers charge for gear here and you'll know why most Aussies dont run more than 100W.) Jeff Cochrane - VK4BOF Innisfail, QLD, Australia Elecraft K3# 4257 - Original Message - From: Bill K9YEQ To: d...@w3fpr.com ; elecraft@mailman.qth.net Sent: Wednesday, January 26, 2011 10:09 AM Subject: Re: [Elecraft] KPA500 - just 500 watts? I love QRP but run THP 2.5kfx generally in the evening on 75m as I cannot be heard well without the 1.5KW out. I don't like the life's too short for QRP statement as I have had some of my best contacts at less than 2W. I usually run 2W or less. I love 100 MW! Bill K9YEQ __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I love QRP but run THP 2.5kfx generally in the evening on 75m as I cannot be heard well without the 1.5KW out. I don't like the life's too short for QRP statement as I have had some of my best contacts at less than 2W. I usually run 2W or less. I love 100 MW! Bill K9YEQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Tuesday, January 25, 2011 5:55 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 - just 500 watts? QRP, 100 watts, or QRO at 500 watts+ -- they all have their place. If one is operating portable with batteries on a mountain hike, there is no other reasonable choice than QRP, and sometimes antennas are compromise for that situation too, but many do enjoy making a bunch of contacts in that environment. 100 watts (well somewhere between 50 and 100) is normal for me at the home station. I will drop to 5 watts if operating near the QRP "watering holes" just so I don't cover up other low power stations, but for most causal QSOs, I run between 50 and 100 watts. I will have an amplifier on the air someday (I have done 55 years of hamming without one), but it will be used when conditions warrant it. Yes, contests often warrant it, and when trying for that elusive DX in a pileup. However, I will continue to run near the 100 watt level most of the time. Some of the guys I talk to on 80 meter SSB tend to razz me about not running more power, but they can hear me, so why run more - if I am only S-7 on their meter, but perfectly Q5 copy, why should I run up the electric bill just because they are running the legal limit and bragging about their S-9+60 reports. I just don't see the point. Oh yes, some of these guys are running ESSB too, but I prefer to limit my bandwidth. Just because it can be done is not a valid reason to do it IMHO. "To everything Turn, Turn, Turn --- To every thing there is a season, and a time to every purpose under the heaven:" - based on the Book of Ecclesiastes and put to music by Pete Seegar in 1959. 73, Don W3FPR __ 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
It's also great for those of us using indoor antennas, where 1500 watts is not a reality. Brian KD0HII 500 W (+) is the ideal output level for many operators and situations. Call it "medium" power, if you will -- but the KPA500 can get the job done, while taking up just a K3's worth of space on your desk. And you can pick it up and move it if you need to. 73, Wayne N6KR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I can't begin to tell you all the times on 40m from NY4A in a DX contest that the /QRP was all that I was getting, just because I could recognize the pattern. And, in Murphy-esque form the QRP station would waste all the QSB peaks on /QRP. I don't know why they bother. All the work is on my end. *I* should get extra points for copying QRP stations, as in the Stew Perry. If you want people to copy you on the other end when the path is minimal, do NOT send /QRP on your call. We ALREADY know you either aren't running any power, or are antenna-challenged, or the path is almost not there, or any or all of the above. /QRP *IS* a waste of time in a contest. Save it for casual QSO's when you know the other end can copy you. On Tue, Jan 25, 2011 at 5:09 PM, Rick Dettinger wrote: > I agree with the first two. I appreciate a clean output from my > transmitter and I would much rather use a bug. More fun! > But /QRP is not redundant, if that is what I want to communicate, then > I use it. I don't see it as a bad operating practice. I find that it > encourages other QRP ops to give me a try. Those are often the most > enjoyable contacts. 2 way QRP. > > > 73, > Rick > K7milliwatt > > > > I will never > > understand why many still use straight keys, badly formed cw, and > > unnecessary verbiage (like "/QRP", for example). > > > > > > 73, Pete N4ZR > > __ > 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 > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
QRP, 100 watts, or QRO at 500 watts+ -- they all have their place. If one is operating portable with batteries on a mountain hike, there is no other reasonable choice than QRP, and sometimes antennas are compromise for that situation too, but many do enjoy making a bunch of contacts in that environment. 100 watts (well somewhere between 50 and 100) is normal for me at the home station. I will drop to 5 watts if operating near the QRP "watering holes" just so I don't cover up other low power stations, but for most causal QSOs, I run between 50 and 100 watts. I will have an amplifier on the air someday (I have done 55 years of hamming without one), but it will be used when conditions warrant it. Yes, contests often warrant it, and when trying for that elusive DX in a pileup. However, I will continue to run near the 100 watt level most of the time. Some of the guys I talk to on 80 meter SSB tend to razz me about not running more power, but they can hear me, so why run more - if I am only S-7 on their meter, but perfectly Q5 copy, why should I run up the electric bill just because they are running the legal limit and bragging about their S-9+60 reports. I just don't see the point. Oh yes, some of these guys are running ESSB too, but I prefer to limit my bandwidth. Just because it can be done is not a valid reason to do it IMHO. "To everything Turn, Turn, Turn --- To every thing there is a season, and a time to every purpose under the heaven:" - based on the Book of Ecclesiastes and put to music by Pete Seegar in 1959. 73, Don W3FPR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I just read the mail since I am not able to entertain getting a KPA500, etal. But my experience running my K3/10 on 80m SSB is everyone hears me FB. That is not 100w its 12w! So when the noise floor is S3 and I am S8 (30-dB S/N) and the next guy is S9+10 it gets kinda crazy-funny doncha think! I even check into the Elecraft Sunday 20m net occassionally. Not real loud but once the antennas point up to me I get in. OK, I will be building a 300w sspa when I clear out the line-up of projects ahead of it. My cost est. is $2/watt not including cost of 28v PS. I've discussed what it is I am building, before. I don't really want to discuss it on the reflector. If you go to my website and click "About KL7UW" link, I list my future projects at the bottom of the page. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == *temp not in service __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I like to think of DXing as the ham counterpart of fishing, and QRP as the counterpart of fly fishing. Dick, WO1I K3 911 At 05:50 PM 1/25/2011, Julian, G4ILO wrote: >It's a myth that QRP stations are always weak. Sometimes, of course, they >are. But 5W is only two S-points less than the 100W most people use. >Antennas can make more difference than that, and no-one talks about those >when having these silly "life is too short for QRP" arguments. > > >Pete Smith N4ZR wrote: > > > > And I think a lot of the "skill" should be credited to the ops on the > > other end who manage to pull out the QRP stations. That said, operator > > skill is particularly important for any QRP station - I will never > > understand why many still use straight keys, badly formed cw, and > > unnecessary verbiage (like "/QRP", for example). > > > > > > >- >Julian, G4ILO. K2 #392 K3 #222. >* G4ILO's Shack - http://www.g4ilo.com >* KComm - http://www.g4ilo.com/kcomm.html >* KTune - http://www.g4ilo.com/ktune.html > >-- >View this message in context: >http://elecraft.365791.n2.nabble.com/KPA500-just-500-watts-tp5959017p5960882.html >Sent from the [QRO] mailing list archive at Nabble.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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Pete Smith N4ZR wrote: > > And I think a lot of the "skill" should be credited to the ops on the > other end who manage to pull out the QRP stations. > I agree. Most of the credit should go the the station that copies QRP stations. It's one thing to generate a weak signal but entirely another to be able to *receive* weak signals. IMHO the latter is MUCH more difficult ...and more satisfying to me personally. I enjoy operating QRP from portable sites using makeshift antennas but I give 99% of the credit to the guy on the other end. 73, Bill P.S. I run 1.5 kW on Topband but always get a thrill working QRP callers. http://www.eham.net/articles/10078 -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-just-500-watts-tp5959017p5960939.html Sent from the [QRO] mailing list archive at Nabble.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
Re: [Elecraft] KPA500 - just 500 watts?
It's a myth that QRP stations are always weak. Sometimes, of course, they are. But 5W is only two S-points less than the 100W most people use. Antennas can make more difference than that, and no-one talks about those when having these silly "life is too short for QRP" arguments. Pete Smith N4ZR wrote: > > And I think a lot of the "skill" should be credited to the ops on the > other end who manage to pull out the QRP stations. That said, operator > skill is particularly important for any QRP station - I will never > understand why many still use straight keys, badly formed cw, and > unnecessary verbiage (like "/QRP", for example). > > - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-just-500-watts-tp5959017p5960882.html Sent from the [QRO] mailing list archive at Nabble.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
Re: [Elecraft] KPA500 - just 500 watts?
I agree with the first two. I appreciate a clean output from my transmitter and I would much rather use a bug. More fun! But /QRP is not redundant, if that is what I want to communicate, then I use it. I don't see it as a bad operating practice. I find that it encourages other QRP ops to give me a try. Those are often the most enjoyable contacts. 2 way QRP. 73, Rick K7milliwatt > I will never > understand why many still use straight keys, badly formed cw, and > unnecessary verbiage (like "/QRP", for example). > > > 73, Pete N4ZR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
And I think a lot of the "skill" should be credited to the ops on the other end who manage to pull out the QRP stations. That said, operator skill is particularly important for any QRP station - I will never understand why many still use straight keys, badly formed cw, and unnecessary verbiage (like "/QRP", for example). 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 1/25/2011 1:55 PM, JAMES ROGERS wrote: > The QRPer's mantra, "Skill not power" > > 73s Jim, W4ATK > On Jan 25, 2011, at 12:47 PM, Wayne Burdick wrote: > >> k...@baymoon.com wrote: >> >>> The question of "how much power is enough?" is always good for a lot >>> of chatter. >> Indeed. >> >> This thread is always entertaining to those (including myself) who >> have completed DXCC with less than 5 watts and a random wire. Not that >> I'm biased. It was a struggle, and there's definitely a time and place >> for more power. >> >> But occasionally I like to drop down to nearly nothing to remind >> myself that, when the bands are really open, you *can* do it with a >> lot less. >> >> Eric doesn't talk about his own QRP accomplishments much, but he >> worked over 100 countries on a NorCal 40 (one of my first designs) >> running just a few watts. In fact that's how we first met; I think he >> called me to (a) thank me for the design and (b) boast just a little >> to someone who would appreciate it :) >> >> Wayne >> N6KR >> >> >> __ >> 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 > JIM ROGERS, W4ATK > w4...@bellsouth.net > http://web.me.com/jimrogers_w4atk > K3/100 P3 > K2/10 > > > > > __ > 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 > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Wayne, Interesting. It was the Norcal 40A that also got me interested in QRP. When I got back into ham radio in 2004, all I could think of was SSB and legal limit power. This is because my previous stint as a ham operator in 1966 was as Novice only: meaning CW only and 75 watts input power. But, I soon tired of amplified power and now almost never use it. But, I want it there when necessary which is why I will buy the KPA500. But, I do have my KX1 and I am working more and more QSO of significant distance. So far my longest is only 1000 miles but this is mostly because of my lack of time lately to operate during the day when the bands are best on 20 and 40. Although, 40 is not bad at night either at times. But, I have reversed my position from almost always having my amp on to now almost never having it on. 73, phil, K7PEH On Jan 25, 2011, at 10:47 AM, Wayne Burdick wrote: > k...@baymoon.com wrote: > >> The question of "how much power is enough?" is always good for a lot >> of chatter. > > Indeed. > > This thread is always entertaining to those (including myself) who > have completed DXCC with less than 5 watts and a random wire. Not that > I'm biased. It was a struggle, and there's definitely a time and place > for more power. > > But occasionally I like to drop down to nearly nothing to remind > myself that, when the bands are really open, you *can* do it with a > lot less. > > Eric doesn't talk about his own QRP accomplishments much, but he > worked over 100 countries on a NorCal 40 (one of my first designs) > running just a few watts. In fact that's how we first met; I think he > called me to (a) thank me for the design and (b) boast just a little > to someone who would appreciate it :) > > Wayne > N6KR > > > __ > 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Not that I want to start an argument here, but I think a strong case can be made that the US power limit of 1.5 kW is too high. (Ask any urban ham who has had to deal with 1.5 kW RFI issues.) With some exceptions, we're forced to run 1.5 kW because the competition does, not because of propagation or noise levels. Some exceptions are DX on 80 and 160, backscatter, and much VHF/UHF operation. Judging from the number of uncopyable DX stations who answer my CQ's on 80 and 160, 100 W is clearly too low. 500 W might be reasonable. The UK power limit is 400 W, and we work lots of them on 160. Any who want to argue, let's do that off line. 73, Scott K9MA Scott Ellington Madison, Wisconsin USA __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I don't know about majic, but 500 watts out closely mimics the maximum legal power of the era that many of us got into ham radio. The power was specified in input power and was limited to 1 KW. I suspect that the KPA-500 is close to that. 500 watts seems to be a good figure for a 120 volt supply voltage. And while it might be an expensive way to go, the KPA-500 could be driven to 200 watts with about 7 watts, giving what some have wished for with a K3. 200 watts of very clean SSB output. I only do CW so this is just a thought. And I think there is a full power amplifier in the works. 73, Rick Dettinger K7MW > > > OK... > > Got my flame suit on > > Why just 500 watts with te KPA-500? Is that a majic number? I am > just asking. > It seems that 500 watts would be OK if you are on a DXpedition...but > if you are > in the "fray" of a contest in the USofAthe more watts the better. > > > Don't get me wrong...I love the idea of the KPA500 and the KAT500. > But what is > majic about 500 watts when many amps will run much more than that > and are a lot > less money? Cost vs > > Please don't kill mejust...wondering what the big deal is! > > Lee - K0WA > K3/100 with the AL-82 > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
A listen on the bands during most contests, makes it pretty clear which of the 3 is most normally left out :-) 4cx15000 anyone? Grant/NQ5T On Jan 25, 2011, at 12:59 PM, Lu Romero wrote: > John, what follows is "The W4LT Big-Time Radio Corollary of > Contesting (or DX'ing): > > - > Antenna > Brains > Power > > Pick two of the three. > -- > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
John, what follows is "The W4LT Big-Time Radio Corollary of Contesting (or DX'ing): - Antenna Brains Power Pick two of the three. -- 73 Lu W4LT K3# 3192 On 1/25/2011 11:21 AM, John Ragle wrote: > It seems to me that the QRO philosophy of "Stomp 'em into the > Dust" is a poor substitute for operating skill. __ 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
Re: [Elecraft] KPA500 - just 500 watts?
The QRPer's mantra, "Skill not power" 73s Jim, W4ATK On Jan 25, 2011, at 12:47 PM, Wayne Burdick wrote: > k...@baymoon.com wrote: > >> The question of "how much power is enough?" is always good for a lot >> of chatter. > > Indeed. > > This thread is always entertaining to those (including myself) who > have completed DXCC with less than 5 watts and a random wire. Not that > I'm biased. It was a struggle, and there's definitely a time and place > for more power. > > But occasionally I like to drop down to nearly nothing to remind > myself that, when the bands are really open, you *can* do it with a > lot less. > > Eric doesn't talk about his own QRP accomplishments much, but he > worked over 100 countries on a NorCal 40 (one of my first designs) > running just a few watts. In fact that's how we first met; I think he > called me to (a) thank me for the design and (b) boast just a little > to someone who would appreciate it :) > > Wayne > N6KR > > > __ > 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 JIM ROGERS, W4ATK w4...@bellsouth.net http://web.me.com/jimrogers_w4atk K3/100 P3 K2/10 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
In a pileup, you want to work the target station. Everone is bunched up over the listening range of the DX station, which is sometimes one frequency plus or minus a fraction of a KHz. In that situation, you want to get the contact and regard for others in the pileup plays little role. Most hams will put up the best antenna they can. After that, the limiting factors are (1) propogation (it is what it is when you are hearing the target and want to try and work it), (2) operating skill (something to acquire and constantly improve), (3) luck (truly being in the right place at the right time) and (4) signal strength on the receiving end (in that situation, every watt counts to some extent). Sometimes, barefoot does it. Othertimes, a KW doesn't. A good analogy is entering a knife fight with your bare hands. You might win, but then again I'll take the availability of legal limit any day when I head into a pileup. Lou, W0FK John Ragle wrote: > > My reaction to your question is "who cares?" Your response indicates > your lack of regard for the others who must share spectrum space with you. > > = > > On 1/25/2011 11:59 AM, briana wrote: >> John, >> >> Fine in theory. Now tell me the power level I need to crack any given >> pileup in a reasonable amount of time and I'll use it. > > __ > 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 > > - St. Louis, MO K3 #2513, P3 #620 -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-just-500-watts-tp5959017p5960029.html Sent from the [QRO] mailing list archive at Nabble.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
Re: [Elecraft] KPA500 - just 500 watts?
On 1/25/2011 8:21 AM, John Ragle wrote: > 1 S-unit is about 6 dB. Agreed. 500W to 1500W [legal max in US] is 4.7712 dB, or 0.7952 S-units. I'd bet my paycheck, if I still got one, that being in the right place and time in the pileup and/or a better antenna will make way more difference snagging the DX than being 0.7952 S-units stronger. Many countries have lower limits ... 400W in G, VK, and ZL, I think, and there are a lot those folks on this list with E-radios. My 1500W amp, which I normally run at about 600W to keep peace with the TV when the beam is pointed at the house, will depart as soon as I have my KPA500. > > There is a connection between this attitude and the impulse to > communicate by voice methods, even to the resurgence of interest in > broadcast quality AM transmission. I believe this stems from the "If I shout into my cell phone, the other guy [and everyone around me] will hear me better" theory. 73, Fred K6DGW [only 57 years] - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.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
Re: [Elecraft] KPA500 - just 500 watts?
k...@baymoon.com wrote: > The question of "how much power is enough?" is always good for a lot > of chatter. Indeed. This thread is always entertaining to those (including myself) who have completed DXCC with less than 5 watts and a random wire. Not that I'm biased. It was a struggle, and there's definitely a time and place for more power. But occasionally I like to drop down to nearly nothing to remind myself that, when the bands are really open, you *can* do it with a lot less. Eric doesn't talk about his own QRP accomplishments much, but he worked over 100 countries on a NorCal 40 (one of my first designs) running just a few watts. In fact that's how we first met; I think he called me to (a) thank me for the design and (b) boast just a little to someone who would appreciate it :) Wayne N6KR __ 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
Re: [Elecraft] KPA500 - just 500 watts?
On 1/25/2011 8:59 AM, N2TK, Tony wrote: > Having the capability to go to 1500W in these situations may make the > difference between working a "new one" and not working the "new one". I used to be one of those "100 watts is plenty" guys -- licensed for 55 years now, I bought my first amp in 2004. Now I use it almost all the time. The main reason is RF noise on the other end. I live in the mountains with fairly low population density, so most of the time I have a local noise level of less than S3 (on a calibrated K3 meter). It's common for guys living in towns or cities to have an S7-9 noise level. When I lived in Chicago my noise level was rarely below S7. On a calibrated S-meter, the difference between S3 and S7 is 24dB. S3 to S9 is 36dB. The difference between 100W and 500W is 7db; 500W to 1.5kW is another 4.7dB. So the short answer is that the 500W amp gives you a one S-unit boost to get over the other guy's RF noise, and the 1.5kW amp gives you two S-units. Dollar cost of the power amp is only part of the equation. As others have noted, you'll need to run 240V into your shack to run most 1.5kW amps effectively. That costs money. The power supplies for most 1.5kW amps are big and HEAVY -- as we get older, it gets tougher to lift them (or transport them), and it can get very expensive to ship them. The tubes used in most big power amps require a 3-minute warm-up, while most 500W solid state amps are instant-on. I've missed more than a few DX contacts in that 3-minute cycle. 73, Jim K9YC __ 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
Re: [Elecraft] KPA500 - just 500 watts?
The question of "how much power is enough?" is always good for a lot of chatter. Yes, an extra S unit requires 6 dB more power. Under some conditions, if 100 w gets you to S7, then dumping in enough power to get you to S8 is a case of diminishing returns. But, if 100 watts gets you to S3 with ambient noise hovering between S2 and S4, then that extra S unit can make the difference between making that contest Q or getting that new country. Emotionally, it's hard to grok that going from 500 watts to 1500 watts makes scant difference in what's heard on the other end of the circuit. I know that there are rare cases where cutting back from 1 KW to 500 watts reduces the R from a 5 to a 4, but usually it makes no difference. After a zillion years of running 100 watts or less into random lengths strung out of windows, I got my first yagi in 1981, and my first amp - an Ameritron AL-80 (the very first one with quasi-QSK built in). It put out about 700 watts, comfortably, and with the TET 4-element/triband yagi, I felt indominitable. Pile ups? No problem. Contest score surges; big time. Since then, I've spent considerably more on tower, yagis, SO2R radios and amps, and I've never felt the same sense of differentiation as when I first got a yagi and an amp. Right now, I have a Alpha 87A and Ten-Tec Centurion. I never run either above 1 KW. When the KPA-500 comes out, I'm inclined to put it in place of the Centurion and see how it plays. If I see little difference, I'll probably put the Centurion on the shelf, or sell it. If the difference is really scant, I may do the same with the Alpha. I already have 240 at the rig desk, so that's not an issue. I have been hesitant to go solid-state QRO because of the horror stories I've heard about amps blowing up. But, I don't think Elecraft will put an amp on the market until they believe it's reasonably bullet proof. My dos centavos, Rob K6RB __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I'm planning to photos on my website soon. IMD would be terrible because it operates in class C. I'm a CW operator! But I designed the circuit so that the keying characteristics of my K3 are preserved. On 1/25/2011 8:47 AM, Paul Christensen wrote: >> Speaking of dollars per watt, I'm presently using a homebrew pair of 813's >> which produce >> 800 watts (QSK but no 6M) and I have less than $400 into it. $0.50 dollars >> per watt. > > Impressive, Vic. I would love to see some photos of your amp! In addition > to the price/watt factor, perhaps equally important is a figure that takes > into account price in relation to IMD in -dBc per $. > > Paul, W9AC -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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
Re: [Elecraft] KPA500 - just 500 watts?
My reaction to your question is "who cares?" Your response indicates your lack of regard for the others who must share spectrum space with you. = On 1/25/2011 11:59 AM, briana wrote: > John, > > Fine in theory. Now tell me the power level I need to crack any given > pileup in a reasonable amount of time and I'll use it. __ 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
Re: [Elecraft] KPA500 - just 500 watts?
Hi John, I agree with some of what you said. There are times, especially on the lower bands, even with an antenna with gain that signals are very weak whether on CW or SSB. Sometimes 100W just doesn't make it happen. Having the capability to go to 1500W in these situations may make the difference between working a "new one" and not working the "new one". Many times we are at the mercy of the DX that we want to work. So having the ability of using higher power that we are allowed to use may make all the difference in the world. Usually in the winter my amp is ON even though I normally don't use it for casual operating. The darn 3 minute warm up has caused me to miss a new one such as Zone 19 on Topband a few years back when I heard him and could not work him on 160M with 100W. By the time the amp cycled ON he faded away. The amp is in the basement so no added heat or noise in the shack and most of the power while idling is for the filaments in the two tubes. This is one reason I would like to have a 1500W 160-6M solid-state amp in the basement. I could leave it off till I really needed it. By the way, there is nothing magic that you need a 6db difference to make the difference between making or not making a contact. When the DX is at the noise level much less than 6db gain could make all the difference. 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Ragle Sent: Tuesday, January 25, 2011 11:21 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 - just 500 watts? 1 S-unit is about 6 dB. To get an S-unit improvement over 500 watts (output) would require about 2 kW of output power. In comparison, even the simplest directional antenna is capable of producing at least 6 dB "gain." It seems to me that the QRO philosophy of "Stomp 'em into the Dust" is a poor substitute for operating skill. Moreover, it is probably even illegal in the sense that it constitutes deliberate interference with another's signals and a disdain for the rule that says that only enough power is to be used to maintain effective communication. There is a connection between this attitude and the impulse to communicate by voice methods, even to the resurgence of interest in broadcast quality AM transmission. These are all wasteful of spectrum space and energy resources. Digital modes are surely capable of more effective DX'ing with much lower power levels, and attention to antenna design and operating conditions would seem to be much more thoughtful and professional than the CB-like attitude which is now found on the phone bands. BPSKnn is suitable for chatting, and if your bag is "hello-goodbye," take a look at JT65-HF and what is possible with only a few watts of TX power. John Ragle -- W1ZI -- with almost 65 years of licensed experience in amateur radio... = On 1/25/2011 9:35 AM, Lee Buller wrote: > Got my flame suit on __ 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
John, Fine in theory. Now tell me the power level I need to crack any given pileup in a reasonable amount of time and I'll use it. The fact is that one doesn't know. The best way to lower the overall pileup QRM is to work the station quickly and QRT. The appropriate measure of QRM is energy not power. Energy is power times time. Pointing to WSJT isn't reasonable since the power level required is mode and mode bandwidth dependent. I've tried WSJT on HF and fell asleep during the 5+ minute exchange. It isn't a mode for everyone and every situation. Given that other modes can work the same station in 10 seconds, multiply the WSJT power by 60 to get the same amount of energy put into the atmosphere for one contact. So WSJT energy emitted /contact is more like a 120 watt xmitter in some other mode. 73 de Brian/K3KO On 1/25/2011 11:21 AM, John Ragle wrote: > 1 S-unit is about 6 dB. To get an S-unit improvement over 500 watts > (output) would require about 2 kW of output power. In comparison, even > the simplest directional antenna is capable of producing at least 6 dB > "gain." It seems to me that the QRO philosophy of "Stomp 'em into the > Dust" is a poor substitute for operating skill. Moreover, it is probably > even illegal in the sense that it constitutes deliberate interference > with another's signals and a disdain for the rule that says that only > enough power is to be used to maintain effective communication. > > There is a connection between this attitude and the impulse to > communicate by voice methods, even to the resurgence of interest in > broadcast quality AM transmission. These are all wasteful of spectrum > space and energy resources. Digital modes are surely capable of more > effective DX'ing with much lower power levels, and attention to antenna > design and operating conditions would seem to be much more thoughtful > and professional than the CB-like attitude which is now found on the > phone bands. BPSKnn is suitable for chatting, and if your bag is > "hello-goodbye," take a look at JT65-HF and what is possible with only a > few watts of TX power. > > John Ragle -- W1ZI -- with almost 65 years of licensed experience in > amateur radio... > > = > > On 1/25/2011 9:35 AM, Lee Buller wrote: > >> Got my flame suit on >> > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
> Speaking of dollars per watt, I'm presently using a homebrew pair of 813's > which produce > 800 watts (QSK but no 6M) and I have less than $400 into it. $0.50 dollars > per watt. Impressive, Vic. I would love to see some photos of your amp! In addition to the price/watt factor, perhaps equally important is a figure that takes into account price in relation to IMD in -dBc per $. Paul, W9AC __ 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
Re: [Elecraft] KPA500 - just 500 watts?
1 S-unit is about 6 dB. To get an S-unit improvement over 500 watts (output) would require about 2 kW of output power. In comparison, even the simplest directional antenna is capable of producing at least 6 dB "gain." It seems to me that the QRO philosophy of "Stomp 'em into the Dust" is a poor substitute for operating skill. Moreover, it is probably even illegal in the sense that it constitutes deliberate interference with another's signals and a disdain for the rule that says that only enough power is to be used to maintain effective communication. There is a connection between this attitude and the impulse to communicate by voice methods, even to the resurgence of interest in broadcast quality AM transmission. These are all wasteful of spectrum space and energy resources. Digital modes are surely capable of more effective DX'ing with much lower power levels, and attention to antenna design and operating conditions would seem to be much more thoughtful and professional than the CB-like attitude which is now found on the phone bands. BPSKnn is suitable for chatting, and if your bag is "hello-goodbye," take a look at JT65-HF and what is possible with only a few watts of TX power. John Ragle -- W1ZI -- with almost 65 years of licensed experience in amateur radio... = On 1/25/2011 9:35 AM, Lee Buller wrote: > Got my flame suit on __ 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
Re: [Elecraft] KPA500 - just 500 watts?
500 W (+) is the ideal output level for many operators and situations. Call it "medium" power, if you will -- but the KPA500 can get the job done, while taking up just a K3's worth of space on your desk. And you can pick it up and move it if you need to. 73, Wayne N6KR OK... Got my flame suit on __ 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
Re: [Elecraft] KPA500 - just 500 watts?
For me, 500 watts is just right. I work mostly CW and so far I have never even operated CW at more then 100 watts. There are times when I pick up a station that is so week it is a real struggle to copy. But, I do and I work that guy with my 100 watts and he hears me. I think at times 500 watts means I am pushing out more power then most of the stations that I hear. Sure, someone else could be working with power but I think that CW ops have a tendency to be operating at 100 watts or less. Oh, I never do contesting -- way too much commitment of time for me. When the contests hit, I am usually found on 30 meters. And, 500 watts probably does not bother the neighbors. I know 100 watts doesn't and I know 1000 watts does (sometimes). And, 1500 watts would definitely be a bother -- I would have to move to use it. 73, phil, K7PEH On Jan 25, 2011, at 7:25 AM, Pete Smith wrote: > I *think* I remember someone at Elecraft saying that it was more related > to the price point. I wonder, though, if it was also maybe making use > of engineering done on the 1500-watt prototype that never came out (one > of 3 amp modules, perhaps? I would have mortgaged my first-born for one > of those big ones, even at Alpha-like prices! > > 73, Pete N4ZR > > The World Contest Station Database, updated daily at www.conteststations.com > The Reverse Beacon Network at http://reversebeacon.net, blog at > reversebeacon.blogspot.com, > spots at telnet.reversebeacon.net, port 7000 > > > > On 1/25/2011 10:12 AM, Monty Shultes wrote: >> For me it's the difference between operation at 120 and 240 volts. I would >> have to add a circuit for a 1500 watt unit. >> >> Monty K2DLJ >> >> >>> >>> OK... >>> >>> Got my flame suit on >>> >>> Why just 500 watts with te KPA-500? Is that a majic number? I am just >>> asking. >>> It seems that 500 watts would be OK if you are on a DXpedition...but if you >>> are >>> in the "fray" of a contest in the USofAthe more watts the better. >>> >> __ >> 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 >> >> > __ > 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 __ 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
Re: [Elecraft] KPA500 - just 500 watts?
It's interesting that at least two prototypes existed: one each of the KPA-800 and KPA-1500. I saw them. Maybe there are more. I presume that Elecraft employees have them. I was told at the time that there were no serious technical problems, just that they were busy with the K3. Then I presume that marketing considerations led them to rethink the idea (my unprofessional guess is that they were right). But can you imagine how much one of those prototypes would fetch on EBay? Speaking of dollars per watt, I'm presently using a homebrew pair of 813's which produce 800 watts (QSK but no 6M) and I have less than $400 into it. $0.50 dollars per watt. On 1/25/2011 7:25 AM, Pete Smith wrote: > I *think* I remember someone at Elecraft saying that it was more related > to the price point. I wonder, though, if it was also maybe making use > of engineering done on the 1500-watt prototype that never came out (one > of 3 amp modules, perhaps? I would have mortgaged my first-born for one > of those big ones, even at Alpha-like prices! > > 73, Pete N4ZR -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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
Re: [Elecraft] KPA500 - just 500 watts?
I *think* I remember someone at Elecraft saying that it was more related to the price point. I wonder, though, if it was also maybe making use of engineering done on the 1500-watt prototype that never came out (one of 3 amp modules, perhaps? I would have mortgaged my first-born for one of those big ones, even at Alpha-like prices! 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 1/25/2011 10:12 AM, Monty Shultes wrote: > For me it's the difference between operation at 120 and 240 volts. I would > have to add a circuit for a 1500 watt unit. > > Monty K2DLJ > > >> >> OK... >> >> Got my flame suit on >> >> Why just 500 watts with te KPA-500? Is that a majic number? I am just >> asking. >> It seems that 500 watts would be OK if you are on a DXpedition...but if you >> are >> in the "fray" of a contest in the USofAthe more watts the better. >> > __ > 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 > > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
For me it's the difference between operation at 120 and 240 volts. I would have to add a circuit for a 1500 watt unit. Monty K2DLJ > > > OK... > > Got my flame suit on > > Why just 500 watts with te KPA-500? Is that a majic number? I am just > asking. > It seems that 500 watts would be OK if you are on a DXpedition...but if you > are > in the "fray" of a contest in the USofAthe more watts the better. > __ 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
Re: [Elecraft] KPA500 - just 500 watts?
In many countries the maximum permitted power is 400W (26dBW), Lee, so an amplifier with 500W maximum capability is ideal. An amplifier with any greater power will have a limited market. Over this side of the pond we tend to stick to our licence conditions ;-) 73 de David G4DMP In a recent message, Lee Buller writes >Why just 500 watts with te KPA-500? Is that a majic number? I am just >asking. >It seems that 500 watts would be OK if you are on a DXpedition...but if >you are >in the "fray" of a contest in the USofAthe more watts the better. -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ 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
[Elecraft] KPA500 - just 500 watts?
OK... Got my flame suit on Why just 500 watts with te KPA-500? Is that a majic number? I am just asking. It seems that 500 watts would be OK if you are on a DXpedition...but if you are in the "fray" of a contest in the USofAthe more watts the better. Don't get me wrong...I love the idea of the KPA500 and the KAT500. But what is majic about 500 watts when many amps will run much more than that and are a lot less money? Cost vs Please don't kill mejust...wondering what the big deal is! Lee - K0WA K3/100 with the AL-82 In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) __ 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
