QRP
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On 6/18/2013 12:26 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
> Of course it is legal to buy these foreign amps as far as I can tell. But it is NOT LEGAL TO USE THEM if they do not comply with Part 97, which requires that the transmitted signal comply with good amateur practice with respect to occupied bandwidth and spurious trash. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Peter Lambert
To ALL,
Agreed, we should have "clean" signals as there is a plethora of "lids" who are only interested in getting the absolute amount of power out of ANY amplifier, be they simple, or super fancy. Too many GOOD amps are overdriven and cause a lot of trouble on the band they are used on, let alone the harmonic by products. Technically the regulations in a round about way say an SSB signal should be limited to a 3 Khz bandwidth MAX! There are way too many "hi fi" broadcast lids and such that seem to delight in putting their garbage into the next 3 khz channel up or down from the QSO they are in! Politeness seems to have vanished from amateur radio at times! NOTHING that the FCC writes into regulations, or forces the manufacturers to include in their products will eliminate the common mule headed "LID" operator. In my humble opinion, the ONLY way to properly tune a SSB linear amplifier up correctly, is by the "two tone method". You will get the MOST talk power and cleanest signal this way with no guessing. 73, Sandy W5TVW -----Original Message----- From: Peter Lambert Sent: Tuesday, June 18, 2013 2:42 PM To: [hidden email] ; [hidden email] Subject: Re: [Elecraft] QRP I think we ALL have an obligation to ensure our TX output is clean. We ALL share in the harmful results if we don't in the form of QRM that we complain about every day. These cheap amps have little or no output filtering and most do not have any real semblance of ALC making it very easy to overdrive them. The performance of all the Elecraft gear in this regard (and it's equivalent in receive) is stunningly good and in my opinion worth every damn cent. Best regards to the team at Elecraft for their efforts in making truly great quality gear !. It seems perfectly logical that a KX3 and 100W map should be around the same price as a K3-100. 73's Peter VK4JD -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Tom H Childers Sent: Wednesday, 19 June 2013 5:33 AM To: [hidden email] Subject: Re: [Elecraft] QRP What I thought was interesting was that for most of the models there were only one to three in stock. That makes me think they are selling like hot-cakes to the CB market, or they are trying to get rid of them. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Tue, 18 Jun 2013 11:27:36 -0700, Richard Thorpe <[hidden email]> wrote: >QRP is looking better, I looked at the out the door price of the Elecraft 100W amp with tuner. Ouch! around $1300.00 bucks with tax and shipping I was imagining around $600.00 I'm way out of step. Yikes! a hundred watt KX3 is close to the price of a 100 watt K3. > >K6CG >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[hidden email] > >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:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3345 / Virus Database: 3199/6420 - Release Date: 06/18/13 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Rick McClelland, AA5S
OK, but this one doesn't count as an option. Not if you can't use it without breaking the
law and spoiling the band for everyone in range of your signal. On 6/18/2013 11:47 AM, Rick McClelland, AA5S wrote: > Yes, all that is true, but the point is there are less expensive amplifiers > available. > > > On Tue, Jun 18, 2013 at 12:44 PM, Walter Underwood <[hidden email]>wrote: > >> Maybe because the description of the KL500V says "This amp does not work >> well with Flex or KX3." >> >> And because the amp is not certified for US amateur radio, despite the >> headline. The description says, "These units are for industrial, >> scientific, medical, or export use only." >> >> Finally, it does not appear to have any output filtering at all. >> >> wunder >> K6WRU >> >> -- 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Jim Brown-10
On 6/18/2013 1:04 PM, Jim Brown wrote:
> On 6/18/2013 12:26 PM, Eric Swartz - WA6HHQ, Elecraft wrote: >> Of course it is legal to buy these foreign amps as far as I can tell. > > But it is NOT LEGAL TO USE THEM if they do not comply with Part 97, > which requires that the transmitted signal comply with good amateur > practice with respect to occupied bandwidth and spurious trash. The RM Italy amps appear to cover 11m ... that may be where they originated. My increasingly imperfect memory reminds me [maybe incorrectly] that in the US, it is illegal to market, sell, advertise, or posses such an amplifier, even if you don't use it. Right? 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Take a look at the RMI KLA300Plus. It has full individual band filters and is sold here in the US. I use it with my FT817 mobile.
Mel, K6KBE ________________________________ From: Fred Jensen <[hidden email]> To: [hidden email] Sent: Tuesday, June 18, 2013 2:51 PM Subject: Re: [Elecraft] QRP On 6/18/2013 1:04 PM, Jim Brown wrote: > On 6/18/2013 12:26 PM, Eric Swartz - WA6HHQ, Elecraft wrote: >> Of course it is legal to buy these foreign amps as far as I can tell. > > But it is NOT LEGAL TO USE THEM if they do not comply with Part 97, > which requires that the transmitted signal comply with good amateur > practice with respect to occupied bandwidth and spurious trash. The RM Italy amps appear to cover 11m ... that may be where they originated. My increasingly imperfect memory reminds me [maybe incorrectly] that in the US, it is illegal to market, sell, advertise, or posses such an amplifier, even if you don't use it. Right? 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Re: QRP and "amplifiers" for same.
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In reply to this post by w5tvw
On 6/18/2013 1:30 PM, Sandy Blaize wrote:
> Politeness seems to have vanished from amateur radio at times! Politeness seems to have vanished from the world at times. Amateur Radio is no different. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Phil Hystad-3
Just for what it's worth.....
I assume most of us talking about the KXPA100 have KX3's -- and that we chose the KX3 over the FT-817. I started looking at the FT-817, and jumped pretty quickly to the KX3, even though adding all the options (except the paddles) made the KX3 more than a bit more expensive. The amp looks good. -- Lynn On 6/18/2013 12:55 PM, Phil Hystad wrote: > It looks like the KXPA100 is priced fairly among market peers. And then, added to that is the gold seal quality of Elecraft. Maybe the perception of a lower price is the main fault here. I will probably not get this amplifier right away since I prefer QRP with the KX3. I do have the KPA500 and I think that the KX3 can drive that to a reasonable QRO signal. Haven't tried that yet though. > > PEH's iPad > > On Jun 18, 2013, at 12:49 PM, Walter Underwood <[hidden email]> wrote: > >> The Ten-Tec and the Elecraft are very close in price. >> >> Ten-Tec 418: $785 >> Elecraft KXPA100: $749 (assembled) >> >> wunder >> K6WRU >> >> On Jun 18, 2013, at 12:38 PM, Doug Turnbull wrote: >> >>> Dear OMs and Yls, >>> I do not wish to be a traitor but perhaps the Ten-Tec model 418 at $800 >>> and an external antenna tuner if required is more affordable. I will use >>> my K3 for QRO and so am not too bothered but this amplifier is pricy. Then >>> again Elecraft is the new Collins. >>> >>> The Italian amplifier mentioned is not something I would want near me. >>> I am not knocking Italian equipment as I have an Expert 2K - FA which I >>> like. The KL amplifier though is a no no. >>> >>> 73 Doug EI2CN >>> >>> -----Original Message----- >>> From: [hidden email] >>> [mailto:[hidden email]] On Behalf Of Jim Brown >>> Sent: 18 June 2013 18:49 >>> To: [hidden email] >>> Subject: Re: [Elecraft] QRP >>> >>> On 6/18/2013 11:27 AM, Richard Thorpe wrote: >>>> 100W amp with tuner. Ouch! around $1300.00 >>> My arithmetic says $1,000 as kits for the amp and tuner. +$100 factory >>> built. These kits are so simple, and the components are factory tested, >>> so it's silly not to take advantage of the discount. Likewise, the KX3 >>> is $900 as a kit. If you're going to backpack with it or use it with >>> random wires, you'll want the QRP tuner, $170, and the paddle $130. >>> >>> Add the cost of the KX3 and it's still a LOT less than a K3, AND you >>> have both a world class 100W transceiver, a world class 10W rig for >>> backpacking, or to throw in your carry-on for various trips. And you >>> can use the KX3 as a "mobile head" with the 100W amp buried in the trunk >>> or under a seat. Or you can put the KX3 on a desktop and the 100W amp >>> under the desk. >>> >>> 73, Jim K9YC >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> 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:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >> -- >> Walter Underwood >> [hidden email] >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> 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:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Well I have had a long think about the KX3 and all the accessories. I tried
to be objective and of course I had to consider all my priorities and operating habits. The end result being I sold the KX3 yesterday and will stick with my much used K-Line. Elecraft make terrific gear but not everything they produce is a perfect match for everyone. Some base their choices on cost while others don't. Many of us dive in simply because of the quality and support and they go hand in hand. To me, that is the primary reason I don't shop other brands but of course that is my decision. 73 Gary On 19 June 2013 10:31, Lynn W. Taylor, WB6UUT <[hidden email]>wrote: > Just for what it's worth..... > > I assume most of us talking about the KXPA100 have KX3's -- and that we > chose the KX3 over the FT-817. > > I started looking at the FT-817, and jumped pretty quickly to the KX3, > even though adding all the options (except the paddles) made the KX3 more > than a bit more expensive. > > The amp looks good. > > -- Lynn > > On 6/18/2013 12:55 PM, Phil Hystad wrote: > >> It looks like the KXPA100 is priced fairly among market peers. And then, >> added to that is the gold seal quality of Elecraft. Maybe the perception >> of a lower price is the main fault here. I will probably not get this >> amplifier right away since I prefer QRP with the KX3. I do have the KPA500 >> and I think that the KX3 can drive that to a reasonable QRO signal. >> Haven't tried that yet though. >> >> PEH's iPad >> >> On Jun 18, 2013, at 12:49 PM, Walter Underwood <[hidden email]> >> wrote: >> >> The Ten-Tec and the Elecraft are very close in price. >>> >>> Ten-Tec 418: $785 >>> Elecraft KXPA100: $749 (assembled) >>> >>> wunder >>> K6WRU >>> >>> On Jun 18, 2013, at 12:38 PM, Doug Turnbull wrote: >>> >>> Dear OMs and Yls, >>>> I do not wish to be a traitor but perhaps the Ten-Tec model 418 at >>>> $800 >>>> and an external antenna tuner if required is more affordable. I will >>>> use >>>> my K3 for QRO and so am not too bothered but this amplifier is pricy. >>>> Then >>>> again Elecraft is the new Collins. >>>> >>>> The Italian amplifier mentioned is not something I would want near >>>> me. >>>> I am not knocking Italian equipment as I have an Expert 2K - FA which I >>>> like. The KL amplifier though is a no no. >>>> >>>> 73 Doug EI2CN >>>> >>>> -----Original Message----- >>>> From: [hidden email].**net<[hidden email]> >>>> [mailto:elecraft-bounces@**mailman.qth.net<[hidden email]>] >>>> On Behalf Of Jim Brown >>>> Sent: 18 June 2013 18:49 >>>> To: [hidden email] >>>> Subject: Re: [Elecraft] QRP >>>> >>>> On 6/18/2013 11:27 AM, Richard Thorpe wrote: >>>> >>>>> 100W amp with tuner. Ouch! around $1300.00 >>>>> >>>> My arithmetic says $1,000 as kits for the amp and tuner. +$100 factory >>>> built. These kits are so simple, and the components are factory tested, >>>> so it's silly not to take advantage of the discount. Likewise, the KX3 >>>> is $900 as a kit. If you're going to backpack with it or use it with >>>> random wires, you'll want the QRP tuner, $170, and the paddle $130. >>>> >>>> Add the cost of the KX3 and it's still a LOT less than a K3, AND you >>>> have both a world class 100W transceiver, a world class 10W rig for >>>> backpacking, or to throw in your carry-on for various trips. And you >>>> can use the KX3 as a "mobile head" with the 100W amp buried in the trunk >>>> or under a seat. Or you can put the KX3 on a desktop and the 100W amp >>>> under the desk. >>>> >>>> 73, Jim K9YC >>>> ______________________________**______________________________**__ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft> >>>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm> >>>> Post: mailto:[hidden email].**net <[hidden email]> >>>> >>>> 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<http://mailman.qth.net/mailman/listinfo/elecraft> >>>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm> >>>> Post: mailto:[hidden email].**net <[hidden email]> >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> >>> -- >>> Walter Underwood >>> [hidden email] >>> >>> >>> >>> ______________________________**______________________________**__ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft> >>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm> >>> Post: mailto:[hidden email].**net <[hidden email]> >>> >>> 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<http://mailman.qth.net/mailman/listinfo/elecraft> >> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm> >> Post: mailto:[hidden email].**net <[hidden email]> >> >> 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<http://mailman.qth.net/mailman/listinfo/elecraft> > Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm> > Post: mailto:[hidden email].**net <[hidden email]> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
On 6/18/2013 5:31 PM, Lynn W. Taylor, WB6UUT wrote:
> I started looking at the FT-817, and jumped pretty quickly to the KX3, > even though adding all the options (except the paddles) made the KX3 > more than a bit more expensive. There are many important differences between the FT-817 and the KX3. The FT-817 is a cheap QRP radio with lots of phase noise and a receiver that overloads easily. The KX3 is a world class QRP radio that's clean enough to drive an amplifier to legal limit power without throwing trash around to your neighbors, and with a receiver that won't get blown away by a big signal a block or so away. And when you add the 100W amp, you've got one of the finest 100W rigs you can buy. In addition to all its other features. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On 6/18/2013 5:48 PM, Jim Brown wrote:
> There are many important differences between the FT-817 and the KX3. Exactly. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Lets end this thread at this time in the interest of reducing list
volume overload. Its past the single topic max posting threshold. 73, Eric Elecraft List modulator elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Re: Thoughts on the KXPA100 [was: QRP]
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In reply to this post by wayne burdick
At 02:55 PM 6/18/2013, Wayne Burdick wrote:
>Many competing 100-W amps don't cover 160-6 meters, or don't make it >to 100 W on 6 meters. Many have poor IMD performance on some bands >(we bought one of each and tested them in our lab; some were truly >awful). None of them offer a companion internal ATU. > > >73, >Wayne >N6KR Hi, A very nice looking amp. A few questions: I assume from the detail description that the KXPA100 face plate sans the built in ATU would have just the upper row of lights, Power out, ATT, TX, ON .... and the OFF/ON slide switch. I assume that the sans built in ATU version would automatically bypass the amp when in the OFF position. I also assume that the attenuation, ATT light is activated automatically as is the band selection. At what power level will the automatically switched ATT kick in? At the moment my favorite antenna tuner (manual) is the ezee match which is very easy to tune and has 2 separate antenna inputs. Physically the KXPA100 would fit very nicely on top of the AT case (exactly 6 in wide and 12 in deep). I assume, that should I wish to add the built in ATU in the future that it would include a new faceplate with the added lights and buttons. Thanks 73 Jim, VE3CI ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Rick McClelland, AA5S
Better check the writeup. It says that the amp will not work with the Flex or KX3.
73, Barry K3NDM ----- Original Message ----- From: "Rick McClelland, AA5S" <[hidden email]> To: "Richard Thorpe" <[hidden email]> Cc: "Elecraft Discussion List" <[hidden email]> Sent: Tuesday, June 18, 2013 2:37:20 PM Subject: Re: [Elecraft] QRP Why spend more when you could spend less? http://www.amazon.com/RM-Italy-KL-linear-amplifier/dp/B00CBRWIM8/ref=pd_sim_sbs_e_1 On Tue, Jun 18, 2013 at 12:27 PM, Richard Thorpe <[hidden email]> wrote: > QRP is looking better, I looked at the out the door price of the Elecraft > 100W amp with tuner. Ouch! around $1300.00 bucks with tax and shipping I > was imagining around $600.00 I'm way out of step. Yikes! a hundred watt KX3 > is close to the price of a 100 watt K3. > > K6CG > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Rick McClelland, AA5S Fort Collins, CO ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Richard Thorpe-2
At $750, with the features included, this is a very competitive
price. What I am hearing on the street is the Italian RM amps are pure junk (do not meet FCC spec's). I would never mate my fine K3 or KX3 with one. Many of you know I have been trying to come up with a "cheap" amp to fit the low-cost amplifier "niche". After a year of work the best price I can offer is $525. When I heard the KXPA100 would be $749, I knew my market was gone. I brought a prototype to Dayton and was basically ignored. I can say it has been fun to go thru development and it has been educational. I am sure Wayne and Eric recognize much of this from their experience starting out in the QRP market. At this point I have no expectation of selling much. So I will switch gears to try my hand at developing a 630m transverter for the new ham band at 472-479 KHz. At this point it is still an experimental band. PS: I am still working out bugs on the six-band LP filter. I have built one 300w and one 140w CCI kit. I am running the 300w amp in my station quite successfully. When the LP filter is completed and installed, I will sell my prototype 110w amp (de-rated from 140w). 73, Ed - KL7UW http://www.kl7uw.com [hidden email] "Kits made by KL7UW" ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Can anyone comment on the comparisons with the sub 100 watt amps such as the:
THP HL45B ~ $450 for 45 watts Hardrock50 ~ $259 for ~ 50 watts HFPacker in terms of signal quality and features? As far as I know the HL45B does band switching only with the FT817. For all the other rigs, the band switching has to be manually done. Ditto, the Hardrock50, which also has not gotten FCC certification (yet). Ariel NY4G Sent from my iPad On Jun 19, 2013, at 3:44 AM, "Edward R Cole" <[hidden email]> wrote: > At $750, with the features included, this is a very competitive price. What I am hearing on the street is the Italian RM amps are pure junk (do not meet FCC spec's). I would never mate my fine K3 or KX3 with one. > > Many of you know I have been trying to come up with a "cheap" amp to fit the low-cost amplifier "niche". After a year of work the best price I can offer is $525. When I heard the KXPA100 would be $749, I knew my market was gone. > > I brought a prototype to Dayton and was basically ignored. I can say it has been fun to go thru development and it has been educational. I am sure Wayne and Eric recognize much of this from their experience starting out in the QRP market. > > At this point I have no expectation of selling much. So I will switch gears to try my hand at developing a 630m transverter for the new ham band at 472-479 KHz. At this point it is still an experimental band. > > PS: I am still working out bugs on the six-band LP filter. I have built one 300w and one 140w CCI kit. I am running the 300w amp in my station quite successfully. When the LP filter is completed and installed, I will sell my prototype 110w amp (de-rated from 140w). > > 73, Ed - KL7UW > http://www.kl7uw.com > [hidden email] > "Kits made by KL7UW" > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Re: Thoughts on the KXPA100 [was: QRP]
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In reply to this post by Jim Dunstan
Hi Jim,
Answers below. Eric elecraft.com _..._ On Jun 18, 2013, at 6:23 PM, Jim Dunstan <[hidden email]> wrote: > At 02:55 PM 6/18/2013, Wayne Burdick wrote: > > >> Many competing 100-W amps don't cover 160-6 meters, or don't make it to 100 W on 6 meters. Many have poor IMD performance on some bands (we bought one of each and tested them in our lab; some were truly awful). None of them offer a companion internal ATU. >> >> >> 73, >> Wayne >> N6KR > > Hi, > > A very nice looking amp. A few questions: > > I assume from the detail description that the KXPA100 face plate sans the built in ATU would have just the upper row of lights, Power out, ATT, TX, ON .... and the OFF/ON slide switch. > > I assume that the sans built in ATU version would automatically bypass the amp when in the OFF position. Yes > > I also assume that the attenuation, ATT light is activated automatically as is the band selection. Yes > > At what power level will the automatically switched ATT kick in? I believe at 7W, but I'll confirm this. > > At the moment my favorite antenna tuner (manual) is the ezee match which is very easy to tune and has 2 separate antenna inputs. Physically the KXPA100 would fit very nicely on top of the AT case (exactly 6 in wide and 12 in deep). > > I assume, that should I wish to add the built in ATU in the future that it would include a new faceplate with the added lights and buttons. Correct. > > Thanks > > 73 > Jim, VE3CI > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Barry K3NDM
I am a very satisfied owner of both a K3 ( with a KPA 500 and KAT 500) and a KX3. I decided to order and build a PA-100D linear from JUMA Radio as a surface mount kit. It is a very compact linear which will produce up to 150 watts out with between 3 and 10 watts drive. It is well filtered and from tests I have done has a very clean output. Using my KX3 As a 2 tone generator I measured 2nd order distortion of better then -28 db. The JUMA engineers measured greater then -33 db with 90 watts out using calibrated lab equipment. With the new firmware it will work with the rs232 from the KX3 and other rigs so will select the proper output filter (switch bands) or you can use RF detect or manually select the band. It is crammed with safety interlocks and protection circuitry. If I want to run more power I use the output of the JUMA linear to drive my Heathkit SB 220. I have received excellent reports from many stations, many with K3/P3 and Flex Radios that could see my output. It
does use a cooling fan on the heat sink but is very quiet. Running PSK31 using the linear with 30 watts out the fan never got to full speed. This kit is 450 euros ($600.00 USD) so it's not cheap. Is it as good as the new Elecraft KXPA 100? Probably not and it doesn't cover 6 meters. But if you like a challenge and want a good linear to boot then check out WWW.JUMARADIO.COM. I have no relationship with JUMA but enjoy the linear. 73 Dave KD1NA Sent from my iPad On Jun 18, 2013, at 10:28 PM, [hidden email] wrote: > Better check the writeup. It says that the amp will not work with the Flex or KX3. > > 73, > Barry > K3NDM > > ----- Original Message ----- > From: "Rick McClelland, AA5S" <[hidden email]> > To: "Richard Thorpe" <[hidden email]> > Cc: "Elecraft Discussion List" <[hidden email]> > Sent: Tuesday, June 18, 2013 2:37:20 PM > Subject: Re: [Elecraft] QRP > > Why spend more when you could spend less? > http://www.amazon.com/RM-Italy-KL-linear-amplifier/dp/B00CBRWIM8/ref=pd_sim_sbs_e_1 > > > On Tue, Jun 18, 2013 at 12:27 PM, Richard Thorpe <[hidden email]> wrote: > >> QRP is looking better, I looked at the out the door price of the Elecraft >> 100W amp with tuner. Ouch! around $1300.00 bucks with tax and shipping I >> was imagining around $600.00 I'm way out of step. Yikes! a hundred watt KX3 >> is close to the price of a 100 watt K3. >> >> K6CG >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > > > -- > Rick McClelland, AA5S > Fort Collins, CO > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Dave,
Interesting. The fan and lack of internal tuner would not be my choice. Looks very, very nice, though. 73, Bill K9YEQ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Dave's Gmail Account Sent: Wednesday, June 19, 2013 4:02 PM To: [hidden email] Cc: Richard Thorpe; Elecraft Discussion List Subject: Re: [Elecraft] QRP I am a very satisfied owner of both a K3 ( with a KPA 500 and KAT 500) and a KX3. I decided to order and build a PA-100D linear from JUMA Radio as a surface mount kit. It is a very compact linear which will produce up to 150 watts out with between 3 and 10 watts drive. It is well filtered and from tests I have done has a very clean output. Using my KX3 As a 2 tone generator I measured 2nd order distortion of better then -28 db. The JUMA engineers measured greater then -33 db with 90 watts out using calibrated lab equipment. With the new firmware it will work with the rs232 from the KX3 and other rigs so will select the proper output filter (switch bands) or you can use RF detect or manually select the band. It is crammed with safety interlocks and protection circuitry. If I want to run more power I use the output of the JUMA linear to drive my Heathkit SB 220. I have received excellent reports from many stations, many with K3/P3 and Flex Radios that could see my output. It does use a cooling fan on the heat sink but is very quiet. Running PSK31 using the linear with 30 watts out the fan never got to full speed. This kit is 450 euros ($600.00 USD) so it's not cheap. Is it as good as the new Elecraft KXPA 100? Probably not and it doesn't cover 6 meters. But if you like a challenge and want a good linear to boot then check out WWW.JUMARADIO.COM. I have no relationship with JUMA but enjoy the linear. 73 Dave KD1NA Sent from my iPad On Jun 18, 2013, at 10:28 PM, [hidden email] wrote: > Better check the writeup. It says that the amp will not work with the Flex or KX3. > > 73, > Barry > K3NDM > > ----- Original Message ----- > From: "Rick McClelland, AA5S" <[hidden email]> > To: "Richard Thorpe" <[hidden email]> > Cc: "Elecraft Discussion List" <[hidden email]> > Sent: Tuesday, June 18, 2013 2:37:20 PM > Subject: Re: [Elecraft] QRP > > Why spend more when you could spend less? > http://www.amazon.com/RM-Italy-KL-linear-amplifier/dp/B00CBRWIM8/ref=p > d_sim_sbs_e_1 > > > On Tue, Jun 18, 2013 at 12:27 PM, Richard Thorpe <[hidden email]> wrote: > >> QRP is looking better, I looked at the out the door price of the >> Elecraft 100W amp with tuner. Ouch! around $1300.00 bucks with tax >> and shipping I was imagining around $600.00 I'm way out of step. >> Yikes! a hundred watt KX3 is close to the price of a 100 watt K3. >> >> K6CG >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html >> > > > > -- > Rick McClelland, AA5S > Fort Collins, CO > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Dave KD1NA
The PA1000 by Juma looks even better:
http://www.jumaradio.com/juma-pa1000/ On 6/19/2013 4:02 PM, Dave's Gmail Account wrote: > I am a very satisfied owner of both a K3 ( with a KPA 500 and KAT 500) and a KX3. I decided to order and build a PA-100D linear from JUMA Radio as a surface mount kit. It is a very compact linear which will produce up to 150 watts out with between 3 and 10 watts drive. It is well filtered and from tests I have done has a very clean output. Using my KX3 As a 2 tone generator I measured 2nd order distortion of better then -28 db. The JUMA engineers measured greater then -33 db with 90 watts out using calibrated lab equipment. With the new firmware it will work with the rs232 from the KX3 and other rigs so will select the proper output filter (switch bands) or you can use RF detect or manually select the band. It is crammed with safety interlocks and protection circuitry. If I want to run more power I use the output of the JUMA linear to drive my Heathkit SB 220. I have received excellent reports from many stations, many with K3/P3 and Flex Radios that could see my > output. It > does use a cooling fan on the heat sink but is very quiet. Running PSK31 using the linear with 30 watts out the fan never got to full speed. > > This kit is 450 euros ($600.00 USD) so it's not cheap. Is it as good as the new Elecraft KXPA 100? Probably not and it doesn't cover 6 meters. But if you like a challenge and want a good linear to boot then check outWWW.JUMARADIO.COM. I have no relationship with JUMA but enjoy the linear. > > 73 > > Dave KD1NA > > Sent from my iPad > > On Jun 18, 2013, at 10:28 PM,[hidden email] wrote: > >> Better check the writeup. It says that the amp will not work with the Flex or KX3. >> >> 73, >> Barry >> K3NDM >> >> ----- Original Message ----- >> From: "Rick McClelland, AA5S"<[hidden email]> >> To: "Richard Thorpe"<[hidden email]> >> Cc: "Elecraft Discussion List"<[hidden email]> >> Sent: Tuesday, June 18, 2013 2:37:20 PM >> Subject: Re: [Elecraft] QRP >> >> Why spend more when you could spend less? >> http://www.amazon.com/RM-Italy-KL-linear-amplifier/dp/B00CBRWIM8/ref=pd_sim_sbs_e_1 >> >> >> On Tue, Jun 18, 2013 at 12:27 PM, Richard Thorpe<[hidden email]> wrote: >> >>> QRP is looking better, I looked at the out the door price of the Elecraft >>> 100W amp with tuner. Ouch! around $1300.00 bucks with tax and shipping I >>> was imagining around $600.00 I'm way out of step. Yikes! a hundred watt KX3 >>> is close to the price of a 100 watt K3. >>> >>> K6CG >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home:http://mailman.qth.net/mailman/listinfo/elecraft >>> Help:http://mailman.qth.net/mmfaq.htm >>> Post:mailto:[hidden email] >>> >>> This list hosted by:http://www.qsl.net >>> Please help support this email list:http://www.qsl.net/donate.html >>> >> >> -- >> Rick McClelland, AA5S >> Fort Collins, CO >> ______________________________________________________________ >> Elecraft mailing list >> Home:http://mailman.qth.net/mailman/listinfo/elecraft >> Help:http://mailman.qth.net/mmfaq.htm >> Post:mailto:[hidden email] >> >> 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:[hidden email] > > This list hosted by:http://www.qsl.net > Please help support this email list:http://www.qsl.net/donate.html > -- 73, Gary K9GS Greater Milwaukee DX Association:http://www.gmdxa.org Society of Midwest Contesters:http://www.w9smc.com CW Ops #1032http://www.cwops.org ************************************************ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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