[Elecraft] [K2] Has the k2 a future - not if you use Li-Po cells!
Hi Guys I have a mate, Ian VK3FFLY, who is into flying radio controlled models using Li-Po cells and they are very careful about the way they charge them - always in a metal box (not the radio cabinet!). Several of them have had fires from charging these cells. Ian suggests you have a look at http://www.rcgroups.com/forums/showthread.php?t=209187 Ian's son-in-law had a house fire in the last couple of months from a charging Li-Po - luckily he was home and the smoke alarm worked so he just had damage to the one room. Greg VK3VT Subject: Re: [Elecraft] [K2] Re： has the k2 a future? From: Leigh L. Klotz Jr WA5ZNU le...@wa5znu.org Date: Fri, 16 Oct 2009 11:15:58 -0700 (PDT) To: elecraft@mailman.qth.net Johnny, Do you have pictures posted? I remember when you started this project and I'd like to see how it worked out. Presonally I lean more toward LiFePO4; although they have a lower energy density than the Li-Po (though higher power density) they reportedly are safer in conditions of over/under charge and mechanical stress. Leigh/WA5ZNU Johnny Siu wrote: Hello Wayne, Yes, K2 is still my favourite field day and QRP rig and no others can bit it. I now have 3 x 3.7v 3300mAH Li-Po cells in the KBT2 and they work very well. 73 Johnny VR2XMC __ 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] [K2] Has the k2 a future - not if you use Li-Po cells!
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Re: [Elecraft] [K2] Has the k2 a future - not if you use Li-Po cells!
This is why I eventually decided to use AA NiMH cells instead when replacing the lead acid battery in my K2. I use 10 AAs in a pack, this gives me 2.5AH vs ~3AH for a small LiPo pack of similar mass. The LiPOs are fine but I will keep them outside the case so I can throw them somewhere if a fault occurs. I am sure computer packs are fine but I am wary of the RC type packs. The advantage of NiMH is they are easy to charge. They may fail faster but they are very cheap to replace. Mike -- View this message in context: http://n2.nabble.com/Has-the-k2-a-future-not-if-you-use-Li-Po-cells-tp3857944p3860431.html Sent from the [K2] 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] [K2] Has the k2 a future - not if you use Li-Po cells!
AD6XY wrote: This is why I eventually decided to use AA NiMH cells instead when replacing the lead acid battery in my K2. I use 10 AAs in a pack, this gives me 2.5AH vs ~3AH for a small LiPo pack of similar mass. The LiPOs are fine but I will keep them outside the case so I can throw them somewhere if a fault occurs. I am sure computer packs are fine but I am wary of the RC type packs. The advantage of NiMH is they are easy to charge. They may fail faster but they are very cheap to replace. Why didn't Elecraft choose NiMH cells for the KBT2 in the first place? There must have been a reason. - 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://n2.nabble.com/Has-the-k2-a-future-not-if-you-use-Li-Po-cells-tp3857944p3860579.html Sent from the [K2] 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] [K2] Has the k2 a future - not if you use Li-Po cells!
Julian, G4ILO wrote: Why didn't Elecraft choose NiMH cells for the KBT2 in the first place? There must have been a reason. One reason might be self discharge; SLA stay charged longer than NiMH. There are new longer-life NiMH cells these days, though. And the LiFePO4 and Lithium nano-phosphate cells as well. Leigh/WA5ZNU -- View this message in context: http://n2.nabble.com/Has-the-k2-a-future-not-if-you-use-Li-Po-cells-tp3857944p3861386.html Sent from the [K2] 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] [K2] has the k2 a future?
juergen piezo wrote: Anyway its a nice dream, however this radio would be the best selling radio in the world I would think. It would certainly make the new Hilberling look like very poor value for money Is there a new Hilberling (besides the canceled PT-8000)? http://www.eham.net/articles/19810 73, Bill -- View this message in context: http://n2.nabble.com/has-the-k2-a-future-tp3818052p3821760.html Sent from the [K2] 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] [K2] has the k2 a future?
--- On Wed, 10/14/09, Bill W4ZV btipp...@alum.mit.edu wrote: From: Bill W4ZV btipp...@alum.mit.edu Subject: Re: [Elecraft] [K2] has the k2 a future? To: elecraft@mailman.qth.net Date: Wednesday, October 14, 2009, 3:22 AM juergen piezo wrote: Anyway its a nice dream, however this radio would be the best selling radio in the world I would think. It would certainly make the new Hilberling look like very poor value for money Is there a new Hilberling (besides the canceled PT-8000)? Hi Bill Yes it will be manufactured by Telefunken, it was the talk of the town at Friedrichshafen 2009. Telefunken Racoms will be producing the Hilberling transceiver. Its splattered all over web. John http://www.eham.net/articles/19810 73, Bill -- View this message in context: http://n2.nabble.com/has-the-k2-a-future-tp3818052p3821760.html Sent from the [K2] 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] [K2] has the k2 a future?
The K2 is a very mature product, and I don't anticipate adding further internal modules to it. I've thought about a Li-Ion battery as a replacement for the present gel-cell, but it's still too expensive and is thus left as an exercise for the reader. The P3 should work with the K2, though less tightly integrated than with the K3. If that pans out, we'll post details later. We have no plans to phase out the K2, which is still going strong after 10 years (for which we thank our customers!). 73, Wayne N6KR I´m still very happy with my K2 and when I bought the K3 I thought, that I´d have to sell one of my other rigs.In fact, I don´t want to sell one of them and I´ll certainly keep the K2. If the NB is redesigned, this rig will almost be perfect for my needs.(the K3 and IC 761 have got much better noise blankers!) 73, Chris-OE5CSP -- View this message in context: http://n2.nabble.com/has-the-k2-a-future-tp3818052p3822142.html Sent from the [K2] 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] [K2] has the k2 a future?
juergen piezo wrote: I would think that the phase noise limitations of the K2's design would limit its appeal. I don't think most people looking at the K2 are that concerned about state of the art performance. The K2's main qualities are small size, low weight and low power consumption which make it an ideal portable radio. It is superior in many respects to the many small mobile/portable rigs like the IC706 series, FT-897 etc. that many hams on a budget use as base stations, which performance limitations in many respects worse than the K2. For many years at the start of this decade people used to say what a great receiver the K2 had. I don't think the phase noise limitations, whatever they are, are such a big deal for most prospective users. For those it does matter to, there is the K3. I would be more interested in a K3-Junior [snip] What you listed there looks more like a spec of a K4 to me. - 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://n2.nabble.com/has-the-k2-a-future-tp3818052p3822518.html Sent from the [K2] 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] [K2] has the k2 a future?
Dear elecraft -team, during the last 2 years all new modules and software updates had been designed for the K3. Is the K2 out of the focus or is there a chance for all the K2 users to get new modules and upgrades in the future ? vy 73 Michael, DC0ZO __ 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] [K2] has the k2 a future?
wayne burdick wrote: The K2 is a very mature product, and I don't anticipate adding further internal modules to it. I've thought about a Li-Ion battery as a replacement for the present gel-cell, but it's still too expensive and is thus left as an exercise for the reader. The P3 should work with the K2, though less tightly integrated than with the K3. If that pans out, we'll post details later. We have no plans to phase out the K2, which is still going strong after 10 years (for which we thank our customers!). The K2 fills a unique role, and it's the only full function transceiver you can build from through hole components (its only rival is the JUMA TRX2 from Finland which is made with SMT and it is more money for less functionality.) Although you don't anticipate adding more modules to it there might be a demand for an official version of the last digital interface board that was designed by the late Pauli Nunez EA3BLQ. Since a Li-Ion battery option isn't on the cards I suppose I'd better start thinking about replacing my old gel-cell - 10 years old and still holding a charge. Is this a record? - 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://n2.nabble.com/has-the-k2-a-future-tp3818052p3819022.html Sent from the [K2] 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] [K2] has the k2 a future?
On Oct 13, 2009, at 5:19 PM, Julian, G4ILO wrote: Although you don't anticipate adding more modules to it there might be a demand for an official version of the last digital interface board that was designed by the late Pauli Nunez EA3BLQ. Since a Li-Ion battery option isn't on the cards I suppose I'd better start thinking about replacing my old gel-cell - 10 years old and still holding a charge. Is this a record? Yes, I'd be in for one of these. Perhaps Elecraft could produce and sell them, donating a portion of the profit to Pauli's family or a charity of their choice? --phil__ 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
