[Elecraft] WTB: Elecraft XG3
Hi guys, I'm looking for someone who wants to sell his XG3 RF Signal Source. The XG3 needs to be in good conditions and -of course- 100% operational. Please reply off-list with the requested price and shipping costs to Italy. Thanks, Ciao Fabio IZ4AFW / IO4W / NZ1W __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
On 7/20/2014 10:32 PM, Wes (N7WS) wrote: Not if exchanging call signs takes 10 minutes instead of ten seconds. There are excellent reasons for QRP. As chance would have it, I spent an hour or two today at the NCDXC club picnic chatting with AF6RT, who spent Friday and Saturday lighting up a very rare grid on 6M (CM79, I think) that involves lots of hiking over rough terrain carrying your gear, then making additional round trips to get more gear. The hike is on the order of 2-3 hours one way. He's not a CW op, and he said he ran down his batteries calling CQ. The objective is to pass out this very rare grid (99.99% is water) to those pursuing the Fred Fish Award to work all grids in the US. One of my suggestions was to encourage him to use JT9 (24dB of noise rejection referenced to a 2.8 kHz bandwidth) and a strategy where he announces (on the Ping Jockey JT65 chat) a JT9 window where the deserving will call him, and he will respond only to those who he hears. W7GJ/KH8 is successfully using this strategy on a moon-bounce expedition to American Samoa. I also suggested that he try to use the KX3 barefooot when the indicated S/N is better than about -10 dB, and use only enough amp to make the Q. The objective, of course, is to minimize current drain, and thus maximize operating time. The WSJT-X software has a multii-decoder, and gives a readout of the S/N for each signal it copies. I also encouraged him to replace his K3 with a KX3 and KXPA100, because of the KX3's greatly reduced current drain on RX (250 mA as opposed to about 1A for a K3). I'm looking at Li-Ion battery packs that we might pitch in and buy for him, and that raises a few questions for Wayne. I can find nice Li-Ion packs with 3 cells (11.1V nominal) or 4 cells (14.8V nominal). 1) Can the KXPA100 and KX3 tolerate the higher voltages of a fully charged 14.8V battery pack? (In the range of 16V). 2) Do the KX3 or KX3 pull proportionally less current for the same power output from a 4-cell pack as compared to a 3-cell pack? 3) I'm seeing some 20Ah packs rated for a max of 10A and 14A load current, with active protection to limit the current to those levels. How would the KXPA100 react to that, if he wanted to run 40-50W? 4) Where can we access a graph of KXPA100 load current vs. 6M power out, not considering tolerances from one piece to another? 5) Am I correct that a KX3 does not benefit from an outboard preamp in this application? That is, a very quiet QTH, he's current starved, the guys who want to work him have power and big antennas (but probably more RX noise), and he's got to fight for every dB. Weight for a K3 as compared to a KX3 + KXPA100 is about equal, especially when interconnect cables are taken into account. The advantage is current drain, and is a big deal if 90% of your time is RX. He's already carrying a very nice M-Squared antenna and mast to hold it, and LMR-400 to feed it. Those reading the mail should appreciate this as a very practical engineering problem. :) We don't need fast response on this -- thanks to work commitments, his next window of opportunity is Memorial Day 2015. :) 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 Message delivered to arch...@mail-archive.com
[Elecraft] [K3] UPS for K3
Is it overkill to power my Astron RS-35 power supply that runs my K3 from a UPS? I am looking at a CyberPower CST1300AL from Costco (http://tinyurl.com/pajlsav) . It produces a "modified sine wave" when the primary power has been lost, which is true of most UPS models. I'm usually home so the plan is to turn the K3 off with its power switch in the event of a power failure. Looking at http://www.cyberpowersystems.com/support/faqs/topologysinewave.html my conclusion is that type of UPS is adequate for an Astron supply powering the K3, a computer, and accessories, but I'm no engineer. 73, Jim N7US __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
> Is it overkill to power my Astron RS-35 power supply that runs my K3 from > a UPS? In my opinion, yes- it's overkill. I personally would probably use the Astron to float a deep cycle or SLA battery on it's output. You might also want to investigate adding a PWRgate or similar Schottky diode matrix to the mix. This would provide not only the protection against abrupt power failure that you seem to seek, but also provide some additional operating time in the event of power fail. Those UPS units are designed to run for only a handful of minutes, while a computer system shuts down. GL, Bruce/N1RX __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
Here is a link to the PWRgate that I believe Bruce is referring to. This item is a compact, relatively low cost, well regarded solution that would be appropriate for use in the scheme Bruce has suggested. A yellow or blue top Optima, or other good AGM battery, along with a PWRgate, wouldn't cost too much more than the UPS being considered, but would be much more useful & versatile. http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Welcome.html 73 de Dennis KD7CAC Scottsdale, AZ On Jul 21, 2014, at 4:34 AM, Bruce Beford wrote: >> Is it overkill to power my Astron RS-35 power supply that runs my K3 from >> a UPS? > > In my opinion, yes- it's overkill. I personally would probably use the > Astron to float a deep cycle or SLA battery on it's output. You might also > want to investigate adding a PWRgate or similar Schottky diode matrix to the > mix. This would provide not only the protection against abrupt power failure > that you seem to seek, but also provide some additional operating time in > the event of power fail. Those UPS units are designed to run for only a > handful of minutes, while a computer system shuts down. > > GL, > Bruce/N1RX __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
For those that like to build things, see: http://k2jji.org/files/Power_Gate_Assembly_Instructions_v2.pdf for instructions on building your very own power gate... Even has a rudimentary battery charger you can add... The devices cost a whopping 3 bucks delivered from eBay. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2014-07-21 at 05:30 -0700, Dennis Griffin wrote: > Here is a link to the PWRgate that I believe Bruce is referring to. This item > is a compact, relatively low cost, well regarded solution that would be > appropriate for use in the scheme Bruce has suggested. A yellow or blue top > Optima, or other good AGM battery, along with a PWRgate, wouldn't cost too > much more than the UPS being considered, but would be much more useful & > versatile. > > http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Welcome.html > > 73 de Dennis KD7CAC > Scottsdale, AZ > > On Jul 21, 2014, at 4:34 AM, Bruce Beford wrote: > > >> Is it overkill to power my Astron RS-35 power supply that runs my K3 from > >> a UPS? > > > > In my opinion, yes- it's overkill. I personally would probably use the > > Astron to float a deep cycle or SLA battery on it's output. You might also > > want to investigate adding a PWRgate or similar Schottky diode matrix to the > > mix. This would provide not only the protection against abrupt power failure > > that you seem to seek, but also provide some additional operating time in > > the event of power fail. Those UPS units are designed to run for only a > > handful of minutes, while a computer system shuts down. > > > > GL, > > Bruce/N1RX > __ > 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 > Message delivered to d...@nk7z.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
Where might one actually find the "kit" on-line? I have not had any luck with my search. Thanks, Bill - W0BBI -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-UPS-for-K3-tp7591470p7591474.html Sent from the Elecraft 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1-4 4 band version gone? (Hand SMT---Never)
Wow -- I kind of touched a nerve with the "big boy" reference! I recall this term was used by Dave Benson in some of his SWL kit documentation. It merely referred the reader to a stripped-down section of the instructions if one wanted to bypass the lengthy, step-by-step narrative... My point is that manufacturers, such as the premier innovator, Elecraft, should not be constrained in their product designs by offering only through-hole or solder-only kits. Why, even TenTec has leap-frogged the industry in this area with their open-source, Rebel QRP platforms! I apologize for the poor use of words. As a relative newcomer to ham radio, it was not my intention to denigrate anyone on this reflector - especially those who have vastly superior technical knowledge and capabilities. 73 -- View this message in context: http://elecraft.365791.n2.nabble.com/Re-K1-4-4-band-version-gone-Hand-SMT-Never-tp7591431p7591475.html Sent from the Elecraft 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
The kit referred to in these instructions: http://k2jji.org/files/Power_Gate_Assembly_Instructions_v2.pdf is no longer available from the NFARL. However, the instructions contain all the info needed for a builder to source their own parts. Bruce/N1RX > Where might one actually find the "kit" on-line? > I have not had any luck with my search. > Thanks, > Bill - W0BBI __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K1-4 4 band version gone? (Hand SMT---Never
while this string is open I have used a small Iron and tweezers to position chip caps/resistors tack one end and then do the other end,,, I use some liquid rosin the multi lead devices make sure leads are centered on the board then tack one pin,,, solder the rest and use solder wick to clean up bridges working under a mag light,,, than I go over it with a 10 power stereo microscope static strap fer sure however when I built a DEM 1296 transverter board a chip cap got away from me and couldnt find it,, when I was done I found it sticking to my thumb nail go figure Bob K3DJC On Sun, 20 Jul 2014 19:32:12 -0400 "Bruce Beford" writes: > While I understand this mindset; I for one, am grateful that there > are > SMT-based kits available. I enjoy building both thru-hole and SMT > based > projects. In many cases, thru hole equivalents are not available for > some > components. I have built many all-SMT projects, notably those > offered by > KD1JV,ad formerly NJQRP (now Midnight Design Solutions), among > others __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3 GQRX
Has anyone been able to get the KX3's IQ to work with gqrx? I use gqrx with my RTL dongles and like the interface, it would be great to use with the KX3. Thanks! __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1-4 4 band version gone? (Hand SMT---Never
I don't think it's a matter of technique, Bob. I have all the right equipment (the special tweezers, solder paste - in the fridge, a hot plate, a heat gun). And I will do small, simple boards -- which even a 4-band K1 would not be. My problem is knowing that an ill timed sneeze can cause a serious problem - and it has. Plus as I age my hands get a bit shaky, another problem. So I avoid SMT whenever possible, to the point of paying someone else to do it as in a recent project. Phil W7OX On 7/21/14, 7:42 AM, riese-k3...@juno.com wrote: while this string is open I have used a small Iron and tweezers to position chip caps/resistors tack one end and then do the other end,,, I use some liquid rosin the multi lead devices make sure leads are centered on the board then tack one pin,,, solder the rest and use solder wick to clean up bridges working under a mag light,,, than I go over it with a 10 power stereo microscope static strap fer sure however when I built a DEM 1296 transverter board a chip cap got away from me and couldnt find it,, when I was done I found it sticking to my thumb nail go figure Bob K3DJC On Sun, 20 Jul 2014 19:32:12 -0400 "Bruce Beford" writes: While I understand this mindset; I for one, am grateful that there are SMT-based kits available. I enjoy building both thru-hole and SMT based projects. In many cases, thru hole equivalents are not available for some components. I have built many all-SMT projects, notably those offered by KD1JV,ad formerly NJQRP (now Midnight Design Solutions), among others __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
Interesting! I was thinking along the same lines about a UPS for the shack, but for a different reason. Aren't today's solid-state radios susceptible to damage from transients, much like our computers are? I would not turn on a computer that was not first connected to a quality UPS with surge protection. So, maybe not so much for backup, as most UPS are designed to continue to supply power to the computer and peripherals long enough to effect an orderly shutdown. We don't suffer from protracted power outages here, but rather from sags in the line voltage. This is especially true in the summer, when temperatures reach 100F and higher. But, what about surge suppression for our shack equipment? Or is this a silly question? Are we more susceptible to damage from lightening than from dirty power? 73 de Jim - AD6CW On 7/21/2014 5:30 AM, Dennis Griffin wrote: Here is a link to the PWRgate that I believe Bruce is referring to. This item is a compact, relatively low cost, well regarded solution that would be appropriate for use in the scheme Bruce has suggested. A yellow or blue top Optima, or other good AGM battery, along with a PWRgate, wouldn't cost too much more than the UPS being considered, but would be much more useful & versatile. http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Welcome.html 73 de Dennis KD7CAC Scottsdale, AZ __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
On 7/20/2014 10:42 PM, Wes (N7WS) wrote: Sounds good to me. http://sadxa.org/n7ws.html#amp Beautiful work, Wes 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
Two answers below. 73, Lyle KK7P 1) Can the KXPA100 and KX3 tolerate the higher voltages of a fully charged 14.8V battery pack? (In the range of 16V). No. The products are not guaranteed to FAIL if you apply 16 V, but they are not designed to operate from 16 V, either. 2) Do the KX3 or KX3 pull proportionally less current for the same power output from a 4-cell pack as compared to a 3-cell pack? The KX3 low voltage supplies are primarily switching supplies, so current drain at a higher input voltage will be less than the current drain at low supply voltage. The PA (KX3 or KXPA100) operates directly off the supply power and current is proportional to power level and drive, but not supply voltage. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
I don't think anyone mentioned this, but the inverter part of a UPS is a switching power supply. Why add to the potential noise cloud around the station? I have noticed lots of noise pollution from my various computer UPSs. The solution of floating a battery across the output of the regular 12v supply seems simpler and quieter to me. On 7/21/14 9:26 AM, Jim Lowman wrote: Interesting! I was thinking along the same lines about a UPS for the shack, but for a different reason. Aren't today's solid-state radios susceptible to damage from transients, much like our computers are? I would not turn on a computer that was not first connected to a quality UPS with surge protection. So, maybe not so much for backup, as most UPS are designed to continue to supply power to the computer and peripherals long enough to effect an orderly shutdown. We don't suffer from protracted power outages here, but rather from sags in the line voltage. This is especially true in the summer, when temperatures reach 100F and higher. But, what about surge suppression for our shack equipment? Or is this a silly question? Are we more susceptible to damage from lightening than from dirty power? 73 de Jim - AD6CW On 7/21/2014 5:30 AM, Dennis Griffin wrote: Here is a link to the PWRgate that I believe Bruce is referring to. This item is a compact, relatively low cost, well regarded solution that would be appropriate for use in the scheme Bruce has suggested. A yellow or blue top Optima, or other good AGM battery, along with a PWRgate, wouldn't cost too much more than the UPS being considered, but would be much more useful & versatile. http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Welcome.html 73 de Dennis KD7CAC Scottsdale, AZ -- 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
Very FB, Wes, and it has the requisite two meters: plate current and grid current. 73, Paul N6LL On 7/21/2014 9:38 AM, Jim Brown wrote: On 7/20/2014 10:42 PM, Wes (N7WS) wrote: Sounds good to me. http://sadxa.org/n7ws.html#amp Beautiful work, Wes 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 Message delivered to n...@arrl.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] UPS for K3
Good question, Jim. I believe you are correct. You might investigate power conditioning equipment for protection from both surge and sag and transients, and they appear to provide add some degree of regulation. Furhman is a respected power conditioning brand for gear that is used in recording studios and with rock bands and doubtless there are others. - James -K8JHR - On 7/21/2014 12:26 PM, Jim Lowman wrote: But, what about surge suppression for our shack equipment? Or is this a silly question? Are we more susceptible to damage from lightening than from dirty power? __ __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Have to push PF1 or P2 Twice to get Macro to fully work.SOLVED!
Special thanks to Tom (Win4K3Suite guy) and Jim KY2D for the following solutions. I changed mode first (SSB to data or vise versa) then the rest of the string. And adding a final trailing semicolon at the end of each string. Love this list! 73 de K5RHD /randy __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1-4 4 band version gone? (Hand SMT---Never)
Am 21.07.2014 14:40, schrieb N4OI - Ken: > Wow -- I kind of touched a nerve with the "big boy" reference! I recall this > term was used by Dave Benson in some of his SWL kit documentation. It > merely referred the reader to a stripped-down section of the instructions if > one wanted to bypass the lengthy, step-by-step narrative... My point is > that manufacturers, such as the premier innovator, Elecraft, should not be > constrained in their product designs by offering only through-hole or > solder-only kits. Why, even TenTec has leap-frogged the industry in this > area with their open-source, Rebel QRP platforms! > > I apologize for the poor use of words. As a relative newcomer to ham radio, > it was not my intention to denigrate anyone on this reflector - especially > those who have vastly superior technical knowledge and capabilities. > > 73 > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Re-K1-4-4-band-version-gone-Hand-SMT-Never-tp7591431p7591475.html > Sent from the Elecraft 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 > Message delivered to hwschu...@sapo.pt > -- Cumprimentos / Freundliche Grüsse / Best regards Herbert W. Schulte __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1-4 4 band version gone? (Hand SMT---Never)
Simple SMD kits are fine because the success rate can be high and the investment risk on the part of both the customer and the manufacturer is low. We may offer such kits in the future, though we don't have any present plans for these. The percentage of builders who could complete a complex SMD kit, or have the skill and test gear to troubleshoot them, is small. Kitting and documentation alone would be a huge investment for us, not to mention customer support. Many such kits would never be finished, or repaired, or would have mysterious unresolved issues. Perceived quality would suffer and frustration levels would go way up. One thing Elecraft is known for is packing a lot of functionality into a small space. This requires the use of very fine-pitch TQFP IC packages as well as 0603 passives (even 0402 in a few cases). To make SMD kits viable at all we'd have to use much larger-pitch parts. This would force products to be larger, heavier, and more expensive. Even though a small percentage of customers would be willing and able, this simply isn't an economically viable direction for us. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1-4 4 band version gone? (Hand SMT---Never)
Hi all, as I started that idea with the SMT components, I will try to moderate a little bit. I am over sixty and so I know the problems with needs of special glasses to handle the SMT components down at 603 or 402 ( 1 x 0.5mm). So my idea is, not designing without SMT, but for those who like it, provide kits with premounted SMT , so that these users may build their kit without the needToday to handle and solder SMT "sand". Today in some cases the "wanted" parts are no longer available as THT. In the future this will be the case for more and more parts. The most evil thing is, that some very interesting part are even today only available as BGA SMT which needs the handling by special tools or machine just for the placement ?! So let's have fun and let's not forget to prepare a way for those which can not or are unwilling to solder SMT Humberto . Am 21.07.2014 14:40, schrieb N4OI - Ken: > Wow -- I kind of touched a nerve with the "big boy" reference! I recall this > term was used by Dave Benson in some of his SWL kit documentation. It > merely referred the reader to a stripped-down section of the instructions if > one wanted to bypass the lengthy, step-by-step narrative... My point is > that manufacturers, such as the premier innovator, Elecraft, should not be > constrained in their product designs by offering only through-hole or > solder-only kits. Why, even TenTec has leap-frogged the industry in this > area with their open-source, Rebel QRP platforms! > > I apologize for the poor use of words. As a relative newcomer to ham radio, > it was not my intention to denigrate anyone on this reflector - especially > those who have vastly superior technical knowledge and capabilities. > > 73 > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Re-K1-4-4-band-version-gone-Hand-SMT-Never-tp7591431p7591475.html > Sent from the Elecraft 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 > Message delivered to hwschu...@sapo.pt > -- Cumprimentos / Freundliche Grüsse / Best regards Herbert W. Schulte __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] FS: KXPD3 Paddles for KX3
KXPD3 paddles, in like new condition. Non smoking environment. Includes all supplied hardware, instructions, wrenches, and USPS shipping to CONUS. $100 Pay Pal or MO. 73, Rick Dettinger k...@arrl.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPA100 Thermal Fault
Thanks to all who made suggestions. I will be trying one or two fans atop the heat sink and see how that works out in the next RTTY contest foray. While looking into possibilities, I checked out the web site where I got my "add-on" KX3 heat sink (https://proaudioeng.com/products/) and found they had added a new product, a power supply specifically for the KX3. Specs look promising. [I don't have a vested interest in the company, just pleased with the heat sink.] Again, this reflector is a great source for ideas about great products! 73, Bert N4CW/K1IMI In a message dated 7/20/2014 7:18:48 P.M. Eastern Daylight Time, n...@aol.com writes: I used my KX3/KXPA100 in the NAQP RTTY contest this weekend. The KX3 with added-on heat sink worked very well; however, the KXPA100 repeatedly faulted with HI TEMPERATURE indicated on the KX3 at full output after prolonged operating (lots of CQ'ing with short pause intervals). PA.X temp indicated at failure was around 60C...as it should. Shack temperature was around 70 degrees F Yes, I know all about digital modes and full power stressing amplifiers, etc. What I want to know is how to mitigate this interruption yet run full output. To that end, I have a couple ideas: what if I mounted the amp vertically so the heatsink fins "drew" cooler air through themselves via convection? Secondly, would a couple muffin fans mounted atop the cooling fins do the job? The net of this is that I'd like to enjoy the full benefit of having a high-quality 100-Watt amplifier, regardless of mode or key-down time. Bert N4CW/K1IMI __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPA100 Thermal Fault
Crazy. Find one from Newegg for far less. On Jul 20, 2014 5:25 PM, "David Cole" wrote: > Fans are always good... I saw someone selling a thermostatically > controlled fan for 70 bucks recently... Built for whatever you want to > use it on. I wish I knew where he got his thermostat from... I would > build it myself... Can't bring myself to spend 70 bucks on a fan. > -- > Thanks and 73's, > For equipment, and software setups and reviews see: > www.nk7z.net > for MixW support see; > http://groups.yahoo.com/neo/groups/mixw/info > for Dopplergram information see: > http://groups.yahoo.com/neo/groups/dopplergram/info > for MM-SSTV see: > http://groups.yahoo.com/neo/groups/MM-SSTV/info > > > On Sun, 2014-07-20 at 16:54 -0700, george fritkin via Elecraft wrote: > > Why not run it at 50 watts and give up the 3db. Probably will not make > a difference in number of contacts and your thermal problem should go away. > Also what is SWR > > > > George, W6GF > > > > > > On Sunday, July 20, 2014 4:23 PM, Bert via Elecraft < > elecraft@mailman.qth.net> wrote: > > > > > > > > I used my KX3/KXPA100 in the NAQP RTTY contest this weekend. The KX3 with > > added-on heat sink worked very well; however, the KXPA100 repeatedly > faulted > > with HI TEMPERATURE indicated on the KX3 at full output after prolonged > > operating (lots of CQ'ing with short pause intervals). PA.X temp > indicated at > > failure was around 60C...as it should. Shack temperature was around 70 > > degrees F > > Yes, I know all about digital modes and full power stressing amplifiers, > > etc. What I want to know is how to mitigate this interruption yet run > full > > output. To that end, I have a couple ideas: what if I mounted the amp > > vertically so the heatsink fins "drew" cooler air through themselves via > > convection? Secondly, would a couple muffin fans mounted atop the > cooling fins do > > the job? > > The net of this is that I'd like to enjoy the full benefit of having a > > high-quality 100-Watt amplifier, regardless of mode or key-down time. > > > > Bert N4CW/K1IMI > > __ > > 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 > > Message delivered to georgefrit...@yahoo.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 > > Message delivered to d...@nk7z.net > > __ > 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 > Message delivered to rgcon...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPA100 Thermal Fault
Make sure you put the fans the right way around, ie. sucking up the hot air and blowing it away from the heat sink :-) 73, Matt VK2RQ > On 22 Jul 2014, at 9:18 am, Bert via Elecraft > wrote: > > Thanks to all who made suggestions. I will be trying one or two fans atop > the heat sink and see how that works out in the next RTTY contest foray. > While looking into possibilities, I checked out the web site where I got my > "add-on" KX3 heat sink (https://proaudioeng.com/products/) and found they > had added a new product, a power supply specifically for the KX3. Specs > look promising. [I don't have a vested interest in the company, just pleased > with the heat sink.] > Again, this reflector is a great source for ideas about great products! > 73, Bert N4CW/K1IMI > > > In a message dated 7/20/2014 7:18:48 P.M. Eastern Daylight Time, > n...@aol.com writes: > > I used my KX3/KXPA100 in the NAQP RTTY contest this weekend. The KX3 with > added-on heat sink worked very well; however, the KXPA100 repeatedly faulted > with HI TEMPERATURE indicated on the KX3 at full output after prolonged > operating (lots of CQ'ing with short pause intervals). PA.X temp indicated at > failure was around 60C...as it should. Shack temperature was around 70 > degrees F > Yes, I know all about digital modes and full power stressing amplifiers, > etc. What I want to know is how to mitigate this interruption yet run full > output. To that end, I have a couple ideas: what if I mounted the amp > vertically so the heatsink fins "drew" cooler air through themselves via > convection? Secondly, would a couple muffin fans mounted atop the cooling > fins do > the job? > The net of this is that I'd like to enjoy the full benefit of having a > high-quality 100-Watt amplifier, regardless of mode or key-down time. > > Bert N4CW/K1IMI > > __ > 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 > Message delivered to matt.vk...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft] KXPA100 Thermal Fault
When I was using my K2/100 on RTTY, I stuck a muffin fan over the hottest part of the heatsink with a little square of sticky back velcro. Could run 100 watts just fine. Fan blew down. 73, Fred K6DGW TDY Huntington Beach CA Bert via Elecraft wrote: >Thanks to all who made suggestions. I will be trying one or two fans atop >the heat sink and see how that works out in the next RTTY contest foray. >While looking into possibilities, I checked out the web site where I got my > "add-on" KX3 heat sink (https://proaudioeng.com/products/) and found they >had added a new product, a power supply specifically for the KX3. Specs >look promising. [I don't have a vested interest in the company, just pleased >with the heat sink.] >Again, this reflector is a great source for ideas about great products! >73, Bert N4CW/K1IMI > > >In a message dated 7/20/2014 7:18:48 P.M. Eastern Daylight Time, >n...@aol.com writes: > >I used my KX3/KXPA100 in the NAQP RTTY contest this weekend. The KX3 with >added-on heat sink worked very well; however, the KXPA100 repeatedly faulted > with HI TEMPERATURE indicated on the KX3 at full output after prolonged >operating (lots of CQ'ing with short pause intervals). PA.X temp indicated at > failure was around 60C...as it should. Shack temperature was around 70 >degrees F >Yes, I know all about digital modes and full power stressing amplifiers, >etc. What I want to know is how to mitigate this interruption yet run full >output. To that end, I have a couple ideas: what if I mounted the amp >vertically so the heatsink fins "drew" cooler air through themselves via >convection? Secondly, would a couple muffin fans mounted atop the cooling fins > do >the job? >The net of this is that I'd like to enjoy the full benefit of having a >high-quality 100-Watt amplifier, regardless of mode or key-down time. > >Bert N4CW/K1IMI > >__ >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 >Message delivered to k6...@foothill.net > > __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
On 7/21/2014 9:51 AM, Lyle Johnson wrote: The PA (KX3 or KXPA100) operates directly off the supply power and current is proportional to power level and drive, but not supply voltage. Thanks, Lyle. The additional question I was asking here is if the KXPA100 pull proportionally less current from a 14.8V supply to achieve the same output power than from an 11.1V supply? (The difference is one less cell in the Li-Ion pack.) The calculation I'm getting at here is for a given pack weight, do 11.1V or 14.8V packs give me the most power out per pound? 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
I think some where my original question go lost. Can the K3 operate key down at 100W's. I did get an answer, yes - 120w for 24hr's... So the answer is yes. I complicated things by adding JT65 and that I operate at 0.5 to 2 watts with my KX3, but up to 20w with an IC-706. Yes, if I am -25db at 0.5 watts, I can/should up the power so the "guy" at the other end can hear me better. Yes, it IS weak signal not low power... The NAQP contest this past weekend was fun (I used the O2). It has been a few years since I got the chance to operate a digital mode contest. The great receiver in the O2 did fine and is why I would only think of replacing the O2 with a K3. everyone have a great day! steve WB3LGC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 power out - key down
Well, yes... {less powerful engine} After the late 60's the rules were
changed to require all cars to operate under the same limits. NO more
turbine cars... (for a $6 ball bearing...)
steve WB3LGC
On 21-Jul-14 1:34 AM, Wes (N7WS) wrote:
Or, when they're patting your face with a shovel saying, "I wish I'd
spent more time working QRP."
On 7/20/2014 12:36 PM, Edward R Cole wrote:
Do they say: "I wish I had a less powerful engine to make it a
more challenging race."?
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[Elecraft] KX3 UPS - Battery charger AKA PowerGate
I've been using that circuit for years, the double diode Schottky circuit, because the company I worked for at the time used that same circuit to keep the backup SLA batteries charged in their repeaters. It' a very simple circuit and you always have a charged battery when power fails. I believe this is the best way to go as you always have the DC batteries on trickle charge while the AC power supply is running the rig and supplying the trickling. So all my main radios are run from their own 100AH (sealed lead acid) batteries with a PowerGate type circuit keeping them charged. We don't have a lot of power failure where we live in AZ but during the monsoon rains we can get some power bumps. I like using this type of circuit because it isolates the radios from any of the power bumps and brownouts we sometimes get. Essentially all my radios are running off batteries. The changeover from AC to Battery is instantaneous with no hiccups no matter how many times the power bumps. I sti ll use UPSs for my computers because their primary power source is AC. I have used this simple circuit to power scanners and 2m radios during power outages. I used some smaller rated diodes then the ones called out because I had them. (15 and 20 amp) I had some 7AH batteries out of my UPSs and a 58 AH for my 2m radio kicking around. As long as the current draw does not exceed the rating of the diodes you're OK. I even heard of one person who was going to use diodes out of an alternator. Don't know if he did. I build my smaller circuits on a screw type terminal strip with a clip on heat sink on the diode and attach the strip right to the top of the battery with double stick tape. My scanner is run off a 12v wall wart and a 7AH SLA instead of a PS and works just fine. Because of the drop through the diodes, you may have to turn up your voltage from the PS to compensate. Been running several these circuits for several years with no mishaps. (always fuse power circuits) Art - KC7GF __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3 sidetone bug when recording memories
Hello list, I just noted another misbehaviour on the KX3 (MCU firmware 1.94 and 2.12): When disabling VOX in CW mode and recording a text into one of the memories 1-6 and using the ending phrase (..--) at the end of the text the CW sidetone stays on until I press another button. I usually tap MSG again and the sidetone stops. Seems like the confirmation tone of the ending starts but does not stop until another sound is played...for example a key press. I noticed when I set up CW memories testing the fast play mode in the contest and programming the memories in the field. I usually use the KX3 utility for that but in the contest you want your transmission end as quick as possible (using ). This behaviour only happens while recording memories and not while playing. Regards! Sven, DJ2AT __ 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 Message delivered to arch...@mail-archive.com
