Re: [Elecraft] K-Line / ZeroFive Antennas
Jim … How well it “works” will be almost entirely dependent on the radial system you have installed and on the local noise level. I’d recommend at least 32 radials - as long as you have space for. On or in ground is fine.If you do that, the performance and patterns should be approximately like the charts shown in all the handbooks for verticals over a ground plane. If you are asking about the ability of the tuners in the Elecraft products to accommodate the mismatch on each band, that is a different question. In general Elecraft’s tuners will handle up to a 10:1 SWR. 73 Craig AC0DS __ 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] Oscilloscope recs
Lou … You are looking in the right place, in my opinion, with Siglent, Rigol, etc. Another brand to look for is Hameg.They all offer lots of features and value for the $$. Great buys on Spectrum Analyzers there also, by the way ;>) Back when I had my lab I had Agilent scopes, but if I were doing it over today, I’d go with something like the above. If you aren’t familiar with it, check out Dave Jones’s EEVBlog podcast. He has dozens of detailed reviews of these scopes which include HD Video teardowns of the internals as well as analysis of the circuitry. Should be available at your favorite source of podcasts. Happy Shopping ! 73 Craig AC0DS __ 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] K4 S-meter characteristics
It is very true that - in a contest situation - we aren’t often concerned with measuring signal levels. No argument. And, if contesting, DXing and rag chewing are all you use your K3 / K4 for, then I understand why you aren’t interested in the additional bells & whistles that are being discussed here. But many of us use the K3 / K4 for other purposes also. Even with the current implementation in the K3 / K3S, the dbm referenced signal measurement capability is extremely useful.My K3 was invaluable when I had an electronics lab as a very sensitive and selective calibrated RF voltmeter. Used it constantly both for design and for troubleshooting during many construction projects. I think the kinds of enhancements being discussed here will be a valuable addition to the K4 and encourage additional discussion. 73CraigAC0DS __ 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] Where is Elecraft Support ?
Great post Wes 73 Craig AC0DS > On 10, Mar2020, at 9:40 PM, Wes wrote: > > Before I retired the second time I was managing a small group of components > engineers. Several of my guys worked full time on parts obsolescence issues. > "Lifetime buys" sound like a good idea until you run up against the > procurement and QC people. Try managing inventory of pricey Mil-spec parts > for 10 or more years, maintaining QC traceability. Not easy and when you > finally need them you'll find they were thrown away after the last > reorganization. (I never liked the word reorganized, as it suggests that you > were previously organized, something that I never found to be the case.) > > BTW, several sources will still sell you a MC68000. > > Wes N7WS > > On 3/7/2020 6:02 PM, Fred Jensen wrote: >> You can always emulate the US Department of Defense if you'd like ... it's >> called a "Lifetime Buy." When the airplane builder's contract finally ends >> and he no longer is required to stock parts, the engineers and logistics >> folks decide on the further lifetime of the airplane fleet and buy enough >> parts to keep it flying until it will be retired to Arizona which might be >> in 20 more years. >> >> A lot of folk believe that science and engineering are the same thing. >> They're not. Engineering is science coupled with economics, logistics, >> mathematics, fabrication, maintenance, supply chain management, and a host >> of other trade-off's, sometimes including labor relations and law. Bell >> Labs "invented" the transistor. Companies like TI, Fairchild Semiconductor, >> Intel, Motorola, and AMD put them in the marketplace and they get to stop >> making them when something better comes along. See if you can find a Moto >> 68000 replacement for your old Mac. [:=) >> >> My K3 is S/N 642, and has been upgraded multiple times. I think it's about >> 10 years old and I think Elecraft has done a very good job compared to what >> the other guys do. I'm a little in awe that Elecraft has been in business >> long enough now for the inevitable to be happening. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County > > __ > 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 ac...@sent.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] I am flummoxed about my antenna
Lee … You’re on the right track with changing the coax. You have some sort of resistive loss. As you note, the “bandwidth” is much higher than it should be. My inverted L had a 2:1 SWR bandwidth of perhaps 35 KHz at most. Your low SWR across the entire band indicates very low efficiency and some sort of loss element(s). After the coax, I’d look at connectors, insulators, etc. etc. Do you have any feed-thrus, suppressors, or other things in the feed system? I’d suggest first checking the SWR and bandwidth right at the antenna base with the coax disconnected. Use a portable instrument. Good Luck! 73 Craig AC0DS > On 1, Dec2018, at 9:54 AM, Leroy Buller wrote: > > There > I tried to get on 160 with my Inverted L last night. 60 feet up and the > rest over to a tree, 130 feet total. About 20 random length radials in the > yard. The best I can do with a city lot. This antenna worked last year > very well, but now I get this > > 12/1/2018 10:46:08 AM NOTES: > > Frequency SWR > - --- > 00180 1.3 > 00181 1.4 > 00182 1.4 > 00183 1.4 > 00184 1.4 > 00185 1.5 > 00186 1.6 > 00187 1.6 > 00188 1.5 > 00189 1.5 > 00190 1.6 > 00191 1.6 > 00192 1.6 > 00193 1.6 > 00194 1.6 > 00195 1.6 > 00196 1.6 > 00197 1.7 > 00198 1.8 > 00199 2.0 > 00200 2.1 > > There seems to be NO resonance at all with this antenna. Before, I could > operate the bottom of the band but nothing above 1850 without a tuner. I > have changed out the coax feeding the antenna which hepl bring signals up, > but it seems to be a dummy load. > > Anyone have an idea what is going on? Shucks, I am out of ideas. Unless > my ground plane has gone wonky > > My tuner can't find a match for it either. I have an automatice tuner now, > but it cannot find a match. Something is wrong here and I am stumped. > > Any help from the antenna gurus out there? > > Lee - K0WA > __ > 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 ac...@sent.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
[Elecraft] Off Topic: Fluke Multimeter for Sale
I have for sale a like-new Fluke model 87-V multimeter along with extra accessories. This is the industry standard handheld meter for electronics work. 4.5 digit display, 0.05% accuracy, extensive capacitance measuring capability, temperature measurement with included probe and legendary Fluke quality / reliability / durability. This model is still in production today and is Fluke’s top-of-the-line electronics handheld meter. I purchased this new in 2010 and it has since been used only in my lab while I had my consulting business. I’ve since retired and moved to a condo, so no longer have need for an instrument of this accuracy. This unit is in mint condition. It has always worked perfectly. Your purchase includes the meter, all original accessories including probes, the thermocouple probe, original box, manual, paperwork and DVD. I’m also including another like-new set of Fluke industrial probes with interchangeable tips, including alligator clips, clamps and clip-on hooked probes.Also included are some Probe Master mini-clip-on probes, BNC adapters, etc. The street price for this meter is currently $387.I’m asking $220 for the meter, accessories and additional extras including USPS insured Priority Mail shipping to the lower 48.Payment via PayPal. Photos by request. Contact me via email if interested. My email address OK on QRZ. Thanks and 73 CraigAC0DS __ 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] A little theory
Thank You Ron for the audio clip. I’ve seen various videos of Feynman’s work and have enjoyed them. But this audio, in addition to his wonderful NYC accent, brought back a sound I do not remember hearing in the past 45 years. And a sound that is precious (in retrospect) to me - the sound of chalk hitting blackboard. That “leading edge”, the audible signal that something important may follow, is an “attention getter” that physicists and mathematicians will always be attuned to. It can be heard about 2 minutes into your clip. Thank You! 73 Craig AC0DS Craig Smith 1009 Alder Way Longmont, CO 80503 cr...@powersmith.net 303-834-7712 > On 16, Apr2017, at 4:09 PM, Ron D'Eau Claire wrote: > > Having read Feynman's books, I got a big chuckle out of hearing him lecture > for the first time. With his strong New York accent, he reminded me of the > guy who makes great sandwiches at the local deli. And his sense of humor was > such that he'd probably get a big laugh out of that comparison. > > Here's 5 minutes of clips of a very passionate Feynman lecturing on Algebra! > > > http://www.feynman.com/2016/05/19/the-animated-feynman-lectures/ > > His dedication to teaching at all levels makes him a genuine hero in my > book. > > 73, Ron AC7AC > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob > Nielsen > Sent: Sunday, April 16, 2017 2:42 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] A little theory > > I did meet him. The first thing he said to me was, "Call me Dick", as he > wasn't much for titles. When he was scheduled to give a lecture to the > freshman class at Caltech we were told to arrive early because the > upper-classmen would fill up the lecture hall. In addition to his work in > theoretical physics, he was a master of the bongo drums. A > somewhat-fictionalized film of Feynman's time at Los Alamos is "Infinity" > starring Matthew Broderick. > > 73, Bob N7XY > > > > __ > 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 cr...@powersmith.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] Dimmable LED desk lamp for operating position recommendation needed
Greetings Peter … Have a look at this one: https://www.amazon.com/Dimmable-Stoog-Brightness-Rechargeable-Adjustable/dp/B01CSHZ99Y/ref=sr_1_10?s=home-garden&ie=UTF8&qid=1483715928&sr=1-10&keywords=usb+led+desk+lamp I’m not claiming this is the highest quality lamp ever made. I also do not currently have a way of assessing the EMI situation with your setup. However, it is an amazingly versatile lamp and well worth the $13 price! Even if you select something else, you may want to have one of these around for other purposes. Some of the things I like about it: Very small and light and easily moved around for the task at hand. Convient recharge from any USB port. 3 selectable light intensities. Very long time between recharges. I use mine fairly intermittently, but get 2 or 3 months usage on a charge. For $13, it can be considered a throw-away item if you don’t end up liking it. 73 CraigAC0DS __ 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 Customer Service
Jeff … I understand your reaction, but don’t think this one is due to anything at Elecraft.If you have a “My UPS” type of account with UPS, then you will receive that kind of email from UPS automatically no matter who initiates the shipment. I’ve also been surprised and mystified on occasion when I get that notice when I know I haven’t ordered anything lately. 73 & Happy Holidays … CraigAC0DS __ 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: K3 - 100F Loaded
This is a very clean K3 - 100F 100 watt transceiver (S/N 45XX). I am the original owner, non-smoker. Features: Filters FM 13Khz, AM, 6 Khz, 2.8 Khz, 500 Hz, 400 Hz K144 2 meter module (totally gone through at Elecraft) KSYN3A synthesizer upgrade. All updates to current specifications with a Elecraft Service Report. PR6/10 Preamp CNC73 VFO A and VFO B knobs included Will ship CONUS insured. $2,095. Please leave your phone number for me to contact you - Craig W6WL __ 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 : P3 Sold
Thank you for the response W6WL __ 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 P3 w/ SVGA and TX Mon Board
I am the original owner, non -smoker. Excellent condition with manual. $650 obo. Contact me at w...@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] Sloping Terrain vs Feedline Losses
Ted … I think you are overstating the coax losses. Even stock RG-11 should be perhaps 0.3 dB/100ft on 80 meters - around 1.5 dB for the 500 ft. run. Even so, I would probably gravitate toward the closer location. With the elevated radials, the effects of the ground conductivity should be minimal. Not sure if ON4UNs data assume elevated radials or many on-ground radials. It could be that his estimate of the sloping ground advantage is for the later. With the closer location, you will have perhaps 1 dB stronger signal in all directions because of the lower feedline loss. 73Craig AC0DS __ 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] K8ZOA SK and Clifton Laboratories
Jack was indeed a fine gentleman and an excellent designer. Never had the pleasure of a face-to-face meeting, but was the recipient of his expertise and kindness more than once. I really appreciated his designs. Excellent performance, of course, but also incredible attention to detail in terms of documentation and user support. When I was active in CW contesting he was kind enough to lend me some prototype equipment for evaluation. The ham community is much the poorer for his loss. 73 Craig AC0DS __ 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] Filtering RFI from LED & flouresence Dimmer Switches
Thanks, Bill.I have the newer DC motor with Battery Backup Liftmaster, but I’m guessing the receivers might be similar. Interestingly, in the new manual they actually recommend CFLs but warn against LED. Obviously the front end of their receiver is not designed to Elecraft standards ;>) 73 Craig AC0DS __ 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] Filtering RFI from LED & flouresence Dimmer Switches
Thanks for the garage door opener experience. I had my door and opener replaced a few months ago. The manual for the opener (Lift Master) specifically says not to use LED bulbs. I was scratching my head over that but did use CFLs in the opener. I asked the installer why that recommendation was there, and he said he didn’t know why LEDs couldn’t be used. But, as your experience shows, it appears that it can indeed be a problem. Probably the close proximity of the opener receiver to the poorly filtered (for some bulbs) switch-mode converters in the bulbs. 73 Craig AC0DS __ 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] LED Lamps and HF RFI?
You are wise, Ted, to be cautious about this. As you implied, it is not the LEDs themselves but how they are driven. LEDs are current driven devices and, for a given intensity, are typically driven by a constant current source. In the case of a panel LED in a K3 or whatever it is easy to do this by just using a series dropping resistor as an analog current source and not worrying about the lost power in the resistor. This approach will be quiet in terms of RFI. In home lighting applications, the currents are higher as are the desires for high efficiency and minimum power loss. So a switching regulator type of current source is employed, either on a lamp-by-lamp basis or be connecting several lamps in series with one current source. The switch mode current source can indeed be noisy. Even though in theory it could be made fairly quiet by means of good layout, control over wave shaping, extensive filtering, and high quality compliance testing, all of that typically does not happen in a cost-driven application such as home lighting. You asked for people with good data. Unfortunately, I'm not one of them. I'm not even sure if good data exits on lighting RFI in a real-world applications.Even if a manufacturer characterizes the EMI performance in a data sheet, things are sometimes cost reduced later in manufacturing (less filtering) and can also be compromised by improper installation and grounding by a contractor. Conceptually, I'm a big fan of LED lighting and have several types in various places in the house.But back when I was active on the air I made sure that I could turn them all OFF easily on contest weekends, etc. The bottom line is that nothing is quieter than incandescent. I wish that that wasn't the case as the energy savings with LED are significant. Perhaps in 10 years it won't be a concern. But right now I would be cautious and have a "plan B" for lighting when operating. 73 CraigAC0DS On 11, May2015, at 8:13 PM, Dauer, Edward wrote: > Had an electrician at the operating QTH today to discuss replacing the > recessed ³can² lighting throughout the house. He suggested replacing the > incandescent cans (now 65 watts per bulb) with LED lamps (same lumens with > 10-13 watts per bulb). I have looked at the Internet on the question of > RFI from LED bulbs and see wildly inconsistent reports. It is the case > that HF radios like the K3 have LEDs in their panels; but I would be > installing as many as 60 LED fixtures running at 10-13 watts each. My > caution comes from my novice days in the 50s when a single fluorescent > lamp put my hamming out of business - things were quiet when the only > light source was the filament of a 6146 and the dial lamps on the HQ-100. > I know that LEDs aren¹t at all the same; but I don¹t want to relamp the > house if it puts me off the air. And if they (or their power supplies) do > generate RFI in the HF bands, would the K3¹s NR get rid of it? Anyone > have any good data on this? > > Tnx, > > Ted, KN1CBR __ 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] OT: Changes at WWV, WWVB
> I heard from my time-nerd friends that the modulation scheme changes for > a short period at night to allow a chance for older equipment to sync > up. I don't know that for sure. > > Technology Review said there are millions of pieces of equipment that > use the older scheme. This is indeed interesting stuff. First I've heard of the change. But I do have several automatically syncing clocks in the house and have noticed that he syncing isn't as robust and dependable as it was some years ago. For example, switching from standard to daylight savings time and back takes some of them a few days to accomplish, with some of them switching back and forth from day to day before finally getting it right. Don't think that signal strength is the problem. As someone else noted, it sure would be good to know which manufacturers use the new standard! 73 Craig AC0DS __ 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] very small 20A switching PS
I also had very good results with the Gamma with my K3. In CW mode, it will support an output power of about 75W. More on SSB I would guess. 73 Craig AC0DS __ 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] Internal Impedance of Li-Ion Battery Packs
It seems to me that using the two smaller packs would have some advantages for your application. They would each be able to power both the KX-3 and the amplifier, just for about half the time of the single larger battery. So you would have to switch over to the other battery at some point. But using two does offer redundancy in the event of a battery failure. Also, dividing the weight into two chunks may be advantageous for the folks who are humping them up the mountain. 73 Craig AC0DS On 4, Aug2014, at 10:01 AM, Jim Brown wrote: > On 8/4/2014 7:54 AM, Bob N3MNT wrote: >> I suggest using two 4S1P LiFePo packs, each being half of the desired >> capacity. > > Thanks -- but this application is to run both the KX3 and KXPA100. > > 73, Jim > > __ > 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 cr...@powersmith.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] Diversity antenna experiences?
Sounds like a fairly good experience overall, Jim. I'm on an even smaller (< 0.25 acre) HOA restricted lot and had an inverted L on 160 that I used in conjunction with a K9AY receive antenna. I really liked the K9AY, as it allowed for directional switching and very good S/N ratios with a very small footprint. Much better at RX than the inverted L. I also had it set up for diversity but noted the same thing you did with your BOG Beverage - the K9AY was so much better I just ended up using it without diversity for RX. One issue is that for optimal diversity reception the two antennas need to be spaced a fair distance apart in terms of wavelength. I certainly didn't have that here (K9AY and inverted L only about 60 feet apart). Even with your one acre, you might not have enough separation, depending on your layout. 73 Craig AC0DS __ 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] [OT] - PAR HF OMNI ANGLE
Both the PAR omniangle and the doublet are excellent antennas. The 44 ft doublet on 17 meters has a pattern with several sharp lobes, and its gain will vary considerably depending upon which direction the signal is coming from. In some directions it will be significantly better than the Omniangle, and in some directions significantly worse. I believe that this is likely what Stan was experiencing with the contact in his video. The obvious advantage of the Omniangle is size. The big advantage of the doublet is easy multi-band operation (with the tuner). Its gain vs. desired direction can be either an advantage or disadvantage. 73 Craig AC0DS Craig Smith 1009 Alder Way Longmont, CO 80503 cr...@powersmith.net 303-834-7712 On 26, Sep2013, at 10:33 AM, Vic K2VCO wrote: > How high was the 44' doublet? > > How was it oriented compared to the Omni Angle antenna? > > Is the doublet in inverted V or horizontal configuration? > > I am finding this interesting because I am soon moving to an > antenna-restricted location. > > On 9/26/2013 6:57 AM, stan levandowski wrote: >> About 3 weeks ago, I learned about a new "miracle antenna" - I usually >> dismiss such >> nonsense because there *is* no miracle antenna. However, the person who >> informed me is a >> trusted, capable, educated ham and DXpeditioner who is not easily impressed. >> >> I still don't believe in "miracles" but this 2.5 lb, 7 by 4 foot, easy >> up/easy down, no >> tools required, easy-to-tune $99 new product by Dale Parfitt [designer of >> the PAR End >> FedZ series] offers a realistic alternative to those with severe antenna >> restrictions, >> attic installations, SOTA needs, and so on. It is easily mounted on a >> Jackite or similar >> fiberglass pole. Just put it on and slide it down until it's a good friction >> fit. >> >> The antenna is resonant for a single band ( choose: 20, 17, 15, 12, 10 or 6) >> and >> additional matchboxes can be purchased for around $25 each. >> >> I bought the 17 meter version and in two weeks of non-scientific, casual A/B >> testing >> against my 44' doublet, the Omni Angle has been equal or better on receive >> the majority of >> times and about the same on transmit. On receive it seems notaby less noisy >> than my >> doublet. It is horizontally polarized. >> >> I don't want to create an antenna controversy here on proper antenna testing >> techniques -- >> I seem to have a flair for doing that -- ;) >> >> But I do want to pass along info on this new product which might be very >> useful to those >> of us who have to live with antenna restrictions or who need options for >> effective >> portable operations. >> >> Here is a short Youtube video I cobbled together to demonstrate my 17 meter >> PAR Omni Angle. >> >> http://www.youtube.com/watch?v=JGTq4zVAW_w >> >> 73, Stan WB2LQF >> >> >> >> >> >> __ >> 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 > > -- > 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 > __ 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] why mix rf connector types within the product line?
Even at 100 W, BNC is clearly the best choice. The first thing I did when I got my K3 was to get rid of the UHF connectors and put in proper BNCs. 73 Craig AC0DS __ 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] F/S 73CNC K3 Weighted Knobs
I have a "like new" set of all black 73CNC K3 Main and VFO B Knob Combo for $100 (Cost me $150). I will pay for shipping within the lower 48 states. You can contact me via my email address w...@arrl.net. Craig __ 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] Agilent 5034A 300 MHz 4 channel oscilloscope - mint condition
The Agilent Scope has been sold 73 Craig AC0DS __ 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] FS: Agilent 5034A 300 MHz 4 channel oscilloscope - mint condition
>From time-to-time there are discussions here about purchasing oscilloscopes, >so thought I'd post this for my Elecraft friends who may be interested in >acquiring a high quality scope at a fair price. I have for sale my mint condition Agilent DSO5034A oscilloscope, SN MY47150520. This was purchased new in 2007 and it has since been performing perfectly in my air-conditioned non-smoking lab. Terrific measurement capability and a joy to use. Closing down lab, so it is time to sell. 300 MHz bandwidth, 4 channels, Megazoom, 2 Gig Samples/sec, 8 M point acquisition memory, brilliant color display, math functions, automatic data readouts, USB computer control capability, XGA out, convenient portable size, etc., etc. See Agilent website for complete specifications. Your purchase includes four Agilent N2863A X10 300 MHz passive probes with accessories, one Probemaster X1 passive probe, all original documents and manuals, CD ROMs, calibration certificate and original Agilent shipping box. This instrument sold new for $7742. It was just recently discontinued as a production product, but will be fully supported by Agilent until March 2018. Price is $3250 which includes insured UPS ground shipping to your lower 48 USA address. PayPal only, please. If interested, contact me directly via email: craig (at) powersmith (dot) net. Photos available by request. 73 Craig AC0DS __ 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] Fair-Rite Type 31 Mix Large Clamp-on Ferrite Cores
The ferrite cores have been sold. 73 Craig AC0DS __ 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] FS: Fair-Rite Type 31 Mix Large Clamp-on Ferrite Cores
I have for sale a quantity of 8 large Fair-Rite type 31 mix clamp-on cores. These are the best available cores for conveniently making high performance common-mode chokes over the HF amateur bands. Fair-Rite PN is 0431177081 and the Mouser PN is 623-0431177081. I purchased these new from Mouser over the past few years. Some have been used outside on temporary contest antennas, some used inside for noise suppression in shack and on appliances. Some have not been used. All are in perfect condition mechanically and electrically with at most some slight discoloration on the exterior plastic. Closing down the station here, so no longer have a use for them. Core OD is a little over 2 inches, ID is about 1 inch and length is about 1.7 inches. Can be used to easily make multi-turn chokes even on RG-8 sized coax. Please see K9YC’s excellent tutorial on his website for extensive applications information and reference designs. The current low quantity Mouser price for these is $19.70 each. Selling all eight for $120. Your purchase includes secure packaging and USPS Priority Mail shipping to your USA address. PayPal only, please. If interested, please contact me directly via email: craig (at) powersmith (dot) net. 73 Craig AC0DS __ 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] FS: GW Instek SFG-2110 Function/Signal Generator - Price reduced
I have for sale my GW Instek SFG-2110 10 MHz synthesized function generator. I purchased it new in 2007 and it has since seen light use in my non-smoking lab. Closing down lab in preparation for a move, so time to let it go. It is in absolutely mint condition and functions perfectly. This is a very versatile unit providing sine, square, triangle wave outputs at frequencies up to 10 MHz over a wide amplitude range. Amplitude and frequency modulation as well as sweep generator capabilities. Built-in frequency counter with operation up to 150 MHz. For complete specifications, see the Instek website. Your purchase includes the calibration certificate as well as the original manual, documentation and Instek box. Price is $250. Insured ground UPS shipping to the lower 48 will be from $18 to $26 depending on your distance from Colorado. Provide your zip and I will let you know the shipping charge. PayPal only, please. If interested, please contact me directly via email: craig (at) powersmith (dot) net 73 Craig AC0DS __ 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] FS: GW Instek SFG-2110 Function/Signal Generator
I have for sale my GW Instek SFG-2110 10 MHz synthesized function generator. I purchased it new in 2007 and it has since seen light use in my non-smoking lab. Closing down lab in preparation for a move, so time to let it go. It is in absolutely mint condition and functions perfectly. This is a very versatile unit providing sine, square, triangle wave outputs at frequencies up to 10 MHz over a wide amplitude range. Amplitude and frequency modulation as well as sweep generator capabilities. Built-in frequency counter with operation up to 150 MHz. For complete specifications, see the Instek website. Your purchase includes the calibration certificate as well as the original manual, documentation and Instek box. Price is $295. Insured ground UPS shipping to the lower 48 will be from $18 to $26 depending on your distance from Colorado. Provide your zip and I will let you know the shipping charge. PayPal only, please. If interested, please contact me directly via email: craig (at) powersmith (dot) net 73 Craig AC0DS __ 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] Astron SS-30M Power Supply
The Astron SS-30M has been sold. 73 Craig AC0DS __ 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] FS: Astron SS-30M Power Supply
I have for sale my Astron SS-30M power supply in perfect condition. This is ideal for powering a K3 class 100 watt rig, and provides 30 amps in amateur class service and 25 amps continuous duty. Metering of both output voltage and current. I bought this new in 2006 and it has since performed flawlessly in my K3 CW contesting setup. Quiet both electrically and acoustically. This unit has been modded to include amber LED backlighting of both meters. This provides attractive lighting so that the meter readings are visible in a dark environment. Light color is a good match to the K3 display. Your purchase includes the original Astron documentation and box. Price is $130 which includes USPS Priority Mail shipping to you USA address. PayPal only, please. If interested, please contact me directly via email: craig (at) powersmith (dot) net 73 Craig AC0DS __ 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] FS: Elecraft Mini-modules
I have for sale three Mini-modules. I built each of them and they are all in perfect condition. Closing down the shack and lab here in preparation for a move, so its time to do some major cleaning. Purchase includes all documentation as well as USPS Priority Mail shipping to your USA QTH. PayPal only, please. AT1 Step Attenuator - $47 N-Gen Wide Band Noise Generator - $47 XG-2 3 band, two level Test Oscillator - $61 Please contact me directly via email if interested:craig (at) powersmith (dot) net 73 Craig AC0DS __ 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] test
test __ 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] FS: Elecraft Mini-Modules
I have for sale three Mini-modules. I built each of them and they are all in perfect condition. Closing down the shack and lab here in preparation for a move, so its time to do some major cleaning. Purchase includes all documentation as well as USPS Priority Mail shipping to your USA QTH. PayPal only, please. AT1 Step Attenuator - $47 N-Gen Wide Band Noise Generator - $47 XG-2 3 band, two level Test Oscillator - $61 Please contact me directly via email if interested:cr...@powersmith.net 73 Craig AC0DS __ 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] OT: For Sale - Array Solutions AIM 4170 Antenna Analyzer plus extras
The AIM4170 has been sold. 73 Craig AC0DS __ 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] FS: Elecraft Mini-Modules
I have for sale three Mini-modules. I built each of them and they are all in perfect condition. Closing down the shack and lab here in preparation for a move, so its time to do some major cleaning. Purchase includes all documentation as well as USPS Priority Mail shipping to your USA QTH. PayPal only, please. AT1 Step Attenuator - $47 N-Gen Wide Band Noise Generator - $47 XG-2 3 band, two level Test Oscillator - $61 Please contact me directly via email if interested:cr...@powersmith.net 73 Craig AC0DS __ 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] OT: For Sale - Array Solutions AIM 4170 Antenna Analyzer plus extras
I have for sale my AIM4170 antenna analyzer SN 3049. I purchased this new in 2007 and it is in perfect working condition. This has been one of my best ever purchases and has been invaluable for both antenna and lab measurements. Am cleaning out the lab and shack in preparation for a move, so time to let this one go. This is perhaps the best antenna analyzer on the market, especially for use in the shack. It does require connection to a computer for control and display, but gives awesome results including ability to save and print analysis results in graphical form. The software allows for easy calibration at the far end of your coax run, and this capability permits you to see exactly what the antenna itself is doing without the effects of the transmission line - this feature alone makes this analyzer worthwhile. This has been a terrific asset here for designing and building many homebrew antennas. But I have actually used it much more often as a piece of lab gear. It provides a very useful signal generator with a range of 5 KHz to 180 MHz. The analyzer is quite handy for measuring the characteristics of filters and chokes as well as accurately measuring components at any frequency of your choice. Makes for a better L and C meter than anything available for less than $1000. Excell ent impedance measurements showing both series and parallel R, L and C components as well as phase angle. Very accurate for impedances up to 10 Kohms. Can also do TDR measurements. Too many features and functions to list here, but see the information available on the website - www.arraysolutions.com - for more detail. Look for model AIM4170C. The latest manual, etc., can also be downloaded here. This unit is the original version rather than the C version, but was upgraded last year by Array Solutions to be equivalent to the 4170C. Upgrade included installing the version 5.8 firmware and larger coupling caps for the extended low frequency response. Fully functionally equivalent to the 4170C. Only difference is that this unit still has the BNC output connector rather than the UHF connector shipped on newer units. I actually much prefer the BNC for lab work and for ease of connecting antennas. I'm also including the optional serial to USB converter. I have used this with my Dell computer and it has functioned perfectly with the AIM4170. This converter works with Windows XP or earlier. Converters for use with Vista or Windows 7 are readily available from Array Solutions as well as many other sources. Or, the 4170 can be used with any RS232 serial interface directly. I am also including a test jig I built for component characterization. This is a small box that plugs into the AIM output connector and offers several options for connecting components for easy and convenient measurement. There are Grayhill component clips for axial components, 0.1 inch headers for capacitors and radial leads, and a clip arrangement for attaching components in SMT packages. The AIM software allows for easy calibration for any of these attachment points to eliminate the strays of the test fixture. The jig also has a momentary switch to provide a short during the calibration process. Also included are some additional resistive standards I've used at the far end of coax runs as well as a Pomona BNC to banana plug adapter and 50 ohm termination. Your purchase also includes the AC wall adapter, all the original documentation as well as a collection of product reviews and application notes that I have found useful. Price is $440. PayPal only, please. Shipping via UPS insured ground in the lower 48 should be from $17 to $22 depending on your distance from Colorado. Please provide your zip and I can give you an exact quote on the shipping. If interested, please contact me directly via email: cr...@powersmith.net 73 Craig AC0DS __ 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] OT: For Sale - Clifton Labs Active Antenna System plus extras
The Clifton Labs antenna has been sold. 73 Craig AC0DS __ 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] OT: For Sale - Clifton Labs Active Antenna System plus extras
I have for sale a Clifton Labs Active Antenna system plus extras as will be described below. This is a receive-only active whip with a very small footprint and visual impact that is ideal for use with a K3 as a secondary vertically polarized antenna for diversity reception. Specified frequency range is 20 KHz to 30 MHz, but will receive up to 100 MHz with reduced performance. The system has two main components: A remotely located whip with a preamplifier at its base (Z1501D), and an in-shack control unit /antenna coupler (Z1203A). The antenna coupler requires the typical 13.8V nominal DC, but will operate over a wider range. The coupler unit supplies power to the remote preamplifier over the coax interconnecting cable. A control cable between the coupler unit and a transceiver can be used to turn off the antenna amplifier when transmitting (automatic muting). This will easily follow CW keying for QSK. It interfaces well with the K3 for this purpose. This product was designed by Jack Smith, K8Z0A, and is an example of the bullet-proof (both electrically and mechanically) products that he provides. I purchased this system new in 2010 and it has been performing flawlessly in my diversity RX setup. It has been a terrific addition to my CW contesting station which I am now in the process of decommissioning. The amplifier section is very robust. 3rd order output intercept is +40 dBm. 2nd order output intercept > +73 dBm. In addition to ham band usage, this antenna is great for SWL and broadcast band listening. For additional information, complete specifications, application notes, photos, etc. see the excellent Clifton Labs website: http://cliftonlaboratories.com The black whip antenna is adjustable from 22 to 112 inches in length so that you can adjust it for the sensitivity you desire. The whip and amplifier assembly can be mounted to a vertical pipe from 1 to 2 inches in diameter with the supplied U bolts. Or it can be screwed to a post or fence. I had mine attached to a perimeter wooden fence mounted about 6 ft above ground and it worked very well. I painted the external amplifier and mounting bracket with a textured medium gray/brown paint which gives a very stealth appearance if you live in an antenna restricted location such as mine. The transmitter control cable is terminated in RCA connectors. The power cable is set up with a PowerPole plug. All the signal cable connectors are BNC. The length and type of cable between the two units is very non-critical. It can be either 50 or 75 ohm. I used a combination of RG-58 and RG-8X, but even smaller cable such as RG-174 could be used as well as CATV 75 ohm cable. I added a three position switch and a yellow LED to the antenna coupler unit. The switch allows for manually turning the antenna on or off as well as using the automatic control for muting from a transmitter. The yellow LED shows the power state of the antenna amplifier itself, while the standard green LED shows when DC is connected to the unit. This setup provides some additional operational flexibility compared to the stock arrangement. I also designed and built some common-mode chokes to use in the coax between the two units. This addition, while not absolutely required, will allow for enhanced common-mode rejection of strong local signals. There is one small choke directly at the output of the remote amplifier. I am also supplying two other larger chokes, each packaged in water resistant enclosures with BNC connectors. Each of these chokes is comprised of 6 turns of coax on two type 31 large beads (Fair-rite PN 2631102002). This provides very good common-mode rejection from below 500 KHz to over 30 MHz. Test data are supplied. I mounted one of these midway in the coax run and the second one just before the coax entered the house. Each of these chokes has a connection to the coax shield on both sides of the inductor. These can be used to easily connect any of these points to a ground rod. This connection can be used to optimize the overall common-mode rejection, but experimentation will be require d as a function of your location, system layout and frequency of the common-mode signal you are trying to minimize. In my case, I had two of these points tied to ground. Note that the system will work well in most all cases without using any of these chokes! Your purchase includes the whip, remote antenna amplifier, in-shack antenna coupler/control unit, mounting hardware, all manuals and documentation, schematics, DC power cable, control cable for muting when transmitting, and the three common-mode chokes. You need only supply the coax interconnecting cable(s). This system currently sells for $290. My price is $200. PayPal only, please. Shipping via insured ground UPS should be from $15 to $20 depending on your lower 48 QTH. Provide your zip and I can give you the exact amount. If interested,
Re: [Elecraft] P3 for sale
The P3 has been sold. Thanks, everyone, for the interest. 73 Craig AC0DS __ 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] P3 for sale
In the process here of dismantling my station in preparation for an eventual move. Have for sale my mint condition P3 panadapter SN 67. I bought this new as a kit in 2010 and it has been operating flawlessly since then in my non-smoking shack. Comes complete with power, RS-232 and IF out cables, manual and documentation. I am also including a phono jack to PowerPole adapter cable so that you can either plug the power cable directly into a K3 or into a PowerPole power strip. Price is $550 via PayPal with immediate payment. Insured ground UPS shipping will be between $19 and $24 to the lower 48 depending on your distance from Colorado. Or pick up in Longmont, CO. If interested, contact me directly via email: craig (at) powersmith (dot) net 73 Craig AC0DS __ 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] K3 - panadapter or subreceiver
I have both with my K3. If I could have only one, it would definitely be the P3. The sub RX is great for diversity receive which helps a lot in CW contesting. But the P3, as other have pointed out, lets you quickly find where to place your signal when trying to find a good run frequency. For DXing, I think it is pretty much a tossup. But one aspect of the P3 that no one has recently mentioned is that it makes a SUPERB piece of test equipment when used with the K3. I don't have a dedicated spectrum analyzer but found that the P3 meets many of these needs. I use it when designing and characterizing filters. The ability to easily download and print out plots in full high resolution color is amazing. I often use it with the Elecraft noise source as an input signal. Of course I have the general coverage bandpass filters K3 option, which I highly recommend. And the K3's functionality as a calibrated tunable RF voltmeter is awesome as well. The P3 is also invaluable as a tool for tracking down EMI. You can see the type of signal and how it is moving in frequency vs. time. I use it for this both with the K3 and also as a portable battery powered standalone EMI receiver by setting the programmable IF frequency to the range of interest and using a small hand-held loop antenna. For anyone with an interest in home brewing and circuit design, I can't recommend the K3/P3 combo highly enough. 73 Craig AC0DS __ 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] KX3 Order
I can second Jack's recommendation of Wiha drivers. I've used a set here since 2006 and they are wonderful. 73 Craig AC0DS __ 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] New KAT500 pics from the Visalia DX convention
It boils down to personal preference, and I like BNCs. UHF seem really large and clunky to me, and I don't like having to unscrew them rather than just a small twist. One factor that other folks might not have is that I run strictly low power and the largest coax I have anywhere in my station is LMR-240 size. So using a large connector seems like overkill to me. I also invested in a good crimp tool and make all my own BNC cables and have yet to have a failure. So to me, there is zero downside to using BNCs. But I appreciate that others may have a different opinion. 73 Craig AC0DS __ 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] New KAT500 pics from the Visalia DX convention
I installed the Oak Hills BNC connectors in my K3 during the initial build 5 years ago. Great decision. Much more convenient and allows for rapid cable changes. Everything in my shack and antenna runs has been standardized with BNCs. 73 Craig AC0DS __ 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] FS: High Power Baluns
More shack cleaning here. I have for sale two baluns, both in excellent condition. I purchased them new and had used them occasionally for some temporary contest setups, but they have been inside and unused most of the time. Prices include manufacturer's printed documentation and shipping to your lower 48 USA address via USPS. PayPal only please. Additional detail available on the manufacturers' websites. Array Solutions model AS-50-L1This is a 50 ohm feedline isolator/choke. UHF female connectors on both sides. Stainless hardware. Gasketed NEMA plastic enclosure. Useful for minimizing common mode signals on 50 ohm transmission lines. 1.8 to 30 MHz. 5 KW continuous, 10 KW intermittent. $60 DX Engineering model BAL050-H10-ATThis is a 50 ohm choke balun with balanced outputs. Input terminal is female UHF. Balanced output terminals are ceramic insulators. Stainless hardware. Metal enclosure. 1.8 to 30 MHz. 5 KW continuous, 10 KW intermittent. This one is useful for feeding open-wire line.$75 If interested, please contact me directly via email:cr...@powersmith.net 73 Craig AC0DS __ 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] For the CW OPS
Steve has done some amazing things with mobile ham gear and computers, especially considering that much of his work was done in the 70s and 80s. Subsequent to his mobile recumbent bicycle projects, last I knew he was working on doing the same with kayak based sailing vessels with extensive computerized control. Steve stayed overnight with me on one of his cross-country bike trips around 1980 when I lived in upstate NY. We had a common interest both in long distance bicycle touring and ham radio. If you ever get a chance to hear him speak about his projects, I highly recommend the experience. 73 Craig AC0DS __ 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] Gamma Research HPS1-a Power Supply
The Gamma power supply has been sold. Thanks! 73CraigAC0DS __ 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] FS: Gamma Research HPS1-a Power Supply
I have for sale a Gamma Research HPS1-a power supply. This is a unique supply that is optimized for providing reliable power to a 100W class transceiver such as a K2 or K3 in the smallest and lightest possible package. It is thus ideal for portable operation, DXpeditions, etc. The supply architecture combines a traditional switching converter with a large ultra-cap to provide additional power capability for operating modes with less than 100% duty cycle. With my K3, this supply provides capability for output powers of 30-35W RTTY, 75W CW and 100W SSB. The unit is in mint condition and works perfectly. I'm selling it because I've curtailed my portable operation. The power supply weighs only 1.25 pounds! and is 3.4 by 1.6 by 5.2 inches in size. Output voltage is 13.8 Vdc nominal. Rated at 5A continuous and 22A at 25% duty cycle. For complete specs see: www.gammaresearch.net Your purchase includes the Gamma Research instruction sheet, an adapter to convert the Molex output connector to a standard PowerPole and insured USPS Priority Mail shipping to your USA address. Price is $155 via PayPal. If interested please contact me directly via email: cr...@powersmith.net 73 Craig AC0DS __ 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] FS CG-3000 Automatic Antenna Tuner - as is
The tuner has been sold. Thanks for all the interest. 73 Craig AC0DS __ 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] FS CG-3000 Automatic Remote Tuner - as is
I have for sale a CG-3000 Automatic remote antenna tuner. This unit is functional, and just recently removed it from an antenna that I am no longer using. I purchased the unit new in 2008 from Array Solutions and it has been working flawlessly since then in my application of tuning verticals and inverted Ls. It has been installed outdoors at the base of a tree in my back yard. I'm listing (and pricing it) as "as is" for two reasons. It has been out in the weather for over 3 years so cosmetically it isn't great. The label on the top surface, for example, is completely worn away. Secondly, when I just now tested it in preparation for selling, it seems to only obtain a SWR of 3:1 rather than the speced 2:1 on 10 meters. Only tested on one antenna and perhaps my K3 SWR metering isn't as accurate on this band. I've never used it on 10 meters, so don't have any historical reference point. It works fine on the other bands, matching a 37 ft vertical to SWRs from 1.1 to 1.6 on all bands 80 through 12 meters. I've used it successfully in the past on 160 meter inverted Ls. The unit is completely automatic. It tunes by sampling the RF input, and requires a minimum of 10W and is therefore not suitable for QRP. I have the tune power of my K3 set to 13W and this has always worked just fine. It has 200 memories for storing previous frequencies so subsequent tuning is very fast. Power rating is 200W. Rated to operate from 1.8 to 30 MHz. Requires 12 to 14 Vdc power supply. I've been just running a two conductor cable for this purpose, but you could also use a bias-T on the coax. Average operating current is 0.5A, but you should have up to 1A available for instances when several of the tuning relays activate at once. For additional information see www.cgantenna.com and also the eham reviews. Just now opened it up again and verified that everything inside is in pristine condition. Absolutely no sign of water intrusion, probably due to the good gasketing of the top cover. Original owners manual (sparse) is included as well as some additional technical and applications info I've found on the web. It appears possible to construct a control head to manually initiate tuning via a 3 conductor power/control cable, but I have not tried this. This unit should provide an inexpensive but serviceable remote tuning solution for many applications. Not in same league as the upcoming KAT500, however. Price is $100 via PayPal plus UPS ground shipping. Shipping weight should be 7 pounds from 80503 zip. If you have interest or questions, contact me directly via Email. 73CraigAC0DS __ 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] Items for Sale
The MH-2 mic, BL-2 and 4:1 BL-1 have been sold. 1:1 BL-1, dummy load and headphones still available. 73 Craig AC0DS > > Doing some shack cleaning, and have the following mostly Elecraft items for > sale. All prices include insured USPS Priority Mail shipping to your US > address. US sales only, please. Payment via PayPal. Can save some $$ with > combined shipping on purchase of multiple items. Contact me directly via > email if interested. > > All items are in mint or like-new perfectly operating condition and include > all original documentation. > > Elecraft MH-2 hand mic. Includes mounting bracket and hardware and original > box. Only used once when I first got my K3 to verify that SSB worked! $ 50 > > Elecraft BL-2 switchable 1:1 4:1 250W balun $ 34 > > Elecraft BL-1 1:1 150W balun $ 20 > > Elecraft BL-1 4:1 150W balun $ 20 > > Elecraft SL-1 20W dummy load $ 23 > > Japan Radio Corporation ST-3 Mono headphones. These are the perfect phones > for mono usage on CW and SSB. VERY comfortable for extended contest use. > These are in perfect condition. 5 ft cord terminated with ¼ inch mono phone > plug. Rated at 600 ohms impedance. Measure 82 ohms at DC. These work very > well with any of the Elecraft rigs if you don't need stereo audio. I bought > these new from Universal Radio 6 years ago and they have since been > discontinued. If I wasn't into diversity reception, I'd still be using them! > Shipped in original box. $ 83 __ 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] Items for Sale
Doing some shack cleaning, and have the following mostly Elecraft items for sale. All prices include insured USPS Priority Mail shipping to your US address. US sales only, please. Payment via PayPal. Can save some $$ with combined shipping on purchase of multiple items. Contact me directly via email if interested. All items are in mint or like-new perfectly operating condition and include all original documentation. Elecraft MH-2 hand mic. Includes mounting bracket and hardware and original box. Only used once when I first got my K3 to verify that SSB worked! $ 50 Elecraft BL-2 switchable 1:1 4:1 250W balun $ 34 Elecraft BL-1 1:1 150W balun $ 20 Elecraft BL-1 4:1 150W balun $ 20 Elecraft SL-1 20W dummy load $ 23 Japan Radio Corporation ST-3 Mono headphones. These are the perfect phones for mono usage on CW and SSB. VERY comfortable for extended contest use. These are in perfect condition. 5 ft cord terminated with ¼ inch mono phone plug. Rated at 600 ohms impedance. Measure 82 ohms at DC. These work very well with any of the Elecraft rigs if you don't need stereo audio. I bought these new from Universal Radio 6 years ago and they have since been discontinued. If I wasn't into diversity reception, I'd still be using them! Shipped in original box. $ 83 73 Craig AC0DS __ 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] Source for Type 31 Toroids
Fair-rite On 10, Feb2012, at 2:10 PM, Dick Stein wrote: > Hi Craig: Who is the vendor "They" when you say "they have a selection"? > Dick, K2ZR/4 __ 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] Source for Type 31 Toroids
Good Deal Ken. Also they have a selection of type 31 clamp-on cores listed under Snap-Its. 73 Craig AC0DS On 10, Feb2012, at 1:45 PM, Ken Alexander wrote: > Son of a gun! I was right there but I was fooled by the illustration of the > bead. I left the page when I thought I was looking at beads and never did > check the dimensions, but there they are! > > > __ 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] Source for Type 31 Toroids
Hi Ken … Just checked the Fair-rite website, and the type 31 cores are indeed there. But they aren't easy to find. You need to go to Products then Cable components then EMI suppression beads. They have a wide variety of part numbers using type 31 material. I buy mine from Mouser which has no minimum order quantities, good stocking, reasonable prices and wonderful delivery and service. I can't speak to their service to Canada. I've bought many different PNs of type 31 from them. After you find the PNs you are interested in from the Fair-rite site, do a search on those PNs in the Mouser site. Have fun & 73 … Craig AC0DS __ 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] P3 and CW signal not aligned perfectly
Perhaps coincidentally, yesterday my P3 was also off by 30 Hz based on the carrier frequency of BCB stations. It had been dead-on since I calibrated it over a year ago. Haven't had time to explore further, but will recalibrate if this persists. 73 Craig AC0DS Craig Smith 1009 Alder Way Longmont, CO 80503 cr...@powersmith.net 303-834-7712 On 24, Jan2012, at 8:31 AM, nr4c wrote: > On the P3 there is a menu function to calibrate the frequency. Do this > and you can set it perfectly. > > ...bc > > On Tue, 24 Jan 2012 07:07:52 -0800 (PST), N0SA wrote: >> I have a K3 with the P3 panadapter. >> When I properly tune a CW signal in and us the SPOT and CW indicator >> I >> notice that it is not centered in the P3 display. If I center it then >> it is >> off by about 30 Hz. >> It shows the same offset if I change filters and go to REV CW. >> My SHIFT is centered. >> Is this normal or do I need to check and adjust something? >> Thanks >> Larry Naumann N0SA >> >> >> -- >> View this message in context: >> >> http://elecraft.365791.n2.nabble.com/P3-and-CW-signal-not-aligned-perfectly-tp7220640p7220640.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 > > __ > 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] [K3] K3 preamp sufficient for K9AY?
Unless you live in a very quiet area, you won't need a preamp, Jim. My K9AY is smaller than average and even with its lower sensitivity I have never needed an external preamp. In fact, I normally have the K3 internal preamp OFF on 80 and 160. Even use the attenuator or back off the RF gain sometimes. 73 Craig AC0DS > __ 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] Resistance Checks on pg. 45 (K3)
I have a functioning K3 here and also a Fluke 115, which is quite similar to the 117. On the ohms range the meter reads OL. On the Kohms range it reads about 4 Kohms. I think Don is right and it is OK to proceed. If your reading was substantially LESS than 4 K I would be concerned. 73 Craig AC0DS > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 and KAT500 Ports
I certainly understand the impracticality in terms of cost and size of designing the basic KAT500 with a large number of output ports. My personal wish is that an optional external Elecraft unit will eventually be available that will allow for port expansion based on the user's desire for number and configuration. It should be waterproof (or easily made so) and controlled by the same bus as the external KAT500. 73 Craig AC0DS > __ 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] KE7X K3 Book 20% saving
Thanks, everyone, for the useful info in the book options. I decided to go with the PDF version. Based on my quick browse through it, it looks like lots of helpful information nicely arranged. I'll move the PDF to my IPad for convenient searching and probably print out only selected sections for a hardcopy reference. 73 Craig AC0DS Craig Smith 1009 Alder Way Longmont, CO. 80503 303-834-7712 On Jun 25, 2011, at 9:49 AM, Rose wrote: > Cover is in color ... text and inside photos are B/W > > 73! Ken - K0PP > On Sat, Jun 25, 2011 at 8:28 AM, Bill W4ZV wrote: > >> >> Bill W4ZV wrote: >>> >>> Yes...B/W only. >>> >> >> Sorry...should have said the .pdf download is B/W only...don't know about >> the printed version. >> >> 73, Bill > __ > 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] K3: KE7X K3 book
Looks very interesting Fred - thanks! Question: what is your plan for later revisions? If ordering a PDF are later revisions included with the purchase? If ordering a printed bound copy do you also get PDF access? 73 Craig AC0DS > __ 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] "Shortening" a min-module PC board., how to...
Another option that will work for a straight cut and not subject the pcb to lots of vibration is just a hacksaw. 73. Craig. AC0DS > __ 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] K3 needs survey -- firmware and application software
Two items here: RX EQ by mode - or at least one separate setting for CW! Build as much flexibility and functionality as humanly possible into the P3, even if much of it is optional. Perhaps the last near-term opportunity to add major hardware to the K3 and provide extra switches and operator interface capabilities. Thanks for a GREAT product! Happy holidays and 73. ... Craig AC0DS -Original Message- From: "W4GRJ" [w4...@satterfield.org] Date: 23/12/2009 11:41 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 needs survey -- firmware and application software Wayne, Even though I am a brand new K3 owner (received last week), we really need a software program to manage memories. Need to read and write to the K3, freq, mode, offset for fm repeater work This is really basic to radios I have had for over 5 years….anyway, hope this makes the priority list. Thanks for a great Radio! Jack W4GRJ wayne burdick wrote: > > Hi all, > > As you probably know, we keep a list of firmware features and > improvements to be added as time permits. Many of the most-requested > changes were made over the past several months, keeping pace with the > demands of the fall/winter contest season. (A few that come to mind: > switch sequence automation via macros, improved DVR interaction with > PTT, main/sub audio mixing, improved NR, lockable transmit controls, > and many enhanced remote-control commands.) > > As we head into 2010, we'd like to refresh the master firmware list > based on your input. Items already on the list have priority, of > course, but this is a great opportunity to let us know what else is > missing or could be improved. Our goal is to make the K3 as easy to > use as possible, while providing the advanced features you need for > specific operating situations. > > We're also planning a renewed effort to assist application software > developers. If your ideas for improvements involve changes to both K3 > firmware and a favorite application, we'll pass it along to the > developers and work with them closely. > > We're making great progress on the P3 Panadapter and other new > products. There will be some surprises in 2010 :) > > 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 > > -- View this message in context: http://n2.nabble.com/K3-needs-survey-firmware-and-application-software-tp4209832p4209992.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 __ 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] amplified speakers 'comspkr' west mountain radio
Add another positive vote for these speakers. I've been using them with my K3 after trying others, including non-powered speakers. I find them to be perfect for my use. Never a hint of any RF issues, and they sound GREAT with the K3. Nice and small, including the price. 73 Craig AC0DS -Original Message- From: "W0SZ" [zumbr...@comcast.net] Date: 22/12/2009 07:47 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] amplified speakers 'comspkr' west mountain radio I too have used these speakers for 1 ½ years and they have been excellent with no RF with 1500 watts out. I highly recommend them. W0SZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 RS232 Utility Problem
Great news! I went ahead this afternoon and uploaded the new firmware, and it went smooth-as-silk. Now running level 3.14 w/o any problems. Must just have been an incompatibility between the new utility and the older firmware when doing configuration saves. Thanks again to everyone for all the help. Look for my up-to-date K3 on Field Day ;>) 73 Craig AC0DS __ 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] KPA-200
I'm with you on this one, Keith! I'm a low power CW contester and would surely enjoy using the 150 or 200 W power limit when appropriate instead of accepting the db or so of loss with my 100W K3. I have NO interest in running a KW, however, so high power amps have no appeal here. A small amp with internal power supply with 200W or more capability would be quite interesting. For my purposes it wouldn't even need to be linear. As someone else pointed out, class C, D or E could make for an interesting design! 73 Craig AC0DS __ 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] OT - SteppIR Vertical and Elecraft Products
I think you have arrived at a good understanding of the benefits/limitations of both the StepIR and the remote tuner approaches. I use the remote tuner approach, but would think that the StepIR should give similar results. And, as you point out, the total costs of the two approaches are somewhat similar. Most of the manual labor is involved with the radial field, which is a constant for any approach. There are a couple of less expensive alternatives if you are mostly interested in a couple/few bands rather than the complete 80 thru 10 range. All of these vertical element heights can be attained with a light weight fiberglas mast of at most 40 ft. This is easy to put up and take down. I can do mine in less than 2 minutes. So the least expensive approach would be to use different element lengths for your bands of interest and making them resonant so that no tuner is required. Another option would be to use the 43 ft height and customized relay selected matching networks in an enclosure at the base for your bands of interest - say 40, 30 and 20. This is fairly easy to accomplish at the 100W level. If the number of networks is reasonable (3 in this example), this customized tuner can be constructed for significantly less expense than purchasing a new autotuner. In this example you could reduce expenses further by making the vertical resonant on 30 and using only two matching networks for 40 and 20. 73Craig AC0DS __ 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] External speakers for K3
I've been quite pleased with the Comspkr from West Mountain Radio. Good sound, small size, volume and low cut controls, no RFI and a pair is quite reasonably priced. 73 Craig AC0DS __ 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] K1: Advice on Options
I prefer the smaller tuning range, Dave. Makes for much easier tuning. FYI, the advertised tuning ranges are only approximations. Mine ended up at about 85 KHz, which is fine. The internal tuner would be convenient. I use the external T1 tuner instead, as it has the capability to match a wider range of loads. I use external AGM battery packs of various sizes, and am quite happy with this arrangement. In place of the power connector I brought out a short pigtail cable through a grommet and terminated with a PowerPole connector. This is a slick setup. One option you didn't mention that I really like is the stand. It's kind of heavy, but provides a very sturdy base with lots of adjustability for various operating positions both in the shack and in the field. 73 ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: KRX3 question
Thanks, Eric, for the update. This is exactly the kind of info I was hoping for from Elecraft on the diversity filter issue. Now I can complete the process of finalizing my RX3 and filter order to complement my existing 5 pole filters. The $30 fee for matching to the offsets I already have is reasonable enough. ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Hoisting Line for wire antennas
It's even better than Rich indicated. Just visited the site, and the price is now $23. Not really shown on the web page, but apparently the second spool is only $15. I ordered two 1640 foot spools in different colors for total of $38. Should last me till I die and then some!- Thanks Rich! 73 ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
