Re: [Elecraft] K3 Low Pass Question
It begs the question what we should do with the 1000s of LP filters out there. Some are built very well, like my Drake, but I also have a couple made of bent tin. There was a QST article on them a few years ago showing different construction styles and quite intriguing how costs could be reduced. I was idly wondering if I should convert them to something useful, perhaps to a band pass filter. There's room to fit small toroid inductors instead of the solenoid types. Then again, with the Elecraft line up I probably wouldn't benefit much, but it would be an interesting project. David G3UNA Well, after getting a handful of replies, I'm opting to NOT put the low pass filter in the line. Had totally forgotten about most of 'em having a cutoff at 30 MHz, and sooner or later I'm gonna give six meters a try. Thanks for the replies folks! 73, Jim / W6JHB __ 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 Low Pass Question
It begs the question what we should do with the 1000s of LP filters out there. Some are built very well, like my Drake, but I also have a couple made of bent tin. There was a QST article on them a few years ago showing different construction styles and quite intriguing how costs could be reduced. They are somewhat useful as low pass filters for some or many high power HF RF amplifiers, and with many older tube type or hybrid radios with pi-network outputs. They are also useful for systems having active T/R switches like this one: http://www.w8ji.com/johnson_tr_switch.htm I looked back through some amplifier tests, and the worse case harmonic or spurious on the solid state ALS1300 above 30 MHz was a level less than -60.4 dBc with a carrier level of 1200 watts. That was one pip just out of analyzer noise that could have been a mixer product in the analyzer! HF rigs like the K3 look just as clean or cleaner. Some harmonics in tube type amps are not nearly that well suppressed, and my data on older gear from the 1970's and earlier indicates they could result in a substantial improvement in VHF harmonic suppression from some 30-watt output transmitters. Those old 30-100 watt output transmitters exceed the absolute harmonic power levels produce by newer 1500 watt amps. :-) I'd say save them in case you get an old boatanchor, because converting them to something else like an HF bandpass would only yield the sheet metal and connectors as recyclable. Then of course nearly all low-band VHF TV transmitters are gone over here. There are none within range of me, even those that someone said were on. :-) 73 Tom __ 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] LDG
On 6/17/2010 8:40 PM, R. Kevin Stover wrote: Exactly. I'd believe $100M in the amateur (HF and VHF/UHF), commercial, maritime, and aviation markets combined. I'd love to know how many HF rigs they sell per year. On 6/17/2010 4:04 PM, Brett Howard wrote: Actually the K3 can sell a LOT less than 100Million and be on par with the number of IKY's sold. While Elecraft is a Ham Radio only organization IKY make a lot of money selling communications products to completely unrelated sectors. ~Brett No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2944 - Release Date: 06/17/10 11:33:00 Hi all, For those inquiring minds who really want to know and would be willing to do a little bit of work to find out, a web site could be set up where anyone with an IKY radio purchased new could enter the radio model, date of purchase and serial number. Accumulating enough of these data points would give a trend of how many radios were sold per unit time. Because the HROs and AESs would probably buy quantities of radios at one time and not sell them in serial number order, the data would have to be analyzed over longer periods of time. Having the origin of the purchase may be informative as well. The name and call sign is something said data base should NOT have for many reasons. If I were a buyer, I would love to know how many units of a given radio had been sold. It might influence my purchase decision. If I were looking for a used unit, I would have a sense for the likelihood of finding a used radio of a given model. My goodness this sounds like something a company in the HAM radio market might find useful for deciding what products might make sense and where there may be opportunities. If someone like ARRL or eham were to collect this data, it would be valuable public information for everyone in the HAM radio market, buyer and seller. Don, N0YE __ 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 Low Pass Question
David, A Low Pass filter cutting off above 6m is useful here, because our not so local FM BC station operates just above 100 MHz. I suggest that if you do convert a LPF, do not use small toroidal inductors (unless air wound) if the filter is to be used between a receiver and an antenna feeder. Small cores can create IMD problems ftom BC stations etc, which is one reason why the solenoid type of inductor is used. 73, Geoff GM4ESD David Cutter wrote on Friday, June 18, 2010 9:27 AM: I was idly wondering if I should convert them to something useful, perhaps to a band pass filter. There's room to fit small toroid inductors instead of the solenoid types. Then again, with the Elecraft line up I probably wouldn't benefit much, but it would be an interesting project. __ 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 Low Pass Question
I lived 1500' from an am/fm/tv broadcast hotspot in Cincinnati and enough rf came in the pipe to activate the reverse-power cutback/shutdown on a TS440. A Johnson MatchCarton or a generic lopass would take care of the situation. Had rfi from 1360-am and 700-am with '1000D's. An ICE ambc-rejection filter took care of that one. If you are open to experimenting and have 2 antenna connectors on your K3, putting 6M to one and hf and the lpf on the other might scratch the itch. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Low-Pass-Question-tp5188094p5194994.html Sent from the [K3] 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] New K3 shematic
Just found the june 2020 K3 shematic. I´m looking forward to some nice reading...K144XV is included. Thanks Elecraft! Jan -- View this message in context: http://elecraft.365791.n2.nabble.com/New-K3-shematic-tp5195072p5195072.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] K3 transmit out of ham bands?
Will the K3 transmit out of the ham bands? If so how is that implemented? -- GB 73 K5OAI Sam Morgan __ 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 transmit out of ham bands?
On 6/18/2010 7:39 AM, Sam Morgan wrote: Will the K3 transmit out of the ham bands? If so how is that implemented? never mind, just found it: http://www.elecraft.com/K3/K3FAQ.htm#MARS -- GB 73 K5OAI Sam Morgan __ 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 K3 shematic
I'm dying to see it. 73 Val LZ1VB Just found the june 2020 K3 shematic. __ 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 K3 shematic
On 6/18/2010 8:04 AM, Val wrote: I'm dying to see it. that would be: http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf -- GB 73 K5OAI Sam Morgan __ 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 Low Pass Question
Hi Geoff I didn't know that about small cores, but, if I were to take on this idea, I would use the biggest I could get in there, which is around 45mm. There's a local radio station on medium wave which has given me grief in the past, (pre K3 mind you) and I could change it into a high pass filter just for that. Come to think of it, I wonder if I could make such a filter for use with the MFJ259; that might be a better idea. David G3UNA David, A Low Pass filter cutting off above 6m is useful here, because our not so local FM BC station operates just above 100 MHz. I suggest that if you do convert a LPF, do not use small toroidal inductors (unless air wound) if the filter is to be used between a receiver and an antenna feeder. Small cores can create IMD problems ftom BC stations etc, which is one reason why the solenoid type of inductor is used. 73, Geoff GM4ESD David Cutter wrote on Friday, June 18, 2010 9:27 AM: I was idly wondering if I should convert them to something useful, perhaps to a band pass filter. There's room to fit small toroid inductors instead of the solenoid types. Then again, with the Elecraft line up I probably wouldn't benefit much, but it would be an interesting project. __ 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 Low Pass Question
On 2010-06-18 12:18, Tom W8JI wrote: Then of course nearly all low-band VHF TV transmitters are gone over here. There are none within range of me, even those that someone said were on. :-) 73 Tom Gone here too. But we have the FM BC band around 100 MHz so they could be useful. I remember back in the 70´ties having problem with the 7:th harmonic from 14 MHz, used T-4XB/C transmitters and a 4-1000A amp, those where the days! / Jim SM2EKM __ 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 assembly: split lockwasher: #4 same as 4-40 ?
K3 manual Rev L, page 16, references 4-40 split lockwasher and #4 split lockwasher Are these the same? All the inventory pages say #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] K3 Low Pass Question
Hi David, If of any interest to you I can send you off List some results of my most recent two tone IMD tests on bandpass filters for use in a receiver's front end, which would give you some idea of the effect of a core and its size. These show each filter's 3rd order Output Intercept vs. core size vs. some core mixes. Bands covered are 160m to 6m inclusive. Please let me know off List if you are interested. 73, Geoff GM4ESD From: David Cutter wrote on Friday, June 18, 2010 2:47 PM: Hi Geoff I didn't know that about small cores, but, if I were to take on this idea, I would use the biggest I could get in there, which is around 45mm. There's a local radio station on medium wave which has given me grief in the past, (pre K3 mind you) and I could change it into a high pass filter just for that. Come to think of it, I wonder if I could make such a filter for use with the MFJ259; that might be a better idea. David G3UNA __ 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 assembly: split lockwasher: #4 same as 4-40 ?
Andrew: Yes they are the same. 73, Doug VE3MV Date: Fri, 18 Jun 2010 11:38:18 -0400 From: andrew.n...@gmail.com To: elecraft@mailman.qth.net Subject: [Elecraft] K3 assembly: split lockwasher: #4 same as 4-40 ? K3 manual Rev L, page 16, references 4-40 split lockwasher and #4 split lockwasher Are these the same? All the inventory pages say #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 __ 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 assembly: split lockwasher: #4 same as 4-40 ?
Andrew, They are the same, although for a washer or lockwasher, the 4-40 is a misnomer, the #4 designation for the hole size is correct, but the -40 refers to the thread pitch, and there are no threads in a washer. Just for additional information, most of the screw hardware in the K3 is 4-40 although there are a few 2-56 size. There is a big difference in the diameter, so you are not likely to mix the two. 73, Don W3FPR Andrew Moore wrote: K3 manual Rev L, page 16, references 4-40 split lockwasher and #4 split lockwasher Are these the same? All the inventory pages say #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
[Elecraft] K1/K2/K3 assembly trivia
It's already been pointed out that 4 in 4-40 defines to the size of the screw / hole, and 40 is the threads-per-inch specification. There are three kinds of lock washers used in Elecraft kits and each has a specific application. The split is obvious, and there are both internal and external tooth lock washers. Elecraft does a good job of illustrating the differences with the photographs in the assembly manuals. 73! Ken Kopp - K0PP elecraftcov...@rfwave.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
Re: [Elecraft] K3 Low Pass Question
This topic greatly interests me, because I have never found saturation or non-linearity in typical cores an issue. This might be an opportunity to explore something new that I have never seen. - Original Message - From: David Cutter d.cut...@ntlworld.com To: Geoffrey Mackenzie-Kennedy gm4...@btinternet.com Cc: Elecraft Discussion List elecraft@mailman.qth.net Sent: Friday, June 18, 2010 9:47 AM Subject: Re: [Elecraft] K3 Low Pass Question Hi Geoff I didn't know that about small cores, but, if I were to take on this idea, I would use the biggest I could get in there, which is around 45mm. There's a local radio station on medium wave which has given me grief in the past, (pre K3 mind you) and I could change it into a high pass filter just for that. Come to think of it, I wonder if I could make such a filter for use with the MFJ259; that might be a better idea. David G3UNA David, A Low Pass filter cutting off above 6m is useful here, because our not so local FM BC station operates just above 100 MHz. I suggest that if you do convert a LPF, do not use small toroidal inductors (unless air wound) if the filter is to be used between a receiver and an antenna feeder. Small cores can create IMD problems ftom BC stations etc, which is one reason why the solenoid type of inductor is used. 73, Geoff GM4ESD David Cutter wrote on Friday, June 18, 2010 9:27 AM: I was idly wondering if I should convert them to something useful, perhaps to a band pass filter. There's room to fit small toroid inductors instead of the solenoid types. Then again, with the Elecraft line up I probably wouldn't benefit much, but it would be an interesting project. __ 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 Low Pass Question
On Fri, 18 Jun 2010 05:04:28 -0700 (PDT), David Windisch wrote: I lived 1500' from an am/fm/tv broadcast hotspot in Cincinnati and enough rf came in the pipe to activate the reverse-power cutback/shutdown on a TS440. A Johnson MatchCarton or a generic lopass would take care of the situation. Yes, depending on their circuitry, some antenna tuners may help reject out of band signals and harmonics. Had rfi from 1360-am and 700-am with '1000D's. An ICE ambc-rejection filter took care of that one. Good advice. The ICE filters are not the world's greatest, but the AM BC filter is fairly good. I needed one when I lived in Chicago, and the two that I own measure fairly well. If you buy one, DO check it for proper tuning -- I've seen significant QC problems with several filters I've bought directly from ICE. 73, Jim Brown 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
[Elecraft] Antenna for a KX1
Having acquired a beautiful KX1 from a very kind and patient member of this list, I am ready to test it out and get it ready for travel. Elecraft's FAQ page states: What we recommend in the KXAT1 manual for 40-20 m is about 24' of #26 insulated copper-clad steel antenna wire (available from The Wireman), used as a vertical or sorta-vertical radiator. You'll also need at least one ground radial, 16' or longer (more on that below). The wire can be tossed into a tree, or, if a tree is not available, supported by a portable mast or other support. The 24' length can be loaded on all three bands (20, 30 and 40 meters), and the wire itself weighs under 1 ounce. For 80, they recommend: For 80 m, a resonant antenna is recommended. It should be possible to use an 80 m antenna on multiple bands. A loading coil is another possibility to get a shorter antenna running on 80 m. What recommendations are there for a travel/portable antenna. I plan to use it from hotel rooms around the country as I travel for work. So far, I purchased two 100-foot rolls of 24 gage. Thank you very much. arnie __ 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] Antenna for a KX1
One of the best and most overlooked things about the KX1 is its *EASE OF SETUP*. Unlike other rigs, even the K1, the KX1 is like no other in that when you think about getting on the air, you can actually do it in literally minutes, if not a minute. I found the recommended antenna setup of a longwire and even just one counterpoise was the best way to go. Yes you can get better antennas but they defeat the ease of setup, and the recommended one simply works. String it up anywhere. In the house, outside the house, along the ceiling, wherever.. then just enjoy the KX1. I recommend you get the BNC to binding post adapter (Palomar or something.. google it), as it makes setup and operation with longwire antenna and counterpoise very simple. Enjoy your KX1! --Andrew, NV1B .. On Fri, Jun 18, 2010 at 1:16 PM, arnie lewin w7...@cox.net wrote: Having acquired a beautiful KX1 from a very kind and patient member of this list, I am ready to test it out and get it ready for travel. Elecraft's FAQ page states: What we recommend in the KXAT1 manual for 40-20 m is about 24' of #26 insulated copper-clad steel antenna wire (available from The Wireman), used as a vertical or sorta-vertical radiator. You'll also need at least one ground radial, 16' or longer (more on that below). The wire can be tossed into a tree, or, if a tree is not available, supported by a portable mast or other support. The 24' length can be loaded on all three bands (20, 30 and 40 meters), and the wire itself weighs under 1 ounce. For 80, they recommend: For 80 m, a resonant antenna is recommended. It should be possible to use an 80 m antenna on multiple bands. A loading coil is another possibility to get a shorter antenna running on 80 m. What recommendations are there for a travel/portable antenna. I plan to use it from hotel rooms around the country as I travel for work. So far, I purchased two 100-foot rolls of 24 gage. Thank you very much. arnie __ 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] Antenna for a KX1
I like the near end fed which uses a small 1:4 turns ratio (1:16 Z ratio) toroid at 10% from the end of a half wave dipole (for whatever band). Put the transformer (and tuning cap if needed) into a film canister. This makes the coax length shorter/lighter for a lot of situations. Being shorter, the coax could be RG174 (the very thin stuff) and ignore the loss. Lightweight means safer if it comes unhitched from its mounting, so reduced risk of damage for anybody or anything underneath if you are operating from hotel bedroom. The other one I like is the zip cord antenna: you just strip apart the figure-of-8 cord until you get to the half wave dipole size you want. Very lightweight and ok loss on the line if it's not too long. David G3UNA What recommendations are there for a travel/portable antenna. I plan to use it from hotel rooms around the country as I travel for work. So far, I purchased two 100-foot rolls of 24 gage. Thank you very much. arnie __ 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] LDG
IMHO, For those starting out who do not realize there is such a thing as performance differences and want everything in the cheapest package they can buy, there are the small box 100w mobiles availabe for 699 I think. That creates a lot of sales to first timers. They are looking at 699 vs 2149 assuming they want somebody else to assemble it too. Different market. Larger product line (NO, I don't think Elecraft should build a 699 radio). Y,I, the Big 2?, Y,I K, the Bir 3? ELECRAFT the BIG ONE. 73, de Jim KG0KP - Elecraft RULES - Original Message - From: Brett Howard br...@livecomputers.com To: w...@w5ov.com Cc: Edward R Cole kl...@acsalaska.net; elecraft@mailman.qth.net Sent: Thursday, June 17, 2010 4:04 PM Subject: Re: [Elecraft] LDG Actually the K3 can sell a LOT less than 100Million and be on par with the number of IKY's sold. While Elecraft is a Ham Radio only organization IKY make a lot of money selling communications products to completely unrelated sectors. ~Brett On Thu, Jun 17, 2010 at 12:32 PM, w...@w5ov.com wrote: You can't argue with the numbers. And while Eric and company would like to be a $100 million company, I think they have some way to go to reach that level. The reason you run into others with the K3 is that you are here in the U.S. and many of those folks are like-minded with you and I, looking for the best performing radio available. Remember, there are a lot of people who are not even aware of the K3 and only consider I/Y/K radios. None of what I said in any way should be construed to be negative about the K3 - it's just that the number of them sold in no way compares to what Icom and Yaesu (and Kenwood) sell world-wide. $100 million in K3 terms = about 25,000 of them annually. We all know that there are not even close to 25,000 K3's out there. As further evidence of my personal perspective, my K3 occupies the spot where my 756Pro3 used to be and I have no regrets. In fact, I just used it for the first time on 6m last weekend in the VHF test and it worked very well - even without the optional preamp on 6m. 73, Bob W5OV First off my K3/10 is what most consider QRP. I use a used MFJ-945E tuner on 80-6m (also used when I ran my FT-847 on HF). Supposedly rated to 300w (?) but I do not have anything that runs that high built. But, mainly, I want to respond to the K3 types are devoted and loyal, we're just a drop in the bucket of the world-wide amateur market statement. Really? Then why do I run into all these K3 owners on the many e-mail reflectors, I inhabit? I can say the K3 is very well though of and gaining popularity with the VHF+, EME, and microwave crowd! To say they are in the lead for ultimate weak-signal operations, and the K3 is considered one of the best (if not the best) for that. and that is why I own one. 73, Ed - KL7uW hint uW = microwave -- Message: 43 Date: Thu, 17 Jun 2010 08:14:31 -0500 From: Bob Naumann w...@w5ov.com Subject: Re: [Elecraft] LDG To: Elecraft@mailman.qth.net Message-ID: 013701cb0e1f$05dd5f00$11981d...@com Content-Type: text/plain; charset=US-ASCII For a moment, consider that what the LDG rep says may be true. I suspect that it is, given the incredible advertising promotional budgets that Icom and Yaesu apparently have from sales of their products. While Elecraft is clearly doing well and they're growing, it is also clear that these long-standing manufacturers (I,Y) are selling lots more radios. A quick Internet search shows that it is estimated that Icom USA (Note: This is USA only) has sales revenues on a yearly basis of between $50 million and $100 million. Then, add whatever Icom is doing in the rest of the world, and you begin to get the picture of how big these companies are in comparison. What this tells us is that while us K3 types are devoted and loyal, we're just a drop in the bucket of the world-wide amateur market compared to the big two. (Kenwood doesn't count until they come out with a real radio - then it once again may be the 'big 3'). 73, W5OV 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubus...@hotmail.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
Re: [Elecraft] Antenna for a KX1
Arnie, Try the recommended lengths first. While they are not optimum for any one band, they certainly are known to work. Just throw the *insulated* wire over whatever support is available and connect it to the BNC center conductor - the 16 foot counterpoise wire connects to the BNC shell. A BNC to 5 way binding post adapter is handy for making the connections. For those occasions when weight and extreme portability are not critical, you might want to add a collapsible pole to your kit to be used as a support for the radiator portion when other supports are scarce or difficult to hang an antenna from. Use a bungy cord or two to secure the pole to just about any upright object. Once you have something that you know will work, then you can expand your horizons and try other antenna configurations if you desire. There are no best antennas for any particular situation, use what works best for you and whatever constraints that you are facing. 73, Don W3FPR arnie lewin wrote: Having acquired a beautiful KX1 from a very kind and patient member of this list, I am ready to test it out and get it ready for travel. Elecraft's FAQ page states: What we recommend in the KXAT1 manual for 40-20 m is about 24' of #26 insulated copper-clad steel antenna wire (available from The Wireman), used as a vertical or sorta-vertical radiator. You'll also need at least one ground radial, 16' or longer (more on that below). The wire can be tossed into a tree, or, if a tree is not available, supported by a portable mast or other support. The 24' length can be loaded on all three bands (20, 30 and 40 meters), and the wire itself weighs under 1 ounce. For 80, they recommend: For 80 m, a resonant antenna is recommended. It should be possible to use an 80 m antenna on multiple bands. A loading coil is another possibility to get a shorter antenna running on 80 m. What recommendations are there for a travel/portable antenna. I plan to use it from hotel rooms around the country as I travel for work. So far, I purchased two 100-foot rolls of 24 gage. Thank you very much. arnie __ 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] LDG
Elecraft **does** build a $699 radio. Actually, $690. Check it out, it's pretty good. Peter W0LLN On Fri, Jun 18, 2010 at 1:20 PM, Jim Miller KG0KP jimmil...@stl-online.net wrote: ... (NO, I don't think Elecraft should build a 699 radio). __ 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] LDG [END of thread]
Time to end this thread. Looks like its had enough ;-) 73, Eric List Moderator --- On 6/18/2010 12:03 PM, Peter Wollan wrote: Elecraft **does** build a $699 radio. Actually, $690. Check it out, it's pretty good. Peter W0LLN On Fri, Jun 18, 2010 at 1:20 PM, Jim Miller KG0KP jimmil...@stl-online.net wrote: ... (NO, I don't think Elecraft should build a 699 radio) __ 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] Antenna for a KX1
I've been in hotels where I've taken my wire and put it over the curtain rod and then around the room with the counterpoise laying on the floor. When the window opens I usually just drop the radiator out the window and let it hang. If I want to operate from the ground level some times I'll go up the emergency stairs to the roof and drop a line down to the floor level and set up outside the hotel... These have all yielded me good results. Have fun! PS. In ALL cases I used the reccomended lengths and size of wire that Elecraft suggests for the KX1.. I use a stereo Bannan plug to BNC adapter to connect the wires to the rig Works Great, and is easy to add and remove wires as I see fit. Packs up easy too! Date: Fri, 18 Jun 2010 14:23:18 -0400 From: w3...@embarqmail.com To: w7...@cox.net CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] Antenna for a KX1 Arnie, Try the recommended lengths first. While they are not optimum for any one band, they certainly are known to work. Just throw the *insulated* wire over whatever support is available and connect it to the BNC center conductor - the 16 foot counterpoise wire connects to the BNC shell. A BNC to 5 way binding post adapter is handy for making the connections. For those occasions when weight and extreme portability are not critical, you might want to add a collapsible pole to your kit to be used as a support for the radiator portion when other supports are scarce or difficult to hang an antenna from. Use a bungy cord or two to secure the pole to just about any upright object. Once you have something that you know will work, then you can expand your horizons and try other antenna configurations if you desire. There are no best antennas for any particular situation, use what works best for you and whatever constraints that you are facing. 73, Don W3FPR arnie lewin wrote: Having acquired a beautiful KX1 from a very kind and patient member of this list, I am ready to test it out and get it ready for travel. Elecraft's FAQ page states: What we recommend in the KXAT1 manual for 40-20 m is about 24' of #26 insulated copper-clad steel antenna wire (available from The Wireman), used as a vertical or sorta-vertical radiator. You'll also need at least one ground radial, 16' or longer (more on that below). The wire can be tossed into a tree, or, if a tree is not available, supported by a portable mast or other support. The 24' length can be loaded on all three bands (20, 30 and 40 meters), and the wire itself weighs under 1 ounce. For 80, they recommend: For 80 m, a resonant antenna is recommended. It should be possible to use an 80 m antenna on multiple bands. A loading coil is another possibility to get a shorter antenna running on 80 m. What recommendations are there for a travel/portable antenna. I plan to use it from hotel rooms around the country as I travel for work. So far, I purchased two 100-foot rolls of 24 gage. Thank you very much. arnie __ 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 _ Hotmail is redefining busy with tools for the New Busy. Get more from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2 __ 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] May I build or service your Elecraft?
Hello, Have you always wanted an Elecraft? A KX1, K1, K2, K3, whatever? I build them all! See what my clients have said about my construction and service work at http://www.eham.net/reviews/detail/6768 I also build and service all the QRP radios from Small Wonder Labs. See feedback http://www.eham.net/reviews/detail/8841 Visit my website at http://WilcoxEngineering.com for more details, including photos of some of my projects. Cheers, Alan Alan D. Wilcox, W3DVX (K2-5373, K3-40) 570-321-1516 Williamsport, PA 17701 __ 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] tx gain calibration
Must I do this for each antenna port? __ 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] tx gain calibration
No you're just able to have the dummy load on either port when you do so. ~Brett (N7MG) On Fri, 2010-06-18 at 20:35 -0400, Gary Lee wrote: Must I do this for each antenna port? __ 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] tx gain calibration
No. Just one time on one of the antenna ports into a dummy load. 73, Eric On 6/18/2010 5:35 PM, Gary Lee wrote: Must I do this for each antenna port? __ 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 ref osc calibration question
I'm performing a calibration on my K3's TXCO (5 ppm version). K3 is new/recent build, serial 44xx K3 owner's manual, Rev. L, page 49. Method 2 (zero-beating) I'm using an Elecraft XG2 signal generator at roughly 14.060 MHz Procedure says to enter CW mode and tune to the specified frequency (in this case, I don't know it, as every XG2 is probably a little different) Since I don't know the exact frequency, can I spot it with the Spot function, and then proceed to the REF CAL adjustment? Or is there a catch 22 here, as the spot function may not be accurate until the TXCO is calibrated? --Andrew NV1B __ 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 ref osc calibration question
I ended up using WWV at 20.0 MHz. Works great. Problem was that the freq must really be known -- i.e. the XG2 won't cut it, unless I know its exact frequency... Thanks all On Fri, Jun 18, 2010 at 8:56 PM, Andrew Moore andrew.n...@gmail.com wrote: I'm performing a calibration on my K3's TXCO (5 ppm version). K3 is new/recent build, serial 44xx K3 owner's manual, Rev. L, page 49. Method 2 (zero-beating) I'm using an Elecraft XG2 signal generator at roughly 14.060 MHz Procedure says to enter CW mode and tune to the specified frequency (in this case, I don't know it, as every XG2 is probably a little different) Since I don't know the exact frequency, can I spot it with the Spot function, and then proceed to the REF CAL adjustment? Or is there a catch 22 here, as the spot function may not be accurate until the TXCO is calibrated? --Andrew NV1B __ 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 ref osc calibration question
Perfect! The higher the frequency you use the better! ~Brett (N7MG) On Fri, 2010-06-18 at 21:12 -0400, Andrew Moore wrote: I ended up using WWV at 20.0 MHz. Works great. Problem was that the freq must really be known -- i.e. the XG2 won't cut it, unless I know its exact frequency... Thanks all On Fri, Jun 18, 2010 at 8:56 PM, Andrew Moore andrew.n...@gmail.com wrote: I'm performing a calibration on my K3's TXCO (5 ppm version). K3 is new/recent build, serial 44xx K3 owner's manual, Rev. L, page 49. Method 2 (zero-beating) I'm using an Elecraft XG2 signal generator at roughly 14.060 MHz Procedure says to enter CW mode and tune to the specified frequency (in this case, I don't know it, as every XG2 is probably a little different) Since I don't know the exact frequency, can I spot it with the Spot function, and then proceed to the REF CAL adjustment? Or is there a catch 22 here, as the spot function may not be accurate until the TXCO is calibrated? --Andrew NV1B __ 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 ref osc calibration question
Andrew, The XG2 is controlled for its output *level*, but the frequency is dependent on the specific crystal. Much better to use WWV as the reference for calibration than the XG2 (unless you have previously measured the XG2 frequency with a precise instrument). 73, Don W3FPR Andrew Moore wrote: I ended up using WWV at 20.0 MHz. Works great. Problem was that the freq must really be known -- i.e. the XG2 won't cut it, unless I know its exact frequency... Thanks all __ 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 K3 shematic
On Fri, 18 Jun 2010 05:33:40 -0700 (PDT), Jan Holmer SM6TUW sm6...@gmail.com wrote: Just found the june 2020 K3 shematic. Time travel is great! I thought I was the only one who could do that ;o) BT 73 ES GUD LUK DE N5GE, QCWA LIFE MEMBER 35102 AR SK n...@n5ge.com http://www.n5ge.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] K3 CW tx not putting out much power
Finished K3 build. Using 100 W amp option CW mode, set power to 50 W Hitting the Tune button seems to draw right amount of current, but when I exit Tune and start transmitting, only a fraction of that current is drawn (no wattmeter here so I have to watch the current meter on the power supply). Suggestions? __ 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 CW tx not putting out much power
Disregard. I just RTFM and it told me to enable VOX. Working. On Sat, Jun 19, 2010 at 1:08 AM, Andrew Moore andrew.n...@gmail.com wrote: Finished K3 build. Using 100 W amp option CW mode, set power to 50 W Hitting the Tune button seems to draw right amount of current, but when I exit Tune and start transmitting, only a fraction of that current is drawn (no wattmeter here so I have to watch the current meter on the power supply). Suggestions? __ 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
