Re: [Elecraft] [K3]_[KRC2]_Is_there_a_KRC3_in_the_w orks?
Its a -very- active current project. :-) We have finished SVGA hardware on completed pc boards. The firmware is being finished and tested in the lab as I type this. The SVGA adapter for the P3 plugs into the existing rear IO board inside the P3. It can be added to any existing P3 very easily. We are currently displaying P3 data on the external monitor at up to 1920 x 1080p. It looks very cool. Stay tuned! 73, Eric www.elecraft.com _..._ On Oct 14, 2011, at 10:44 PM, Bob k...@att.net wrote: Leave it at or?? Please expand on the or. Is the P3 a finished project or we ever see the ability to attach a larger screen as was mentioned here on the reflector. That ability was a consideration in the original purchase. 73, Bob K2TK On 10/14/2011 3:01 PM, Wayne Burdick wrote: We're trying to line up a resource to update it. Everyone seems to be working on the K3, or the KX3, or the KAT500, or... well, let's just leave it at or. 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 __ 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] Trade request
Hi Guys, I know no one wishes to trade their last K2 but I am hoping that someone has an extra that would consider it. I have a very nice FT-100D with 500Hz and 250Hz CW filters, TCXO and DSP w/ unused ATAS-120A antenna. I have some additional items to add depending on the K2 configuration and serial number. Any interest? 73 Bob w7wo Lacey, Wa b...@kalkwarf.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX1 ?'s
KD6GW wrote: Today, close to civilization, practically everything radiates something. You may be hearing Ethernet trash from your or your neighbor's. Local oscillators in wi-fi routers, monitors, you name it, and a lot of it seems to concentrate in the 10 - 20 MHz range. Short the BNC connecter securely with as little wire as you can and see if you still hear the signals. The birdies are coming from the KX1. I live seven miles from town in the middle of 60 acres of pines and hardwoods. The nearest house is at least a 1/4 mile away. I turned off my router and satellite internet but that did not help. Also, how can this post be moved to the proper sub forum? 73, George NC5G -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-s-tp6896330p6900155.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
Re: [Elecraft] 160m loop experiment a big failure
Don, How did you plan to use the 160M loop? If you want to work the locals (within 500 miles) a low (less than 100 ft high) 160M loop is a great sky warmer. If you are more interested in working DX on the Topband then give an Inverted-L a try. I've had very good luck with two that I've built. The one that favors Europe, Africa, the Caribbean and So. America has only 30 feet of the 135 feet of wire vertical. The rest of it is horizontal, ending up around 50 feet high in a tree. This Inverted-L is fed with 50 Ohm coax with a 500pf capacitor in series at the base of the antenna. Presently there are 16 short (1/8 wavelength, 65 ft) radials. The second Inverted-L has 60 ft. of vertical with the rest horizontal, sloping down to 30 feet. This antenna favors the west and northwest. It has 8 quarter wave, 130 feet, radials. Running the K3 barefoot with these Inverted-L antennas, since I've moved to my new VA QTH, I've increased my Topband DXCC total from 201 to 222 countries confirmed running 100 Watts or less. Some of the best DX to the east includes 4X, S0, 5N, D4 and UA6. To the south CE, CX, VP8/F and to the west FO, FO/A,T30,T2,KH6,ZL a number of KL7's to the NW. So, as you can see the Inverted-L, even without a lot of the wire being vertical, can perform well as a DX antenna. It certainly will outperform a 160M loop. So, if you are interested in making longer haul QSOs on 160M, I would ditch the loop and go with an Inverted-L. If you have a tower, I would shunt feed it, but that's another story. 73, Rich - K1HTV = = = -Original Message- From: gold...@charter.net [mailto:gold...@charter.net] Sent: Saturday, October 15, 2011 12:15 PM To: Elecraft Subject: [Elecraft] 160m loop experiment a big failure I set up a 160m loop in the yard to try one out from all the great reading I did regarding the antenna. For me I can get it to tune with no problems except the RF in the shack is terrible. . . . . So I thought I would share my current failure while I ponder my next move or give up on the loop. Ok I wont give up, YET! Cheers ~73 Don KD8NNU __ 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 H Mode Mixer
Hi Jack, again thanks a lot for the circuit diagram and description of converter. Thanks for the link to the F6CTE software. I am not using PSK ... I am a chatter...hi I believe if something is old it does not mean is not good ... we can always modify it...hi 73 Gian I7SWX -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-H-Mode-Mixer-tp6889343p6900499.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
Re: [Elecraft] KX1 ?'s
George, I am not certain what you mean by proper sub forum - there is only one Elecraft reflector that I know of, even if it is presented both in pure email as well as Nabble posts. It is true that the KX1 has several birdies, especially on 20 meters. Double check the 14 MHz Low Pass Filter located after the DDS for proper components (the DDS has a harmonic-rich output). I suspect some are coming from the DDS harmonics and mixing with harmonics of the BFO. There is not a lot of room for complete isolation inside that small enclosure. For the most part, I simply ignore those birdies, but YMMV. 73, Don W3FPR On 10/17/2011 7:38 AM, George Winship, NC5G wrote: KD6GW wrote: Today, close to civilization, practically everything radiates something. You may be hearing Ethernet trash from your or your neighbor's. Local oscillators in wi-fi routers, monitors, you name it, and a lot of it seems to concentrate in the 10 - 20 MHz range. Short the BNC connecter securely with as little wire as you can and see if you still hear the signals. The birdies are coming from the KX1. I live seven miles from town in the middle of 60 acres of pines and hardwoods. The nearest house is at least a 1/4 mile away. I turned off my router and satellite internet but that did not help. Also, how can this post be moved to the proper sub forum? 73, George NC5G -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-s-tp6896330p6900155.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] marc.info
Hi, What's up with marc.info lately? It has had several outages and now has had no postings added since before the weekend. AB2TC - Knut -- View this message in context: http://elecraft.365791.n2.nabble.com/marc-info-tp6900565p6900565.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] FOR SALE
I have an EL-001S RigExpert cable for sale that will connect the RigExpert Standard, Plus and TI-5 to an Elecraft K3. New, these cables sell for $48.00 plus shipping. I will sell for $35.00 shipped to your USA QTH. Contact KN8N via email - lboeke...@sbcglobal.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] 160m loop experiment a big failure
On 10/17/2011 03:02 PM, Rich - K1HTV wrote: Don, How did you plan to use the 160M loop? If you want to work the locals (within 500 miles) a low (less than 100 ft high) 160M loop is a great sky warmer. If you are more interested in working DX on the Topband then give an Inverted-L a try. Up to a point, this is true. Given that a loop is possible, you can also make an inverted L, and it would work better for DX. A double L may also be a good choice. See http://www.surriel.com/radio/160-meter-double-l-antenna. But sky warmers can do very well, too. I don't have trees taller than 4m (13'). My lot is abt 600 sq m (0.15 acres). This is actually considered large in Europe. There is almost, but not quite, room for a dipole for 80m. To get on the lower bands, I started out with an inv vee, slightly shortened, 15m (45') at the apex and 4-5m (15') up at the ends. I built it for a local sweepstakes like contest, but worked 80m DXCC with it. (Easier from Europe than from the USA.) Last winter, I wanted to play with 160m, and ran low wire to the ends of the inv vee. Seen from above, the antenna looks rather like a 'Z'. Result after one season: 61 countries, including Canada, USA and Tajikistan. It helps that outside my local area of abt 200k inhabitants, population is pretty sparse for 3-400 km or so. There is also no AM broadcasting. This makes QRM arriving from high angles less of a problem than it would be in much of the USA. I'm not arguing that you should build a skywarmer where a low angle antenna is feasible. But it would be a shame not to try *something*, if you can't put up an ideal antenna. 73 Jon LA4RT I've had very good luck with two that I've built. The one that favors Europe, Africa, the Caribbean and So. America has only 30 feet of the 135 feet of wire vertical. The rest of it is horizontal, ending up around 50 feet high in a tree. This Inverted-L is fed with 50 Ohm coax with a 500pf capacitor in series at the base of the antenna. Presently there are 16 short (1/8 wavelength, 65 ft) radials. The second Inverted-L has 60 ft. of vertical with the rest horizontal, sloping down to 30 feet. This antenna favors the west and northwest. It has 8 quarter wave, 130 feet, radials. Running the K3 barefoot with these Inverted-L antennas, since I've moved to my new VA QTH, I've increased my Topband DXCC total from 201 to 222 countries confirmed running 100 Watts or less. Some of the best DX to the east includes 4X, S0, 5N, D4 and UA6. To the south CE, CX, VP8/F and to the west FO, FO/A,T30,T2,KH6,ZL a number of KL7's to the NW. So, as you can see the Inverted-L, even without a lot of the wire being vertical, can perform well as a DX antenna. It certainly will outperform a 160M loop. So, if you are interested in making longer haul QSOs on 160M, I would ditch the loop and go with an Inverted-L. If you have a tower, I would shunt feed it, but that's another story. 73, Rich - K1HTV = = = -Original Message- From: gold...@charter.net [mailto:gold...@charter.net] Sent: Saturday, October 15, 2011 12:15 PM To: Elecraft Subject: [Elecraft] 160m loop experiment a big failure I set up a 160m loop in the yard to try one out from all the great reading I did regarding the antenna. For me I can get it to tune with no problems except the RF in the shack is terrible. . . . . So I thought I would share my current failure while I ponder my next move or give up on the loop. Ok I wont give up, YET! Cheers ~73 Don KD8NNU __ 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] P3 Video Output (Was [K3]_[KRC2]_Is_there_a_KRC3_in_the_w orks?)
Eric, What other resolutions will the P3 support? Thanks, 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Sun, 16 Oct 2011 23:01:54 -0700, Eric Swartz WA6HHQ - Elecraft e...@elecraft.com wrote: Its a -very- active current project. :-) We have finished SVGA hardware on completed pc boards. The firmware is being finished and tested in the lab as I type this. The SVGA adapter for the P3 plugs into the existing rear IO board inside the P3. It can be added to any existing P3 very easily. We are currently displaying P3 data on the external monitor at up to 1920 x 1080p. It looks very cool. Stay tuned! 73, Eric www.elecraft.com _..._ On Oct 14, 2011, at 10:44 PM, Bob k...@att.net wrote: Leave it at or?? Please expand on the or. Is the P3 a finished project or we ever see the ability to attach a larger screen as was mentioned here on the reflector. That ability was a consideration in the original purchase. 73, Bob K2TK On 10/14/2011 3:01 PM, Wayne Burdick wrote: We're trying to line up a resource to update it. Everyone seems to be working on the K3, or the KX3, or the KAT500, or... well, let's just leave it at or. 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 __ 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] KX1 ?'s
On 10/17/2011 4:38 AM, George Winship, NC5G wrote: The birdies are coming from the KX1. I live seven miles from town in the middle of 60 acres of pines and hardwoods. The nearest house is at least a 1/4 mile away. I turned off my router and satellite internet but that did not help. OK ... I have one on my KX1 when I'm well away from civilization, not loud and it tunes at double rate. I guess I'm just lucky? Also, how can this post be moved to the proper sub forum? I don't think there are any sub-forums on the Elecraft list, except maybe the Nabble archive? 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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] Toroid Balun Cores
On 10/16/2011 4:29 PM, Vic K2VCO wrote: two different materials used in toroids (etc.): Ferrite and powdered iron. AND each generic type -- ferrites and powdered iron -- have many variations that are VERY different from each other. The ferrite types are different as a result of their chemical MIX, and every MIX is designed for a different use -- that is, suppression over one range of frequencies and/or inductance in a different range of frequencies. See the RFI tutorial on my website about these matters. 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] Toroid Balun Cores
Someone mentioned the baluns on older yagis were air-core. I have an older Hygain TH3mk4 with original balun (big black box connected to the hairpin stub and driven element. The antenna is probably 20-30 years old, so I wonder if anyone can tell me if it is likely air-core or ferrite? Any advantage in replacing it? I found that I had to use a tuner after installing it at 50-feet even with element lengths adjusted to min SWR per manual. Now I wonder if this may be due to an aged balun? The used antenna only cost me $75 so not a big investment. But it does seem to work DX OK. I worked T32 on 10m on Saturday with only 8w SSB from my K3/10. But eventually I will be running 300w so this may matter more. Note that the tuner is required on all bands 20-15-10m. 10m was the hardest and would not tune very well in any position of the driven element. Tuning was done with antenna pointed straight up when at ground level with reflector essentially at the ground. I expected some shift in resonance once the tower was raised (all antennas installed before raising with a crane). I suppose this may also point at bad traps (but for $75 it works). 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Trade request
I hope I am following protocol. The previous request for a K2 trade for my FT-100D and ATAS-120A should have had a K2 with SSB, ATU, and AF or DSP. Sorry about not being more specific. Bob w7wo __ 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] Toroid Balun Cores
I've never seen an HF Yagi with an air core balun at the feed point. Such baluns for HF were typically a foot or more square! (The only ones I ever messed with were mounted in the shack to connect a single-ended rig output to a balanced feed line.) By the 1980s ferrite baluns were very commonly used almost everywhere, so I'd put money on your having a ferrite balun on that yagi. If the balun was abused, physically, with too much RF heating or by moisture getting into the housing, it may be damaged. The same is true for traps. 73, Ron AC7AC -Original Message- Someone mentioned the baluns on older yagis were air-core. I have an older Hygain TH3mk4 with original balun (big black box connected to the hairpin stub and driven element. The antenna is probably 20-30 years old, so I wonder if anyone can tell me if it is likely air-core or ferrite? Any advantage in replacing it? I found that I had to use a tuner after installing it at 50-feet even with element lengths adjusted to min SWR per manual. Now I wonder if this may be due to an aged balun? The used antenna only cost me $75 so not a big investment. But it does seem to work DX OK. I worked T32 on 10m on Saturday with only 8w SSB from my K3/10. But eventually I will be running 300w so this may matter more. Note that the tuner is required on all bands 20-15-10m. 10m was the hardest and would not tune very well in any position of the driven element. Tuning was done with antenna pointed straight up when at ground level with reflector essentially at the ground. I expected some shift in resonance once the tower was raised (all antennas installed before raising with a crane). I suppose this may also point at bad traps (but for $75 it works). 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ 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] Toroid Balun Cores
It is a pity that someone back in prehistoric times started using the word balun for two entirely different devices. I use an air core balun (a so-called choke balun) which is about a foot long and about 4 in diameter, wound as a single-layer solenoid on PVC pipe, on my HF beam. This is in place of the scramble-wound choke often used at an antenna feed point. I also have various matching transformers on my 5 beam antennas, none of which is a toroidal transformer. It is possible to make an unbalanced line-to-balanced feed point transition without a toroidal transformer, of course, and when things are managed this way, there is never a question of a toroid freezing and cracking or alternatively roasting from too much RF and cracking. As I see it, one of the truly superior advantages of toroids is as cores for interstage transformers (or for filters), as in many modern transceivers. The devices are beautiful because they are physically small and one can lay them down or against almost any substrate, since their ultrahigh permeability contains fringing fields completely (any that are left over from imperfections in the flux closure of a perfect toroid). John Ragle -- W1ZI = On 10/17/2011 3:14 PM, Ron D'Eau Claire wrote: I've never seen an HF Yagi with an air core balun at the feed point. Such baluns for HF were typically a foot or more square! (The only ones I ever messed with were mounted in the shack to connect a single-ended rig output to a balanced feed line.) By the 1980s ferrite baluns were very commonly used almost everywhere, so I'd put money on your having a ferrite balun on that yagi. If the balun was abused, physically, with too much RF heating or by moisture getting into the housing, it may be damaged. The same is true for traps. 73, Ron AC7AC -Original Message- Someone mentioned the baluns on older yagis were air-core. I have an older Hygain TH3mk4 with original balun (big black box connected to the hairpin stub and driven element. The antenna is probably 20-30 years old, so I wonder if anyone can tell me if it is likely air-core or ferrite? Any advantage in replacing it? I found that I had to use a tuner after installing it at 50-feet even with element lengths adjusted to min SWR per manual. Now I wonder if this may be due to an aged balun? The used antenna only cost me $75 so not a big investment. But it does seem to work DX OK. I worked T32 on 10m on Saturday with only 8w SSB from my K3/10. But eventually I will be running 300w so this may matter more. Note that the tuner is required on all bands 20-15-10m. 10m was the hardest and would not tune very well in any position of the driven element. Tuning was done with antenna pointed straight up when at ground level with reflector essentially at the ground. I expected some shift in resonance once the tower was raised (all antennas installed before raising with a crane). I suppose this may also point at bad traps (but for $75 it works). 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ 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 -- Sent from my lovely old Dell XPS 420 __ 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] Toroid Balun Cores [End of thread]
Folks - Let's end this thread as it has more than passed our list posting number limit. In the future, please self moderate and resist the urge to continue threads that already have 5-10 postings. Also, please trim all copied text to a -very- short summary. Copying everyhting is unnecessary and wasteful of both bandwidth and storage. Also delete all of the automated list footers in your reply. 73, Eric List Moderator --- www.elecraft.com On 10/17/2011 12:14 PM, Ron D'Eau Claire wrote: I've never seen an HF Yagi with an air core balun at the feed point. __ 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 #2999 does not seem to get 5 watts out on 20
I adjusted the K1 again ( transmit adj) the receiver sounds louder on 20. I still cant seem to get 5 watts out. When Im around 14.010 its is 4 bars ( ant tuner says the swr is 1.1) and as I move up (14.040) it will sometimes drop to 3 bars( tuner once again says 1.1) . On 40 I do get 5 bars. I am running it through a MFJ SWR/Watt meter and the power looks like it is just under 5 watts.. I am not using the plastic coil tuner. I use a small screwdriver with tape. Not sure that could be a issue? I did retouch all the solder joints that related to 20 meters on the filter board. Last night I received a 599 from a 500 mile QSO into Canada so maybe I should not worry? I have the 2 band module (40/20) Is it typical for the power to have a drop off from 40 to 20? Thanks Don -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-2999-does-not-seem-to-get-5-watts-out-on-20-tp6902429p6902429.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] Problems abound
Hello everyone, I’m a newer K3 owner and I’m loving the heck out of the device, but recently I noticed a strange problem. It started behaving as though my MIC wasn’t working correctly. [All tests from this point out will be into a DUMMY LOAD that is rated up to 300W.] I would notice that if I used 100W and tried to send, the power draw was never more than 4 amps, and the RF display wouldn’t go above 5 or 10W. After some troubleshooting, I ‘recalibrated’ the TX gain, and this fixed it... until I leave and come back later. Then I’m required to recalibrate the TX gain. I know this isn’t the expected behavior, so I suspect something is amiss. Another problem that has cropped up at the same time (and is likely related) is my ATU inability to tune correctly. I should be able to “tune” the dummy load 1:1 on all bands (except maybe 10m and 6m), but when I try to tune, I hear the relays click, but after a short wait the K3 beeps and displays “- -“. I’m guessing this is because the TX gain calibration is wacky and thus the ATU ability to read the SWR might be out of whack. All this said, I’m really stumped and was hoping for suggestions and ideas? I have tried reloading settings from when my device was first brought online, but that didn’t have any effect. Thanks, Shane - KF7EFG __ 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] K1 #2999 does not seem to get 5 watts out on 20
Don, Make certain the turns on the 20 meter low pass filter toroids are spread completely around the core. If the turns are bunched up, the cutoff frequency of the 20 meter LPF can be down in the 20 meter band instead of above 14,350 MHz, and a substantial amount of power will be shunted to ground. Judge the power output only into a dummy load - initially with the tuner removed (don't forget the jumper). After you obtain adequate power output without the tuner, then you can add the tuner, balance it and calibrate its wattmeter. You can believe the K1 power reading into a 50 ohm dummy load when the KXAT1 is removed - so do not put your external wattmeter between the K1 and dummy load. When you get ready for the KAT1 power calibration (and after you have balanced the KXAT1 wattmeter), then you will add the external wattmeter and adjust the FWD pot on the KAT1 to make the power readings agree. What I am saying is that many external wattmeters can introduce reactance to the transceiver output, so eliminate them until they are needed - use a good 50 ohm pure resistive dummy load for the best results and connect it to the K1 with a short length of coax. Be certain you set the jumper near the BNC jack to the proper Non-KAT1 or KAT1 position when changing from no tuner to KXAT1 installed. If you have gone through all those procedures and still have problems, back the configuration down to the K1 without the KAT1, and if you do not have sufficient output, turn the manual to the Transmit Signal Tracing section in the manual and follow that procedure. Once you have identified the stage where the RF Voltage is substantially less than the expected value, you have found the output of the failing stage. Tell us the relevant details and we should be able to assist with detailed measurements of that failing stage. 73, Don W3FPR On 10/17/2011 5:40 PM, Don Baucom wrote: I adjusted the K1 again ( transmit adj) the receiver sounds louder on 20. I still cant seem to get 5 watts out. When Im around 14.010 its is 4 bars ( ant tuner says the swr is 1.1) and as I move up (14.040) it will sometimes drop to 3 bars( tuner once again says 1.1) . On 40 I do get 5 bars. I am running it through a MFJ SWR/Watt meter and the power looks like it is just under 5 watts.. I am not using the plastic coil tuner. I use a small screwdriver with tape. Not sure that could be a issue? I did retouch all the solder joints that related to 20 meters on the filter board. Last night I received a 599 from a 500 mile QSO into Canada so maybe I should not worry? I have the 2 band module (40/20) Is it typical for the power to have a drop off from 40 to 20? Thanks Don -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-2999-does-not-seem-to-get-5-watts-out-on-20-tp6902429p6902429.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] marc.info
Marc is having hardware trouble. You might donate to them if you are a regular user. The archive at Nabble is working fine, as are the others listed on the Elecraft lists page. http://marc.info/?q=news Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/marc-info-tp6900565p6902653.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
Re: [Elecraft] [K3] Problems abound
Shane, I believe the - - display means that the KAT3 is not being properly recognized as being installed. That fact alone may complicate the results of your other observations. You may not be able to TUNE the dummy load to 1:1 SWR - the tuning mechanism may quit tuning if the SWR is below 1.3 or 1.2 (although it usually will tune to 1.0). If you want TO ASSURE 1:1 results, you will have to bypass the KAT3 rather than TUNing intp the dummy load. If your TX Gain calibration data is not being remembered, that is a different problem, and should be addressed to k3supp...@elecraft.com. It does seem that is your problem source. 73, Don W3FPR On 10/17/2011 5:56 PM, Shane DeSeranno wrote: Hello everyone, I’m a newer K3 owner and I’m loving the heck out of the device, but recently I noticed a strange problem. It started behaving as though my MIC wasn’t working correctly. [All tests from this point out will be into a DUMMY LOAD that is rated up to 300W.] I would notice that if I used 100W and tried to send, the power draw was never more than 4 amps, and the RF display wouldn’t go above 5 or 10W. After some troubleshooting, I ‘recalibrated’ the TX gain, and this fixed it... until I leave and come back later. Then I’m required to recalibrate the TX gain. I know this isn’t the expected behavior, so I suspect something is amiss. Another problem that has cropped up at the same time (and is likely related) is my ATU inability to tune correctly. I should be able to “tune” the dummy load 1:1 on all bands (except maybe 10m and 6m), but when I try to tune, I hear the relays click, but after a short wait the K3 beeps and displays “- -“. I’m guessing this is because the TX gain calibration is wacky and thus the ATU ability to read the SWR might be out of whack. All this said, I’m really stumped and was hoping for suggestions and ideas? I have tried reloading settings from when my device was first brought online, but that didn’t have any effect. Thanks, Shane - KF7EFG __ 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] Problems abound
The '- -' display usually happens when there is not enough power to tune and generate a proper SWR. 73, Eric --- www.elecraft.com On 10/17/2011 4:23 PM, Don Wilhelm wrote: Shane, I believe the - - display means that the KAT3 is not being properly recognized as being installed. That fact alone may complicate the results of your other observations. You may not be able to TUNE the dummy load to 1:1 SWR - the tuning mechanism may quit tuning if the SWR is below 1.3 or 1.2 (although it usually will tune to 1.0). If you want TO ASSURE 1:1 results, you will have to bypass the KAT3 rather than TUNing intp the dummy load. If your TX Gain calibration data is not being remembered, that is a different problem, and should be addressed to k3supp...@elecraft.com. It does seem that is your problem source. 73, Don W3FPR On 10/17/2011 5:56 PM, Shane DeSeranno wrote: Hello everyone, I’m a newer K3 owner and I’m loving the heck out of the device, but recently I noticed a strange problem. It started behaving as though my MIC wasn’t working correctly. [All tests from this point out will be into a DUMMY LOAD that is rated up to 300W.] I would notice that if I used 100W and tried to send, the power draw was never more than 4 amps, and the RF display wouldn’t go above 5 or 10W. After some troubleshooting, I ‘recalibrated’ the TX gain, and this fixed it... until I leave and come back later. Then I’m required to recalibrate the TX gain. I know this isn’t the expected behavior, so I suspect something is amiss. Another problem that has cropped up at the same time (and is likely related) is my ATU inability to tune correctly. I should be able to “tune” the dummy load 1:1 on all bands (except maybe 10m and 6m), but when I try to tune, I hear the relays click, but after a short wait the K3 beeps and displays “- -“. I’m guessing this is because the TX gain calibration is wacky and thus the ATU ability to read the SWR might be out of whack. All this said, I’m really stumped and was hoping for suggestions and ideas? I have tried reloading settings from when my device was first brought online, but that didn’t have any effect. __ 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] KX1 ?'s
On October 17, 2011 at 8:17 AM Don Wilhelm wrote; I am not certain what you mean by proper sub forum - there is only one Elecraft reflector that I know of, even if it is presented both in pure email as well as Nabble posts. I choose to view the reflector posts from the Nabble archive. If viewing from the topics page the posts are usually under the heading that corresponds to the subject. These posts are under the K1 heading instead of the KX1 heading. Certainly not a big deal. It is true that the KX1 has several birdies, especially on 20 meters. Double check the 14 MHz Low Pass Filter located after the DDS for proper components (the DDS has a harmonic-rich output). I suspect some are coming from the DDS harmonics and mixing with harmonics of the BFO. I will double check the filter. These birdies vary in strength and pitch, are narrow in bandwidth and are numerous. Thanks for yours and everyone's responses. 73, George, NC5G -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-s-tp6896330p6902686.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] T32C Elecraft Mojo
Well, it's an almost-clean CW sweep as I have no antenna for 160. The K2/100 made it easy though on 10 through 80. I am especially proud that 13 year old Samantha and 10 year old Charles both worked T32C on 10m CW. Tnx Elecraft! Vy 7 de Bert WA2SI __ 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: really cool home-brew electronic project
This is not ham-related, but it illustrates that home design and building of incredible electronic gadgets is still alive and well. It does feature DSP, microcontroller programming, and audio-processing stuff that certainly can be tied to ham interests. I believe that reflector participant Ian GM3SEK is an audio engineer, and perhaps there are others on the list as well who are devotees of this kind of stuff. In any event, for anybody who likes electronics, the entertainment value of this is outstanding. The guy who did the project is a colleague of one of my sons at Penn State, who did this in his spare time as a contest entry. Here is the 1.5 Minute video that demos the active pickguard gadget:** http://www.youtube.com/watch?v=XhSo-udHuqM It seems mildly interesting, but you don't realize what you're looking at until you see the “deep dive”: http://www.youtube.com/watch?v=hI7nvLrYxc4 This second video is just brilliant! 73, Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 __ 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: Single Board Computers
Good evening, I vaguely recall someone in a thread making the suggestion of mounting something in a K3 to act as a PC or something similar; I've found the following items that would likely fit inside a K3/10: http://www.friendlyarm.net/products/mini2440 http://www.friendlyarm.net/products/mini6410 They measure 10cm by 10cm and 11cm by 11cm respectively (approximately 4 inches by 4 inches for those not used to the Metric System); one source that I know of for these boards offers an adapter to connect a VGA monitor to the board instead of the smaller LCD displays. Matthew Pitts N8OHU Sent from my Wireless Device __ 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: Single Board Computers
It might fit, but how will you make sure it doesn't add a bunch of rf noise? Mark AD5SS On Mon, Oct 17, 2011 at 8:30 PM, Matthew Pitts daywalker_blade_2...@yahoo.com wrote: Good evening, I vaguely recall someone in a thread making the suggestion of mounting something in a K3 to act as a PC or something similar; I've found the following items that would likely fit inside a K3/10: http://www.friendlyarm.net/products/mini2440 http://www.friendlyarm.net/products/mini6410 They measure 10cm by 10cm and 11cm by 11cm respectively (approximately 4 inches by 4 inches for those not used to the Metric System); one source that I know of for these boards offers an adapter to connect a VGA monitor to the board instead of the smaller LCD displays. Matthew Pitts N8OHU __ 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] Problems abound
The '- -' display usually happens when there is not enough power to tune and generate a proper SWR. And this display could be an indication that the K3 is in test mode. Be sure that the TX indicator is not flashing. Gus Hansen KB0YH __ 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] Problems abound
Thank you everyone for your replies. Gary from Elecraft was awesome to chime in... He had me check a number of things, but I think the core problem was the wattmeter needed to be calibrated. Disconnect any RS232 connection and PC software control. Redo the WMTR menu calibration. When in WMTR LP or WMTR HP, turning the VFO A knob counterclockwise for smaller numbers in the LCD will result in more RF output on an external wattmeter. Turning the VFO A knob the opposite way will decrease the actual RF output. The change when turning the knob menu is small, so you may need to turn the VFO A knob quite a bit to see much change in the actual RF output on the external wattmeter. This adjustment should be done with the K3 set to the 20m band. This calibration is done while you are in the WMTR menu and you then press TUNE. In short, my wattmeter marked stuff as 6W/60W for the 5W/50W test respectively. After adjusting this setting, my ATU tunes 1:1 on all 9 bands and is pushing 100% of the power as expected! Thank you everyone (Gary included!) =Shane - KF7EFG __ 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: really cool home-brew electronic project
Fan-tas-tic! Tnx Tony. It very dramatically illustrates how CAD and fab services have brought the ability to design and prototype new devices into the hands of any capable engineer. Ron AC7AC -Original Message- This is not ham-related, but it illustrates that home design and building of incredible electronic gadgets is still alive and well. It does feature DSP, microcontroller programming, and audio-processing stuff that certainly can be tied to ham interests. I believe that reflector participant Ian GM3SEK is an audio engineer, and perhaps there are others on the list as well who are devotees of this kind of stuff. In any event, for anybody who likes electronics, the entertainment value of this is outstanding. The guy who did the project is a colleague of one of my sons at Penn State, who did this in his spare time as a contest entry. Here is the 1.5 Minute video that demos the active pickguard gadget:** http://www.youtube.com/watch?v=XhSo-udHuqM It seems mildly interesting, but you don't realize what you're looking at until you see the deep dive: http://www.youtube.com/watch?v=hI7nvLrYxc4 This second video is just brilliant! 73, Tony KT0NY __ 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] T32C Elecraft Mojo
Bert, Do you have two ops age 13 and 10? That is like the sixties only ten is very young even for this era; congrats! The hobby needs young blood to replace the grey wolves. Your family is the one with the mojo. 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bert Craig Sent: 18 October 2011 01:11 To: elecraft@mailman.qth.net Subject: [Elecraft] T32C Elecraft Mojo Well, it's an almost-clean CW sweep as I have no antenna for 160. The K2/100 made it easy though on 10 through 80. I am especially proud that 13 year old Samantha and 10 year old Charles both worked T32C on 10m CW. Tnx Elecraft! Vy 7 de Bert WA2SI __ 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
