Re: [Elecraft] Turnbuckle Threads
Re: "Rohn tower hardware is hot dipped galvanized steel. I'd take their knowledge over any "tower guy" or any other person for that matter."Exactly! The science of materials and their proper manufacturing and use is far too complex to be summed up in an email or by statements like, "Material X is to brittle to be used for use in Y." Run away from anyone who says it. There are thousands of variations in steels that can be processed in thousands of variations, all of which affect the properties of the final product. Making these decisions correctly so the final product works correctly is what engineering is all about. In the words of Jim, K9YC in response to a similar issue: "Science is NOT decided by majority vote, nor is it decided by opinion."Mark, KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Turnbuckle Threads
Re: "Rohn tower hardware is hot dipped galvanized steel. I'd take their knowledge over any "tower guy" or any other person for that matter."Exactly! The science of materials and their proper manufacturing and use is far too complex to be summed up in an email or by statements like, "Material X is to brittle to be used for use in Y." Run away from anyone who says it. There are thousands of variations in steels that can be processed in thousands of variations, all of which affect the properties of the final product. Making these decisions correctly so the final product works correctly is what engineering is all about. In the words of Jim, K9YC in response to a similar issue: "Science is NOT decided by majority vote, nor is it decided by opinion."Mark, KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Low activity
Re: "September has been fairly quiet. Only around 160 posts..." I can fix that: What is the BEST antenna to use with my K??? Sorry, just couldn't resist ;-) Mark, KE6BB Original message From: Grant Youngman Date: 9/13/19 10:58 AM (GMT-08:00) To: Szabó István Cc: Elecraft Refl Subject: Re: [Elecraft] Low activity September has been fairly quiet. Only around 160 posts for the (nearly) first half of the month.Grant NQ5TKX3 (8342)/KXPA100> On Sep 13, 2019, at 1:46 PM, Szabó István wrote:> > During last week I got very few e-mails. Is it low activity or e-mails lost somewhere?> > 73, István ha4zd> > __> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> Message delivered to ghyoungman@gmail.com__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to rv6am...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and
Wow, Mark! That was very interesting. It may explain a lot of grossly inflated listings I've seen on eBay. Thank you.Mark, KE6BB Original message From: Mark Goldberg Date: 8/8/19 2:43 PM (GMT-08:00) To: David Gilbert Cc: Elecraft Mailing List Subject: Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and https://www.thebalancesmb.com/how-money-laundering-works-on-ebay-414538773,MarkW7MLGOn Thu, Aug 8, 2019, 2:09 PM David Gilbert wrote:>> It doesn't seem obvious at all to me that it's a knockoff. There are> only 2 units available and he's asking way too high a price for a knockoff.>> Dave AB7E>>> >> > On 8/8/2019 11:05 AM, Raymond Sills via Elecraft wrote:> >> I suspect that Wayne and Eric would take a big exception to the use> >> of the Elecraft name in their obvious knock-off product.> >>> >> 73 de Ray K2ULR KX3 #211> __> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net>> This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> Message delivered to marklgoldberg@gmail.com__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to rv6am...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Windows Update and the K3 USB Audio
Re: "I believe this problem has been solved in Windows 10. I've not had a problem with com ports changing with Windows 10 updates."This made me realize that I have not seen com port reassignment on update on my Win 10 computers. I have seen it in the past on my Win 7 computers. I also have my computers (Win 7 and 10) set so updates are only installed when I shut down, or if I ask for them before that. I never get interrupted for updates. The setting for that is in Windows Updates somewhere. I'm not near my computers right now to check.Mark,KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 volume
...and the Attenuator should be off.Mark,KE6BB Original message From: Dale Boresz Date: 7/31/19 4:37 PM (GMT-08:00) To: "Michael St.James" Cc: Elecraft Subject: Re: [Elecraft] KX3 volume Hello Michael,If you are listening on any band higher than 40m on the KX3, you shouldprobably have the preamp engaged. If I recall correctly, there arerecommendations in the User Manual regarding the preamp.73,Dale - WA8SRA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] CW problem
John,Re: "Anytime I change the mode from LSB or USB on any band to CW it starts to send a “dit” without stopping..."Take a look at the plug and jack. Be sure there is no damage to the jack, and that none of the plug was left behind in the jack. That happened to me once on a keyboard. A part of the plug's barrel broke off and just happened to short the tip to the shield. It was difficult to see, too. It's a long shot, and may not be what happened in your case, but the symptoms are correct.Mark,KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K4 - WiFi ability
Re: "...and work like a bridge between the two network...Like this one for example...I have been using a similar product (Netgear WINCE2001) for years on my home alarm system with no problems. They add WiFi capability to any device that has an Ethernet port. Be sure to follow the configuration instructions CAREFULLY. Search for "WiFi Ethernet bridge". Sadly, the price of this Netgear device has doubled (now $200 USD on Amazon) since I bought mine. Happily, cheaper devices are finally on the market.Mark,KE6BB ...and work like a bridge between the two network. In this way, maybe, you can connect the K4 to the wifi in a more "natural" way.Like this one for example:https://www.amazon.com/Vonets-VAR11N-300-Multi-Functional-Wireless-Portable/dp/B01199OGK0/ref=sr_1_fkmrnull_1_sspa?keywords=vonets+VAR11+N-300=1558431899=gateway=8-1-fkmrnull-spons=1Best regards, Graziano Roccon IW2NOY / W2NOY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 Utility problem: serial port is closed
Hank,I had a similar problem earlier this week following a Windows update. The COM port showed up in Device Manager, but the software package I was using (not the KX3 Utility) couldn't talk to it. Within a day or so, there was another Windows update, and then everything worked fine.Sometimes it seems like an update breaks something, and a follow on update fixes it. Not the first time I've seen that happen.Mark,KE6BB Original message From: HB Date: 4/12/19 6:34 PM (GMT-08:00) To: donw...@embarqmail.com, Elecraft list Subject: Re: [Elecraft] KX3 Utility problem: serial port is closed Don….I have verified the COM port in the Device Manager but the KX3 Utility does not show any COM ports in the port window.HankK4HYJ __ 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] Auto-spot, tuning aids, and the arcane history of CW pitch-matching
Re: "Does anyone know of a non-synthesized transceiver that didn't have the CW offset problem?" My TenTec 540 doesn't have that problem, but my much older TenTec PM-3A does. If my memory is correct, the Heathkit HW8 has the problem, but they fixed it in the HW9 with a small capacitor that switches in and out for RX/TX to shift the VFO. There are others. Mark KE6BB Sent via the Samsung Galaxy Tab E, an AT 4G LTE tablet Original message From: K9MA Date: 1/22/19 9:11 AM (GMT-08:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Auto-spot, tuning aids, and the arcane history of CW pitch-matching Back in my college days at W9YT, we had a Drake line, separate transmitter and receivers. When searching and pouncing in a contest, you had to spot the transmitter before every contact. Spotting required turning one of the rotary switches on the transmitter, a cumbersome process. Imagine doing that a couple thousand times in a weekend. At some point, we came up with the idea to hook a foot switch up to do the spotting, which made it much easier, and save a lot of wear and tear on the rotary switch, not to mention the operator's wrist. In those days, 40-50 years ago, transceivers just didn't work well on CW, so almost all CW operators used separate transmitters and receivers. Some, like the Drake line, could transceive, but had the same problem on CW. Transceivers didn't account for the BFO offset, and there was no RIT or XIT. If you called another station in transceive mode, you would be 700 Hz or so off frequency. Two transceivers pretty much couldn't work each other at all. Sometime while I was inactive in the late 70's and 80's, that problem was solved, and we no longer had to spot before every contact. I think that solution had to wait for frequency synthesis, as it otherwise would have required additional (expensive) crystals. Does anyone know of a non-synthesized transceiver that didn't have the CW offset problem? 73, Scott K9MA On 1/21/2019 23:09, Wayne Burdick wrote: > Elecraft's auto-spot and CWT features -- available on the K3/K3S/KX2/KX3 -- > are very useful tools for CW operators, especially those not experienced in > pitch-matching. Here's a bit of history on where these features came from and > how they work. -- Scott K9MA k...@sdellington.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rv6am...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT 500 and open wire
Re: "...what is the old dual air coil Heathkit B-1balun, a current or voltage type? If I remember correctly, they are 4:1 ratio." From the Heathkit manual: "The Heathkit Balun Coil Set, Model B-1 is a convenient transmitter accessory which has the capability of matching unbalanced coax lines, used on most modern transmitters, to balanced lines to either 75 ohms or 300 ohms impedance". The manual discusses its use with a dipole (~75 ohms) or a folded dipole (~300 ohms), and the analogy of using a line transmission line to get the desired impedance transformation. It is a very short but interesting read. The assembly manual shows how to wire it in 1:1 or 4:1 configurations. The schematic is identical to the Elecraft BL2 , except it uses air core coils instead of ferrite coils, and there is no switch to easily change between impedance ratios. I have never used my BL-2, so I cannot vouch for its effectiveness. I have often wondered if it might be compromised by the 2 bifilar wound "non-self-shielding" air core coils tightly packed into a metal enclosure resulting in enough capacitance or magnetic coupling to each other and the enclosure to reduce its effectiveness. I do, however, open it up occasionally and admire those beautiful inductors! Mark KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 parts falling off
Re: "It is as it just fell off!" It probably did. It is likely the surface mount joints were solder starved during original board processing. They can sometimes make surprisingly good electrical contact, at least in low current applications. Without a careful close examination with a good light and magnifying glass, it is all just guessing. Mark KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Avoiding costly lightning damage to your radios gear
Re: "Spark plugs fire at 12,000 to 25,000 Volts. Some require as much as 45,000 V." That is at the pressure inside the combustion chamber. At atmospheric pressure, they fire at much lower voltages; however, Walter's point is still valid. Turn on voltage is far more reliable with gas discharge tubes. Sparkplugs were probably more helpful with tube gear than with today's solid state gear. Mark KE6BB null __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
