Re: [Elecraft] K3 Receiver Protection
Hi Jeff, I have done that by comparing BAND DATA signals from both K3s using a 74HC688 8-Bit Comparator. When both BAND DATA signals are equal the P=Q output from the HC688 disables transmitting on both K3s (TXinh). I used the HC688 because I have decimal BAND DATA signals from my band filter. If you want 12V logic or only need 4 Bit (BCD BAND DATA) you can use CMOS 4063 (4-Bit Comparator) as well. This circuit saved K3 frontend several times :-) 73, Win DK9IP Am 01.06.2014 06:04, schrieb Jeff via Elecraft: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ 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 dk...@dk9ip.de __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
Hello Jeff, I use the Array Solutions AS-RXFEP inline w/ my K3 AUX (2nd rx input). At times the rx antenna is within 20 feet of the tx antenna. Without the protector in place the receiver COR relay was being triggered with as little as 20 watts at times, but with the RXFEP inserted, I could run 500W from the KPA500 without ever engaging the COR. According to the Array Solutions documentation, the input to the receiver is limited to .3v (0dBm), and the internal components of the device can handle 10 watts. I keep the device inline with the 2nd receiver input at all times, regardless of which rx antenna I'm using, and it has worked perfectly (and silently). 73, Dale WA8SRA My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@lightstream.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Repair Broken Power Pole
I think you'll need to get the back off to get to the APPs. You'll prob have to remove both housings. Use a small screwdriver to lift the contact lip over the spring and pull the housings from the rear. Push new housings on and reassemble the radio. I've never tried to remove two housings together, always had them separated. May be easier to un-solder and re-solder when finished. Sent from my iPhone ...nr4c. bill On May 31, 2014, at 6:48 PM, Jim Brown j...@audiosystemsgroup.com wrote: The plastic housing of the black power pole that is captive to the radio is broken, so I'm trying to take it apart to repair it. I started taking the right side panel off, removing all the perimeter screws, but there are two in the middle of the side panel, and six years after building these radios, I don't remember what I can remove without having a problem. This radio is my spare, minimal stuff in it. K3/100, no tuner, no 2nd RX. Suggestions? 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@widomaker.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
Take a look at the transceiver front-end protector in the “Articles” section of my website at www.ad5x.com. It operates full QSK (I tested it to 80WPM). Works great. Phil – AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [K3] Cutoff for the Next 700 Hz Filter Production Run
The cutoff for getting in on the next batch is 1200 UTC Tuesday June 3rd. Please visit http://www.unpcbs.com/frontdoor/ to submit your paid order by then, to ensure you don't miss out. Note: 1) This batch will arrive in early September. 2) We will only be requesting a handful of extra filters this time, i.e. beyond the number of paid orders we have in hand. As a result, this production run will probably sell out by July. 3) The reason we are requesting so few extra filters, is that we want to squeeze in another production run before the (winter solstice) holiday shopping season. 4) Our long-term plan has that subsequent run arriving the 2nd or 3rd week of November. Most likely it will be the last run of 2014. See also: o http://www.unpcbs.com/#k3_filter (overview) o http://www.unpcbs.com/filter/ (user comments, FAQs, app notes, etc.) o http://www.unpcbs.com/filter/slideshow/ (a novel visual comparison) o https://www.facebook.com/700.Hz.K3.filter (latest availability info) 73, Gary KI4GGX webmaster P.S. Thanks to Mike Harris (VP8NO) for pointing out a typo in my two previous 700 Hz filter posts; I had mistakenly listed the filter's center frequency as 8125 kHz rather than 8215 kHz. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
Larry, The Microham mk2r+ will do exactly what you want to accomplish. If both rigs are on the same frequency, neither will transmit. It is, however, an expensive solution. I was lucky and picked up a used one at a very good price. Rich - N5ZC On 5/31/2014 11:04 PM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ 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 rtho...@rthorne.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Receiver Protection
My approach to this was to use my band decoders to drive a 4P relay and use the relay contacts to drive filters, antenna switching, and an add circuit so if 2 of the relays were on the same band a piezo device that emits a tone as a warning of both radios being on the same band. My 2 radio band decoder is HB but the same idea could be implemented with a commercial units. Mike W9RE My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/KX3 and Bluetooth Headphones
Be aware that bluetooth audio is useless for CW work. There's too much latency to use it with a paddle. The sidetone you hear in the bluetooth headset is out of sync with the keying. --Mark -- Mark Newbold K7NEW Sequim, Washington, USA http://dogfeathers.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] SSB net announcement
The weekly Elecraft SSB net meets today at 1800Z on 14.3035 MHz. I will be NCS from western Oregon. See you there. Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
On 2014-06-01 1:02 AM, Don Wilhelm wrote: You should have no problems with paralleling 2 headphones on the audio output of the K3, with no need for any external mixer. I would not risk it. The K3 headphone amplifier is only rated for 105 mW at 16 Ohms. Both power dissipation (heat) and distortion rise significantly as the load impedance drops and the output power increase. I would recommend use of a headphone amp - even without individual balance capabilities - and individual adapter cables for each user. Connect tip on the amplifier to both tip and sleeve on the headphones for the operator using the main RX and connect ring to tip and ring for the operator using the sub RX. Since the outputs of the headphone amplifier/splitters are generally isolated, one could even make cables with a 1K or 5K pot to create their own balance/mix control. 73, ... Joe, W4TV On 2014-06-01 1:02 AM, Don Wilhelm wrote: Stew, You should have no problems with paralleling 2 headphones on the audio output of the K3, with no need for any external mixer. If there is a significant difference in the response (SPL) of the two headphones, that may present a volume problem, in which case, some secondary amplification may be required for one or the other set of headphones. Since the gaming headset has a volume control, that alone may be sufficient - try it and see what the result may be. 73, Don W3FPR On 5/31/2014 5:20 AM, Stewart Rolfe wrote: I want to have a second op listening to the sub rx on a separate pair of phones (for 6m trophy, so same band). I've strung together 2 stereo sockets with one fed from the right and the other from the left side of the front panel phone output and this seems to works well. With the channels linked I get Main in both ears in one headphone set and Sub in both ears in the other, and when the sub rx is off there is Main in both. I'll be using a Yamaha CM-500 and a gaming headset so I'm wondering if I should be loading the audio with 2 headphones without any buffering etc. A cheap mixer with separate amps would be good and may give better volume control although the gamers have an inline volume control on the lead. A quick search however hasn't found a mixer that separates the input channels. __ 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 li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
How are others using SO2R avoiding same band transmission and subsequent receiver damage? SO2R controllers like the microHAM MK2R+ have built-in same band interlocks that prevent PTT if both rigs are on the same band or if one rig stops responding to control polling. Some of the contest software also prevents selecting the same band on both rigs. I have not seen any dedicated hardware that compares band data from the K3 or Yaesu rigs and opens the PTT lines or asserts the inhibit lines if both rigs are on the same band but it would not be difficult to do so with a PIC or even a programmable gate array. 73, ... Joe, W4TV On 2014-06-01 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ 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 li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
A simple interlock can be built with a single quad XOR gate package, half a dual 4 input NOR package and a few transistors/resistors if one is driving the inhibit input. Add half of a quad NOR gate package if you want to disable PTT. 73, ... Joe, W4TV On 2014-06-01 10:54 AM, Joe Subich, W4TV wrote: How are others using SO2R avoiding same band transmission and subsequent receiver damage? SO2R controllers like the microHAM MK2R+ have built-in same band interlocks that prevent PTT if both rigs are on the same band or if one rig stops responding to control polling. Some of the contest software also prevents selecting the same band on both rigs. I have not seen any dedicated hardware that compares band data from the K3 or Yaesu rigs and opens the PTT lines or asserts the inhibit lines if both rigs are on the same band but it would not be difficult to do so with a PIC or even a programmable gate array. 73, ... Joe, W4TV On 2014-06-01 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? Thanks, Jeff Larimore K0RG __ 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 li...@subich.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 li...@subich.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] O.T. Learning Morse Code
I'm surprised to learn that there is at least one other living human being that knows what an APL golfball is. The Selectric was a great machine. I only ever used it as a terminal - but it sure had a pleasant keyboard. I don't work nearly as much cw as I would like to. I've always had some kind of mental block. I just can't seem to recognize characters fast enough, no matter how many hours (100's) I've spent just copying code. On a good day I can maybe get to 15 wpm. Mostly, in a QSO, I'm more like 12 wpm. My father could copy 25 WPM in his head like someone was talking to him on the phone. Whatever genes he had that enabled that, he certainly didn't pass them on to me. Doug -- K0DXV On 05/31/2014 10:02 PM, Walter Underwood wrote: Should be able to find a typewriter in fine working condition here: http://www.losaltosbusinessmachines.com/ My all time favorite typewriter is an IBM Correcting Selectric II. An APL golfball would be icing on the cake. wunder K6WRU On May 31, 2014, at 8:26 PM, WILLIS COOKE via Elecraft elecraft@mailman.qth.net wrote: I had to learn to copy at least three times. First, I memorized the code from the Boy Scout Handbook with dots and dashes. That was good for about 5 wpm. Then I learned to copy with block printing and that worked well to almost 20, but I could not get there. I had to learn to copy with cursive to get the extra back when you had to get a minute perfect copy for the examiner. I am still working on head copy but for some reason I have to hold a pencil and make marks that even I can't read most of the words to copy. Finding a mill that works well is a challenge these days. The ships that I have worked on have several mills sitting around frozen up, but none that work well. I don't think there are any typewriter repairmen left around to rework a mill. Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart On Saturday, May 31, 2014 7:25 PM, Fred Jensen k6...@foothill.net wrote: You are right Chuck, this is true, many will verify it. If I'm writing it down, the translation path is hear soundknow letter/number [or maybe word]recall shape of written character[s]write character[s]. With a mill, it's hear soundsmove fingers. I think it's that recall ... step that breaks the continuous copying process, it requires thinking, and if you learned on a mill, or have used a mill a lot, you're not used to doing any thinking. When I was at the coastal marine station so many years ago, my mind would wander while in traffic with a ship ... OK, I was 16, 16-yr old minds wander a lot. :-) But, it's just evidence that I wasn't thinking about what I was copying Copying on a mill, and to a large extent on a keyboard, I have no idea what I copied when I'm done, without reading it, it's muscle-memory and it did not go through my alleged brain. I'm not a musician, but my brother is [however, he makes his living writing software :-)] and he tells me playing the piano is basically muscle memory ... see notesmove fingers. It goes a bit beyond that however, there is a distinct difference between a mill and a computer keyboard for most. I can type faster [from hard copy text] on a desktop keyboard than I can on a mill. However, I can copy Morse [groups or text] faster on a mill than than that same keyboard. On a mill, I'm good for 30-35 WPM. On a standard sized desktop keyboard, 30 is tops and will have typos. On a laptop or other smaller keyboard, I sort of top out at 20-25 ... or less depending on the keyboard. I really don't *know* why, but I suspect that the longer key travel forces a rhythm that syncs with the Morse. The worst of all keyboards to touch type on are the flat-panel ones with no key travel. Just in case there are any out there looking for a CW Elmer, the CWOps group runs an international CW Academy. They use a well proved methodology, a free video-conferencing program with competent instructors, flexible schedules, and there's lots of on-air support from the members on the 3 CWT's each Wednesday. cwops.org There is usually a waiting list but it goes fast. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 5/31/2014 4:08 PM, Chuck Smallhouse wrote: I was tasked teaching much older(17) and lower ranked Radiomen, Morse code, via using a typewriter for copying. It was a learning experience for me, as I found this method much easier to learn, than by writing down the words and messages by hand. It seemed as if the code characters went directly from the ears to the typing fingers, totally bypassing any pondering in the brain. __ 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
Re: [Elecraft] K3 Receiver Protection
This would be a good place to use an Arduino. If the serial ports of the K3s are available, it would only take a small bit of code to achieve this. Doug -- K0DXV On 05/31/2014 10:46 PM, Don Wilhelm wrote: Jeff, That is a logic question seeking an answer. I don't know of a simple solution, but it is a matter of selecting a match of the outputs of 2 band data decoders. If any two are the same, assert TX INH to both K3s. That function could be implemented with a number of NAND gates or XOR gates at the outputs of the 2 band decoders. The exact implementation of the logic gates is left to the student, there are several possibilities, but it would take a number of external logic gates to implement. If you are really into logical devices, you could program a chip to do that directly from the band data outputs - if all 4 of the outputs from both K3s are a match, assert TX INH to both transceivers. I do not know of an existing device that will provide that function, so the implementation would have to be created 'from scratch'. Yes, it is possible, it is just a matter of a few logic gates. 73, Don W3FPR On 6/1/2014 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? __ 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 k0...@aol.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
If the serial ports of the K3s are available, They tend not to be when doing SO2R - the logger has them tied up. Of course if the Arduino is capable of handling four 38,400 bps ports at the same time one can pass the logger data through the device. 73, ... Joe, W4TV On 2014-06-01 11:19 AM, Doug Person via Elecraft wrote: This would be a good place to use an Arduino. If the serial ports of the K3s are available, it would only take a small bit of code to achieve this. Doug -- K0DXV On 05/31/2014 10:46 PM, Don Wilhelm wrote: Jeff, That is a logic question seeking an answer. I don't know of a simple solution, but it is a matter of selecting a match of the outputs of 2 band data decoders. If any two are the same, assert TX INH to both K3s. That function could be implemented with a number of NAND gates or XOR gates at the outputs of the 2 band decoders. The exact implementation of the logic gates is left to the student, there are several possibilities, but it would take a number of external logic gates to implement. If you are really into logical devices, you could program a chip to do that directly from the band data outputs - if all 4 of the outputs from both K3s are a match, assert TX INH to both transceivers. I do not know of an existing device that will provide that function, so the implementation would have to be created 'from scratch'. Yes, it is possible, it is just a matter of a few logic gates. 73, Don W3FPR On 6/1/2014 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? __ 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 k0...@aol.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 li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
While you're in the programming mode, how about some preventative medicine. Prevent one rig from switching to a band that the other rig is on. If it tries, switch back to the old band. 73 de Brian/K3KO On 6/1/2014 11:19 AM, Doug Person via Elecraft wrote: This would be a good place to use an Arduino. If the serial ports of the K3s are available, it would only take a small bit of code to achieve this. Doug -- K0DXV On 05/31/2014 10:46 PM, Don Wilhelm wrote: Jeff, That is a logic question seeking an answer. I don't know of a simple solution, but it is a matter of selecting a match of the outputs of 2 band data decoders. If any two are the same, assert TX INH to both K3s. That function could be implemented with a number of NAND gates or XOR gates at the outputs of the 2 band decoders. The exact implementation of the logic gates is left to the student, there are several possibilities, but it would take a number of external logic gates to implement. If you are really into logical devices, you could program a chip to do that directly from the band data outputs - if all 4 of the outputs from both K3s are a match, assert TX INH to both transceivers. I do not know of an existing device that will provide that function, so the implementation would have to be created 'from scratch'. Yes, it is possible, it is just a matter of a few logic gates. 73, Don W3FPR On 6/1/2014 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? __ 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 k0...@aol.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 als...@nc.rr.com - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3722/7103 - Release Date: 06/01/14 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
Check out a 74LS85 4 bit comparator. A single chip with the A=B output going to each of the K3's ACC pin 7, TX INH inputs. 73, Fred KE7X -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, June 01, 2014 9:28 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Receiver Protection If the serial ports of the K3s are available, They tend not to be when doing SO2R - the logger has them tied up. Of course if the Arduino is capable of handling four 38,400 bps ports at the same time one can pass the logger data through the device. 73, ... Joe, W4TV On 2014-06-01 11:19 AM, Doug Person via Elecraft wrote: This would be a good place to use an Arduino. If the serial ports of the K3s are available, it would only take a small bit of code to achieve this. Doug -- K0DXV On 05/31/2014 10:46 PM, Don Wilhelm wrote: Jeff, That is a logic question seeking an answer. I don't know of a simple solution, but it is a matter of selecting a match of the outputs of 2 band data decoders. If any two are the same, assert TX INH to both K3s. That function could be implemented with a number of NAND gates or XOR gates at the outputs of the 2 band decoders. The exact implementation of the logic gates is left to the student, there are several possibilities, but it would take a number of external logic gates to implement. If you are really into logical devices, you could program a chip to do that directly from the band data outputs - if all 4 of the outputs from both K3s are a match, assert TX INH to both transceivers. I do not know of an existing device that will provide that function, so the implementation would have to be created 'from scratch'. Yes, it is possible, it is just a matter of a few logic gates. 73, Don W3FPR On 6/1/2014 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? __ 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 k0...@aol.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 li...@subich.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 fc...@ece.montana.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/KX3 and Bluetooth Headphones
Mark, Latency on this unit is about ~100msec.. With my QRS code it'll do the job -- I hope... But it'll do just fine for me to be able to monitor while away from the rig doing chores -- Lonesome George :-).. Dave G KK7SS Richland, WA Be aware that bluetooth audio is useless for CW work. There's too much latency to use it with a paddle. The sidetone you hear in the bluetooth headset is out of sync with the keying. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Receiver Protection
The simplest get you there now solution is to simply disable complimentary bands in each K3. Set up the left radio for 80-20-10 and the right radio for 160-40-15, for one example. You didn't buy Steppirs to exclude bands on each radio, but this will give you protection now while you pursue one of the other suggestions. (Obviously, avoid using direct frequency entry to change bands...) Also, highly recommend purchasing this book, for the next steps of keeping one radio from bothering the other: http://www.inrad.net/product.php?productid=248 Have fun! 73 jeff wk6i On Sun, Jun 1, 2014 at 9:44 AM, Cady, Fred fc...@ece.montana.edu wrote: Check out a 74LS85 4 bit comparator. A single chip with the A=B output going to each of the K3's ACC pin 7, TX INH inputs. 73, Fred KE7X -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, June 01, 2014 9:28 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Receiver Protection If the serial ports of the K3s are available, They tend not to be when doing SO2R - the logger has them tied up. Of course if the Arduino is capable of handling four 38,400 bps ports at the same time one can pass the logger data through the device. 73, ... Joe, W4TV On 2014-06-01 11:19 AM, Doug Person via Elecraft wrote: This would be a good place to use an Arduino. If the serial ports of the K3s are available, it would only take a small bit of code to achieve this. Doug -- K0DXV On 05/31/2014 10:46 PM, Don Wilhelm wrote: Jeff, That is a logic question seeking an answer. I don't know of a simple solution, but it is a matter of selecting a match of the outputs of 2 band data decoders. If any two are the same, assert TX INH to both K3s. That function could be implemented with a number of NAND gates or XOR gates at the outputs of the 2 band decoders. The exact implementation of the logic gates is left to the student, there are several possibilities, but it would take a number of external logic gates to implement. If you are really into logical devices, you could program a chip to do that directly from the band data outputs - if all 4 of the outputs from both K3s are a match, assert TX INH to both transceivers. I do not know of an existing device that will provide that function, so the implementation would have to be created 'from scratch'. Yes, it is possible, it is just a matter of a few logic gates. 73, Don W3FPR On 6/1/2014 12:04 AM, Jeff via Elecraft wrote: My station consists of two K-3's, each with a dedicated legal limit amplifier and SteppIr antenna. To minimize interference between bands I am using Array Solutions Bandpass filters. However, if both rigs accidentally wind up on the same band I run the risk of overloading the front end of the opposite rig and damaging the receiver (which I've done once...). Does anyone have a way of taking the band data information and disabling transmit capability on both rigs if they are on the same band? How are others using SO2R avoiding same band transmission and subsequent receiver damage? Anyone have any experience with the Array Solutions AS-RXFEP front end protector? __ 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 k0...@aol.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 li...@subich.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 fc...@ece.montana.edu __ 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 wk6i.j...@gmail.com -- Jeff Stai ~ wk6i.j...@gmail.com Twisted Oak Winery ~
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
On 6/1/2014 7:45 AM, Joe Subich, W4TV wrote: You should have no problems with paralleling 2 headphones on the audio output of the K3, with no need for any external mixer. I would not risk it. The K3 headphone amplifier is only rated for 105 mW at 16 Ohms. I agree with Don that it's perfectly fine to parallel two sets of headphones on the output of a K3. The load impedance of most modern headphones is much greater than 16 ohms. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] O.T. Learning Morse Code
Of all the programming languages whose demise and disappearance I lament, I lament the demise and disappearance of APL the least. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 6/1/2014 8:15 AM, Doug Person via Elecraft wrote: I'm surprised to learn that there is at least one other living human being that knows what an APL golfball is. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
On 2014-06-01 2:11 PM, Jim Brown wrote: I agree with Don that it's perfectly fine to parallel two sets of headphones on the output of a K3. The load impedance of most modern headphones is much greater than 16 ohms. You can't guarantee that with any two random headphones - my shack has headphones anywhere from 8 Ohms to 200 Ohms. Paralleling headphones of with differing impedance and sensitivity will result in one operator getting too much or too little audio and may require gain high enough to result in excess distortion or dissipation. 73, ... Joe, W4TV On 2014-06-01 2:11 PM, Jim Brown wrote: On 6/1/2014 7:45 AM, Joe Subich, W4TV wrote: You should have no problems with paralleling 2 headphones on the audio output of the K3, with no need for any external mixer. I would not risk it. The K3 headphone amplifier is only rated for 105 mW at 16 Ohms. I agree with Don that it's perfectly fine to parallel two sets of headphones on the output of a K3. The load impedance of most modern headphones is much greater than 16 ohms. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
On 6/1/2014 11:29 AM, Joe Subich, W4TV wrote: You can't guarantee that with any two random headphones - my shack has headphones anywhere from 8 Ohms to 200 Ohms. I would change that. Simple Ohms Law suggests that's a very bad idea, for reasons noted in the next sentence. Paralleling headphones of with differing impedance and sensitivity will result in one operator getting too much or too little audio and may require gain high enough to result in excess distortion or dissipation. That may be true, and is the only negative for paralleling them. But it also depends on the voltage sensitivity of the headphones involved. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
I've used this headphone distribution amp, it has jacks and pots for four listeners. $25. http://www.amazon.com/Behringer-HA400-4-Channel-Stereo-Headphone/dp/B000KIPT30/ wunder K6WRU On Jun 1, 2014, at 11:29 AM, Joe Subich, W4TV li...@subich.com wrote: On 2014-06-01 2:11 PM, Jim Brown wrote: I agree with Don that it's perfectly fine to parallel two sets of headphones on the output of a K3. The load impedance of most modern headphones is much greater than 16 ohms. You can't guarantee that with any two random headphones - my shack has headphones anywhere from 8 Ohms to 200 Ohms. Paralleling headphones of with differing impedance and sensitivity will result in one operator getting too much or too little audio and may require gain high enough to result in excess distortion or dissipation. 73, ... Joe, W4TV On 2014-06-01 2:11 PM, Jim Brown wrote: On 6/1/2014 7:45 AM, Joe Subich, W4TV wrote: You should have no problems with paralleling 2 headphones on the audio output of the K3, with no need for any external mixer. I would not risk it. The K3 headphone amplifier is only rated for 105 mW at 16 Ohms. I agree with Don that it's perfectly fine to parallel two sets of headphones on the output of a K3. The load impedance of most modern headphones is much greater than 16 ohms. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.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 wun...@wunderwood.org -- Walter Underwood wun...@wunderwood.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
I got a 3-channel headphone volume booster at RS for $7.95 [IIRC]. Runs on 2 AA's, one gozinto, three gozoutofs. The audio on my KX1 and K2 is too low for my compromised hearing. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 6/1/2014 11:48 AM, Walter Underwood wrote: I've used this headphone distribution amp, it has jacks and pots for four listeners. $25. http://www.amazon.com/Behringer-HA400-4-Channel-Stereo-Headphone/dp/B000KIPT30/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Splitting main/sub audio to 2 headphones
On 2014-06-01 2:39 PM, Jim Brown wrote: Paralleling headphones of with differing impedance and sensitivity will result in one operator getting too much or too little audio and may require gain high enough to result in excess distortion or dissipation. That may be true, and is the only negative for paralleling them. But it also depends on the voltage sensitivity of the headphones involved. As I implied in my statement - one can have differing sensitivities even with headphones of he same nominal impedance and even differing sensitivity between older and newer units of the same manufacturer and model. That's why the safest course of action is to always use an amplified splitter with individual gain controls. 73, ... Joe, W4TV On 2014-06-01 2:39 PM, Jim Brown wrote: On 6/1/2014 11:29 AM, Joe Subich, W4TV wrote: You can't guarantee that with any two random headphones - my shack has headphones anywhere from 8 Ohms to 200 Ohms. I would change that. Simple Ohms Law suggests that's a very bad idea, for reasons noted in the next sentence. Paralleling headphones of with differing impedance and sensitivity will result in one operator getting too much or too little audio and may require gain high enough to result in excess distortion or dissipation. That may be true, and is the only negative for paralleling them. But it also depends on the voltage sensitivity of the headphones involved. __ 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 li...@subich.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] O.T. Learning Morse Code
A final comment to the issue of keyboard vs mill. I find that the keyboard tactile feel is not as good as a old hard mechanical mill. Albeit you need more pressure to complete the stroke, but it is positive. Something like the feedback sound of the paper being hit. I think mainly because I learned to type on a mill decades ago, hi. But here is one thing I will comment on, when typing at high speed on a teletype machine you can get to the point of going fast enough to actually feel the actuator riding over the cam... Quite a sensation at the limit of the machine, 60 wpm as I recall. Mel, K6KBE On Sunday, June 1, 2014 11:40 AM, Fred Jensen k6...@foothill.net wrote: Of all the programming languages whose demise and disappearance I lament, I lament the demise and disappearance of APL the least. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 6/1/2014 8:15 AM, Doug Person via Elecraft wrote: I'm surprised to learn that there is at least one other living human being that knows what an APL golfball is. __ 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 farrerfo...@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] O.T. Learning Morse Code
There can be no greater example of a geek language than APL. I've known a few research scientists that actually used it. Looking at APL code was like looking at something written on another planet by a non-human culture. It was, however, a true first generation language having been initially developed in 1960. Fortunately for us old timers there was Fortran - which the human mind could comprehend. By the end of the 60's, the C language was born, and, as they say, the rest is history. C has become the standard pattern for most of the languages used today. So, as hams with inquisitive minds and a desire to build and create, programming is a wonderful alternative to building hardware, albeit not the least bit less frustrating. But it can be real fun. The Elecraft gear all come with wonderfully thought through programmable command sets which means it doesn't take a whole lot of coding to get a piece of gear to do something for you. Programming is also a good way to light up a few more brain cells and keep the neural pathways from drying up. Also, BTW Fred, APL has neither met its demise or completely disappeared. There are apparently a few ancient algorithms still in use in research. Probably because they still work and nobody has the slightest idea how to translate APL into anything comprehensible. 73, Doug -- K0DXV On 06/01/2014 12:19 PM, Fred Jensen wrote: Of all the programming languages whose demise and disappearance I lament, I lament the demise and disappearance of APL the least. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 6/1/2014 8:15 AM, Doug Person via Elecraft wrote: I'm surprised to learn that there is at least one other living human being that knows what an APL golfball is. __ 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 k0...@aol.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] MAB board order now fully subscribed
On May 27, 2014, at 10:12 PM, Chip Stratton c...@strattonfamily.us wrote: I have takers for the two extra sheets of MAB boards so more volunteers not needed. Someone may be willing to let an individual board or two go, but I'm sure they will post it to the reflector when the time comes. 73 Chip AE5KA Maybe I missed something — What the heck is a MAB for the K2? Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ 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] Antenna choices
On May 25, 2014, at 8:31 PM, Joshua Gould jg.k8...@gmail.com wrote: I am going to be acquiring a 56 foot Rohn BX tower. I already have a G5RV that I am planning on putting up (still not sure where I'm going to attach the other end of it to, One end will go on the tower.) I'm going to put up a 2m/440 vertical at some point up near the top of the tower. I keep throwing around an HF vertical or a beam. The verticals seem to cover more bands, but the beams are directional. (Would also need a rotor,.. Can a multi band yagi be tuned to a different band, or will it only work on the bands that it's designed for? I would not use a multi-band yagi on a band it was not designed for. That said, I would recommend you put a tribander yagi on the top of that tower. You can then hang dipoles for the WARC bands, as well as for 40/80m. You also might consider shunt-feeding the tower for 160/80m. I have an article on my blog on how I support 9 bands from one 50 foot tower: - A3S/A743 - supports 10/15/20m, and the dipole attachment for 40m. (http://boringhamradiopart.blogspot.com/2009/07/cushcraft-a3sa743.html) - homebrew trap dipole supports 12/17/30m. (http://boringhamradiopart.blogspot.com/2010/02/warc-trap-dipole.html) - Shunt feed with matching network supports 80/160m. (http://boringhamradiopart.blogspot.com/2009/04/shunt-feeding-short-tower-on-80-and.html) And here’s an article where I talk about the experience of using a tribander: http://boringhamradiopart.blogspot.com/2009/03/tribander-experience.html Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com Quote: Boot, you transistorized tormentor! Boot! -- Archibald Asparagus, VeggieTales Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 M/M Contest stations
On Apr 14, 2014, at 12:14 PM, Stephen Bloom sbl...@acsalaska.net wrote: I have a K3 line at my home station ...and of course am a real fan. I am often on the team at the KL7RA M/M station here. We have an ongoing (good natured) dispute about whether the K3 is a feasible M/M rig (not because of quality, but because people are so personal in the way they like to have it configured). I know I've had no problems at all using K3s in M/S ops. I'm wondering if there are some serious mostly/all K3 M/Ms out there ..and if so ...if I could weasel an invite sometime when I'm not committed up here. I can do pretty high rate on cw, don't eat much and am paper trained :) NQ4I uses all Ten-Tec Orions (well, there’s one FT-1000MP on the 160m station) in his station. They have tried the K3, once on the 160m station, and once on one of the 15m stations. The 15m rig ended the contest broken — apparently fried the front-end from all the ambient RF. The Orions are OK. I really like the sound of the K3 way better. Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPA100 Hi PA current ?
Glenn, What was the DC voltage at 100 watts keydown? It should be 12 volts or greater - more is better, 13+ is good. If the voltage drops, the current will increase (and I believe the efficiency decreases) to maintain your 100 watt output level. More current, more heat. An off center fed antenna may present a reasonable SWR, but SWR does not tell the whole tale. OCF antennas are infamous for RF-in-the-shack problems, so you might have some RF floating around to create 'strange happenings'. 73, Don W3FPR On 6/1/2014 1:06 AM, WA7SPY wrote: I have had my KXPA100 for 5 months or so now. I have loaded the latest firmware Wayne sent out a few weeks ago for beta testing. My KXPA100 has the Automatic antenna tuner installed. I run the amp into a Carolina Windom 40 and the automatic antenna tuner works well using this antenna on all the bands except 160 meters of course. I normally don't operate on that band anyway. I was running the amp on 40 meters at 100 watts doing back to back rag chewing CW QSO's this evening. The amp shutdown and my KX3 display showed Hi PA current. The amp was very hot to the touch which makes me believe the amp had to shut down to protect the finals. The antenna SWR shows under 1.2. to 1. Is this normal behavior for the KXPA100? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KAT500 Firmware Revisions for MAC OS X
The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Firmware Revisions for MAC OS X
Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to als...@nc.rr.com - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3722/7103 - Release Date: 06/01/14 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3722/7103 - Release Date: 06/01/14 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Looking for a K3 Remote Station in Asia and/or Oceania
Hey Gang, I thought it would be interesting to have some Remote stations available at the WRTC HQ station at WRTC 2014 this year. This will allow all those folks who are coming, but who are not competitors, to take part in the IARU fun. It will also provide an additional set of logs for the immediate log check. Their will be the WR1TC demo station at the HQ, which will be a FB New England station. However, I thought it would be really cool to have some Remote stations active at HQ as well. I started by locating a couple of New England stations that can be operated remotely. But, after talking with some friends, I found out their was interest from stations around the world. Right now, I have interest from two Multi-Single stations, where the remote at WRTC HQ will be one of the operating positions in these stations. I have a station in EU, and one in SA. Of course, would be a total blast to have a stations from Asia and Oceania represented. If you have access to, or know someone who has a station in Asia or Oceania which has a K3 than can be remoted, and would be interested in doing this, please get in touch with me directly. All the stations we are going to set up will be using Microbit RemoteRig RRC units; the remote station could be a single op, or any type of Multi. We can make it work. We will have plenty of internet bandwidth, prefer N1MM for logging and will work with you to set things up long before IARU. 73, Gerry Hull, W1VE ge...@w1ve.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] KAT500 Firmware Revisions for MAC OS X
Ted, I have a Mac, I have a KAT500, and I have MCU 1.67 installed on my KAT500 and I am using the KAT500 Utility program version 1.14.2.1. Everything works hunky dory. Now, I am not sure why the Elecraft web page suggests 1.14.2.20 except for the fact that it does denote the latest Windows release. The difference between the .1 and .20 at the end of the Windows versus Mac releases may refer to a build number which is a common thing to include in the version identification (having been a programmer for almost 50 years). So, these different numbers may mean different builds which is not unusual since I think the software for the Windows versus the Mac (and Linux) are done by two different people -- or, at least it used to be two different people. And, their build cycles could easily be different (and likely to be different). But, from my experience you can load 1.14.2.1 utility and use that to load up MCU 1.67. 73, phil, K7PEH On Jun 1, 2014, at 3:28 PM, Dauer, Edward eda...@law.du.edu wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to phys...@mac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3: simple headphone splitter
A very elegant solution that seems to have become a defacto standard here in Tampa is the Behringer HA400 headset amp. Several years ago I purchased one for our local club, ther are now 4 there, plus it has also migrated to the St Petersburg radio club. Simply plug a stereo mini plug into the K3 headphone or line out jack (NOT into the speaker out jack) and plug the othe side of it into a mini plug to stereo quarter inch plug into the input jack on the HA400. Plug the HA400 wall wart into the power socket (or, if portable, two 9 volt batteries in parallel give 30-40 hours of operation) and plug up to 4 headsets into the HA400. Best of all, each headset has its own volume control on the HA400. You can even feed a audio recorder to record both sides of the conversation if you turn monitor on in the K3. I have used this headset mixer in my home station, in the club and even at high power Multi-Multi environments with a dozen kilowatt amps and never had any RFI. $20 at any Guitar Center or on Amazon. I've no pecuniary interest in the device, just that it works and works and works. 73 Lu Romero W4LT (currently /YO2) I'm using an IPad. It decides how things should be spelled. __ 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] MAB board order now fully subscribed
One of these: http://www.genebitsystems.com/david/K2MiscAccessoryBoard/index.htm 73, Matt VK2RQ On 29 May 2014, at 12:40 am, Bill Coleman aa...@arrl.net wrote: On May 27, 2014, at 10:12 PM, Chip Stratton c...@strattonfamily.us wrote: I have takers for the two extra sheets of MAB boards so more volunteers not needed. Someone may be willing to let an individual board or two go, but I'm sure they will post it to the reflector when the time comes. 73 Chip AE5KA Maybe I missed something ― What the heck is a MAB for the K2? Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [KX3] Push-To-Talk Mic Adapter
I recently purchased an inexpensive condenser microphone for the KX3. While it's very functional for my needs, I was frustrated with the need to manually push the XMIT button every time I wanted TX. I can't run VOX because I have too many interruptions. So I built a little PTT adapter for my Heil foot switch. This adapter can probably work for any number of switches for PTT, so I thought I'd share the design and implementation. http://www.wn8u.net/?p=161 Hopefully no one minds my use of a little bandwidth to share this. Cheers! Mark, WN8U __ 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] KAT500 Firmware Revisions for MAC OS X
There should be no reason that Ted should have to borrow a PC in order to update the firmware in his KAT500. The OSX utility should have the same functionality as the Windows version. In any case, there's also no reason he should have to put up with a lack of courtesy when asking a question on the reflector. Ted- Did you try searching for the firmware manually? 73, Scott, N9AA On 6/1/14 6:35 PM, Brian Alsop wrote: Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Firmware Revisions for MAC OS X
Sad but true, Brian -- and not so much with Elecraft who do provide support for Windows, OS X and Linux. I purchased a really inexpensive ($280) HP laptop for my shack, even though I mostly use MacBooks: There's just too much Windows software for ham radio out there to not have Windows available. Phil W7OX On 6/1/14, 3:35 PM, Brian Alsop wrote: Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Firmware Revisions for MAC OS X
All KAT500 Utilities versions for Windows, Mac and Linux should be able to fetch and install current firmware. Try clicking Copy Files from Elecraft, and it should get the current production firmware from our FTP server to your local computer file system. If it does not, you can use your web browser to copy files from ftp://ftp.elecraft.com and navigate to KAT500/firmware. Once you have the files in a folder on your local computer, use the KAT500 utility firmware tab browse button to move to that folder location. New KAT500 utility versions add dialogs for new firmware functions. But you can do all the new things with an older utility with the command tester and the KAT500 serial command reference. 73 de Dick, K6KR On Jun 1, 2014, at 15:28, Dauer, Edward eda...@law.du.edu wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@elecraft.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] KAT500 Firmware Revisions for MAC OS X
I'm currently encoding the build date as the version #. 1.14.2.1 was built on February 1, 2014. Often W4SMT uses the same version number for equivalent function, even if it's done later. Dick, K6KR On Jun 1, 2014, at 15:55, Phil Hystad phys...@mac.com wrote: Ted, I have a Mac, I have a KAT500, and I have MCU 1.67 installed on my KAT500 and I am using the KAT500 Utility program version 1.14.2.1. Everything works hunky dory. Now, I am not sure why the Elecraft web page suggests 1.14.2.20 except for the fact that it does denote the latest Windows release. The difference between the .1 and .20 at the end of the Windows versus Mac releases may refer to a build number which is a common thing to include in the version identification (having been a programmer for almost 50 years). So, these different numbers may mean different builds which is not unusual since I think the software for the Windows versus the Mac (and Linux) are done by two different people -- or, at least it used to be two different people. And, their build cycles could easily be different (and likely to be different). But, from my experience you can load 1.14.2.1 utility and use that to load up MCU 1.67. 73, phil, K7PEH On Jun 1, 2014, at 3:28 PM, Dauer, Edward eda...@law.du.edu wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to phys...@mac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] I
Via iPhone Cycle Siren, Inches 877 477-4736 __ 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] KAT500 Firmware Revisions for MAC OS X
Guys, I apologize if my posting offended anybody. This is not such a far fetched question. In fact my son-in-law has such a household. It made video chats with our 4 year old grandson a real problem. He won't even use SKYPE and insists on FACETIME. So how was this resolved? He loaned me a 1 kilobuck MAC laptop Now we can do FACETIME too. 73 de Brian/K3KO On 6/1/2014 22:59, Scott Manthe wrote: There should be no reason that Ted should have to borrow a PC in order to update the firmware in his KAT500. The OSX utility should have the same functionality as the Windows version. In any case, there's also no reason he should have to put up with a lack of courtesy when asking a question on the reflector. Ted- Did you try searching for the firmware manually? 73, Scott, N9AA On 6/1/14 6:35 PM, Brian Alsop wrote: Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to als...@nc.rr.com - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3722/7103 - Release Date: 06/01/14 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3722/7103 - Release Date: 06/01/14 __ 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] Push-To-Talk Mic Adapter
Hi Mark, Tanks for posting this idea. You can also do PTT via the ACC2 jack; just set up the ACC2 IO menu entry as LO=PTT or HI=PTT as the case may be. 73, Wayne N6KR On Jun 1, 2014, at 3:58 PM, Mark Tannert m...@tannert.net wrote: I recently purchased an inexpensive condenser microphone for the KX3. While it's very functional for my needs, I was frustrated with the need to manually push the XMIT button every time I wanted TX. I can't run VOX because I have too many interruptions….. __ 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] KAT500 Firmware Revisions for MAC OS X
Be careful, Brian. I bought one for my cousin to use, an iBook, back in 2005. He passed away before I was able to give it to him. I started using it just to see what the fuss was all about. I was hooked -- and none of my MacBooks have cost less than 2 kilobucks as outfitted. Beware :-) My main MacBook is dual-boot into Windows 7. There's just too much software I use tethering me to the Windows world. 73, Phil W7OX On 6/1/14, 4:38 PM, Brian Alsop wrote: Guys, I apologize if my posting offended anybody. This is not such a far fetched question. In fact my son-in-law has such a household. It made video chats with our 4 year old grandson a real problem. He won't even use SKYPE and insists on FACETIME. So how was this resolved? He loaned me a 1 kilobuck MAC laptop Now we can do FACETIME too. 73 de Brian/K3KO On 6/1/2014 22:59, Scott Manthe wrote: There should be no reason that Ted should have to borrow a PC in order to update the firmware in his KAT500. The OSX utility should have the same functionality as the Windows version. In any case, there's also no reason he should have to put up with a lack of courtesy when asking a question on the reflector. Ted- Did you try searching for the firmware manually? 73, Scott, N9AA On 6/1/14 6:35 PM, Brian Alsop wrote: Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] MAC Utility for KAT500
Thanks, Phil, and all others who replied. Borrowing a Windows laptop wasn¹t easy but it worked; after which I went back at it with the Mac. At that point the OS X - based Utility recognized MCU 1.67, which was of course resident in the KAT-500 by then, courtesy of Windows. I have no explanation for why it failed the first N times. Probably operator error. Or a quantum tunnel into a previous time. In any case, it¹s nice to have the reflector and friends when you need it. Tnx, Ted, KN1CBR Ted, I have a Mac, I have a KAT500, and I have MCU 1.67 installed on my KAT500 and I am using the KAT500 Utility program version 1.14.2.1. Everything works hunky dory. Now, I am not sure why the Elecraft web page suggests 1.14.2.20 except for the fact that it does denote the latest Windows release. The difference between the .1 and .20 at the end of the Windows versus Mac releases may refer to a build number which is a common thing to include in the version identification (having been a programmer for almost 50 years). So, these different numbers may mean different builds which is not unusual since I think the software for the Windows versus the Mac (and Linux) are done by two different people -- or, at least it used to be two different people. And, their build cycles could easily be different (and likely to be different). But, from my experience you can load 1.14.2.1 utility and use that to load up MCU 1.67. 73, phil, K7PEH On Jun 1, 2014, at 3:28 PM, Dauer, Edward eda...@law.du.edu wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KPA-500 fan noise
I have been running some RTTY on 17M and FSK-441 on 6M meteor scatter, both of which have full period signals for 30 seconds or so. I have reduced power to 250W, but by the end of a transmissions the fan has gone to 747 short field take off mode at about 71C. Am I missing something here or is this normal? JIm, W4ATK __ 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] Antenna choices
Well, I've only been licensed since 1958 and although I was using CW and SSB in the early 60s on 2M and working MS and EME in the 70s, I too never set foot on 6-meters until 2009. On Field Day (operating from home) I tried the K3 on six. Of course, it's stone deaf so I cobbled up a preamp from an old broadband Avantek amplifier, and hooked up my 40/80 meter wire dipole, fed with almost 200' of RG8. The coax loss was my matching network since I don't have the ATU. There was a local yokel club operating from a nearby mountain cluttering up 50.125 and there was some Es ongoing. I tuned around a bit and heard a CW CQ on 50.123 under the splatter from the local on SSB. It was Jl8GFB. I called and worked him at 0014Z. At 0122Z I heard another CQ on 50.096 and worked JA7WSZ. So the band was open to JA for more than an hour. I worked 43 stations and never heard another station work the JAs. Wes N7WS On 5/31/2014 8:18 PM, Fred Jensen wrote: Been licensed 61 years, made my first ... and only ever ... 6m QSO about 4 years ago, loading my tri-bander with the K3/KAT3 ... he was a KH6. There is the electromagnetic physics of antennas, which can be overly precise, and then there is the reality -- a lot works that actually shouldn't have. The Last Bastion of Ham Homebrew. :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org I'm in Northern California __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Repair Broken Power Pole
On 5/31/2014 4:03 PM, Don Wilhelm wrote: what did you do the break the APP housing, they are pretty sturdy things. Once I looked more carefully at it, it turns out the wound was self-inflicted. My operating bench has no clearance space behind it and a shelf only six inches or so above it, so it's difficult to get to the back of gear, let alone see what you're doing when you're back there. The failure occurred when I tried plugging in the DC power connector and missed by one position, so that the red 12V hot lead plugged into the black jack, partially melting it. Thanks for all the detailed suggestions. The solution was to remove the top panel, then the side panel. That gave me access to the jack, but when I removed it, the #14 wire soldered to the PCB came with it. To solder a new wire to the board, I needed access to the bottom side of the board -- my Hakko from the top side wasn't cutting it. So I removed most of the screws holding that bottom corner spacer, swiveled it out of the way of the iron, loosened several screws holding the bottom cover and propped it open with pliers so I could see that under-side solder pad. That let me make a good joint. Everything is all better now. Thanks for the advice. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-500 fan noise
Am I missing something here or is this normal? Sounds normal for mine. I've recently had mine on 52.525 in an FM QSO. I ended up at about 250W with short transmissions. That didn't surprise me much at all, because my KPA seems to produce quite a bit of heat on six meters anyway. Hit the dummy load and do some continuous carrier testing and see how long it takes to hit high speed. It won't take long. That's one screaming fan. By the way, you can sample those speeds just by going to the menu and changing the fan control setting. That menu item sets the minimum speed the fan will run (auto = off when below threshold). One thing you might try is to set the fan to the first or second speed (not auto) when you're operating those modes. That let's the fan run all the time at the speed you set, which allows it to cool in receive mode when it might normally kick down to the off mode until you key the next time. Don't miss understand, the fan control menu sets the MINIMUM speed the fan runs. It still kicks up faster for warmer operation. Gary -- Web: http://ag0n.net NodeOp Page: http://ag0n.net/irlp Node 3055: http://ag0n.net/irlp/3055 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft K2 filters?
As far I know I cannot see any filter options for the K2, am I correct? Currently looking at a K2 sn low 4XXX. It is advertised as It has 1.7kHz, 700Hz, 400Hz and 100Hz filters fitted . Is this possible. Thanks Gavin ZL1BBW __ 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 K2 filters?
Gavin, The K2 uses a single voltage-variable capacitance (varicap) diode-tuned crystal filter on the main RF board, and the filter bandwidths are programmable by the user within a moderate range. A separate fixed bandwidth crystal filter is present on the KSB2 SSB option board if installed. A no additional equipment procedure for adjusting the variable bandwidth filter is described in the K2 manual, but most operators use a computer-based spectrum analysis tool (e.g. Spectrogram) to visualize the filter passband while the tuning adjustment is being made. Check out Don, W3FPR's web page (http://w3fpr.com/) for a link to the free versions of Spectrogram and tips on adjusting the K2 filter settings for different modes and desired bandwidths. 73, Mike, K8CN -- View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-K2-filters-tp7589831p7589832.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Firmware Revisions for MAC OS X
Like Phil, I run exclusively Macs in the house. there are some Windows PC's here (a laptop that I never use and an old desktop.) When I was starting to program my radios via the computer, I threw a Windows in a VM for programming purposes. I now use that rather than a dedicated Windows machine. I've never had a problem. I'll probably use my iMac as the station computer because it's sitting here and I can. One thing I've never understood is why people think that Apple and Mac or Macintosh need to be typed in all capital letters... Joshua Gould K8WXA On Sun, Jun 1, 2014 at 7:46 PM, Phil Wheeler w...@socal.rr.com wrote: Be careful, Brian. I bought one for my cousin to use, an iBook, back in 2005. He passed away before I was able to give it to him. I started using it just to see what the fuss was all about. I was hooked -- and none of my MacBooks have cost less than 2 kilobucks as outfitted. Beware :-) My main MacBook is dual-boot into Windows 7. There's just too much software I use tethering me to the Windows world. 73, Phil W7OX On 6/1/14, 4:38 PM, Brian Alsop wrote: Guys, I apologize if my posting offended anybody. This is not such a far fetched question. In fact my son-in-law has such a household. It made video chats with our 4 year old grandson a real problem. He won't even use SKYPE and insists on FACETIME. So how was this resolved? He loaned me a 1 kilobuck MAC laptop Now we can do FACETIME too. 73 de Brian/K3KO On 6/1/2014 22:59, Scott Manthe wrote: There should be no reason that Ted should have to borrow a PC in order to update the firmware in his KAT500. The OSX utility should have the same functionality as the Windows version. In any case, there's also no reason he should have to put up with a lack of courtesy when asking a question on the reflector. Ted- Did you try searching for the firmware manually? 73, Scott, N9AA On 6/1/14 6:35 PM, Brian Alsop wrote: Are WINDOWS PC's banned from your household? Certainly you know somebody who owns a WINDOW's laptop. If the situation were reversed and I needed an APPLE computer for a few minutes to install new firmware, I'd beg or borrow one. 73 de Brian/K3KO On 6/1/2014 22:28, Dauer, Edward wrote: The current firmware version for the KAT500 is apparently MCU 1.67. To access it requires the KAT500 Utility version 14.2.20. That, however, seems to be available only for Windows. The latest utility version for Mac OS X on the website is 1.14.2.1. When I run that, the latest firmware version it finds is 1.41. Unfortunately 1.41 seems not to give the KAT500 the capability of tracking the frequency setting from the K3 as it tunes - with F/W 1.41 retunes only on the first dit. Am I doing something wrong? Is there a way to get 1.67 using a Mac (short of installing Windows on the Mac)? Thanks for whatever advice might be offered . . . Ted, KN1CBR __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jg.k8...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K2 filters?
In addition to the tuneable IF crystal filter, there are the KAF2 and KDSP audio filter option (check out the Elecraft website for details). 73, Matt VK2RQ On 2 Jun 2014, at 11:38 am, Mike K8CN mike.car...@unh.edu wrote: Gavin, The K2 uses a single voltage-variable capacitance (varicap) diode-tuned crystal filter on the main RF board, and the filter bandwidths are programmable by the user within a moderate range. A separate fixed bandwidth crystal filter is present on the KSB2 SSB option board if installed. A no additional equipment procedure for adjusting the variable bandwidth filter is described in the K2 manual, but most operators use a computer-based spectrum analysis tool (e.g. Spectrogram) to visualize the filter passband while the tuning adjustment is being made. Check out Don, W3FPR's web page (http://w3fpr.com/) for a link to the free versions of Spectrogram and tips on adjusting the K2 filter settings for different modes and desired bandwidths. 73, Mike, K8CN -- View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-K2-filters-tp7589831p7589832.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 options that are easier to install at build
I'm getting closer to where I will be able to purchase my KX3, and I was wondering if there are any options that are easier to install during the build than adding them later... I'm planning on ATU and the NiMH charger. Everything else I'm going to order goes on the outside of the radio. Just kind of curious Joshua Gould K8WXA __ 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] Antenna choices
I've been having fun and some success with a 5 band hex beam. It's only at 20 ft and 50 ft would be much better. Its SWR is less than 1.5:1 on each band 20-10m. There is an option to add 6 m for little or no cost. It's only 2 elements so it doesn't have a lot of fwd gain (9-10 dBi) but good f/b of 20 dB. Not too expensive if you HB it. Brian, K0DTJ On May 26, 2014, at 16:29, Bill Coleman aa...@arrl.net wrote: On May 25, 2014, at 8:31 PM, Joshua Gould jg.k8...@gmail.com wrote: I am going to be acquiring a 56 foot Rohn BX tower. I already have a G5RV that I am planning on putting up (still not sure where I'm going to attach the other end of it to, One end will go on the tower.) I'm going to put up a 2m/440 vertical at some point up near the top of the tower. I keep throwing around an HF vertical or a beam. The verticals seem to cover more bands, but the beams are directional. (Would also need a rotor,.. Can a multi band yagi be tuned to a different band, or will it only work on the bands that it's designed for? I would not use a multi-band yagi on a band it was not designed for. That said, I would recommend you put a tribander yagi on the top of that tower. You can then hang dipoles for the WARC bands, as well as for 40/80m. You also might consider shunt-feeding the tower for 160/80m. I have an article on my blog on how I support 9 bands from one 50 foot tower: - A3S/A743 - supports 10/15/20m, and the dipole attachment for 40m. (http://boringhamradiopart.blogspot.com/2009/07/cushcraft-a3sa743.html) - homebrew trap dipole supports 12/17/30m. (http://boringhamradiopart.blogspot.com/2010/02/warc-trap-dipole.html) - Shunt feed with matching network supports 80/160m. (http://boringhamradiopart.blogspot.com/2009/04/shunt-feeding-short-tower-on-80-and.html) And here’s an article where I talk about the experience of using a tribander: http://boringhamradiopart.blogspot.com/2009/03/tribander-experience.html Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com Quote: Boot, you transistorized tormentor! Boot! -- Archibald Asparagus, VeggieTales Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ 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 huntin...@coastside.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-500 fan noise
On 6/1/2014 5:59 PM, AG0N-3055 wrote: Sounds normal for mine. Yes, quite normal. The KPA500 is very well protected, while still allowing as much power output as possible. I do lots of RTTY contesting on HF, and JT65 on several bands, including 6M. Depending on the ambient temperature in the shack, the fan kicks into high gear after about 40 seconds, but the power remains at maximum. I ran a beta KPA500 for a RTTY contest weekend, with instructions to run it with all the lights lit. I did, with no issues, and that's how I've always run it. BTW -- with many classes of power amps, greatest dissipation is not at full power, but at some lower power level, and it is my understanding this is true with the KPA500. So backing off TX power probably isn't necessary, and if it is, the KPA500 will do it on its own. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K2 filters?
Gavin, As has been explained by a couple others, the K2 filters (other than the OP1 filter on the KSB2 option board) are entirely user configurable - you can set the filter width and the filter center frequency as you desire. You can find information for doing that at my website www.w3fpr.com in part 3 of the article on K2 Dial Calibration. If you need Spectrogram, the download link to my local files can be found near the bottom of the opening page. Additional information on aligning the K2 filters can be found on Tom Hammond N0SS's (SK) website. The content of his website is being preserved by the Mid-Missouri Radio Club as part of their website - see http://www.mmccs.com/mmarc/n0ss/. 73, Don W3FPR On 6/1/2014 9:17 PM, gavin barbara williams wrote: As far I know I cannot see any filter options for the K2, am I correct? Currently looking at a K2 sn low 4XXX. It is advertised as It has 1.7kHz, 700Hz, 400Hz and 100Hz filters fitted . Is this possible. __ 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 options that are easier to install at build
Joshua, The options are easy to add either way. 73, Don W3FPR On 6/1/2014 9:57 PM, Joshua Gould wrote: I'm getting closer to where I will be able to purchase my KX3, and I was wondering if there are any options that are easier to install during the build than adding them later... I'm planning on ATU and the NiMH charger. Everything else I'm going to order goes on the outside of the 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 options that are easier to install at build
The filter option is a bit of a pain to add later due to the calibration procedure -- done by Elecraft even for kits if the filter is purchased with the basic KX3. Phil W7OX On 6/1/14, 8:17 PM, Don Wilhelm wrote: Joshua, The options are easy to add either way. 73, Don W3FPR On 6/1/2014 9:57 PM, Joshua Gould wrote: I'm getting closer to where I will be able to purchase my KX3, and I was wondering if there are any options that are easier to install during the build than adding them later... I'm planning on ATU and the NiMH charger. Everything else I'm going to order goes on the outside of the 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] O.T. Learning Morse Code
One can probably find an electric typewriter, but that is not a Mill. A Mill is a manual typewriter that has no shift. It is not good for typing and all the ones that I have seen were manufactured in the forties. Mills are not very useful for anything except copying code. Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart On Saturday, May 31, 2014 11:02 PM, Walter Underwood wun...@wunderwood.org wrote: Should be able to find a typewriter in fine working condition here: http://www.losaltosbusinessmachines.com/ My all time favorite typewriter is an IBM Correcting Selectric II. An APL golfball would be icing on the cake. wunder K6WRU On May 31, 2014, at 8:26 PM, WILLIS COOKE via Elecraft elecraft@mailman.qth.net wrote: I had to learn to copy at least three times. First, I memorized the code from the Boy Scout Handbook with dots and dashes. That was good for about 5 wpm. Then I learned to copy with block printing and that worked well to almost 20, but I could not get there. I had to learn to copy with cursive to get the extra back when you had to get a minute perfect copy for the examiner. I am still working on head copy but for some reason I have to hold a pencil and make marks that even I can't read most of the words to copy. Finding a mill that works well is a challenge these days. The ships that I have worked on have several mills sitting around frozen up, but none that work well. I don't think there are any typewriter repairmen left around to rework a mill. Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart On Saturday, May 31, 2014 7:25 PM, Fred Jensen k6...@foothill.net wrote: You are right Chuck, this is true, many will verify it. If I'm writing it down, the translation path is hear soundknow letter/number [or maybe word]recall shape of written character[s]write character[s]. With a mill, it's hear soundsmove fingers. I think it's that recall ... step that breaks the continuous copying process, it requires thinking, and if you learned on a mill, or have used a mill a lot, you're not used to doing any thinking. When I was at the coastal marine station so many years ago, my mind would wander while in traffic with a ship ... OK, I was 16, 16-yr old minds wander a lot. :-) But, it's just evidence that I wasn't thinking about what I was copying Copying on a mill, and to a large extent on a keyboard, I have no idea what I copied when I'm done, without reading it, it's muscle-memory and it did not go through my alleged brain. I'm not a musician, but my brother is [however, he makes his living writing software :-)] and he tells me playing the piano is basically muscle memory ... see notesmove fingers. It goes a bit beyond that however, there is a distinct difference between a mill and a computer keyboard for most. I can type faster [from hard copy text] on a desktop keyboard than I can on a mill. However, I can copy Morse [groups or text] faster on a mill than than that same keyboard. On a mill, I'm good for 30-35 WPM. On a standard sized desktop keyboard, 30 is tops and will have typos. On a laptop or other smaller keyboard, I sort of top out at 20-25 ... or less depending on the keyboard. I really don't *know* why, but I suspect that the longer key travel forces a rhythm that syncs with the Morse. The worst of all keyboards to touch type on are the flat-panel ones with no key travel. Just in case there are any out there looking for a CW Elmer, the CWOps group runs an international CW Academy. They use a well proved methodology, a free video-conferencing program with competent instructors, flexible schedules, and there's lots of on-air support from the members on the 3 CWT's each Wednesday. cwops.org There is usually a waiting list but it goes fast. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 5/31/2014 4:08 PM, Chuck Smallhouse wrote: I was tasked teaching much older(17) and lower ranked Radiomen, Morse code, via using a typewriter for copying. It was a learning experience for me, as I found this method much easier to learn, than by writing down the words and messages by hand. It seemed as if the code characters went directly from the ears to the typing fingers, totally bypassing any pondering in the brain. __ 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 wrco...@yahoo.com __ Elecraft mailing list Home:
Re: [Elecraft] KXPA100 Hi PA current ?
Hi Don, Thank you for the information and input about OCF antennas. I did a measurement of the supply voltage to the KXPA100. here is what I Measure with my Fluke 77 meter: The voltage measurement was taken at the supply power plug from the amp that plugs into the KX3 to power it. I have the internal batteries installed in the KX3 so doing the test was easy. I am using an Alinco DM-330 MVP power supply with a very short cable run the the KXPA100. The supply voltage reads 15.1 volts without the amp or KX3 transmitting. With the power setting on the KX3 set to max 110 watts. When the KX3 is keyed and the amp is active I measure 14.6 volts. The voltage drop is not that big in my opinion. I have a 10 foot ground round sunk all the way down with a heavy braided cable less than a 6 foot run to a 1/4 inch thick brass 8x8 inch plate. I then have braided jumpers going to the KX3 and KXPA100 less than 8 inches from the brass plate to my equipment. What else should I do or look for? I have to say my Carolina Windom performs extremely well! Thank you, Glenn WA7SPY Glenn Maclean __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Is this normal? KX3 ACC2 IO Lockup
When going through the menus, if I try scrolling through the options for ACC2 IO and I get to LO=PTT, the radio freezes. I have to remove a battery to get it to shut down. Nothing is plugged in to the ACC2 jack. I'm on MCU 1.87 and DSP 1.28 -Dave __ 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
