Re: [Elecraft] [K3] K3 - KDVR3 Question - Importing Sound Files
No this has been asked and its not really all that feasible that they can convert it and pipe it out in a computer format. ~BTH On Wed, 2009-11-18 at 22:57 -0800, vk4cmv wrote: Is it possible to bring recordings back from the K3 KDVR3 to a PC - other than by playing recordings and grabbing them that way through the PC's sound card? rgds, Julian VK4CMV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] My Proposed K3 Configuration so far...(usb adaptors)
From personal experience some 'cheap' usb-serial adaptors can produce significant levels of rf hash. I don't need 'em at the moment but if I did I'd probably go with the Elecraft one on the assumption it's been checked for noise. No point spending mega bucks on a top rate receiver and then degrading it with a cheap little adaptor. 73, Stewart Rolfe, GW0ETF (K3 #145) PS Can Wayne or Eric confirm that their usb adaptor *is* rf-quiet?? Bob Maser wrote: It is an adapter that can be found at electronics stores for anywhere from $25 to $40. Bob #3605 - Original Message - From: Phil Hystad k7...@comcast.net To: Lyle Johnson k...@wavecable.com Cc: Elecraft@mailman.qth.net Sent: Wednesday, November 18, 2009 3:45 PM Subject: Re: [Elecraft] My Proposed K3 Configuration so far... Is the KUSB just an ordinary adapter or does it provide a USB port built into the K3 back panel. And, if not built in, why not. I don't even have a serial port on my computers anymore (3 Apple macs and one windows laptop). phil On Nov 18, 2009, at 2:42 PM, Lyle Johnson wrote: I might be confused between a thing called the KIO3 and the KUSB. I can't find the KIO3 on the list of options but I do read about it in the user's manual. Is this no longer an option? Or, am I staring right at it on the web page but still blind and can't see. The KIO3 is part of the K3, not an option. The KUSB is a USB - RS232 adapter. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://n2.nabble.com/My-Proposed-K3-Configuration-so-far-tp4028797p4030625.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ On 18, Nov 2009, at 20:41, Wayne Burdick wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: elecraft_k3-dig...@yahoogroups.com elecraft_k3-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: elecraft_k3-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
FWIW... In rev-3.57 my K3 was typically locking 5-6 Hz above the zero beat carrier. That seems to have been cut in half with this revision, now locking 2-3 Hz above carrier. All India Radio carrier at 9869.986 KHz locks in AM Sync at .988-.989. (All India Radio transmitters seem to be consistently about 15 Hz low.) When I was a kid I dreamed of having a SW receiver that was accurate to within 5 KHz, heheh Didn't have any problems with loading the F/W. 73, Drew AF2Z Some SWBC stations can be pretty far off freq. All India Radio is consistently about 10 or 12 Hz low. On Thu, 19 Nov 2009 03:46:31 -0600, you wrote: Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] K2 VCO Voltage Instability
Guys - This topic was KPA100 Behaving Badly, but at Tom's N0SS suggestion, I tried the KPA100 on my working K2 and all was well. I also tried the control board of the sick K2 in my working K2 and all was well. So, it's not the KPA100 Behaving Badly, it's the K2. I'm back to the original problem - watery CW signals on receive, frequency shifts on receive and loss of all signals. I suspect the VCO is not getting the correct consistent voltage. I attempted to do the VCO Alignment in Alignment and Test - Part 2. I tuned to 4mhz and easily adjusted L30 for 6.0v as shown on R30 on the RF board. But, as I tuned toward 3.5mhz, the voltage decreased steadily until about 3.8mhz where it dropped to zero. Tuning back up to 4mhz, it remained at 0. Turning the radio on and off while tuned to 4mhz restored the voltage to 6v, but the same thing happened when I tried to tune below 3.8mhz. Turning the radio on while it is set for 3.5mhz give a reading at R30 of 6.8v. Tuning higher increases the reading to 8v where it stays at all higher frequencies. Tuning back down, the voltage goes to 0v around 3.8mhz and remains there at all frequencies. The voltages on these pins of U6 (RF Board) remain constant - pin 5 - 4v, pin 6 - 4v, pin 8 - 8v. Would a bad U6 explain these problems? It there somewhere else I should be checking? Any and all help greatly appreciated. 73 de K1ESE John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] K2 VCO Voltage Instability
John, That R30 voltage is changing too rapidly on 80 meters I doubt U6 is the problem, but more data is required to say yes or no. The voltage at pin 5 should be a steady 4 volts coming from the thermistor board. As long as this is steady, there is no problem with it. The voltage at pin 6 will vary depending on the voltage coming out of U4 pin 13. That variation will result in a corresponding (but larger) variation at pin 7 (which is also the left end of R30). Since you do get some variation at R30, I would say U6 is likely working properly. Your problem is the VCO locking - this is a PLL loop involving the VFO area and its feedback loop to U4 - the output of U4 then drives U6 which in turn drives the voltage to the varactors in the VFO to alter the frequency. At the same time, there is data (from the EEPROM) being sent to the PLL chip (U4) to tell it what divisor to use in syncing with the incoming PLL Reference frequency - so any of these things could cause incorrect operation. First things first - set to 4.000 MHz and check to see that you do have voltage at R30 - Adjust L30 until it is near 6 volts. Then use the internal counter probe and CAL FCTR to measure the frequency at TP1 (the VFO frequency) The frequency at TP1 should be close to 8.915 MHz. Move the frequency down while monitoring the voltage at R30 - when the voltage gets to 1.5 volts, note the displayed frequency and again measure the frequency at TP1 - subtract 4.915 from the measured frequency and compare that to the K2 displayed frequency - there should be a close match (forget anything less than 1 kHz, it is not significant at this time). If there is a match, the PLL and VCO are likely working properly. Next step is to assume that there is bad data in the EEPROM - try doing a CAL PLL to see if that sets things better. If not, then write down the menu items including the filter settings and do a Master Reset (hold the 4, 5, and 6 buttons while turning on power) - then after the Info 201 goes away repeat the CAL PLL. If anything in the steps above seem totally out of whack, stop and let me know what you are finding (it may be that we are looking in the wrong places). 73, Don W3FPR John Huffman wrote: Guys - This topic was KPA100 Behaving Badly, but at Tom's N0SS suggestion, I tried the KPA100 on my working K2 and all was well. I also tried the control board of the sick K2 in my working K2 and all was well. So, it's not the KPA100 Behaving Badly, it's the K2. I'm back to the original problem - watery CW signals on receive, frequency shifts on receive and loss of all signals. I suspect the VCO is not getting the correct consistent voltage. I attempted to do the VCO Alignment in Alignment and Test - Part 2. I tuned to 4mhz and easily adjusted L30 for 6.0v as shown on R30 on the RF board. But, as I tuned toward 3.5mhz, the voltage decreased steadily until about 3.8mhz where it dropped to zero. Tuning back up to 4mhz, it remained at 0. Turning the radio on and off while tuned to 4mhz restored the voltage to 6v, but the same thing happened when I tried to tune below 3.8mhz. Turning the radio on while it is set for 3.5mhz give a reading at R30 of 6.8v. Tuning higher increases the reading to 8v where it stays at all higher frequencies. Tuning back down, the voltage goes to 0v around 3.8mhz and remains there at all frequencies. The voltages on these pins of U6 (RF Board) remain constant - pin 5 - 4v, pin 6 - 4v, pin 8 - 8v. Would a bad U6 explain these problems? It there somewhere else I should be checking? Any and all help greatly appreciated. 73 de K1ESE John No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2513 - Release Date: 11/19/09 02:51:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
DaleJ wrote: After this load I thought I had a problem. I had my first ever problem with this update too. K3 Utility reported several retries then gave up. K3 frozen with upload message on display, had to switch power supply off. Scary, isn't it? Second attempt went with no problems. I think the cause was I was doing some web browsing during the upload. Normally I just let the update utility do its thing and don't touch the 'puter till it's finished. I guess if something else takes a bit too much CPU a buffer underrun may occur and mess up the upload. I'll know better in future. You'd think Microsoft would have learned how to make a multi-tasking operating system by now ... - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-Beta-Firmware-Rev-3-57-Synchronous-AM-Detection-AM-S-misc-improvements-tp3983997p4032264.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements
In 3.59 -- Sync AM listening to music on HF BC, the sync search usually kicks in and resettles at the bottom of a carrier fadeout, which will almost always involve a near 180 degree phase shift at the bottom. The transition is MUCH better than 3.58 for listening to music, the one or two cycle woop neatly blending into the other spectral changes at the bottom of the fade, MINUS the no-carrier distortion. I found myself enjoying a story reading on 7440 (?, didn't write it down) where using the shift to listen on the upper side got rid of some grindy stuff on low side, and the considerable fades were handled. -Nice- :) On the firmware loads... Standard advice if any firmware load issues, on PC shut down all programs except the utility, do nothing else when loading firmware. Do NOT try to load firmware with the download as a virtual directory. If the utility starts up funny, takes too long, or comes up on 9k serial speed, kill it and restart it. When the utility comes up quick and clean, start the firmware, get up and take a break. Leave PC alone, don't touch, no browsing, no mouse moves. When it's done, kill the utility, power off the K3 for at least 15 seconds. THEN power on and see how it's working. Various occasional wierdness has ceased since rigidly sticking to this policy. Windows has always been hostile to timing sensitive hardware drivers and utilities. 73, Guy. On Wed, Nov 18, 2009 at 9:41 PM, Wayne Burdick n...@elecraft.com wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements
The K3 Utility reads each .hex file into RAM (and validates it there) before starting to send it to the K3. If the file is unreadable because of a network glitch, we want to discover that before beginning a firmware load. This was fixed almost a year ago. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger K2AV Sent: Thursday, November 19, 2009 8:41 AM To: Wayne Burdick Cc: Elecraft Reflector; elecraft...@yahoogroups.com; elecr...@yahoogroups.com Subject: Re: [Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements In 3.59 -- Sync AM listening to music on HF BC, the sync search usually kicks in and resettles at the bottom of a carrier fadeout, which will almost always involve a near 180 degree phase shift at the bottom. The transition is MUCH better than 3.58 for listening to music, the one or two cycle woop neatly blending into the other spectral changes at the bottom of the fade, MINUS the no-carrier distortion. I found myself enjoying a story reading on 7440 (?, didn't write it down) where using the shift to listen on the upper side got rid of some grindy stuff on low side, and the considerable fades were handled. -Nice- :) On the firmware loads... Standard advice if any firmware load issues, on PC shut down all programs except the utility, do nothing else when loading firmware. Do NOT try to load firmware with the download as a virtual directory. If the utility starts up funny, takes too long, or comes up on 9k serial speed, kill it and restart it. When the utility comes up quick and clean, start the firmware, get up and take a break. Leave PC alone, don't touch, no browsing, no mouse moves. When it's done, kill the utility, power off the K3 for at least 15 seconds. THEN power on and see how it's working. Various occasional wierdness has ceased since rigidly sticking to this policy. Windows has always been hostile to timing sensitive hardware drivers and utilities. 73, Guy. On Wed, Nov 18, 2009 at 9:41 PM, Wayne Burdick n...@elecraft.com wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it's useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: FS Pristine, low mileage Tek 2465b 400 Mhz 4 ch scope
I have a late model (B054347) Tektronix 2465b 400 Mhz scope. It has had very little use, with total hours of 4632 and on/off cycles of 511. This is very low for a 2465b. I have seen units with over 20,000 hours. It is in excellent condition cosmetically, the rubber feet on the back of the case look like they just came out of the injection molder. Everything works perfectly and the display is crisp and strong. Even at the fastest sweeps, it produces a nice, strong trace. It was last calibrated in March 20, 2007 and compares accurately with my DSA602a. It comes with the probe pouch on top, a hard copy users manual in good condition, and a crt shade. I have posted photographs at http://www.flickr.com/photos/hwashcraft/sets/72157622836393306/. These show a 5MHz 1 v pp square wave, usage, and the screen that shows that all internal self-tests pass. The 2465b is considered by many to be the best desktop/portable analog scope ever made. Late model 2465b s have one issue. Tektronix moved to using surface mounted components on the A5 board near the end of 2465b production (basically a very good idea), but the early smd electrolytic capacitors had a tendency to leak. The electrolyte could damage traces and the pc board, itself. I checked the A5 board on this unit and found that one of the caps was starting to leak (but before any damage to the traces and the pc board) and I have cleaned the board and replaced the electrolytic caps with new panasonic fk series units. So, you don't have to do this or worry about it. If you are looking for a 2465b, this is about as nice a unit as you will find. Price is $795 plus shipping in the contintental us of $40 (pick up in Alameda, CA is ok, too). I also have 2 p6137 probes with ground clips. These are also very lightly used and if you purchase the scope, can be purchased for an additonal $65/each. They are not for sale without the oscilloscope. 73, Howard W1WF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] W2
Assembling the W2 took less than an hour (coffee break included). Everything fits together nicely (as usual with Elecraft). And loading Rev 0.90 today went smoothly. The accuracy is quite satisfactory as checked against my Bird 43 (which, admittedly, has not been calibrated for some time but I'm quite happy with +/-5% which nobody will notice on his S-meter anyway!). It appears that the PK HOLD function, though very convenient and reliable in manual mode, behaves erratically in AUTO mode, always going back to 1 or 2... Further, the SWR meter will never show 1.0, the 1.1 LED stays on, whatever I do and even though the K3's meter shows 1:1.0 – even on a dummy load (no, I'm not an SWR addict! But I just wonder why…) I guess these minor issues will be dealt with in some future release... Thanks, Elecraft, for another very nice product! Richard – HB9ANM - Richard - HB9ANM -- View this message in context: http://n2.nabble.com/W2-tp4033779p4033779.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] W2
On Thu, 19 Nov 2009 11:09:21 -0800 (PST), Richard Squire - HB9ANM hb9...@bluewin.ch wrote: [snip] Further, the SWR meter will never show 1.0, the 1.1 LED stays on, whatever I do and even though the K3's meter shows 1:1.0 even on a dummy load (no, I'm not an SWR addict! But I just wonder why ) [snip] I have noticed the same thing here regarding never reading 1.0:1. Not a big deal, but perhaps it could be fixed at some time. 73, Tom, N5GE n...@n5ge.com K3 #806 with SUB RX, K3 #1055, PR6, XV144, XV432, KRC2, W1, 2 W2's and other small kits. 1 K144XV on order http://www.n5ge.com http://www.swotrc.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] W2
On Nov 19, 2009, at 11:09 AM, Richard Squire - HB9ANM wrote: It appears that the PK HOLD function, though very convenient and reliable in manual mode, behaves erratically in AUTO mode, always going back to 1 or 2... Further, the SWR meter will never show 1.0, the 1.1 LED stays on, whatever I do... We'll look into both of these issues right away, Richard. Thanks for the report. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 DVR message play termination via the RX remote-control command
Those of you who control the K3's digital voice recorder (KDVR3) from a PC application can now terminate message play/repeat more easily. The K3's RX remote-control command will now cleanly cancel transmit or message play in all modes. If you'd like to try this, please email me directly. I'll send you K3 field-test firmware revision 3.60. Other DVR-related changes are still in the works, but I know many of you had requested this one. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Updated W2 Serial Interface Commands Rev B
We have just updated the W2 Serial Interface Commands document to Rev B. Check out... http://www.elecraft.com/software/elecraft_software_page.htm In the W2 Software section you will find a document of the Serial Commands presently available. It is also available in our Manuals and Downloads section, as well. The W2 Serial Interface Commands is a 71k pdf document you may download for free! Used in conjunction with our Elecraft W2 Utility (also available as a download on this webpage), you can calibrate your Sensors to match another watt meter (like the K3's internal one), set the Range to Auto or a fixed level, set LED decay rates, and much more. This document is updated as the firmware develops, so keep checking in for the latest updates! Brian, W6FVI W2 Firmware Engineer Elecraft, Inc. + W2 firmware revision 0.90 is now available. See the link above for more details. Please send any questions to k3supp...@elecraft.com. 73, Brian, W6FVI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: FS: BB105 Voltage Variable Capacitance Diodes
I've acquired around 1200 of these and thought I'd offer them up for the experimenters to work with. BB105 voltage variable capacitance diodes - max reverse voltage 30 volts and linear capacitance range is from 1 to 10 volts. 1V = approx 15.5 PF and 10V = approx 4.5 PF. These have bendable tabs that can be either thru-hole or surface mounted. They were designed to be precision tuning diodes for VHF and UHF TV Tuners, hence the linear range. I'll include a printed data sheet with each order for 10 or more. 10 for $2, 30 for $5, shipping included. Contact me off list please for ordering and payment info. Thanks - Jim Sheldon W0EB w...@cox.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
[Elecraft] WSPR 2.0 released
Don't know if this is old news by now, but K1JT has just released WSPR 2.0. Some very neat features including CAT control for K3s and other rigs, should help keep me from reporting wrong frequencies ;-) http://physics.princeton.edu/pulsar/K1JT/wspr.html Like all endeavors RTFM applies here, very good pdf file instructions. 73, Doug W7RDP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] k3 box
Eric Swartz - WA6HHQ, Elecraft wrote: Hi Dick, Not at this time. We are only producing the one with the holes ;-) . 73, Eric WA6HHQ But Elecraft are selling the corner pieces and the paint so it ought to be possible for someone to make their own case. Perhaps Elecraft could make available the bail stand and feet and advise on where to buy aluminium plate of the correct gauge. Mike -- View this message in context: http://n2.nabble.com/k3-box-tp4028826p4034518.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 CW Decode Question
Does the K3 CW Decode display the estimated code speed in wpm? If not, it might be a cute added feature. I have seen this on some contest software and I thought it was interesting -- always wondered how fast I can copy. phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] VCO Voltage Instability
This is a long shot, but I had this sort of problem for quite a while and tried all sorts of things to fix my watery CW. If your radio is equipped with the KDSP2, check the settings. I must have been playing with the K2's DSP settings just prior to the arrival of my K3, so by the time I got round to using my K2 again, I'd forgotten all about the tinkering. I awarded myself the dummy of the week prize HI! 73 DaveL G3TJP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 CW Decode Question
Set the TEXT DEC switch parameter to WPM CHK. The usual text-decode display will then show XXw. at the left end, where XX is the estimated code speed. Works best if the signal isn't too weak. 73, Wayne N6KR On Nov 19, 2009, at 2:44 PM, Phil Hystad wrote: Does the K3 CW Decode display the estimated code speed in wpm? If not, it might be a cute added feature. I have seen this on some contest software and I thought it was interesting -- always wondered how fast I can copy. phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] VCO Voltage Instability
Dave, On the bottom of the RF Board, check the small RF Choke RFC15 for continuity - check with the ohmmeter, voltage checks at both ends will be 5 volts even if it is open. If it is open, you can use a temporary jumper across it, but get the proper choke and install it when available. 73, Don W3FPR David Lankshear wrote: This is a long shot, but I had this sort of problem for quite a while and tried all sorts of things to fix my watery CW. If your radio is equipped with the KDSP2, check the settings. I must have been playing with the K2's DSP settings just prior to the arrival of my K3, so by the time I got round to using my K2 again, I'd forgotten all about the tinkering. I awarded myself the dummy of the week prize HI! 73 DaveL G3TJP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 S Meter
KK7P wrote: If you have a sig gen, and if you haven't already done so, you should run the RF GAIN calibration procedure in K3 Utility *before* performing S Meter calibration. Details for this are in K3 Utility Help. Lyle - is there anything to be gained by running the RF Calibration on 3 bands (like with the XG2 Signal Generator)? rgds, Julian VK4CMV -- View this message in context: http://n2.nabble.com/Re-K3-S-Meter-tp4019422p4035014.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 S Meter
Lyle - is there anything to be gained by running the RF Calibration on 3 bands (like with the XG2 Signal Generator)? No. The DSP will use the last set of readings only. I use 20 meters, but it isn't critical. I probably woudln't use 6 meters, since the attenuator and/or preamp transfer characteristic probably is slightly different there. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Macro to turn an external amplifier on and off
I wanted to create a K3 macro to turn an external amplifier on and off. It turns out that with firmware 3.60, which is now in field test and will shortly be in beta, it's possible. The technique probably has other applications, like controlling filters or preamps, etc. A new MP command allows you to set the DIGOUT1 control line (pin 11 of the K3 accessory connector) to go to ground. This line is per-band and per antenna. This line can sink only 15 ma, so I used a simple PNP transistor switch to operate a relay which enables my amplifier. My AMP IN macro sets the power to 65 watts and activates (grounds) DIGOUT1 when its associated button is pushed. There's a companion AMP OUT macro which increases power to 100 watts and ungrounds DIGOUT1. Since DIGOUT1 is per-band, it's necessary to set CONFIG:PWR SET to PER BAND also. Then you can set the amplifier to be on for 20 meters, say, but off for 40. Changing bands will automatically turn the amp on or off and set the proper power level. Here are the macros: AMP IN: MN019;MP001;MN255;PC065; AMP OUT: MN019;MP000;MN255;PC110; The MN019 command selects the DIGOUT1 menu option, the MP command turns the line on or off on the band that you are on, and the PC command sets the power level. My SB-1000 likes about 65 watts, so that's what I select when the amp is on. Wayne has made the MP command work for DIGOUT1 in 3.60, so you'll need at least that version. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
I had the same loud pop and crackle with s-meter pegging out when I turned on power to the K3 today. It was previously set on Radio NZ freq and AM sync was enabled when I turned it off this morning before leaving on a road trip. I re-loaded 3.59 late this afternoon and now all seems to be ok. I tried turning off the K3, leaving it on AM with sync enabled and it did not pop and crack plus the S-meter did not peg out. I must have had a faulty upload the first time. I have to admit while uploading the firmware I was doing other things on the computer so maybe it was due to my fiddling. I'll check it out again early in the morning, but everything seems to be ok now. In fact it appears the sync is locking faster and more steady now. Keeping fingers crossed. Dale, K9VUJ On 19, Nov 2009, at 3:46, dalej wrote: Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ On 18, Nov 2009, at 20:41, Wayne Burdick wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: elecraft_k3-dig...@yahoogroups.com elecraft_k3-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: elecraft_k3-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ERR BP2
Hi Fred, Check CONFIG:KBPF3 - it should be not inSt if you don't have the KBPF3. I changed mine to rF nor, and get the same error on power-on... ~Iain / N6ML On Thu, Nov 19, 2009 at 12:50 AM, Fred Jensen k6...@foothill.net wrote: My K3 suddenly began showing ERR BP2 in the VFO B window. Everything works fine just like it always has and the error code goes away as soon as I do anything with the radio. The manual says it has something to do with BPF 2, which I don't think I have. K3/100 NB ATU DVR [just put that in, works great] FW 3.57 it happened with prior version too [3.30] I have the two stock roofing filters. It's never done this before. I'm not even sure I have a problem, I just don't like to see things on the display that begin with ERR 73, Fred K6DGW Auburn CA USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements
My take on this would be that although the PC copy of the file is fine, that Winders is glitching the send from the PC to the K3 by not paying rapt attention to the one and only timing dependent app running at the time, and somehow dropping stuff. The procedure previously outlined has kept firmware loads pristine. On Thu, Nov 19, 2009 at 12:05 PM, Dick Dievendorff die...@comcast.net wrote: The K3 Utility reads each .hex file into RAM (and validates it there) before starting to send it to the K3. If the file is unreadable because of a network glitch, we want to discover that before beginning a firmware load. This was fixed almost a year ago. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger K2AV Sent: Thursday, November 19, 2009 8:41 AM To: Wayne Burdick Cc: Elecraft Reflector; elecraft...@yahoogroups.com; elecr...@yahoogroups.com Subject: Re: [Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements In 3.59 -- Sync AM listening to music on HF BC, the sync search usually kicks in and resettles at the bottom of a carrier fadeout, which will almost always involve a near 180 degree phase shift at the bottom. The transition is MUCH better than 3.58 for listening to music, the one or two cycle woop neatly blending into the other spectral changes at the bottom of the fade, MINUS the no-carrier distortion. I found myself enjoying a story reading on 7440 (?, didn't write it down) where using the shift to listen on the upper side got rid of some grindy stuff on low side, and the considerable fades were handled. -Nice- :) On the firmware loads... Standard advice if any firmware load issues, on PC shut down all programs except the utility, do nothing else when loading firmware. Do NOT try to load firmware with the download as a virtual directory. If the utility starts up funny, takes too long, or comes up on 9k serial speed, kill it and restart it. When the utility comes up quick and clean, start the firmware, get up and take a break. Leave PC alone, don't touch, no browsing, no mouse moves. When it's done, kill the utility, power off the K3 for at least 15 seconds. THEN power on and see how it's working. Various occasional wierdness has ceased since rigidly sticking to this policy. Windows has always been hostile to timing sensitive hardware drivers and utilities. 73, Guy. On Wed, Nov 18, 2009 at 9:41 PM, Wayne Burdick n...@elecraft.com wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it's useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
During firmware uploads, I don't even touch the mouse! May be safer to just leave the room. Steve N4LQ n...@carolina.rr.com - Original Message - From: dalej dal...@mac.com To: elecraft...@yahoogroups.com Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, November 19, 2009 7:13 PM Subject: Re: [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements I had the same loud pop and crackle with s-meter pegging out when I turned on power to the K3 today. It was previously set on Radio NZ freq and AM sync was enabled when I turned it off this morning before leaving on a road trip. I re-loaded 3.59 late this afternoon and now all seems to be ok. I tried turning off the K3, leaving it on AM with sync enabled and it did not pop and crack plus the S-meter did not peg out. I must have had a faulty upload the first time. I have to admit while uploading the firmware I was doing other things on the computer so maybe it was due to my fiddling. I'll check it out again early in the morning, but everything seems to be ok now. In fact it appears the sync is locking faster and more steady now. Keeping fingers crossed. Dale, K9VUJ On 19, Nov 2009, at 3:46, dalej wrote: Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ On 18, Nov 2009, at 20:41, Wayne Burdick wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: elecraft_k3-dig...@yahoogroups.com elecraft_k3-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: elecraft_k3-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2514 - Release Date: 11/19/09 14:42:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
Or just install Linux ;) On Thu, 2009-11-19 at 20:24 -0500, Steve Ellington wrote: During firmware uploads, I don't even touch the mouse! May be safer to just leave the room. Steve N4LQ n...@carolina.rr.com - Original Message - From: dalej dal...@mac.com To: elecraft...@yahoogroups.com Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, November 19, 2009 7:13 PM Subject: Re: [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements I had the same loud pop and crackle with s-meter pegging out when I turned on power to the K3 today. It was previously set on Radio NZ freq and AM sync was enabled when I turned it off this morning before leaving on a road trip. I re-loaded 3.59 late this afternoon and now all seems to be ok. I tried turning off the K3, leaving it on AM with sync enabled and it did not pop and crack plus the S-meter did not peg out. I must have had a faulty upload the first time. I have to admit while uploading the firmware I was doing other things on the computer so maybe it was due to my fiddling. I'll check it out again early in the morning, but everything seems to be ok now. In fact it appears the sync is locking faster and more steady now. Keeping fingers crossed. Dale, K9VUJ On 19, Nov 2009, at 3:46, dalej wrote: Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ On 18, Nov 2009, at 20:41, Wayne Burdick wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: elecraft_k3-dig...@yahoogroups.com elecraft_k3-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: elecraft_k3-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2514 - Release Date: 11/19/09 14:42:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home:
Re: [Elecraft] Elecraft P3
On Tue, 17 Nov 2009 10:20:47 + David Pratt da...@g4dmp.fsnet.co.uk wrote: In a recent message, Brett Howard br...@livecomputers.com wrote ... Is this still slated to be out by year end? Yes, but I don't think anyone said which year ;-) 73 -- David G4DMP Leeds, England, UK -- * Dave, A few weeks ago I called Elecraft and spoke to one of their nice ladies about the impending P3 and she guessed either by late DEC. 2009 or JAN. (sometime) 2010. But in their business that time frame can change in a HEART-BEAT right? PATIENCE is the keyword here! Jim/nn6ee S/N 2406 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft P3
That's right. PATIENCE is the keyword here! And don't touch the earmarked funds Give me more time to sell my FT1000MP!! de K2GN/Larry K3 - S/N 3278 - Original Message - From: JIM DAVIS nn...@astound.net To: elecraft@mailman.qth.net Sent: Wednesday, November 18, 2009 1:38 PM Subject: Re: [Elecraft] Elecraft P3 On Tue, 17 Nov 2009 10:20:47 + David Pratt da...@g4dmp.fsnet.co.uk wrote: In a recent message, Brett Howard br...@livecomputers.com wrote ... Is this still slated to be out by year end? Yes, but I don't think anyone said which year ;-) 73 -- David G4DMP Leeds, England, UK -- * Dave, A few weeks ago I called Elecraft and spoke to one of their nice ladies about the impending P3 and she guessed either by late DEC. 2009 or JAN. (sometime) 2010. But in their business that time frame can change in a HEART-BEAT right? PATIENCE is the keyword here! Jim/nn6ee S/N 2406 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
Yesterday night, I upgraded to 3.59, I don't know why, but upload speed is very very slow. Fortunately, firmware works just fine. All the best! David,ba4rf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] BL-2 Balun Heating
I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BL-2 Balun Heating
Gary, Balun heating is normally caused by attempting to feed a very high or very low impedance. Have you tried the 4:1 position? It may help, so do try it even though I would believe the antenna system feedpoint impedance where the balun is connected may be in the range of thousands of ohms rather than being in the 'hundreds of ohms' range that a balun can normally handle. Another thing to look for is a shorted or open feedline or feedline to antenna connection. You may want to try adding or subtracting some length to your antenna or to your feedline. If you had mentioned the band(s) where this situation occurs, we might have been able to offer more insight than my generic response provides. 73, Don W3FPR Gary Winkelman wrote: I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2513 - Release Date: 11/19/09 02:51:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BL-2 Balun Heating
Gary, What frequency of operation causes the balun overheating? Assuming the balun was constructed correctly, I would begin looking at trying to optimize line length if you favor that band of operation. For example, when using a 100 ft. dipole at 3.8 MHz and 1/4-wave in height above ground, the optimal feedline length of 450 ohm transmission line occurs at roughly 27, 143, or 260 feet from the antenna feed point. The 50-ohm RG-213 or 1:1 balun would couple at one of these distances. At these lengths, the 50-ohm line VSWR on your RG-213 would approach 1:1 while using any 50-ohm line length although the balanced open line VSWR is always determined by the line to antenna mismatch and not considering line loss, VSWR on that section of the line is constant irrespective of line length. When coupling the 50-ohm line (or balun) to the balanced line at a line-current maximum point, a tuner is generally no longer necessary. Worst case is that the tuner is used as a touch-up device to ensure full band coverage but at least the balun is no longer seeing wildly outrageous Z values since the change in line length functions as a variable RF transformer to achieve Z values reasonably close to 50-ohms at the balun. Paul, W9AC - Original Message - From: Gary Winkelman thewink...@gmail.com To: elecraft@mailman.qth.net Sent: Thursday, November 19, 2009 10:02 PM Subject: [Elecraft] BL-2 Balun Heating I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BL-2 Balun Heating
At 10:02 PM 11/19/2009 -0500, you wrote: I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM Hi Gary, You could place the balun (in the 1:1 configuration) on the other side of the tuner ... that is between the xcvr and the tuner. One side of the balun output would connect to the center pin of the input coax connector and the other side of the balun output connects to the tuner ground (frame). The tuner frame would of course be isolated from any ground especially the radio. The output of the tuner (no balun on the output) would connect directly to the 600 ohm feed line one side of the line connects to the center of the coax output center pin and the other side of the line connects to the tuner ground. The arrangement will work perfectly as a balanced tuning arrangement for the feed line and at the same time place the balun where it should be in the low impedance 1:1 circuit point ... with the result it will operate with efficiency and be cool as cucumber. At the moment it is not a 'balun' problem ... but a circuit problem. Jim, VE3CI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements
Leaving the room is good :) On Thu, Nov 19, 2009 at 8:24 PM, Steve Ellington n...@carolina.rr.com wrote: During firmware uploads, I don't even touch the mouse! May be safer to just leave the room. Steve N4LQ n...@carolina.rr.com - Original Message - From: dalej dal...@mac.com To: elecraft...@yahoogroups.com Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, November 19, 2009 7:13 PM Subject: Re: [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements I had the same loud pop and crackle with s-meter pegging out when I turned on power to the K3 today. It was previously set on Radio NZ freq and AM sync was enabled when I turned it off this morning before leaving on a road trip. I re-loaded 3.59 late this afternoon and now all seems to be ok. I tried turning off the K3, leaving it on AM with sync enabled and it did not pop and crack plus the S-meter did not peg out. I must have had a faulty upload the first time. I have to admit while uploading the firmware I was doing other things on the computer so maybe it was due to my fiddling. I'll check it out again early in the morning, but everything seems to be ok now. In fact it appears the sync is locking faster and more steady now. Keeping fingers crossed. Dale, K9VUJ On 19, Nov 2009, at 3:46, dalej wrote: Loaded 3.59 just now. Radio NZ on 9765, locks on with the K3 at 9764.984, it's dithering a couple of hz. 5-4-5-4-3 etc. After this load I thought I had a problem. It ended the download and returned the K3 to (what I thought) would be normal operation with a loud pop and crackle in the speaker. The S-meter was pegged out. I shut down the K3 for a few seconds and turned it back on with the same results. So I turned off the K3 and the power supply for a little longer then turned it back on, meter still pegged out, after several seconds or perhaps a minute the meter slowly came back down and I was receiving Radio NZ. Now everything seems to be ok. I have not tried transmitting yet. Dale, K9VUJ On 18, Nov 2009, at 20:41, Wayne Burdick wrote: K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now available. See release notes below. Rev. 3.59 does _not_ include any changes to DVR message playback and cancel. These are still in the works and will be made available in time for the phone contest this weekend. Please send any questions to k3supp...@elecraft.com. For instructions on how to load beta firmware, see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 3.59 / DSP 2.46, 11-18-2009 * FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed. * SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset contributed by the synchronous AM detector's PLL should be only a few Hz, max. * SWR INDICATOR TONES AFTER ATU TUNE: If switch tones are enabled, a second tone will be emitted following an ATU TUNE. This tone provides a rough idea of the SWR that the KAT3 was able to obtain: Lower pitch than 1st tone: Unknown SWR (ant. may be shorted) Same pitch as 1st tone: SWR = 2.0:1 Medium-high pitch: SWR = 3.0:1 High pitch: SWR 3.0:1. This feature was added primarily for our blind customers, but it’s useful whenever you tap ATU TUNE without looking at the final SWR reading. Remote Control Command Changes: * IC COMMAND (ICON status): Now returning correct message bank in voice modes (byte a, bit 3). Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: elecraft_k3-dig...@yahoogroups.com elecraft_k3-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: elecraft_k3-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2514 - Release Date: 11/19/09 14:42:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:
Re: [Elecraft] BL-2 Balun Heating
PS I believe the BL-2 is rated at 150 watts so running at 125W is already at the limit even when it is placed in the ideal point in the circuit ... (50 ohms resistive). Place it in a point in the circuit where the resistance varies up or down from the ideal of 50 ohms and then make it complex with added reactance and the unit could make like a toaster element. Of course if you operate QRP you will be just fine as long as you tolerate the RF power loss in the balun. Just imagine trying to make the circuit work at 1KW. Nothing like power to illustrate weakness. Jim, VE3CI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BL-2 Balun Heating
Yes, you are reaching the curie temperature of the core. At that point it's magnetic properties change dramatically. Of course that heat comes from RF that is becoming heat instead of being radiated by the antenna. A bigger core isn't the answer. You'd still be losing the same amount of power even if a much larger core felt cooler. Same with a heat sink. You didn't say what band you are using. Heating a balun is usually a sign of excessive current flowing -that is you are at a current loop. You can change that by changing the length of the feedline or just do away with the balun and connect one side of the open wire feeders to the center pin of the tuner output and the other to the case. That does not introduce anything like the degree of unbalance that some suggest. Indeed, the balance in the feedline is much more strongly affected by the antenna than the source. Ron AC7AC -Original Message- I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BL-2 Balun Heating
I have the AT1KM. It has a nice big 4:1 balun built in. Have you tried it to see if it gets hot too? That little BL2 may be rated for 250 watts but this is for a resistive load or 200 ohms. It's not going to be able to handle the extreme reactance of that antenna system. Even 25 watts would be asking a lot of it. I quote the BL2 manual: Power Rating 250 watts with a MATCHED LOAD. Your load is far from matched. 73 Steve N4LQ n...@carolina.rr.com - Original Message - From: Ron D'Eau Claire r...@cobi.biz To: n...@live.com; elecraft@mailman.qth.net Sent: Thursday, November 19, 2009 11:32 PM Subject: Re: [Elecraft] BL-2 Balun Heating Yes, you are reaching the curie temperature of the core. At that point it's magnetic properties change dramatically. Of course that heat comes from RF that is becoming heat instead of being radiated by the antenna. A bigger core isn't the answer. You'd still be losing the same amount of power even if a much larger core felt cooler. Same with a heat sink. You didn't say what band you are using. Heating a balun is usually a sign of excessive current flowing -that is you are at a current loop. You can change that by changing the length of the feedline or just do away with the balun and connect one side of the open wire feeders to the center pin of the tuner output and the other to the case. That does not introduce anything like the degree of unbalance that some suggest. Indeed, the balance in the feedline is much more strongly affected by the antenna than the source. Ron AC7AC -Original Message- I recently built a BL-2 Balun. It is connected between my Palstar AT1KM tuner and my doublet antenna. The antenna consists of a 100' wire up 25' and fed by 95' of 600 ohm open wire feeder. I'm using the 1:1 setting on the balun. There is a 4 section of RG-213 between the balun and a coax input of the tuner. I'm driving it with 125 watts from a TS-850. After no more than a few minutes of CW or RTTY transmission, the balun is too hot to touch, the SWR rises and the power goes down. The balun is obviously saturated. Does anyone have an idea how I can reduce the overheating? I've tried adding a heat sink but it doesn't make any difference. Tnx for reading! Gary N2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.707 / Virus Database: 270.14.73/2514 - Release Date: 11/19/09 14:42:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Audio Problem in Local Computer
I have my K3 hooked to a computer and all functions on it work fine through Ham Radio Deluxe and DM780 with an attached K1EL Keyer. I am then attempting to access this K3 and its computer over my in home network from another computer. This one they call the Local Computer. I have the Computer control of the radio plus the keying with the WnKey keyer. including the waterfall visual of the radio signal from within the DM780 program ... but NO Audio is heard from the speakers of this local computer. The soundcard works you can listen to any CD or off the web videos etc... but I can't get the audio from the K3 so I am missing something someplace? Can anyone tell me what I need to set up? John k9uwa John Goller, K9UWA Jean Goller, N9PXF Antique Radio Restorations k9...@arrl.net Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 DVR/PTT behavior improved -- looking for pre-contest volunteers to try it
We've greatly improved the way PTT works with the K3's digital voice recorder. The latest field-test release, MCU rev. 3.62, behaves as described below. If you'd like to test this for us (quickly, so we can do another beta release tomorrow), please email me directly. tnx Wayne N6KR * * * MCU 3.62, 11-19-2009 * PTT USE WITH DVR: If the KDVR3 menu entry ‘1’ tap option is set to AUTOPTT (the default), then PTT now behaves as follows: - If you start DVR message play first (by tapping M1-M4), then assert PTT during the message, DVR play will be cancelled. - If you assert PTT first, then play a DVR message, it will play normally, and will complete even if you let go of PTT. You can also cancel DVR message play by tapping REC, as usual, whether PTT is asserted or not. (Or cancel from a computer using the “RX;” command – see below.) Note: If the KDVR3 menu entry ‘1’ tap option is set to USE PTT, then PTT is required as a qualifier for DVR message play. In this case, releasing PTT in the middle of a DVR message will cancel it. Remote Control Command Changes: * DVR MSG PLAY CANCEL: You can now use the “RX” command to cleanly cancel DVR message play (as well as any other transmit or message-play function, in any mode). * CONFIG:DIGOUT1 MENU PARAMETER is now accessible with the “MP command. Values 000 and 001 only; get/set. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 ERR BP2
Same symptom for me w/ ERR BP4 when power on. It appears after downloading the 3.59 update yesterday ?? 73's Philippe A65BI K3#3616 Iain MacDonnell - N6ML a...@dseven.org 20-11-2009 4:20 Hi Fred, Check CONFIG:KBPF3 - it should be not inSt if you don't have the KBPF3. I changed mine to rF nor, and get the same error on power-on... ~Iain / N6ML On Thu, Nov 19, 2009 at 12:50 AM, Fred Jensen k6...@foothill.net wrote: My K3 suddenly began showing ERR BP2 in the VFO B window. Everything works fine just like it always has and the error code goes away as soon as I do anything with the radio. The manual says it has something to do with BPF 2, which I don't think I have. K3/100 NB ATU DVR [just put that in, works great] FW 3.57 it happened with prior version too [3.30] I have the two stock roofing filters. It's never done this before. I'm not even sure I have a problem, I just don't like to see things on the display that begin with ERR 73, Fred K6DGW Auburn CA USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
