[Elecraft] K3 firmware load
Good Morning, My K3 will not come out of the mcu ld state and will not load the latest firmware. I have removed the power ,loaded the latest utility, and tried several times to load firmware,but to no avail. I reconnected the power and it is still locked in mcu ld. Any suggestions ? Thanks Mark ---W1VJ K3 427 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 firmware load
Sure. There's a K3 Utility Help topic on this in the most recent K3 Utility version. See K3 Help, Troubleshooting, MCU Load Failure. Here's what the Help Text says (it's formatted better and there is a picture in the Help Text) MCU Boot Loader Troubleshooting When MCU firmware load is interrupted, or the power-on firmware checksum test fails, the K3 enters its permanent bootstrap loader. You can also force the K3 to enter its permanent bootstrap loader by turning the K3 on with a 10-second press of the power on switch. The MCU boot loader displays MCU LD on the K3 front panel LCD. LCD backlighting is normally off in this condition, so the screen appears dark in dim light. In order to load K3 firmware in this state, follow these steps in sequence. Turn off your K3 by switching off its power supply or removing the 12V power connector from the back panel. The K3's MCU can continue to run at very low voltage, and it's important that it start from a power-on reset. For this reason, it may be necessary to wait 30 seconds or so after removing power before power is turned on again. If you have a P3 panadaptor, remove its power plug so that the P3 does not power on, even for a moment, when you subsequently apply K3 power. Current P3 firmware sends commands during P3 initialization that disturb the K3 MCU boot loader. A future P3 firmware version will remove this constraint, but for now, unplug the P3 power if you find yourself in this situation. If the K3 Utility is running, select the Port tab, and then close the K3 Utility, using the File Exit menu item or select the red X at the top right of the main window. When the K3 Utility is started the next time, the Port tab provides the clearest indication of a successful connection. If you are using a sharing program or device between the host personal computer and your K3's RS-232 port (e.g. N8LP's LP-Bridge or microHAM's Router), change the cabling so that the host PC is connected directly to the K3 without an intervening software or hardware forwarder. These programs send K3 programmer's reference commands, and a K3 in its bootstrap loader isn't yet able to process those commands. Some of the commands might put the K3 bootstrap loader into an unresponsive state. Restart (reboot) the personal computer that will run the K3 Utility This isn't often necessary, but occasionally a serial port or USB device driver doesn't properly close when commanded to do so. Rebooting reinitializes the device and its driver. Restore K3 power and press the K3 power button. You should expect to see MCU LD in an otherwise dark LCD, and the red Tx light should be blinking. Start the K3 Utility and navigate to its Port tab. The K3 Utility should find the K3 at at 38,400 bps. If the Port tab is selected, you should see a K3 Status popup that looks something like this: (picture can't be pasted into a straight text message) If you don't see this status dialog, try pressing Test Communications. If you don't see this dialog, the K3 Utility is not receiving responses to K3 commands, and it cannot load firmware without responses. Information in USB to Serial Adapter Troubleshooting may help to resolve this issue. The problem might be serial port cabling, an incorrect COM port choice, a problem with the Personal Computer, or the K3's internal KIO3 Interface. Once you see this dialog, press the OK button on the K3 Status dialog to continue. If the View Menu Trace menu item is checked, firmware load can take quite a long time. Uncheck Trace unless you require this diagnostic information. Select the Firmware tab, and click Send All New Firmware to K3. The K3 Utility should send MCU firmware to your K3, followed by any other new firmware required. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of mark crossland Sent: Sunday, December 12, 2010 1:23 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 firmware load Good Morning, My K3 will not come out of the mcu ld state and will not load the latest firmware. I have removed the power ,loaded the latest utility, and tried several times to load firmware,but to no avail. I reconnected the power and it is still locked in mcu ld. Any suggestions ? Thanks Mark ---W1VJ K3 427 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] An AGC Story
Bob, Yes I did see your post thanks, but have not yet had the opportunity to digest your results - but I will. When you made these measurements, what settings did you use for the 'audio' Hi-cut and Lo-cut? My thinking was that I would first look at the SA612's output wile injecting multiple signals, and then do the same at suitable points along the signal path as it made its way to the audio output. By doing this it should be possible to find the weakest link in the chain (in terms of IMD), and then attempt to do something to improve the 'weak link's' performance. May I take this opportunity to stress that my comments were not intended to be any kind of criticism of the K3. 73, Geoff GM4ESD . Bob Henderson b...@5b4agn.net wrote on Sunday, December 12, 2010 4:11 AM: snip I made within DSP b/w IMD measurements on my K3 and comparable measurements on my K2. These were included in a post dated 5 December but you may have missed it. The following measurements relate to K3 S/N 4904 on 7MHz with 2.7kHz roofing filter and 2.7kHz DSP b/w. Default slow AGC was selected. The table shows input level at the K3 antenna connector for each of two carriers spaced 500Hz. At each input level, the level of the strongest IMD product observed at the AF output using an HP8568B is recorded alongside. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] An AGC Story
Guy, have one (or several) on me for suggesting such a sensible idea :-) 73, Geoff GM4ESD Guy Olinger K2AV On Sunday, December 12, 2010, at 10:04 AM, Guy Olinger K2AV wrote: Thank you, Bob. But you have robbed Geoff of his favorite whipping boy. We will have to take Geoff out to a pub and help him drown his sorrows. What was your setup? 73, Guy __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] APF
It's been a while since the APF has really pulled out a signal for me that was otherwise impossible to copy. As W4ZV has said, its effectiveness seems dependent on the band condx (QRN vs signal strengths, etc). This morning the APF allowed a weak V73QQ to pop out of the noise on 160M. Tuning with APF is very critical (width is only 30hz) and I use the K3's fine vfo tuning rather than shift. But yes, APF is still working just fine ;-) http://n1eu.com/K3/v73qq12Dec10_1145Z.mp3 (recorded with width at 300hz, NW Beverage antenna) 73, Barry N1EU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Test profile change - ignore
test only __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [P-3] Some menu items in 00.41 are not retained at power off
Hello all, One of the menu items available in 00.41 is the ability to assign centering Marker A or B to a Function button. After selecting it in the menu, it works as it should. But whenever the rig is powered off and turned back on, the feature is disabled. I have to go back in the menu and select this again. However, if I select to use the tap knob feature for centering Marker A or B, that is memorized. Other menu items are memorized. And while I have your attention, what does Level Calibrate do? Thanks for the input. 73 de Art KZ5D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Yamaha CM500 and ANTIVOX setting
Hi Jim, I'll have to do some more experimentation with the settings. And I may try using the battery pack for bias as N1YX is doing. Maybe that would have some impact. 73, Mike K2MK Jim Brown-10 wrote: The mic in the CM500 is a VERY hot mic -- that is, a lot of level. You may need to reduce both mic gain and level. 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 -- View this message in context: http://elecraft.365791.n2.nabble.com/Yamaha-CM500-and-ANTIVOX-setting-tp5827199p5828101.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 firmware load
Are you getting retrys during the software loading process. -- Sent from my Palm Pre On Dec 12, 2010 3:22 AM, mark crossland lt;landscape8...@yahoo.comgt; wrote: Good Morning, My K3 will not come out of the mcu ld state and will not load the latest firmware. I have removed the power ,loaded the latest utility, and tried several times to load firmware,but to no avail. I reconnected thenbsp; power and it is still locked in mcu ld. Any suggestions ? Thanks Mark ---W1VJnbsp;nbsp; K3 427 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Yamaha CM500 and ANTIVOX setting
On 12/12/2010 6:05 AM, Mike K2MK wrote: I'll have to do some more experimentation with the settings. And I may try using the battery pack for bias as N1YX is doing. Maybe that would have some impact. That should NOT have anything to do with it. The battery box simply allows you to not turn on bias. There's no good reason to use the battery box with a K3. His settings should be considered a starting point. Everyone's voice (and way of talking) is a bit different. 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
Re: [Elecraft] Re： Raves about the K3
Or how about this. You could buy a pretty much loaded K3 *AND* a 7700 for what a 7800 costs. I hate to open up the K4 discussion again, but a K3,P3,KPA500, wrapped up in a QRO box with more spread out switchcraft, large dual speakers, and band buttons seems like a no brainer. I would sell my 9000D for one, and keep my K3 for backup, and field use. 73 Jeff kb2m -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Johnny Siu Sent: Saturday, December 11, 2010 18:45 PM To: ed.cie...@verizon.net; elecraft@mailman.qth.net Subject: [Elecraft] Re： Raves about the K3 Hello Ed, I am also using IC7700. Could you please share your comments in the IC7700 yahoo mail reflector group? I don't want to cross post your message in that group without your permission. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Ed Cienki ed.cie...@verizon.net 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/12/12 (日) 1:42:55 AM 主題： [Elecraft] Raves about the K3 This is my first post to this reflector and would like to share some of my observations. First. I have a 4xxx series K3, built by Elecraft that is fully outfitted and filtered running LP-Pan, an EMU-0202 and a MicroHam Station Master. Second, I have been operating an IC-7700 for the past 2 yrs. That being said I have run both rigs side-by-side into a IC-PW1 and Palstar AT-Auto. I must say that each radio has its own benefits and is outstanding to operate, but here is where the K3 shines: 1. True dual VFO/dual receive; 2. Easy MARS modification (yes, I am a licensed AF MARS Operator); 3. IF out. LP-Pan and PowerSDR are outstanding; 4. ESSB - of course with the proper filtering being installed; 5. Tx Eq and Noise Gate - No out-board W2IHY EQ is needed (sorry Julius); 6. Light weight; 7. Unbelievable receive audio with the appropriate filtering; 8. Menu flexibility;and 9. Easy updating of firmware. Candidly, I still love and use the IC-7700, but more and more I am utilizing the K3. The K3 is an outstanding value and robust transceiver. As a separate matter (a bit of a rant here), and for example having seen the ARRL and Sherwood engineering reports regarding the FTDX-5000. We as hams are always in search of nirvana. While I have heard the issues regarding the FTDX-5000 design that have not made the mainstream press, the issue here is not to bash Yaesu, but to congratulate and thank Wayne and Eric for the OUTSTANDING job, not only with the design and operation of the K3, but their support of the user group to identify issues and improvements and their outstanding customer support when you call them for assistance. Kudos to Elecraft. Best, 73, Ed, N2EAC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] An AGC Story
Speaking of criticism, I've done my share of complaining about AGC pumping and pileup mush in the K3. That said, it's still the best contest receiver I've ever use, by a wide margin. It's sensitive, quiet and incredibly selective. In fact, I can get *too* close to adjacent stations without realizing it! In actual contest conditions, the AGC pumping can be reduced to more-or-less acceptable levels by using the 8-pole 400 Hz filter. It becomes a non-problem with the 5-pole 200 Hz filter. I suspect it could be reduced even more by increasing the HAGC threshhold, but evidently not without changing other components in the chain to avoid increased IMD. IMHO, the pileup mush is no worse than any other receiver I've used, and most of the time it's better (that sounds strange, but you know what I mean.) Considering that I had quite a few hours with my rate meter near 200/hr in CQ WW CW, I'd have to say the mush isn't reducing my rate a whole lot. One clue is that the mush effect is most noticable when there's a pileup of relatively weak signals and there's not a nearby strong station -- i.e., when the HAGC is not activated. If most of the signals are at the same pitch, it's mush. A bunch of really weak signals like that are simply darned hard to copy, and I'm beginning to think that no receiver can separate them unless AGC is turned off, with the attendant problem of ears being blown out when a strong station drops by. I have found, however, that the situation improves considerably with diversity reception using two antennas with opposite polarity. There's enough difference in the ever-changing arrival angles to be able to distinguish weak signals at the same pitch. No other receiver can do that for me. 73, Dick WC1M -Original Message- From: Geoffrey Mackenzie-Kennedy [mailto:gm4...@btinternet.com] Sent: Sunday, December 12, 2010 6:30 AM To: Bob Henderson Cc: Elecraft Discussion List Subject: Re: [Elecraft] An AGC Story Bob, Yes I did see your post thanks, but have not yet had the opportunity to digest your results - but I will. When you made these measurements, what settings did you use for the 'audio' Hi-cut and Lo-cut? My thinking was that I would first look at the SA612's output wile injecting multiple signals, and then do the same at suitable points along the signal path as it made its way to the audio output. By doing this it should be possible to find the weakest link in the chain (in terms of IMD), and then attempt to do something to improve the 'weak link's' performance. May I take this opportunity to stress that my comments were not intended to be any kind of criticism of the K3. 73, Geoff GM4ESD . Bob Henderson b...@5b4agn.net wrote on Sunday, December 12, 2010 4:11 AM: snip I made within DSP b/w IMD measurements on my K3 and comparable measurements on my K2. These were included in a post dated 5 December but you may have missed it. The following measurements relate to K3 S/N 4904 on 7MHz with 2.7kHz roofing filter and 2.7kHz DSP b/w. Default slow AGC was selected. The table shows input level at the K3 antenna connector for each of two carriers spaced 500Hz. At each input level, the level of the strongest IMD product observed at the AF output using an HP8568B is recorded alongside. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG2 Frequency Accuracy
Dave, I would expect the frequency to be within a couple hundred Hz of the frequency on the crystal. Yes, you should be able to pad the frequency down with a small parallel capacitor, just like any VXO. I don't know how much range you would get without adding a series inductor to the bottom side on the crystal. Experiment with it and see what you get. Actually, I think it would be easier to just build a VXO or two - manhatten construction is quite easy to do, just cut some pads for the parts of the circuit that need to be isolated from ground and glue them to a PC Board ground plane - alternately, use high value resistors (4.7 megohms for instance) to serve as insulators and build it using Wes Hayward's Ugly Construction techniques. 73, Don W3FPR On 12/12/2010 12:23 AM, David Gilbert wrote: Yeah, I understand that. I was just wondering how close they might be since I don't have a clue what the tolerance is of the crystals used by Elecraft. Specifically, I was wondering if they would be close enough (typically) to use for in-band IMD tests as a function of AGC settings. Or at least close enough that whichever one was higher in frequency could be easily padded down to within a few tens of Hz or so of the other. 73, Dave AB7E On 12/11/2010 7:22 PM, Don Wilhelm wrote: Dave, The frequency accuracy of the XG2 will vary with the individual crystals. It is not specifically for frequency accuracy, but for level accuracy. In other words, I would not depend on the XG2 for any sort of frequency calibration unless you measured the output of a particular one with a calibrated frequency meter. 73, Don W3FPR On 12/11/2010 9:00 PM, David Gilbert wrote: Does anyone know the typical frequency accuracy of the XG2? If I had two XG2's, what would be the typical separation in frequency between the two of them at the 14060 setting? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [P-3] Some menu items in 00.41 are not retained at power off
Amplitude (Level) Calibration is described on page 22 of the latest P3 manual: http://www.elecraft.com/manual/P3%20Owner%27s%20man%20Rev%20A7.pdf Use it to calibrate the amplitude scale on the P3. Bob NW8L On Sun, Dec 12, 2010 at 7:04 AM, k...@aol.com wrote: Hello all, One of the menu items available in 00.41 is the ability to assign centering Marker A or B to a Function button. After selecting it in the menu, it works as it should. But whenever the rig is powered off and turned back on, the feature is disabled. I have to go back in the menu and select this again. However, if I select to use the tap knob feature for centering Marker A or B, that is memorized. Other menu items are memorized. And while I have your attention, what does Level Calibrate do? Thanks for the input. 73 de Art KZ5D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Fwd: An AGC Story
Sorry Geoff. My setup is fairly basic but I believe quite adequate. I use two +10dBm low noise xtal oscillators operated within the 40m band. The output of each is attenuated 20dB before combining via a Minicircuits SCP-2-1. Thereafter the signals pass through an 8MHz LPF to a step attenuator. The SCP-2-1 provides around 33dB port to port isolation at 7MHz. Isolation between the oscillator output stages is therefore around 73dB. 73 Bob, 5B4AGN On 12 December 2010 10:04, Guy Olinger K2AV olin...@bellsouth.net wrote: Thank you, Bob. But you have robbed Geoff of his favorite whipping boy. We will have to take Geoff out to a pub and help him drown his sorrows. What was your setup? 73, Guy On Sat, Dec 11, 2010 at 11:11 PM, Bob Henderson b...@5b4agn.net wrote: Bottom posted for context. Geoff GM4ESD wrote If I had a K3, before I changed the HAGC threshold my *first* measurement would be to look at the output of the SA612 mixer (with a spectrum analyser) while introducing two or more very close spaced signals into the antenna port, so that these signals do get through the roofer - as in a pileup. The objective, of course, would be to obtain an acceptably clean output from the mixer with non intrusive products over a wide range of input levels. IMHO the higher the HAGC's threshold can be the better, provided its control is tight enough when activated to protect all what follows. I made within DSP b/w IMD measurements on my K3 and comparable measurements on my K2. These were included in a post dated 5 December but you may have missed it. The following measurements relate to K3 S/N 4904 on 7MHz with 2.7kHz roofing filter and 2.7kHz DSP b/w. Default slow AGC was selected. The table shows input level at the K3 antenna connector for each of two carriers spaced 500Hz. At each input level, the level of the strongest IMD product observed at the AF output using an HP8568B is recorded alongside. -73dBm Better than -55dBc (Input S9) -63dBm -55dBc -53dBm -50dBc -42dBm -45dBc -33dBm -42dBc -23dBm -37dBc (Input S9+50) These figures are good and IMHO entirely acceptable. Some older transceivers would struggle to provide -35dBc at S9. I made a similar set of measurements with my old K2 S/N 997 -73dBm -50dBc -63dBm -48dBc -53dBm -45dBc -43dBm -48dBc -33dBm -45dBc -23dBm -15dBc Broadly speaking the K3 is as good or better than the K2, which is itself good. It is possible later mods to the K2 may have made it even better. The most recent mods to my K2 were carried out over 5 years ago. 73 Bob, 5B4AGN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
Well, with Santa's trip just around the corner, how are the elves coming with the KPA500? Obviously, the elves are busy right now with P3s, K2s and such, but are there any updates as to the amp's progress? Curious minds want to know ;-) Happy Holidays to all, John K2QY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
If a KPA500 is going to happen I would like to know before I buy something else -- Sent from my Palm Pre On Dec 12, 2010 10:02 AM, John Fritze lt;fritzej...@gmail.comgt; wrote: Well, with Santa's trip just around the corner, how are the elves coming with the KPA500? Obviously, the elves are busy right now with P3s, K2s and such, but are there any updates as to the amp's progress? Curious minds want to know ;-) Happy Holidays to all, John K2QY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K2 for sale
Reluctantly I am forced to sell my beloved K2! Serial no 4185, it's fitted with the ssb board, internal ATU, 60m board, 160m board, RS232 interface and the internal battery kit. Looking for 700GBP plus carriage, new price of kits at present exchange rate about 800GPB If you are interested, please email me off list. 72/73, Mike GW4IQP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
The last I remember is that it is in field test. Phil Philip LaMarche LaMarche Enterprises, Inc p...@lamarcheenterprises.com www.LaMarcheEnterprises.com 727-944-3226 727-937-8834 Fax 727-510-5038 Cell www.w9dvm.com K3 #1605 CCA 98-00827 CRA 1701 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of don Swetzig Sent: Sunday, December 12, 2010 10:14 AM To: John Fritze; elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 update? If a KPA500 is going to happen I would like to know before I buy something else -- Sent from my Palm Pre On Dec 12, 2010 10:02 AM, John Fritze lt;fritzej...@gmail.comgt; wrote: Well, with Santa's trip just around the corner, how are the elves coming with the KPA500? Obviously, the elves are busy right now with P3s, K2s and such, but are there any updates as to the amp's progress? Curious minds want to know ;-) Happy Holidays to all, John K2QY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
Barry, Try disabling the ethernet port on the laptop, they are very good rfi creators. Of course, if you need the network port for internet access, you cant do that and your basically screwed. Jeff Cochrane - VK4BOF Innisfail, QLD, Australia Elecraft K3# 4257 - Original Message - From: Barry To: elecraft@mailman.qth.net Sent: Monday, December 13, 2010 1:38 AM Subject: [Elecraft] RFI from computer Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 Questions and gripes
Hi folks; Yes, I really love my K3 in spite of my questions and gripes; here they are: 1. During the 10 meter contest, I was up around 28.400 operating SSB with the NB on, when I noticed that I was getting a strong CW signal pumping my AGC (or so it seemed). In doing a little research, I found the cw station responsible was down at 28.023, at about S9+40 db; by call, I know the station and that he is about 3 miles away. Far enough and weak enough that I should not be receiving this sort of interference I think, given there are no key clicks, etc. I turn off the NB, and it clears up completely, even 500Hz away, let alone 300 or 400 KHz away. I go back up, no problem except I want to use the NB; turn it back on, problem re-appears. This seems to be an artifact of how the NB is implemented, rendering it useless under these sorts of circumstances. Am I missing something, out of adjustment, or ??? 2. The power switch - early serial number (1476); my power switch - well the rubber / plastic part you press on - is starting to look like a mouse has nibbled on it, with little divots falling off along the top and right side edges. It is looking quite ragged. Has anyone else had this, or know if I can replace just the rubber/plastic part, or do I need to replace the entire switch assembly? Thanks and 73 de Dave, W5SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
Barry - The interference may be coming from the LCD. Can you reduce the brightness of the display? Also check the power supply - try putting beads on the leads. It could be a noisy switching supply. If, as Jeff suggested, it's Ethernet noise, you could use a USB wireless adapter if the laptop does not already have a wireless network feature. Monty K2DLJ On Dec 12, 2010, at 10:38 AM, Barry wrote: Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
Thanks for comments so far. Running wireless for internet connection (and yes, needs to be connected). Unplugged PS and no change while on battery. Using an external monitor, with laptop monitor off. Turning off external monitor makes no difference. Barry W2UP -- View this message in context: http://elecraft.365791.n2.nabble.com/RFI-from-computer-tp5828305p5828355.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] RFI from computer
On Sun, Dec 12, 2010 at 10:06 AM, Barry w...@comcast.net wrote: Thanks for comments so far. Running wireless for internet connection (and yes, needs to be connected) Barry, what Jeff means is to go to the device manager in your Windows, find the internal Ethernet adaptor, and set it to disable. In my case it didn't do much, but it's worth a try. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Questions and gripes
On Sun, Dec 12, 2010 at 9:59 AM, David F. Reed w5sv.d...@gmail.com wrote: ...with the NB on, when I noticed that I was getting a strong CW signal pumping Dave, this is gonna happen with any noise blanker. When I turn on NB on my Brand Y radio, I can hear artifacts from a medium strength CW signal 100 kc away -- way worse than the K3. Still, I use NB all the time. There are 2 huge hospitals a few miles away radiating a magnificent panoply of man-made hash, grinding, static, crunches, groans and hisses. In my noisy location, an NB is so valuable that I am just happy to have one that kills the noise; I'll live with the pumping. Tony KT0NY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 20W Dummy Load at 432MHz?
Hi Gang, I'm prepping for the January VHF Sweepstakes. Going to run my K2 with XV222 and XV432. The instruction sheet for the D/L indicates that it is good to 225MHz. Does anyone know of any specs related to performance at 432MHz? I don't own a power meter good at 50MHz. OK, the bottom line: How about the voltage reading at 20W? 73, Mark K2QO K2 #543 FN03ra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Questions and gripes
This is the way most analog noise blankers work. They look at a wide bandwidth to detect noise pulses and if there are loud signals in the range they can be interpreted as noise. The K3 has both an analog and a DSP noise blanker. If there are large nearby signals, you should reduce the aggressiveness of the analog (or 'IF') blanker. You can do this by holding the NB button and then turning the VFO A knob. The DSP noise blanker -- which will not be affected by off-frequency signals -- is adjusted with the VFO B knob. Depending on the type of noise and signals on the band, you will want to use different 'mixes' of analog and DSP noise blanker adjustments. Regarding the power switch, I've found that a cat is highly effective at reducing nibbling by mice (just kidding, ask Elecraft for a fix)! On 12/12/2010 7:59 AM, David F. Reed wrote: Hi folks; Yes, I really love my K3 in spite of my questions and gripes; here they are: 1. During the 10 meter contest, I was up around 28.400 operating SSB with the NB on, when I noticed that I was getting a strong CW signal pumping my AGC (or so it seemed). In doing a little research, I found the cw station responsible was down at 28.023, at about S9+40 db; by call, I know the station and that he is about 3 miles away. Far enough and weak enough that I should not be receiving this sort of interference I think, given there are no key clicks, etc. I turn off the NB, and it clears up completely, even 500Hz away, let alone 300 or 400 KHz away. I go back up, no problem except I want to use the NB; turn it back on, problem re-appears. This seems to be an artifact of how the NB is implemented, rendering it useless under these sorts of circumstances. Am I missing something, out of adjustment, or ??? 2. The power switch - early serial number (1476); my power switch - well the rubber / plastic part you press on - is starting to look like a mouse has nibbled on it, with little divots falling off along the top and right side edges. It is looking quite ragged. Has anyone else had this, or know if I can replace just the rubber/plastic part, or do I need to replace the entire switch assembly? Thanks and 73 de Dave, W5SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- 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] 20W Dummy Load at 432MHz?
What dummy load? --- On Sun, 12/12/10, Mark Adams msadam...@gmail.com wrote: From: Mark Adams msadam...@gmail.com Subject: [Elecraft] 20W Dummy Load at 432MHz? To: elecraft@mailman.qth.net Date: Sunday, December 12, 2010, 9:32 AM Hi Gang, I'm prepping for the January VHF Sweepstakes. Going to run my K2 with XV222 and XV432. The instruction sheet for the D/L indicates that it is good to 225MHz. Does anyone know of any specs related to performance at 432MHz? I don't own a power meter good at 50MHz. OK, the bottom line: How about the voltage reading at 20W? 73, Mark K2QO K2 #543 FN03ra __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 20W Dummy Load at 432MHz?
I suspect he means the Elecraft DL1 20w dummy load. 73, Byron N6NUL On Sun, Dec 12, 2010 at 8:56 AM, Wes Stewart n...@yahoo.com wrote: What dummy load? --- On Sun, 12/12/10, Mark Adams msadam...@gmail.com wrote: From: Mark Adams msadam...@gmail.com Subject: [Elecraft] 20W Dummy Load at 432MHz? To: elecraft@mailman.qth.net Date: Sunday, December 12, 2010, 9:32 AM Hi Gang, I'm prepping for the January VHF Sweepstakes. Going to run my K2 with XV222 and XV432. The instruction sheet for the D/L indicates that it is good to 225MHz. Does anyone know of any specs related to performance at 432MHz? I don't own a power meter good at 50MHz. OK, the bottom line: How about the voltage reading at 20W? 73, Mark K2QO K2 #543 FN03ra __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Questions and gripes
Hi All, I just had my first failure on the K3. I noticed both the AF RF small knobs were slipping so I thought the set screws were loose. But closer examination showed that both knobs were cracked. I replaced them with some small aluminum ones from Radio Shack. I don't think I over tightened the knobs when I built the radio. Is this a problem with other radios? Maybe I got a bad pair. 73 Hardy N7RT - Original Message - From: David F. Reed w5sv.d...@gmail.com To: elecraft Reflector elecraft@mailman.qth.net; elecraft...@yahoogroups.com Sent: Sunday, December 12, 2010 8:59 AM Subject: [Elecraft] K3 Questions and gripes Hi folks; 2. The power switch - early serial number (1476); my power switch - well the rubber / plastic part you press on - is starting to look like a mouse has nibbled on it, with little divots falling off along the top and right side edges. It is looking quite ragged. Has anyone else had this, or know if I can replace just the rubber/plastic part, or do I need to replace the entire switch assembly? Thanks and 73 de Dave, W5SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
I would try temporarily powering down your router, cable modem, or whatever equipment is used for the internet connection to be sure it's not actually that equipment causing the problem. Also, even though you powered down the external monitor, I would also try disconnecting that cable from your computer to be sure it's not radiating any rf. GL - 73, Tim - N3XX - Original Message - From: Barry w...@comcast.net To: elecraft@mailman.qth.net Sent: Sunday, December 12, 2010 11:06 AM Subject: Re: [Elecraft] RFI from computer Thanks for comments so far. Running wireless for internet connection (and yes, needs to be connected). Unplugged PS and no change while on battery. Using an external monitor, with laptop monitor off. Turning off external monitor makes no difference. Barry W2UP -- View this message in context: http://elecraft.365791.n2.nabble.com/RFI-from-computer-tp5828305p5828355.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] 20W Dummy Load at 432MHz?
It doesn't answer your question, but Ridge Equipment sells a range of excellent surplus dummy loads that are good to several GHz. There is one that only costs $12 and is excellent. It's 75W and they look and work like new. I have several of them. Here is their dummy load page... https://www.ridgeequipment.com/store/dummyloads.html 73, Larry N8LP k2qo wrote: Hi Gang, I'm prepping for the January VHF Sweepstakes. Going to run my K2 with XV222 and XV432. The instruction sheet for the D/L indicates that it is good to 225MHz. Does anyone know of any specs related to performance at 432MHz? I don't own a power meter good at 50MHz. OK, the bottom line: How about the voltage reading at 20W? 73, Mark K2QO K2 #543 FN03ra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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://elecraft.365791.n2.nabble.com/20W-Dummy-Load-at-432MHz-tp5828406p5828495.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] RFI from computer
Barry; I have an LCD monitor. Every now and then I get RFI from it. I disconnect it from the power supply for a few seconds, plug it back in and RFI is gone. It may come back in a couple of days or it can be weeks. de mailto:k...@k2gn.com K2GN - Larry - http://k2gn.com/ http://k2gn.com K3 S/N - 3278P3 S/N - 51 From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Monty Shultes Sent: Sunday, December 12, 2010 10:57 AM To: Barry; elecraft@mailman.qth.net Subject: Re: [Elecraft] RFI from computer Barry - The interference may be coming from the LCD. Can you reduce the brightness of the display? Also check the power supply - try putting beads on the leads. It could be a noisy switching supply. If, as Jeff suggested, it's Ethernet noise, you could use a USB wireless adapter if the laptop does not already have a wireless network feature. Monty K2DLJ On Dec 12, 2010, at 10:38 AM, Barry wrote: Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 message. Checked by AVG - www.avg.com Version: 10.0.1170 / Virus Database: 426/3311 - Release Date: 12/12/10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Is the P3 Now Shipping From Stock or Backordered?
I think it is virtually from stock at the present time. A week ago Friday I finally scratched the P3 itch I had been suffering from for some time and ordered a factory assembled unit. It arrived the following Wednesday via two day air. That means they either had one in stock or assembled it either the same day or the next day after my order. That's about the best service you can expect. Incidentally, I think you'll love it. It really works very well. About the only problem I've encountered so far is my cat who sits on the operating desk and observes the signals going up and down on the P3. I managed to catch him just before he was ready to lunge at the unit. Since he is a big cat I think he would have damaged it had a smashed into it. My life has definitely been complicated when operating CW with one hand and trying to restrain the cat with my other. About the only thing that appears to be missing from the P3 is CAT control which I clearly am in need of. A perusal of the owner's manual does not mention that. I guess it is time to evict him from the premises. Have a great trip for the contest. In view of the weather outside right now I wish I could join you. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jeff Maass Sent: Saturday, December 11, 2010 2:09 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Is the P3 Now Shipping From Stock or Backordered? I'm thinking about getting one before my next trip to PJ2T for CQWW 160 CW in late January. 73, Jeff K8ND __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Questions and gripes
If you look at the K3 schematic you can see that the noise blanker takeoff point is at the output of the first post mixer amplifier. The bandwidth here is necessarily wide. In the blanker itself, there is a double-tuned bandpass filter at the input of the noise amplifier(s). I don't know what the bandwidth of this is, but to minimize the effects on the risetime of noise pulses, it should be as broad as possible. There are then a couple of opportunities for mischief. 1) Strong signals get into the noise amplifier and overdrive the first stage 2) Any signal getting into the noise amplifier that is strong enough to exceed the blanking threshold looks like noise and generates blanking pulses. That is simply the nature of the beast. Wes N7WS --- On Sun, 12/12/10, David F. Reed w5sv.d...@gmail.com wrote: Hi folks; Yes, I really love my K3 in spite of my questions and gripes; here they are: 1. During the 10 meter contest, I was up around 28.400 operating SSB with the NB on, when I noticed that I was getting a strong CW signal pumping my AGC (or so it seemed). In doing a little research, I found the cw station responsible was down at 28.023, at about S9+40 db; by call, I know the station and that he is about 3 miles away. Far enough and weak enough that I should not be receiving this sort of interference I think, given there are no key clicks, etc. I turn off the NB, and it clears up completely, even 500Hz away, let alone 300 or 400 KHz away. I go back up, no problem except I want to use the NB; turn it back on, problem re-appears. This seems to be an artifact of how the NB is implemented, rendering it useless under these sorts of circumstances. Am I missing something, out of adjustment, or ??? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI from computer
Any USB/serial dongles connected. There were some postings previously on these beasties sometimes causing noise. 73 de Brian/K3KO On 12/12/2010 15:38, Barry wrote: Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 message. Checked by AVG - www.avg.com Version: 10.0.1170 / Virus Database: 426/3311 - Release Date: 12/12/10 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1170 / Virus Database: 426/3311 - Release Date: 12/12/10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
Congratulations on your purchase of the K-3. I have two of them. Both are fully outfitted as well is a K2/100 which I built several years ago. The K-3s are simply outstanding. I just acquired a P3 41 of them and that works extremely well. I also have an FTDX 5000 MP. That is an excellent radio and as you mentioned it does have its strong points. Its main receiver is extremely good. But as you noted its second receiver is not as good. It does not use the roofing filters which are available to the main receiver and, unlike the main receiver its first IF is in the VHF region so that narrow crystal roofing filters would probably not be very effective. As you know, the story is quite different with the K-3. In fact, I am not aware of any other radio offering two receivers with identical, outstanding characteristics. And of course, the company is just outstanding to deal with. Not only are their products cutting edge but they know how to treat and deal with customers. I think that will certainly ensure a long and prosperous future for Elecraft. Incidentally, I was a member of AF Mars for many years but finally resigned about three years ago because of lack of activity on 1S1. Since I was discouraged from operating on nets with other modes, I just saw no reason to continue the activity. Bruce-W8FU and ex AFA1XD ---Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ed Cienki Sent: Saturday, December 11, 2010 12:43 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Raves about the K3 This is my first post to this reflector and would like to share some of my observations. First. I have a 4xxx series K3, built by Elecraft that is fully outfitted and filtered running LP-Pan, an EMU-0202 and a MicroHam Station Master. Second, I have been operating an IC-7700 for the past 2 yrs. That being said I have run both rigs side-by-side into a IC-PW1 and Palstar AT-Auto. I must say that each radio has its own benefits and is outstanding to operate, but here is where the K3 shines: 1. True dual VFO/dual receive; 2. Easy MARS modification (yes, I am a licensed AF MARS Operator); 3. IF out. LP-Pan and PowerSDR are outstanding; 4. ESSB - of course with the proper filtering being installed; 5. Tx Eq and Noise Gate - No out-board W2IHY EQ is needed (sorry Julius); 6. Light weight; 7. Unbelievable receive audio with the appropriate filtering; 8. Menu flexibility;and 9. Easy updating of firmware. Candidly, I still love and use the IC-7700, but more and more I am utilizing the K3. The K3 is an outstanding value and robust transceiver. As a separate matter (a bit of a rant here), and for example having seen the ARRL and Sherwood engineering reports regarding the FTDX-5000. We as hams are always in search of nirvana. While I have heard the issues regarding the FTDX-5000 design that have not made the mainstream press, the issue here is not to bash Yaesu, but to congratulate and thank Wayne and Eric for the OUTSTANDING job, not only with the design and operation of the K3, but their support of the user group to identify issues and improvements and their outstanding customer support when you call them for assistance. Kudos to Elecraft. Best, 73, Ed, N2EAC Sent on the SprintR Now Network from my BlackBerryR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] AF RF knobs
Thanks to all who replied. Apparently this was a quality issue at one time that I was unaware of. I should have checked the archives now that I think about it. 73 Hardy N7RT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
I seem to remember that Elecraft said it was currently in field tests. I also think a possible February, 2011 date was mentioned as a sales target. I'm sure that is subject to revision, depending upon the outcome of the field tests as well as the usual hassle in setting up the new production line. But I believe it is definitely going to happen and not in the very distant future but not, unfortunately, in time for this Christmas. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of don Swetzig Sent: Sunday, December 12, 2010 10:14 AM To: John Fritze; elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 update? If a KPA500 is going to happen I would like to know before I buy something else .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] K3 Am carrier suppression on SSB
Is there a method to method to minimise am carrier level detectable on ssb deadkey please? Adrian ... vk4tux __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 20W Dummy Load at 432MHz?
Ah, that is funny. I forgot to mention that I am using the Elecraft DL-1. 73, Mark K2QO K2 #543 FN03ra On Sun, Dec 12, 2010 at 12:01 PM, Byron Servies by...@servies.us wrote: I suspect he means the Elecraft DL1 20w dummy load. 73, Byron N6NUL On Sun, Dec 12, 2010 at 8:56 AM, Wes Stewart n...@yahoo.com wrote: What dummy load? --- On Sun, 12/12/10, Mark Adams msadam...@gmail.com wrote: From: Mark Adams msadam...@gmail.com Subject: [Elecraft] 20W Dummy Load at 432MHz? To: elecraft@mailman.qth.net Date: Sunday, December 12, 2010, 9:32 AM Hi Gang, I'm prepping for the January VHF Sweepstakes. Going to run my K2 with XV222 and XV432. The instruction sheet for the D/L indicates that it is good to 225MHz. Does anyone know of any specs related to performance at 432MHz? I don't own a power meter good at 50MHz. OK, the bottom line: How about the voltage reading at 20W? 73, Mark K2QO K2 #543 FN03ra __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI from computer
On 12/13/2010 03:00 AM, elecraft-requ...@mailman.qth.net wrote: Subject: [Elecraft] RFI from computer To:elecraft@mailman.qth.net Message-ID:4d04ec8f.4010...@comcast.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Was playing in the 10m contest this weekend and had noise (like a dirty, hashy carrier, similar to TV-generated noise) every 5-10 kHz as I tuned the band. When I turned my laptop off, it went away. My laptop is about 4 ft from the radio and about 25 ft from my balcony dipole. Any thoughts on how to decrease the noise? Tnx, Barry W2UP I use one of these, works great; http://www.coilcraft.com/rs232.cfm#table Adrian ... vk4tux __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
Bruce: I agree with all points made in your email. Candidly, when I first got the K3, I did have a bit of a learning curve, but wow, it is now a lot of fun to operate! With anticipated permission of the moderator, regarding AF MARS, I would like to make the following comments since there had been much in the way of program changes over the past 3 years. First, there is a newer MOI and inter-service SOP for voice nets, so all MARS services can interoperate on each other's frequencies and NCS. Second, the mission of MARS has been upgraded to the Military Auxiliary Radio System instead of Military Affiliate Radio System. The major change in focus is the ability to respond to man-made and natural disasters (EEI and ECOM) not just passing military traffic. Third, CW is back. While the US military may have phased out CW as a mode, MARS (all 3 programs)view CW in the realm of a viable mode of communication (under the digital domain), especially in emergency situations, and accordingly, there are now CW nets. Lastly, to conform to FEMA regions, the former region 1 as you knew it has been realigned as have the other AF MARS Regions, and the entire US is now aligned into six area's which manage the new AF MARS FEMA aligned regions. I appreciate and thank you for your comments. I also wish to thank the moderators for their patience regarding my AF MARS posting. Best, 73, Ed, N2EAC Sent on the Sprint® Now Network from my BlackBerry® -Original Message- From: Bruce McLaughlin bmcla...@bex.net Date: Sun, 12 Dec 2010 12:40:18 To: ed.cie...@verizon.net; elecraft@mailman.qth.net Subject: RE: [Elecraft] Raves about the K3 Congratulations on your purchase of the K-3. I have two of them. Both are fully outfitted as well is a K2/100 which I built several years ago. The K-3s are simply outstanding. I just acquired a P3 41 of them and that works extremely well. I also have an FTDX 5000 MP. That is an excellent radio and as you mentioned it does have its strong points. Its main receiver is extremely good. But as you noted its second receiver is not as good. It does not use the roofing filters which are available to the main receiver and, unlike the main receiver its first IF is in the VHF region so that narrow crystal roofing filters would probably not be very effective. As you know, the story is quite different with the K-3. In fact, I am not aware of any other radio offering two receivers with identical, outstanding characteristics. And of course, the company is just outstanding to deal with. Not only are their products cutting edge but they know how to treat and deal with customers. I think that will certainly ensure a long and prosperous future for Elecraft. Incidentally, I was a member of AF Mars for many years but finally resigned about three years ago because of lack of activity on 1S1. Since I was discouraged from operating on nets with other modes, I just saw no reason to continue the activity. Bruce-W8FU and ex AFA1XD ---Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ed Cienki Sent: Saturday, December 11, 2010 12:43 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Raves about the K3 This is my first post to this reflector and would like to share some of my observations. First. I have a 4xxx series K3, built by Elecraft that is fully outfitted and filtered running LP-Pan, an EMU-0202 and a MicroHam Station Master. Second, I have been operating an IC-7700 for the past 2 yrs. That being said I have run both rigs side-by-side into a IC-PW1 and Palstar AT-Auto. I must say that each radio has its own benefits and is outstanding to operate, but here is where the K3 shines: 1. True dual VFO/dual receive; 2. Easy MARS modification (yes, I am a licensed AF MARS Operator); 3. IF out. LP-Pan and PowerSDR are outstanding; 4. ESSB - of course with the proper filtering being installed; 5. Tx Eq and Noise Gate - No out-board W2IHY EQ is needed (sorry Julius); 6. Light weight; 7. Unbelievable receive audio with the appropriate filtering; 8. Menu flexibility;and 9. Easy updating of firmware. Candidly, I still love and use the IC-7700, but more and more I am utilizing the K3. The K3 is an outstanding value and robust transceiver. As a separate matter (a bit of a rant here), and for example having seen the ARRL and Sherwood engineering reports regarding the FTDX-5000. We as hams are always in search of nirvana. While I have heard the issues regarding the FTDX-5000 design that have not made the mainstream press, the issue here is not to bash Yaesu, but to congratulate and thank Wayne and Eric for the OUTSTANDING job, not only with the design and operation of the K3, but their support of the user group to identify issues and improvements and their outstanding customer support when you call them for assistance. Kudos to Elecraft. Best, 73, Ed, N2EAC Sent on the SprintR Now Network from my
Re: [Elecraft] K3 Am carrier suppression on SSB
A K3 is a digital radio. There is no balanced modulator for SSB with a balance adjustment. The SSB envelope is directly created (without any carrier or opposite sideband, only digital artifacts) in number stream form by digital programs in firmware. The SSB envelope first emerges, fully formed, at the TX IF, formed from the number stream that is input to the TX Digital to Analog Converter. This is clear in the schematics on the web page. The closest carrier that could have a vestigial output would be the 8 meg conversion frequency that is used to convert the signal from 15 kHz up to the 8 meg filter frequencies. That would be 15 kHz away and suppressed by the ultimate rejection loss of the roofing filter used for TX SSB. It would not be mistaken as an unsupressed carrier, even if it could be heard. What is more likely, is that a 120 Hz or 60 Hz hum is on the audio and getting through. Deadkey SSB, one of these could be mistaken for unsuppressed carrier. That will require cleaning up the audio wiring or power supply, taking care of pin 1 problems, etc. 73, Guy. On Sun, Dec 12, 2010 at 1:40 PM, Adrian vk4...@bigpond.com wrote: Is there a method to method to minimise am carrier level detectable on ssb deadkey please? Adrian ... vk4tux __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
Having seen some other possibilities, I'm not going to go for them. I got some bandwidth downtown and read the ARRL review of the SPE, and it's not an amp for a RTTY op, which I am. I'd cheerfully pay for a burger (I mean KPA500) now, for delivery later, as I did with the K3, especially if I could get #22 to match my K3. BTW, we visited VK9NL and got the station sorted, so she'll be on the air again for the first time since VK9NS's death. 73, doug, from VK9NN On 12-Dec-10 15:13, don Swetzig wrote: If a KPA500 is going to happen I would like to know before I buy something else On Dec 12, 2010 10:02 AM, John Fritzelt;fritzej...@gmail.comgt; wrote: Well, with Santa's trip just around the corner, how are the elves coming with the KPA500? Obviously, the elves are busy right now with P3s, K2s and such, but are there any updates as to the amp's progress Curious minds want to know ;-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Front Panel Board
I am up to page 29 on the K2 assembly manual, working on assembly of the Front Panel Kit, where it talks about uninstalled components. I do have the KSB2 SSB adapter kit. So I looked through the kit for the nine listed components and located all but two. These two components might be here, but I can not identify them. RP3, 10k resistor network. By process of elimination of resistor packs in the kit, I have a resistor pack with a number L836103 Y43 on it. That number does not match up with the part number listed, or its alternative part number. It is red in color and has eight pins. Could this be RP3? The other component I can not locate is P1. IT is a microphone configuration connector. There is no picture of it and the location for it on the back side of the Front Panel board is not much help. Looks like there are four holes in the circuit board, but I could not find anything in the KSB2 kit that had four pins, unless it is in the small paper envelop, where I have not yet looked. Your help is appreciated, 73 de WN2k Paul Agoglia __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
What is 1S1? Ron AC7AC -Original Message- Congratulations on your purchase of the K-3. I have two of them. Both are fully outfitted as well is a K2/100 which I built several years ago. The K-3s are simply outstanding. I just acquired a P3 41 of them and that works extremely well. I also have an FTDX 5000 MP. That is an excellent radio and as you mentioned it does have its strong points. Its main receiver is extremely good. But as you noted its second receiver is not as good. It does not use the roofing filters which are available to the main receiver and, unlike the main receiver its first IF is in the VHF region so that narrow crystal roofing filters would probably not be very effective. As you know, the story is quite different with the K-3. In fact, I am not aware of any other radio offering two receivers with identical, outstanding characteristics. And of course, the company is just outstanding to deal with. Not only are their products cutting edge but they know how to treat and deal with customers. I think that will certainly ensure a long and prosperous future for Elecraft. Incidentally, I was a member of AF Mars for many years but finally resigned about three years ago because of lack of activity on 1S1. Since I was discouraged from operating on nets with other modes, I just saw no reason to continue the activity. Bruce-W8FU and ex AFA1XD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
Bruce, I've heard that the military has discontinued CW training for communications. That's too bad. I wonder if MARS still uses CW or have they gone to phone and digital? 73, Tom Childers Radio Amateur N5GE Licensed since 1976 QCWA Member 35102 ARRL Life Member On Sun, 12 Dec 2010 12:40:18 -0500, Bruce McLaughlin bmcla...@bex.net wrote: [snip] Incidentally, I was a member of AF Mars for many years but finally resigned about three years ago because of lack of activity on 1S1. Since I was discouraged from operating on nets with other modes, I just saw no reason to continue the activity. Bruce-W8FU and ex AFA1XD [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
Where CW operators are still active, some ARMY MARS operations has made room for them. I've not been involved with military comms recently, but found a report that Army MARS has launched a test of CW nets in four Midwestern states after recognizing how it could have been a major asset in disasters like Hurricane Katrina. In one exercise it was used to link the Transport Security Agency (TSA) with the Army HQ at FT. Huachuca, Arizona. It all depends upon how many operators are available. CW is still the most reliable digital text mode on the air *IF* trained operators are available. That's exactly what killed CW on the high seas. There it was economic to avoid the cost of hiring operators with CW skills. Ron AC7AC -Original Message- Bruce, I've heard that the military has discontinued CW training for communications. That's too bad. I wonder if MARS still uses CW or have they gone to phone and digital? 73, Tom Childers Radio Amateur N5GE Licensed since 1976 QCWA Member 35102 ARRL Life Member __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 2.8 kHz filter tilt
Hi again, A little while ago I wrote the message below. I am still searching for ways to compensate for the tilt in my new 2.8kHz crystal filter. One way would be to have a way to set the RX equalizer through a serial command / macro. Is this going to happen soon? Another way would be to have the RX equalizer settings stored by mode so they could be different for USB and LSB. Is this going to happen soon? Am I really asking too much here? I spent money getting the 8 pole 2.8kHz filter hoping it would solve the tonality difference between USB and LSB, but achieved nothing. Recently there was somebody on here wishing that Elecraft would sort these filters weeding out the ones with a bad tilt. Should I order another one hoping to get one with a flatter response? AB2TC - Knut Hello all, I recently replaced the 5-pole 2.7kHz roofing filter in my K3 with the 8-pole 2.8kHz hoping to get rid of the difference in tonality between USB and LSB. But the difference is still there. These two links show the noise spectrum of the receiver in USB and LSB. http://ab2tc.getmyip.com:8000/pictures/usb.png http://ab2tc.getmyip.com:8000/pictures/lsb.png In USB there is a definite upward tilt of the passband and the opposite for LSB. This is quite audible. Is this normal and is there anything I can do about it (other than asking Elecraft to add by mode equalizer)? AB2TC - Knut -- View this message in context: http://elecraft.365791.n2.nabble.com/2-8-kHz-filter-tilt-tp5829094p5829094.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] 2.8 kHz filter tilt
Knut, does that Spectrum Lab software allow you to do time averaging for the plots? If you can average over 500+ samples, it will smooth out the plot and make it more useful and readable. 73, Barry N1EU ab2tc wrote: These two links show the noise spectrum of the receiver in USB and LSB. http://ab2tc.getmyip.com:8000/pictures/usb.png http://ab2tc.getmyip.com:8000/pictures/lsb.png -- View this message in context: http://elecraft.365791.n2.nabble.com/2-8-kHz-filter-tilt-tp5829094p5829146.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] 2.8 kHz filter tilt
I sometimes marvel at the number of different directions Elecraft gets pulled with respect to the K3. I can't imagine two more polar opposite message threads than this one and the recent ones discussing AGC action. I'm not trying to overtly judge the merits of either camp, but one is trying to optimize the rig as an audiophile piece of equipment by eliminating 4db of passband tilt on single strong signals in a conversational setting and the other is trying to optimize its communication capabilities by eliminating IMD mush on multiple low level signals in a contest setting. Hopefully for the sake of Wayne, Eric, Lyle and company schizophrenia is not an acquired disease ... 73, Dave AB7E On 12/12/2010 3:18 PM, ab2tc wrote: Hi again, A little while ago I wrote the message below. I am still searching for ways to compensate for the tilt in my new 2.8kHz crystal filter. One way would be to have a way to set the RX equalizer through a serial command / macro. Is this going to happen soon? Another way would be to have the RX equalizer settings stored by mode so they could be different for USB and LSB. Is this going to happen soon? Am I really asking too much here? I spent money getting the 8 pole 2.8kHz filter hoping it would solve the tonality difference between USB and LSB, but achieved nothing. Recently there was somebody on here wishing that Elecraft would sort these filters weeding out the ones with a bad tilt. Should I order another one hoping to get one with a flatter response? AB2TC - Knut Hello all, I recently replaced the 5-pole 2.7kHz roofing filter in my K3 with the 8-pole 2.8kHz hoping to get rid of the difference in tonality between USB and LSB. But the difference is still there. These two links show the noise spectrum of the receiver in USB and LSB. http://ab2tc.getmyip.com:8000/pictures/usb.png http://ab2tc.getmyip.com:8000/pictures/lsb.png In USB there is a definite upward tilt of the passband and the opposite for LSB. This is quite audible. Is this normal and is there anything I can do about it (other than asking Elecraft to add by mode equalizer)? AB2TC - Knut __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad On Dec 12, 2010, at 3:18 PM, ab2tc ab...@arrl.net wrote: Hi again, A little while ago I wrote the message below. I am still searching for ways to compensate for the tilt in my new 2.8kHz crystal filter. One way would be to have a way to set the RX equalizer through a serial command / macro. Is this going to happen soon? Another way would be to have the RX equalizer settings stored by mode so they could be different for USB and LSB. Is this going to happen soon? Am I really asking too much here? I spent money getting the 8 pole 2.8kHz filter hoping it would solve the tonality difference between USB and LSB, but achieved nothing. Recently there was somebody on here wishing that Elecraft would sort these filters weeding out the ones with a bad tilt. Should I order another one hoping to get one with a flatter response? AB2TC - Knut Hello all, I recently replaced the 5-pole 2.7kHz roofing filter in my K3 with the 8-pole 2.8kHz hoping to get rid of the difference in tonality between USB and LSB. But the difference is still there. These two links show the noise spectrum of the receiver in USB and LSB. http://ab2tc.getmyip.com:8000/pictures/usb.png http://ab2tc.getmyip.com:8000/pictures/lsb.png In USB there is a definite upward tilt of the passband and the opposite for LSB. This is quite audible. Is this normal and is there anything I can do about it (other than asking Elecraft to add by mode equalizer)? AB2TC - Knut -- View this message in context: http://elecraft.365791.n2.nabble.com/2-8-kHz-filter-tilt-tp5829094p5829094.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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 2.8 kHz filter tilt
Last time I checked, DSM-IV said it was not known to be contagious. 73, Fred K6DGW - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org On 12/12/2010 3:06 PM, David Gilbert wrote: Hopefully for the sake of Wayne, Eric, Lyle and company schizophrenia is not an acquired disease ... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 2.8 kHz filter tilt
I think you should save your money. Apparently, they appear to have a lot, if not all, filters that behave this way. Short of having a more symmetrical filter in place the two sidebands aren't ever going to sound the same. I know that theory says we shouldn't be able to hear a difference, but it's quite audible and quite annoying to me. Here's a plot of mine: http://k6mhe.com/n7ws/Elecraft_2_8_Filter.gif Wes N7WS --- On Sun, 12/12/10, ab2tc ab...@arrl.net wrote: From: ab2tc ab...@arrl.net Subject: [Elecraft] 2.8 kHz filter tilt To: elecraft@mailman.qth.net Date: Sunday, December 12, 2010, 3:18 PM Hi again, A little while ago I wrote the message below. I am still searching for ways to compensate for the tilt in my new 2.8kHz crystal filter. One way would be to have a way to set the RX equalizer through a serial command / macro. Is this going to happen soon? Another way would be to have the RX equalizer settings stored by mode so they could be different for USB and LSB. Is this going to happen soon? Am I really asking too much here? I spent money getting the 8 pole 2.8kHz filter hoping it would solve the tonality difference between USB and LSB, but achieved nothing. Recently there was somebody on here wishing that Elecraft would sort these filters weeding out the ones with a bad tilt. Should I order another one hoping to get one with a flatter response? AB2TC - Knut __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Raves about the K3
Don: If you are referring to Tx settings (not Rx settings), please note the my mic is a Marshall MXL R144 Ribbon Mic, which goes into a Behringher Ultragain-Pro MIC-2200 tube pre-amp, then into a Behringher Ultra-Curve DEQ2496 (set up in the manner as suggested by NU9N), from there, I use an NCS multi-switcher to determine what radio is to be tx’d. Currently, the K3 is set to FL2 (6Hz AM Filter), with Tx ESSB turned on (using BW usually between 3.0 to 3.2), Tx Gate at 25, The Tx eq follows: 50hz = +6; 100hz = +2; 200hz = -2; 400hz = -6; 800hz = -2; 1600hz = +0; 2400hz = +3; and 3200hz = +5. I do run compression on the K3 at 19. How this was determined was actually utilizing the NU9N settings for the DEQ-2496 and then relying on a group of hams that I have known for years that have heard my voice on several other radios, over the telephone and in-person to adjust the Eq on the K3. That is how we arrived at those settings. Did I answer your question? Best 73, Ed, N2EAC From: don Swetzig [mailto:gold...@charter.net] Sent: Saturday, December 11, 2010 1:26 PM To: ed.cie...@verizon.net; elecraft@mailman.qth.net Subject: Re: [Elecraft] Raves about the K3 Please share your RX settings for SSB and your method of determining them Thx Don KD8NNU -- Sent from my Palm Pre _ On Dec 11, 2010 12:42 PM, Ed Cienki ed.cie...@verizon.net wrote: This is my first post to this reflector and would like to share some of my observations. First. I have a 4xxx series K3, built by Elecraft that is fully outfitted and filtered running LP-Pan, an EMU-0202 and a MicroHam Station Master. Second, I have been operating an IC-7700 for the past 2 yrs. That being said I have run both rigs side-by-side into a IC-PW1 and Palstar AT-Auto. I must say that each radio has its own benefits and is outstanding to operate, but here is where the K3 shines: 1. True dual VFO/dual receive; 2. Easy MARS modification (yes, I am a licensed AF MARS Operator); 3. IF out. LP-Pan and PowerSDR are outstanding; 4. ESSB - of course with the proper filtering being installed; 5. Tx Eq and Noise Gate - No out-board W2IHY EQ is needed (sorry Julius); 6. Light weight; 7. Unbelievable receive audio with the appropriate filtering; 8. Menu flexibility;and 9. Easy updating of firmware. Candidly, I still love and use the IC-7700, but more and more I am utilizing the K3. The K3 is an outstanding value and robust transceiver. As a separate matter (a bit of a rant here), and for example having seen the ARRL and Sherwood engineering reports regarding the FTDX-5000. We as hams are always in search of nirvana. While I have heard the issues regarding the FTDX-5000 design that have not made the mainstream press, the issue here is not to bash Yaesu, but to congratulate and thank Wayne and Eric for the OUTSTANDING job, not only with the design and operation of the K3, but their support of the user group to identify issues and improvements and their outstanding customer support when you call them for assistance. Kudos to Elecraft. Best, 73, Ed, N2EAC Sent on the Sprint® Now Network from my BlackBerry® __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Re： Raves about the K3
Hi Johnny: I have read your posts, private emails to me and I certainly respect your opinions. Like I've said below, I love each radio for different reasons. But, I am not looking to nit-pick either radio. I was just stating some of the more pronounced differences that I find favorable with the K3 and why I purchased it over any other radio as a second radio in my shack alongside of my IC-7700. Candidly, I am not interested in cross-posting my comments to the IC-7700 reflector or granting copyright to permit any cross-posting. These are my opinions about 2 very different radio's at 2 very different price points and I am very happy with the functionality of each of them in different settings. In the US the K3 fully outfitted and built by Elecraft is between $2,000 and $2,500 less than the IC-7700. So there is a big price difference. On HF, other than operating on the AF MARS frequencies, I am predominantly a rag-chewer (mainly on 160m very late at night), non-contester/Non-Dx'er (although not my passion, I will chase some rare Dx), conversational CW operator (20m - albeit about 17 wpm). My raves are about the K3 are intended to let the K3 community (and especially Wayne and Eric) know what features are desirable, why they are desirable and to assist and give them some direction from the user community. Best 73, Ed, N2EAC -Original Message- From: Johnny Siu [mailto:vr2...@yahoo.com.hk] Sent: Saturday, December 11, 2010 6:45 PM To: ed.cie...@verizon.net; elecraft@mailman.qth.net Subject: Re： [Elecraft] Raves about the K3 Hello Ed, I am also using IC7700. Could you please share your comments in the IC7700 yahoo mail reflector group? I don't want to cross post your message in that group without your permission. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Ed Cienki ed.cie...@verizon.net 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/12/12 (日) 1:42:55 AM 主題： [Elecraft] Raves about the K3 This is my first post to this reflector and would like to share some of my observations. First. I have a 4xxx series K3, built by Elecraft that is fully outfitted and filtered running LP-Pan, an EMU-0202 and a MicroHam Station Master. Second, I have been operating an IC-7700 for the past 2 yrs. That being said I have run both rigs side-by-side into a IC-PW1 and Palstar AT-Auto. I must say that each radio has its own benefits and is outstanding to operate, but here is where the K3 shines: 1. True dual VFO/dual receive; 2. Easy MARS modification (yes, I am a licensed AF MARS Operator); 3. IF out. LP-Pan and PowerSDR are outstanding; 4. ESSB - of course with the proper filtering being installed; 5. Tx Eq and Noise Gate - No out-board W2IHY EQ is needed (sorry Julius); 6. Light weight; 7. Unbelievable receive audio with the appropriate filtering; 8. Menu flexibility;and 9. Easy updating of firmware. Candidly, I still love and use the IC-7700, but more and more I am utilizing the K3. The K3 is an outstanding value and robust transceiver. As a separate matter (a bit of a rant here), and for example having seen the ARRL and Sherwood engineering reports regarding the FTDX-5000. We as hams are always in search of nirvana. While I have heard the issues regarding the FTDX-5000 design that have not made the mainstream press, the issue here is not to bash Yaesu, but to congratulate and thank Wayne and Eric for the OUTSTANDING job, not only with the design and operation of the K3, but their support of the user group to identify issues and improvements and their outstanding customer support when you call them for assistance. Kudos to Elecraft. Best, 73, Ed, N2EAC Sent on the Sprint® Now Network from my BlackBerry® __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
On 12/12/2010 3:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So, when do we get to the bad news? :-) So the question is Can the K3 be made to transmit in the 1600 kc freq? I don't know that, it can be made to hit MARS and EMCOMM frequencies. 25 to 50 watts. I believe on AM it is good for 25 watts ICAS. Don't know about CCS duty. Also not sure how CCS your Mali friend needs to be. Is this even a reasonable idea? U ... I can think of some better and cheaper ones, maybe starting with a 1600 KHz crystal oscillator driving a couple of loafing 807's plate modulated by another couple of 807's? I might be able to find the tubes [or 1625's] down in the tube box in the basement. 73, Fred K6DGW - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] NAQCC Sprint Tuesday night!
NAQCC Sprint Tuesday night! Our December sprint is this coming Tuesday evening local time which is Wednesday 0130-0330z time. I will refer you to the proper URL: http://home.windstream.net/yoel/sprint201011.html There you will find all the details as to time, frequencies and also a special prize. This month's Special Prize goes to the winner, to be decided by drawing among all who submit a valid log, gets a choice of paddle handles, straight key knobs, and/or K2 knob inserts donated by Gregg WB8LZG. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate (this includes QRO); but you must use QRP power levels to compete for awards. If you are not already a member of NAQCC... membership is FREE! Just sign up on the NAQCC website and you will receive a handsome certificate, with your membership number which is good for life, plus a starter kit. Come join us and have a real good time! 72/73 de Dave VA3RJ NAQCC #0004 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Front Panel Board
Paul, The 103 in that R-Pak says that it is a 10k unit - if the number of pins is correct, it is the right one. The microphone configuration header is a dual-row header (having pins) that indeed mounts on the back side of the front panel board. It has two rows of 8 pins each. 73, Don W3FPR On 12/12/2010 3:46 PM, Paul Agoglia wrote: These two components might be here, but I can not identify them. RP3, 10k resistor network. By process of elimination of resistor packs in the kit, I have a resistor pack with a number L836103 Y43 on it. That number does not match up with the part number listed, or its alternative part number. It is red in color and has eight pins. Could this be RP3? The other component I can not locate is P1. IT is a microphone configuration connector. There is no picture of it and the location for it on the back side of the Front Panel board is not much help. Looks like there are four holes in the circuit board, but I could not find anything in the KSB2 kit that had four pins, unless it is in the small paper envelop, where I have not yet looked. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly showing it off. They do indeed seem to be treating it as a serious product on the way. The slides has the obligatory not yet type accepted warning of course. Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-update-tp5828216p5829378.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Re： KPA500 update?
Hi Leigh, My ususal questions : Any indication of price? Will it come with tuner KAT500? I am stilling deciding between SPE Expert 1ka and KPA500+KAT500. In my operation situation, an ATU is a must. cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Leigh L. Klotz Jr WA5ZNU le...@wa5znu.org 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/12/13 (一) 8:55:53 AM 主題： Re: [Elecraft] KPA500 update? I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly showing it off. They do indeed seem to be treating it as a serious product on the way. The slides has the obligatory not yet type accepted warning of course. Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-update-tp5828216p5829378.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Automatic beacon scanner program for K3?
Hi all, Is there an automatic beacon scanner for the K3? We're not on the air all the time, and it would be useful if we could get a profile of openings to this location (VK9NN now) by having a computer driving a K3 to scan the beacons when otherwise this gear is sitting unused. For future trips, I'm also thinking that something like that for the SDR-IQ, too. 73, doug __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Automatic beacon scanner program for K3?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I use VE3NEA's Faros with my K2/100. Don't know why it would work with the K3. http://www.dxatlas.com/Faros/ On 12/12/2010 2:29 PM, Doug Faunt N6TQS +1-510-655-8604 wrote: Hi all, Is there an automatic beacon scanner for the K3? We're not on the air all the time, and it would be useful if we could get a profile of openings to this location (VK9NN now) by having a computer driving a K3 to scan the beacons when otherwise this gear is sitting unused. For future trips, I'm also thinking that something like that for the SDR-IQ, too. 73, doug - -- R. Kevin Stover ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNBXPLAAoJEAu8BkU0m9Mn2psIAMmvvw5vKjP8p/fZez+PrnYG RqyYcwbrN9Gz6eCJuhBMWoJCc3UoqWuSJVXFaI0FIpFyHRViHX2OpcO0Mfu65ikK tTB45DD+OuMe9FVJ+/ACz3peST9tW0Ks4y13b53lunbFo2jGo24GFcU6Y10IdOO4 2UJoxd2jcKuSTPH1FtfIiZpNLwxBuWrLsPlaLmNryLSwz56Jx6redxjwLC2VN13u n/bERJiVEVaKPY/7Ws8xz/nzwvfzz/KGfpF1O3MnJDBaWP3tkQjZsZZ7Mj80vuKm 7hgS1z3pAlj57+W/3V5JY9MSqlfUdwOI3jmNltro/Y/TkS0FjIqx0Xy9WDNcnCE= =YaMQ -END PGP SIGNATURE- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
Phil, It sounds like he wants a restored Johnson Ranger with the VFO padded down to 1600 kHz. Definitely more economical than a K3. Yes, I believe the K3 can do it, but I do not know for certain. 73, Don W3FPR On 12/12/2010 6:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Re： Raves about the K3
Jeff, Since the K3, P3 and KPA500 are the same height, you may want to figure out how to attach one to the other (metal strips on the bottom come to mind), so it is all one big unit. Then you could have all that functionality in one package. I will keep mine as separate assemblies, thank you. I know that is not what you meant, but I just could not resist - I see no advantage to having all that in one single enclosure. 73, Don W3FPR On 12/12/2010 9:20 AM, Jeff KB2M wrote: Or how about this. You could buy a pretty much loaded K3 *AND* a 7700 for what a 7800 costs. I hate to open up the K4 discussion again, but a K3,P3,KPA500, wrapped up in a QRO box with more spread out switchcraft, large dual speakers, and band buttons seems like a no brainer. I would sell my 9000D for one, and keep my K3 for backup, and field use. 73 Jeff kb2m .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 for AM broadcast?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNBXWzAAoJEAu8BkU0m9MnIU0H/ij35EkRL5SNOLP85N2kPlIV 71E6GL3Fy/6RPcXACbLuTVw345gF0sWOF0OCqcRHv2MeOO/XsPEt/Ih2QJRTXdz+ PrJ3hmndWVvmd4ecmZ4jWIdtz9lqXRtzJ1HTQq/AAKPqygTgKyOZlKjZJ5ZoU3jH MGxmmKQ0Uoo4ykLUvxq0RwHToN8eBXXY2JpPSBUHSPvZyCyaBKoidi9p6SZzltFG h3L63CdG7kO5C3UiUzOPk7FLTbv4MGIDjwGer5lcG5MdU1BO96QzVoldFFVje1eI q5jzWLRF4GWczr0eYuPX5mPdc7SZMMj8n0cUvbJWJwZ2fK2dwx0yfwhxcZksVoc= =turf -END PGP SIGNATURE- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Re： Raves about the K3
and then, to make it all weigh more, stick some Dynamat Xtreme in the boxes. At about 0.5lb/ft^2 you should be able to increase the weight on your desk by several pounds. 73, Byron N6NUL On Sun, Dec 12, 2010 at 5:23 PM, Don Wilhelm w3...@embarqmail.com wrote: Since the K3, P3 and KPA500 are the same height, you may want to figure out how to attach one to the other (metal strips on the bottom come to mind), so it is all one big unit. -- - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 for AM broadcast?
With so much information and products out there for OUR PART 15 products and all of the stuff offered on eBay for low power AM and FM, WHY would you want to modify a wonderful and dedicated amateur radio? Be Real. Mel From: R. Kevin Stover rksto...@mchsi.com To: Phil Townsend phi...@mac.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sun, December 12, 2010 5:24:03 PM Subject: Re: [Elecraft] K3 for AM broadcast? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNBXWzAAoJEAu8BkU0m9MnIU0H/ij35EkRL5SNOLP85N2kPlIV 71E6GL3Fy/6RPcXACbLuTVw345gF0sWOF0OCqcRHv2MeOO/XsPEt/Ih2QJRTXdz+ PrJ3hmndWVvmd4ecmZ4jWIdtz9lqXRtzJ1HTQq/AAKPqygTgKyOZlKjZJ5ZoU3jH MGxmmKQ0Uoo4ykLUvxq0RwHToN8eBXXY2JpPSBUHSPvZyCyaBKoidi9p6SZzltFG h3L63CdG7kO5C3UiUzOPk7FLTbv4MGIDjwGer5lcG5MdU1BO96QzVoldFFVje1eI q5jzWLRF4GWczr0eYuPX5mPdc7SZMMj8n0cUvbJWJwZ2fK2dwx0yfwhxcZksVoc= =turf -END PGP SIGNATURE- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Re： Raves about the K3
Hey, now what about a custom desktop case made to match the Elecraft K series equipment with slide in/out drawers (lockable via spring loaded screws) so that one BIG box shack becomes a reality. The huge advantage is IF an issue arises, simply 'pull' the defective item from the box and do what needs to be done but still have a somewhat functional rig IF the K3 is not at fault. I might even consider doing this myself so that for portable use I have just one box to pack up when on the move. Maybe a part number could be K3LB-500...:-) K3 = Radio LB = Large Box 500 = Total output power Aaaah...nice to dream eh? Now to think of a way to install a 'swing lifter' to heave the box from storage to desk...:-( 73's Gary On Mon, Dec 13, 2010 at 11:36 AM, Byron Servies by...@servies.us wrote: and then, to make it all weigh more, stick some Dynamat Xtreme in the boxes. At about 0.5lb/ft^2 you should be able to increase the weight on your desk by several pounds. 73, Byron N6NUL On Sun, Dec 12, 2010 at 5:23 PM, Don Wilhelm w3...@embarqmail.com wrote: Since the K3, P3 and KPA500 are the same height, you may want to figure out how to attach one to the other (metal strips on the bottom come to mind), so it is all one big unit. -- - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679, P3 #546 For everything else there's Mastercard!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
You will need the K3BCTX board. There has been a delay in production however. N4LQ Steve - Original Message - From: Mel Farrer farrerfo...@yahoo.com To: R. Kevin Stover rksto...@mchsi.com; Phil Townsend phi...@mac.com Cc: elecraft@mailman.qth.net Sent: Sunday, December 12, 2010 8:53 PM Subject: Re: [Elecraft] K3 for AM broadcast? With so much information and products out there for OUR PART 15 products and all of the stuff offered on eBay for low power AM and FM, WHY would you want to modify a wonderful and dedicated amateur radio? Be Real. Mel From: R. Kevin Stover rksto...@mchsi.com To: Phil Townsend phi...@mac.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sun, December 12, 2010 5:24:03 PM Subject: Re: [Elecraft] K3 for AM broadcast? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNBXWzAAoJEAu8BkU0m9MnIU0H/ij35EkRL5SNOLP85N2kPlIV 71E6GL3Fy/6RPcXACbLuTVw345gF0sWOF0OCqcRHv2MeOO/XsPEt/Ih2QJRTXdz+ PrJ3hmndWVvmd4ecmZ4jWIdtz9lqXRtzJ1HTQq/AAKPqygTgKyOZlKjZJ5ZoU3jH MGxmmKQ0Uoo4ykLUvxq0RwHToN8eBXXY2JpPSBUHSPvZyCyaBKoidi9p6SZzltFG h3L63CdG7kO5C3UiUzOPk7FLTbv4MGIDjwGer5lcG5MdU1BO96QzVoldFFVje1eI q5jzWLRF4GWczr0eYuPX5mPdc7SZMMj8n0cUvbJWJwZ2fK2dwx0yfwhxcZksVoc= =turf -END PGP SIGNATURE- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
Why concern about how other people spend their money? Maybe the guy is going to do a short broadcasting gig, then give out some TZ RTTY QSOs on 20-meters and move on to 7O and give me a new one. Wes N7WS --- On Sun, 12/12/10, Mel Farrer farrerfo...@yahoo.com wrote: From: Mel Farrer farrerfo...@yahoo.com Subject: Re: [Elecraft] K3 for AM broadcast? To: R. Kevin Stover rksto...@mchsi.com, Phil Townsend phi...@mac.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Date: Sunday, December 12, 2010, 6:53 PM With so much information and products out there for OUR PART 15 products and all of the stuff offered on eBay for low power AM and FM, WHY would you want to modify a wonderful and dedicated amateur radio? Be Real. Mel From: R. Kevin Stover rksto...@mchsi.com To: Phil Townsend phi...@mac.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sun, December 12, 2010 5:24:03 PM Subject: Re: [Elecraft] K3 for AM broadcast? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNBXWzAAoJEAu8BkU0m9MnIU0H/ij35EkRL5SNOLP85N2kPlIV 71E6GL3Fy/6RPcXACbLuTVw345gF0sWOF0OCqcRHv2MeOO/XsPEt/Ih2QJRTXdz+ PrJ3hmndWVvmd4ecmZ4jWIdtz9lqXRtzJ1HTQq/AAKPqygTgKyOZlKjZJ5ZoU3jH MGxmmKQ0Uoo4ykLUvxq0RwHToN8eBXXY2JpPSBUHSPvZyCyaBKoidi9p6SZzltFG h3L63CdG7kO5C3UiUzOPk7FLTbv4MGIDjwGer5lcG5MdU1BO96QzVoldFFVje1eI q5jzWLRF4GWczr0eYuPX5mPdc7SZMMj8n0cUvbJWJwZ2fK2dwx0yfwhxcZksVoc= =turf -END PGP SIGNATURE- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
A single frequency AM transmitter is so hammer simple for anyone who knows anything about transmitters to assemble from parts (or old e-junk) it seems absurd to take something like the K3 for that job. If the person involves isn't competent to build a transmitter, he/she will never keep one operating under the primitive conditions you describe. Ron AC7AC -Original Message- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
Sounds like the job for a Johnson or Heathkit... like the DX100, or Viking... driving a pair of 813s... works good, last long time.. till water hits the bottles. Then it no ticky no more. --... ...-- Dale - WC7S in Wy From: r...@cobi.biz To: elecraft@mailman.qth.net Date: Sun, 12 Dec 2010 19:19:36 -0800 Subject: Re: [Elecraft] K3 for AM broadcast? A single frequency AM transmitter is so hammer simple for anyone who knows anything about transmitters to assemble from parts (or old e-junk) it seems absurd to take something like the K3 for that job. If the person involves isn't competent to build a transmitter, he/she will never keep one operating under the primitive conditions you describe. Ron AC7AC -Original Message- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Check this out
Speaking of 50W on AM, this picture will make your mouth water if you're old enough: http://home.comcast.net/~bipi/pix/ranger1.jpg http://home.comcast.net/~bipi/pix/ranger1.jpgNote the little details: the parasitic chokes, the 6L6s in their iron cylinders, the output pi-net, the plate choke.if you want to put a bootleg AM station on the air from the jungle, that's what you need, right there in that pic. That, plus one of those old 1-ounce xtals in the FT-243 holder. 73, Tony KT0NY -- We don't want every single college grad with mathematical aptitude to become a derivatives trader. -- Barack Obama __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] DL-1 Readings on 432MHz?
OK, I was playing in the 10M contest while I typed that last thread which clearly read like I was doing drugs. So, here it goes again. What reading should I expect on my DL-1 when my it is being fed 20W at 432MHz? Since the instruction sheet says it is good to 225 MHz, I assume that it is way off at 432 MHz. If the DL-1 causes a high VSWR, the XV432 may not be putting out the power it indicates creating another issue. To N8LP: Yes, I do need a good dummy load for 100W at UHF. I'll check out your supplier. 73, Mark K2QO K2 #543 FN03ra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Check this out
Ah, nice Tony. I built one of those in 1954 and later added that grid block keyer (on the elevated chassis just visible above the VFO can). Ran it for the next 20+ years, pounding brass 99% of the time. The metal tubes are really 1614's - 6L6's on steroids that were developed for the military during WWII. Like many of the kits available in the 1950's, E.F. Johnson relied heavily on the huge quantities of WWII surplus parts available. The Ranger is an outstanding little rig. Had the pleasure of rebuilding one for a buddy just a couple of years ago. One of those would make a great bootleg AM transmitter, with its plate modulation with negative feedback in the speech amp for outstanding linearity. Ron AC7AC Speaking of 50W on AM, this picture will make your mouth water if you're old enough: http://home.comcast.net/~bipi/pix/ranger1.jpg http://home.comcast.net/~bipi/pix/ranger1.jpgNote the little details: the parasitic chokes, the 6L6s in their iron cylinders, the output pi-net, the plate choke.if you want to put a bootleg AM station on the air from the jungle, that's what you need, right there in that pic. That, plus one of those old 1-ounce xtals in the FT-243 holder. 73, Tony KT0NY -- We don't want every single college grad with mathematical aptitude to become a derivatives trader. -- Barack Obama __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
I agree. Single frequency removes a lot of the hassles of a TX of any sort. And, AM besides you don't have any of the hassles of filters and whatever for SSB. Is it more then an oscillator, audio amplifier, modulation transformer, and RF PA On Dec 12, 2010, at 7:19 PM, Ron D'Eau Claire wrote: A single frequency AM transmitter is so hammer simple for anyone who knows anything about transmitters to assemble from parts (or old e-junk) it seems absurd to take something like the K3 for that job. If the person involves isn't competent to build a transmitter, he/she will never keep one operating under the primitive conditions you describe. Ron AC7AC -Original Message- Hash: SHA1 Not even in the same neighborhood as reasonable. I'm pretty sure the boys in Aptos wouldn't want one of their products used as some sort of pirate AM station in deepest darkest Africa. On 12/12/2010 5:59 PM, Phil Townsend wrote: I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad - -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft CW Net Report for December 12th 13th, 2010
Good Evening, I had to move the database to my new Internet computer and reinstall the software to run it. Now life should be easier (cross fingers here). Currently the connection to the tower at the top of the mountain which provides me with wireless Internet service is not being shut down by the fog. Yesterday at this time it was dropping out and then shut off. The fog was very dense. Propagation was not so hot today. On twenty meters I was hearing a lot of fuzz and on forty it was louder with some QSB. Twenty was not nearly as productive as it has been recently. From what my sister wrote me there is quite a storm coming to Wisconsin. I am unsure if it is related to the weather which passed through here a few days back. Currently it is getting warmer while the rain has eased up just a little. On to the lists = On 14049.5 kHz at 2300z: N0TA - John - CO - K3 - 994 AB9V - Mike - IN - K3 - 398 K1THP - Dave - CT - K2 - 3942 W0CZ - Ken - ND - K3 - 457 K4JPN - Steve - GA - K2 - 1422 NK6A - Don - CA - K3 - 3569 On 7045 kHz at 0100z: NO8V - John - MI - K3 - 820 N0OKS - Mark - WI - K3 AB9V - Mike - IN - K3 - 398 K6PJV - Dale - CA - K3 - 1183 W0RSR - Mike - CO - K2 - 5767 K1THP - Dave - CT - K2 - 3942 W6SU - John - CA - K2 - 228 W7AQK - Dave - AZ - K3 - 96 K0DTJ - Brian - CA - K3 - 4113 N0TA - John - CO - K3 - 994 N7KRT - Jeff - TX - K2 - 5471 W0CZ - Ken - ND - K3 - 457 Weather reports varied from -9 F to 70 degrees. Snow to rain to sun as you moved around the country. While I have far too much rain Mike in CO needs some precipitation. AZ had temperatures of 70 degrees with their normal sunny winter day. Snow in IN and ND with fog and sun in CA. My sister also mentioned she had her windows and doors open to enjoy the warm day. She lives just off of the Columbia River at a much lower elevation than where I live. Most of my snow has vanished here but if one looks there are a few isolated spots of it. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 for AM broadcast?
What makes K3 is 90% receiver and 10% transmitter (IMHO). Last time I checked, broadcast stations do not need to receive. What you need is crops duster, K3 is supersonic jet. Kind of out of proportion, so no, this is not a reasonable idea. 73, Igor, N1YX -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Townsend Sent: Sunday, December 12, 2010 6:59 PM Cc: elecraft@mailman.qth.net Subject: [Elecraft] K3 for AM broadcast? I have a friend in Mali that wants to set up an AM radio some were out in the boonies. No Reliable AC power etc etc third world problems import duty tax endless very red tape. So the question is Can the K3 be made to transmit in the 1600 kc freq? 25 to 50 watts. Is this even a reasonable idea? Sent from my iPad On Dec 12, 2010, at 3:18 PM, ab2tc ab...@arrl.net wrote: Hi again, A little while ago I wrote the message below. I am still searching for ways to compensate for the tilt in my new 2.8kHz crystal filter. One way would be to have a way to set the RX equalizer through a serial command / macro. Is this going to happen soon? Another way would be to have the RX equalizer settings stored by mode so they could be different for USB and LSB. Is this going to happen soon? Am I really asking too much here? I spent money getting the 8 pole 2.8kHz filter hoping it would solve the tonality difference between USB and LSB, but achieved nothing. Recently there was somebody on here wishing that Elecraft would sort these filters weeding out the ones with a bad tilt. Should I order another one hoping to get one with a flatter response? AB2TC - Knut Hello all, I recently replaced the 5-pole 2.7kHz roofing filter in my K3 with the 8-pole 2.8kHz hoping to get rid of the difference in tonality between USB and LSB. But the difference is still there. These two links show the noise spectrum of the receiver in USB and LSB. http://ab2tc.getmyip.com:8000/pictures/usb.png http://ab2tc.getmyip.com:8000/pictures/lsb.png In USB there is a definite upward tilt of the passband and the opposite for LSB. This is quite audible. Is this normal and is there anything I can do about it (other than asking Elecraft to add by mode equalizer)? AB2TC - Knut -- View this message in context: http://elecraft.365791.n2.nabble.com/2-8-kHz-filter-tilt-tp5829094p5829094.h tml 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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 update?
On 12/12/2010 4:55 PM, Leigh L. Klotz Jr WA5ZNU wrote: I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly showing it off. They do indeed seem to be treating it as a serious product on the way. The slides has the obligatory not yet type accepted warning of course. It's definitely well on the way to completion. Several members of local clubs work for Elecraft as part of the engineering team, and are busily doing the final work to get it in production. Things like quantity shipments of the needed parts, training the crew to build it, FCC type acceptance testing, etc. 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
Re: [Elecraft] KPA500 update?
Ah, who needs that stuff? I just had my first QSO on my new homebrew amplifier: 900 watts out from a pair of class-C 813's! Instant on and full QSK. Of course it has separate grid and plate bandswitches and three tuning controls to adjust, one of which is a multiturn vacuum capacitor, but it's imposing as all get out with four analog meters (2 of which are super-cool Western Electric center-adjust types). On 12/12/2010 9:29 PM, Jim Brown wrote: On 12/12/2010 4:55 PM, Leigh L. Klotz Jr WA5ZNU wrote: I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly showing it off. They do indeed seem to be treating it as a serious product on the way. The slides has the obligatory not yet type accepted warning of course. It's definitely well on the way to completion. Several members of local clubs work for Elecraft as part of the engineering team, and are busily doing the final work to get it in production. Things like quantity shipments of the needed parts, training the crew to build it, FCC type acceptance testing, etc. 73, Jim K9YC -- 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] KPA500 update?
No thanks for tube amplifier. Bad experience from High tension. Sent from my iPhone 4 Vic K2VCO v...@rakefet.com 於 2010年12月13日 下午3:14 寫道： Ah, who needs that stuff? I just had my first QSO on my new homebrew amplifier: 900 watts out from a pair of class-C 813's! Instant on and full QSK. Of course it has separate grid and plate bandswitches and three tuning controls to adjust, one of which is a multiturn vacuum capacitor, but it's imposing as all get out with four analog meters (2 of which are super-cool Western Electric center-adjust types). On 12/12/2010 9:29 PM, Jim Brown wrote: On 12/12/2010 4:55 PM, Leigh L. Klotz Jr WA5ZNU wrote: I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly showing it off. They do indeed seem to be treating it as a serious product on the way. The slides has the obligatory not yet type accepted warning of course. It's definitely well on the way to completion. Several members of local clubs work for Elecraft as part of the engineering team, and are busily doing the final work to get it in production. Things like quantity shipments of the needed parts, training the crew to build it, FCC type acceptance testing, etc. 73, Jim K9YC -- 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
