[Elecraft] Calling CQ on PSK-31
I have a K3/10 with a 66' dipole in the attic and I am running 5 watts with incredible reach. From Detroit, I am reaching FL, WA and Ottawa. But my contacts have been when I answer a CQ. When I call CQ, I do not seem to get a call back. Any ideas? Thanks in advance. The Reflector is an incredible resource. -- Frank KD8FIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AM TX - Questions and Observations
I can't speak for details on the K3. Only generally. I also have a question regarding asymetric AM modulation and the K3 - is it possible for the TX to exceed 100% positive modulation whilst maintaining less than 100% negative? Being only new to the AM mode, I am not sure if it is possible with any TX that uses low level modulation. Any info greatly appreciated. It is actually easier to have clean asymmetrical modulation with low-level AM than it is with a tetrode in a plate modulated circuit. It is also easier to have better linearity with low level modulation. http://www.w8ji.com/amplitude_modulation.htm Someday I'll have to get an AM filter and try my K3. I guess there is no way to use the transmitter without an AM filter 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AM TX - Questions and Observations
Using the FM filter for AM transmit has been requested but may or may not happen. According to Wayne, this depends on whether it can meet transmit specs and development priorities. I'd like to have AM mainly to work one friend who is running 1950s Harvey Wells gear but all the filter slots in my K3 are filled already. The FM filter does work fine for receiving AM, at least for KCFR, one of my wife's favorite public radio stations. Dunc, W5DC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Update on the Availability of Legacy Rework Eliminator(TM) Accessories!
But wouldn't that be the advantage of using Gary's RW eliminators - that you wouldn't have to make them yourself, or do any guesswork as far as dimensions, etc? If I had planned on adding more features to my K2 in the future, the RW eliminators seemed like a good way to go for a very reasonable price. There was a cost in terms of having to work them into the build, sure, but otherwise they looked like good items to me. I stopped at the NB and ant. tuner on my K2, but seems to me to be a good alternative if I had planned on going further with it. JMO, 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Update-on-the-Availability-of-Legacy-Rework-Eliminator-TM-Accessories-tp5033744p5035910.html Sent from the [K2] 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] KAT3 use questions
BTW, here are a couple of things you can do to achieve a better match with the KAT3: If you tap ATU TUNE again within a few moments after the first tune attempt the KAT3 will go into a more comprehensive tuning mode. It takes longer but may find a better match. You may also be able to obtain a better match by manually setting the tuning elements. I had that situation on 160m where the KAT3 could get to SWR 3.5:1 but I could improve it to under 2.0 with the manual settings (Config Menu: KAT3/LCSet). 73, Drew AF2Z On Mon, 10 May 2010 14:45:10 -0600, Stan, KR7C wrote: I just finished building a K3 (#4181) and have a question about using the KAT3. When I hit the ATU button with the KAT3 enabled, it does its thing for a second or two and then flashes a SWR value on the display as expected. I want to operate on 80m with a VERY limited choice of antennas. My questions are: 1) If the displayed SWR is, say, 4.1:1, does that tell me that the ATU successfully matched the load and that I can operate the radio without fear of damage? 2) What does the display indicate when it cannot achieve a reasonable match and I should not operate the radio? Thanks for any info on this. 73, Stan, KR7C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Update on the Availability of Legacy Rework Eliminator(TM) Accessories!
The point was that Gary and Ken have no more Un-PCB modules left. So now one either has to find them somewhere, or make their own or just not bother and install the options as they are built. Adding the options later is not a difficult task at all - solder some headers in and clip/unsolder jumpers for the most part. 73, Don W3FPR lstavenhagen wrote: But wouldn't that be the advantage of using Gary's RW eliminators - that you wouldn't have to make them yourself, or do any guesswork as far as dimensions, etc? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
I suppose if I had that problem, I would establish a QSO with someone who had a good signal then ask them to stand by while you call CQ and ask them to listen and respond to it. That might eliminate the luck factor. Steve N4LQ - Original Message - From: Frank MacDonell kd8...@gmail.com To: Elecraft elecraft@mailman.qth.net Sent: Tuesday, May 11, 2010 8:13 AM Subject: [Elecraft] Calling CQ on PSK-31 I have a K3/10 with a 66' dipole in the attic and I am running 5 watts with incredible reach. From Detroit, I am reaching FL, WA and Ottawa. But my contacts have been when I answer a CQ. When I call CQ, I do not seem to get a call back. Any ideas? Thanks in advance. The Reflector is an incredible resource. -- Frank KD8FIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Just a thought from a PSK beginner, a 3 by 3 CQ in PSK31 is really short if you do the (IMO) right thing and listen carefully in between each CQ. Just a few seconds. Same with a CQ in CW at 20wpm or more, you're only on the air for a really short time. So unless the other station has a pan adapter, the likelihood of them happening to hear you during those times is pretty small unless it's a contest or QSO party situation. Fortunately, there's not much shortage of other stations calling CQ if the band is open and during active times (i.e. in the morning or the evening when folks are coming home from work) so there's still plenty of opportunities to make QSO's. As pan adapters come into more widespread use, it'll be easier to browse the band for other stations too. So as my elmers used to tell me years ago, be patient and keep listening... 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Calling-CQ-on-PSK-31-tp5035676p5036056.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] Calling CQ on PSK-31
Panadapter? You can see most of the PSK section of any band on the software's waterfallAssuming you're using software ie. MIXW etc. Steve N4LQ - Original Message - From: lstavenhagen lstavenha...@hotmail.com To: elecraft@mailman.qth.net Sent: Tuesday, May 11, 2010 9:55 AM Subject: Re: [Elecraft] Calling CQ on PSK-31 Just a thought from a PSK beginner, a 3 by 3 CQ in PSK31 is really short if you do the (IMO) right thing and listen carefully in between each CQ. Just a few seconds. Same with a CQ in CW at 20wpm or more, you're only on the air for a really short time. So unless the other station has a pan adapter, the likelihood of them happening to hear you during those times is pretty small unless it's a contest or QSO party situation. Fortunately, there's not much shortage of other stations calling CQ if the band is open and during active times (i.e. in the morning or the evening when folks are coming home from work) so there's still plenty of opportunities to make QSO's. As pan adapters come into more widespread use, it'll be easier to browse the band for other stations too. So as my elmers used to tell me years ago, be patient and keep listening... 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Calling-CQ-on-PSK-31-tp5035676p5036056.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] Calling CQ on PSK-31
Ah, very good point, tnx Steve. My CW bias and PSK beginnerism is showing here hi hi... 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Calling-CQ-on-PSK-31-tp5035676p5036150.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] KAT3 use questions
Drew How do you return to that manually set value without going through that procedure each time? Does it remember manual settings as well as auto-tune settings? David G3UNA You may also be able to obtain a better match by manually setting the tuning elements. I had that situation on 160m where the KAT3 could get to SWR 3.5:1 but I could improve it to under 2.0 with the manual settings (Config Menu: KAT3/LCSet). 73, Drew AF2Z __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Format your CQs so they include DE call call (i.e. your call twice after the DE.) Then use this site http://psk.gladstonefamily.net/pskmap.html to see whether anyone received you. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/Calling-CQ-on-PSK-31-tp5035676p5036362.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] Subject: Re: Calling CQ on PSK-31
I find I have the same experience, and I typically run 20w on PSK. I have no clue as to why that happens. I have pretty good luck at getting QSOs when I respond to CQs, but I rarely see anyone responding to my own CQs. I have noticed that the longer my CQ string, or the more I repeat it, the more frequently I get a response to the CQ. I've also noticed a lot of stations that repeat their 3x3 CQs at least two or three times before they get an answer. Panadapter? You can see most of the PSK section of any band on the software's waterfallAssuming you're using software ie. MIXW etc. Just because I can see it on the waterfall doesn't mean that I have any idea if it's a CQ or not. And if it's a short CQ, by the time I click over to it, it's gone. A couple of products (e.g., Digipan) show you the text from multiple transmissions at a time, but not all the major products do that (e.g., DM780). Jon KB1QBZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Personally, I don't have the patience for PSK (I don't care to hear what kind of computer you're using and your dog's name on the first over) so my experience is limited. That said, although I know PSK has a reputation for being a mode where you don't need higher power or good antennas, your power is 10-20 dB below what the other guys are probably running and your antenna is another 10-20 dB below a dipole in the clear. When you answer someone he is more likely to pull you out than he would be if he was looking around for a QSO. Another factor if there are a lot of signals on the band is the poor (IMHO) practice of running the receiver with wide open i-f bandwidth. If there is a strong signal in the pass-band the AGC will tend to suppress the weaker signals. Of course, there is nothing you can do at your end about this. You are between a rock and a hard spot. You need to call long enough for someone to find you and their decoder to lock on to your signal and not so long that guys like me who find you think, Will this guy ever stop calling CQ? Also, I assume that you're calling on a band that is open. The bands are open more that a lot of people think, as a check of beacons can show; however, calling CQ with QRP and poor antennas will not bring much success without a lot of patience on your part. Hang in there or QRO. Wes N7WS --- On Tue, 5/11/10, Frank MacDonell kd8...@gmail.com wrote: I have a K3/10 with a 66' dipole in the attic and I am running 5 watts with incredible reach. From Detroit, I am reaching FL, WA and Ottawa. But my contacts have been when I answer a CQ. When I call CQ, I do not seem to get a call back. Any ideas? Thanks in advance. The Reflector is an incredible resource. -- Frank KD8FIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
On May 11, 2010, at 9:14 AM, Jon Perelstein wrote: Just because I can see it on the waterfall doesn't mean that I have any idea if it's a CQ or not. And if it's a short CQ, by the time I click over to it, it's gone. Which is a good reason to buy an Apple Mac and help to increase my AAPL stock value even more... The CocoaModem digital interface application that runs only on the Mac has a very nifty feature. Even if a waterfall trace of a message is over, as long as it is in the displayed buffer you can click on it and see the text of that stream for the amount of the buffer contents that is retained. This feature allows me to click on any obvious current or previous stream (previous of course is dependent on the buffer history) to interpret the contents. Often I have caught a CQ call this way and can step right in and respond. Of course, I have not used too many other digital interface applications so I am not sure if this particular feature is available elsewhere. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
On Tue, 11 May 2010 09:14:10 -0700 (PDT), you wrote: A couple of products (e.g., Digipan) show you the text from multiple transmissions at a time, but not all the major products do that (e.g., DM780). In DM780 we have 'SuperBrowser' that can show up to 60 QSOs at one time. And in chat mode you can click on the waterfall and have the program decoding a missed signal. -- OV1A Jens Drive the way you wish your children would. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
It is available on DM780. I'm not sure about others. --- On Tue, 5/11/10, Phil Hystad phys...@mac.com wrote: Which is a good reason to buy an Apple Mac and help to increase my AAPL stock value even more... The CocoaModem digital interface application that runs only on the Mac has a very nifty feature. Even if a waterfall trace of a message is over, as long as it is in the displayed buffer you can click on it and see the text of that stream for the amount of the buffer contents that is retained. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
The feature described below (playback trace still in the buffer) is also available in Fldigi (which I happen to use for PSK). Fumi Okushi/KB2KVV From: Phil Hystad phys...@mac.com Subject: Re: [Elecraft] Subject: Re: Calling CQ on PSK-31 Date: Tue, 11 May 2010 09:30:44 -0700 On May 11, 2010, at 9:14 AM, Jon Perelstein wrote: Just because I can see it on the waterfall doesn't mean that I have any idea if it's a CQ or not. And if it's a short CQ, by the time I click over to it, it's gone. The CocoaModem digital interface application that runs only on the Mac has a very nifty feature. Even if a waterfall trace of a message is over, as long as it is in the displayed buffer you can click on it and see the text of that stream for the amount of the buffer contents that is retained. This feature allows me to click on any obvious current or previous stream (previous of course is dependent on the buffer history) to interpret the contents. Often I have caught a CQ call this way and can step right in and respond. Of course, I have not used too many other digital interface applications so I am not sure if this particular feature is available elsewhere. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
This is pure speculation. I've observed the same thing running QRP on digital modes. I believe it could be a simple matter of the QRP signals being less bright on the typical waterfall compared to someone running 30-50 watts, and it's probably only natural that someone looking for a QSO will click on the brighter signals. Even though copy may be 100% on the dimmer trace, folks wanting a solid connection will gravitate to the bright traces. There is probably no way to confirm this, but I also have had better luck responding to someone else's CQ, and usually they have no problem with my signal. Parker WD8JOL K2 2636 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
LS, W5QD writes in reference to short PSK31 CQs: ... unless the other station has a pan adapter, the likelihood of them happening to hear you during those times is pretty small unless it's a contest or QSO party situation. LS, Some PSK31 decoding software is designed to simultaneously copy multiple PSK31 signals, each on a separate line. I've used Digipan for years. When it decodes the letters CQ from a station, the entire line background color changes from white to another color on each line with a CQ' in it. So even a 1x1 CQ will show up boldly using Digipan. Other software may also have this feature. A simple click on that line will quickly put you on the correct frequency to answer the CQ. If you haven't yet used Digipan, give it a try. It's a free download from www.digipan.net . 73, Rich - K1HTV = = = From: lstavenhagen lstavenha...@hotmail.com Subject: Re: [Elecraft] Calling CQ on PSK-31 LS, W5QD writes in reference to short PSK31 CQs: So unless the other station has a pan adapter, the likelihood of them happening to hear you during those times is pretty small unless it's a contest or QSO party situation. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Let me amend that to ...power is 10-12 dB... --- On Tue, 5/11/10, Wes Stewart n...@yahoo.com wrote: That said, although I know PSK has a reputation for being a mode where you don't need higher power or good antennas, your power is 10-20 dB below what the other guys are probably running and your antenna is another 10-20 dB below a dipole in the clear. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
On May 11, 2010, at 9:26 AM, Wes Stewart wrote: That said, although I know PSK has a reputation for being a mode where you don't need higher power or good antennas... That very well might be the reputation but I would take exception to that notion. Antennae systems *always* matter - especially on the digital modes. Regarding the original poster's question, I am on the digital modes a lot – almost every day. Finding stations to answer my CQ is highly variable. Los Angeles County in California isn't exactly rare DX. :-) A strong, sharp, clean trace in the 'fall will attract more responses. An overdriven trace will be shunned but mostly I find it is a matter of patience and looking on the right band at the right time. Julian, G4ILO's excellent suggestion to incorporate http://psk.gladstonefamily.net/pskmap.html to find out where people are listening and when will go a long way in helping you discover places and times you might be heard. The cool thing about PSK Reporter is that it is a tireless listener. It will log stations for you will you work, sleep or are otherwise engaged. The other day I noticed on PSK Reporter that central Eurasia was coming in at around 11pm local on 20m the last few nights. I called CQ and got 16 consecutive responses from European Russia, Asiatic Russia, Kazakhstan, Moldova and the Ukraine! A little mini pile-up. I felt like a big gun or a rare DXpedition. All this with 35 watts and a doublet. Additionally don't just sit on one frequency calling CQ. If one isn't working it may be that there is another, louder local station that you can't hear at all covering you up. Move, call QRL and try again. Another country heard from. 73 de Eric, KG6MZS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
On May 11, 2010, at 9:14 AM, Jon Perelstein wrote: I have noticed that the longer my CQ string, or the more I repeat it, the more frequently I get a response to the CQ. I've also noticed a lot of stations that repeat their 3x3 CQs at least two or three times before they get an answer. With something like PSK31, the receiving station has to achieve phase lock, or at the least frequency lock if it is using a non-coherent demodulator. Evenn with non-coherent demodulation, the local oscillator of the demodulator has to get within 7.8 Hz (90 degree phase resolution at the symbol rate of BPSK31) to get any copy at all, and if your SNR is poor at the receiving end, he really has to get to within 1 Hz. This means that the receiver could take a large part of a second before it can start decoding you. Your CQ will have to be at least that long, even assuming that your call sign is the very last thing that you transmit. Most PSK31 software today have the capability of multiple demodulating (similar to VE3NEA's Skimmer for CW), and this problem is lessened nowadays. Many people are watching for CQs using the multiple decoders. Just because I can see it on the waterfall doesn't mean that I have any idea if it's a CQ or not. And if it's a short CQ, by the time I click over to it, it's gone. I had noticed this many years ago. People were sending CQs that are too short. By the time I see a signal on the waterfall to click on it, he has already stopped calling. I had to wait until he calls again. Because of that, I implemented what I called the click buffer in cocoaModem. Think of it as an old fashion tape recorder's tape loop. The tape allows you to go back in time to replay the signal back. When you click on a signal, the demodulator attempts to frequency/phase lock on to that signal. Once the lock is achieved and the local oscillator is locked and not allowed to change anymore, the tape loop is played back to the demodulator. The loop is played back at a faster rate than the normal system, so the decoding catches up with real time very rapidly. In cocoaModem, this exhibits itself as a short pause right after clicking on the waterfall, and there will be a fast burst of print on the screen, followed by the normal steady BPSK31 character rate. I extended this concept later to a general click buffer (and also to other modes; even the CW decoder has it) where there is a constant 20 second (the height of cocoaModem's waterfall) tape loop running all the time. When you click on the waterfall spectrogram, I collect both the horizontal position of the click (to get frequency information) and the vertical position of the click (to get time information) and use the time parameter to determine how far back in the tape loop you play back to the demodulator when you first click on the signal. With this extended click buffer, you can actually click on a signal that has stopped transmitting, and if CQ has appeared within 20 seconds of the last time you turned the knob of the rig, you can copy what he sent. I am sure it is disconcerting to the other end to get a reply to their CQ 20 seconds after they issued them, and they might attribute that to a slow operator, HI. If you watch the cursor in the waterfall in this movie of the VP2MUM RTTY operation with a K3, you can see Tom (DL2RUM) take advantage of the RTTY click buffer in his RUMped program (RUMped use cocoaModem's demodulator for digital modes) quite often to pull people after they have already stopped calling: http://dl2rum.de/rumsoft/VP2MUM_RTTY.mov The text buffer and RTTY waterfall are in the bottom right hand window. Watch his cursor :-). With a click buffer, you can get run rates to go pretty high since you seldom have to wait for a slow caller to finish identifying itself. You just jump to a different trace on the waterfall that has already finished transmitting. 73 Chen, W7AY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31 (beacons)
The bands are open more that a lot of people think, as a check of beacons can show; however, calling CQ with QRP and poor antennas will not bring much success without a lot of patience on your part. And for propagation purpose,I have running on 7107 Khz for the last 2 months my K3 as a beacon with only 5W about 18 hours a day.I have received lots of reports by email from Canada,Venezuela,Colombia and many states as well.Use it if you can hear it.73 AD4C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] kpa100 in a ec2 w kat100
http://www.kk7p.com/k2kpa100.html That was the information I used to do mine; it came out great. Just pay attention to the details and it will work fine. Mark, W5EZY __ -- View this message in context: http://elecraft.365791.n2.nabble.com/kpa100-in-a-ec2-w-kat100-tp5025952p5037414.html Sent from the [K2] 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} Help, hex key for split knob
Tim, I had a similar experience assembling #4169 a few weeks ago. Unfortunately my stack of assorted allen wrenches didn't include any that small. My work around was to grind off the stripped portion of the cheesy allen wrench each time it stripped. It only took about two hours and several wrench grindings to mount the two split knobs, which was really the only PITA encountered during the assembly. The allen wrench was much smaller when I finished. I suspect that a plain old slotted head screw would be more practical in this application due to being able to apply torque over the screw's full diameter. 73 Jack KZ5A -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of N3XX Sent: Sunday, May 09, 2010 8:45 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3} Help, hex key for split knob Hi to all, I just completed assembly of K3 #4175 a couple of weeks ago. When installing the knobs I had a problem with both sizes of allen wrench provided in the kit. For both size knobs, they would slip inside of the allen screw as it started to get tight. I don't know what the actual size should be, but ended up going into the box of allen wrenches I have saved over the years and using sizes that fit better, allowing me to tighten the screws. Sorry, I don't have the actual sizes needed, since I just found what fit better and put them back into the box after I was finished. I don't think there was actually any marking I could see anyway. 73, Tim - N3XX - Original Message - From: David Dunn vk3...@gmail.com To: elecraft@mailman.qth.net Elecraft@mailman.qth.net Sent: Sunday, May 09, 2010 4:47 AM Subject: Re: [Elecraft] [K3} Help, hex key for split knob I cannot imagine it would be hard to buy imperial measure Allen keys in USA ! Even in VK land where standards of measure are very dubious. (officially all metric) Our signposts in Kilometres, goods sold by the Kilogram, Timber by the metre, - but they still talk about 4 x 2's and 6 x 8 ft sheets of chipboard. Now, go in the ironmongers for nuts and bolts and the odds are you will find them with BSW threads,a size now very difficult to get in England where they originated! I wonder why Elecraft used inch measure Allen screws?? when all the other threads in the K3 are metric.- Perhaps they had similar problems! 73 to all from David VK3DBD On Sat, May 8, 2010 at 10:35 PM, Mike n...@nf4l.com wrote: If you can't find it at the hardware boutique, if there's a hobby shop close, try that. I'd take the knob with me. 73, Mike NF4L ab2tc wrote: Hi all, I guess Ill be heading out to the hardware store for a 0.050 or 1.27mm allen wrench tomorrow. My radio was a kit originally, but I bought it 2nd hand from the builder and may not have recieved the allen key. AB2TC - Knut N1JM wrote: If yours was a kit, you should of got one with it. However, I suspect you could get one from Elecraft. The small knobs use a .050 and the large knobs take 5/64 allen wrench. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Wishing You a Happy and Successful Dayton!
To: Elecraft Management and Staff I offer my best wishes for a successful Dayton Hamvention The new products introductions will garner a lot of interest. We already know the existing products do. Keep 'em coming! To: Elecrafters ...best wishes for a successful Dayton Hamvention If you are able, please post pictures and information and/or links. Happy Hunting! 73, Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] kpa100 in a ec2 w kat100
http://www.kk7p.com/k2kpa100.html That was the information I used to do mine; it came out great. Just pay attention to the details and it will work fine. Mark, W5EZY Here's what it looks like when done: www.N4LCD.com/k2/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Frank, There are multiple reasons you are not getting a response. While it is true PSK is only a few dB better than CW under ideal conditions, some tend to pretend PSK is magical and very low ERP will work wonders. Unfortunately very weak signals are still very weak signals. They will just be buried in the noise on the other station's display. Even if they are printable when found, no one will see you. Length of CQ is especially a factor when a signal is really weak. It's kind of like a world where everyone is equal and held to the same low level, except with 5 watts and an indoor antenna you are probably among the lowest of the equally weak signals. You just won't stand out at all. CQing is not the way to go when the signal is barely above noise. Have fun calling people, that will be the best way with an indoor antenna and 5 watts. CQing will be frustrating. 73 Tom --- On Tue, 5/11/10, Frank MacDonell kd8...@gmail.com wrote: I have a K3/10 with a 66' dipole in the attic and I am running 5 watts with incredible reach. From Detroit, I am reaching FL, WA and Ottawa. But my contacts have been when I answer a CQ. When I call CQ, I do not seem to get a call back. Any ideas? Thanks in advance. The Reflector is an incredible resource. -- Frank KD8FIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FS LP-Pan E-Mu 0202
I am selling my LP-Pan and E-Mu 0202. Asking price is $210 and I will ship USPS. Contact me off the list for details. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Stuff For Sale
I have the following item for sale: The top cover for the K2 containing a speaker, KIO2 Serial Interface, and KAT2 Antenna tuner. Comes with all manuals. Will sell complete or seperate. I built the units and they are fully tested. Looking for $225.00 plus shipping or best offer within reason. Please contact me off list. Thanks Dave KD1NA dar...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Slightly OT: K2 Sales Targeted
(I thought the readers of this reflector might get a chuckle out of the title of this article in the local newspaper yesterday. No, it's not about the draconian Radio Police: seems as how the K2 in this instance is a substance that (shall we say) is apparently being used as a mood enhancer. However, as I consider things carefully, what we associate with the term K2 could also be said to serve as a mood enhancer during construction and operation. Uh-oh) Times Record: K2 Sales Targeted http://www.swtimes.com/news/article_da8235c0-5c42-11df-88b6-001cc4c002e0.html 73, Al __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Portable Fit: K3 versus K2
I have both K2 and K3. K2 has traveled around the world and never a problem. It is my choice for CW and it is OK for noncompetitive SSB especially when conditions are good. K3 had a few issues but its excellent speech processor plus EQ makes K3 a standout in SSB TX. Not being heard is a major problem when portable. Ignacy -- View this message in context: http://elecraft.365791.n2.nabble.com/Portable-Fit-K3-versus-K2-tp5030596p5038113.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] Slightly OT: K2 Sales Targeted
K2 is actually derived from plant fertilizer... the more you know. (kids are dumb) Matt W8ESE On Tue, May 11, 2010 at 10:08 AM, Al Gulseth wb5...@centurytel.net wrote: (I thought the readers of this reflector might get a chuckle out of the title of this article in the local newspaper yesterday. No, it's not about the draconian Radio Police: seems as how the K2 in this instance is a substance that (shall we say) is apparently being used as a mood enhancer. However, as I consider things carefully, what we associate with the term K2 could also be said to serve as a mood enhancer during construction and operation. Uh-oh) Times Record: K2 Sales Targeted http://www.swtimes.com/news/article_da8235c0-5c42-11df-88b6-001cc4c002e0.html 73, Al __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Slightly OT: K2 Sales Targeted
Isn't it also a mountain some find too hard to climb? Sorry for the play on words...I just couldn't help myself..(:-)) Gary On Wed, May 12, 2010 at 6:40 AM, Matt Palmer kd8...@gmail.com wrote: K2 is actually derived from plant fertilizer... the more you know. (kids are dumb) Matt W8ESE On Tue, May 11, 2010 at 10:08 AM, Al Gulseth wb5...@centurytel.net wrote: (I thought the readers of this reflector might get a chuckle out of the title of this article in the local newspaper yesterday. No, it's not about the draconian Radio Police: seems as how the K2 in this instance is a substance that (shall we say) is apparently being used as a mood enhancer. However, as I consider things carefully, what we associate with the term K2 could also be said to serve as a mood enhancer during construction and operation. Uh-oh) Times Record: K2 Sales Targeted http://www.swtimes.com/news/article_da8235c0-5c42-11df-88b6-001cc4c002e0.html 73, Al __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 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
[Elecraft] K2/KPA100
I have started to experience low power on 12 and 10 meters with my KPA100. I get 65 watts on 12 meters with a good SWR (1:1) and 35 on 10 meters with a good SWR (1:1). I initially thought of the low pass filters in the KPA100 but the schematic shows that this would affect 15 meters as well, and 15 meters give out a good 100 watts. The K2 alone into a dummy load is good: 12-14 watts on all bands, except with 10 watts on 12 meters and 8 watts on 10 meters; which if I remember right is correct. Any advice will be appreciated. Larry (G0IKE) K2 - 2424 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Dayton Elecraft Booth Help
If you have the urge to meet other Elecraft owners or to espouse to potential owners at Dayton, please email me or stop by the booth at the show and we'll sign you up! (We are at booths 196, 197, 198.) Wayne and I are grateful for any help we can get to save our voices from total collapse ;-) Even an hour or two is a big help. Plus you get to hang out with and meet lots of Elecraft folks, both customers and members of our engineering team. In addition to Wayne and myself, we'll have the following Elecraft engineers at the booth: Brian, W6FVI (W2 Design, P3 project mgr.) Dick, K6KR (K3 Utility) Alan, N1AL (P3 Designer) Lyle, KK7P (K3 DSP, K2 DSP etc.) Hope to see you all there! 73, Eric WA6HHQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Slightly OT: K2 Sales Targeted
And a UK telephone box of the 1930's David G3UNA Isn't it also a mountain some find too hard to climb? Sorry for the play on words...I just couldn't help myself..(:-)) Gary On Wed, May 12, 2010 at 6:40 AM, Matt Palmer kd8...@gmail.com wrote: K2 is actually derived from plant fertilizer... the more you know. (kids are dumb) Matt W8ESE On Tue, May 11, 2010 at 10:08 AM, Al Gulseth wb5...@centurytel.net wrote: (I thought the readers of this reflector might get a chuckle out of the title of this article in the local newspaper yesterday. No, it's not about the draconian Radio Police: seems as how the K2 in this instance is a substance that (shall we say) is apparently being used as a mood enhancer. However, as I consider things carefully, what we associate with the term K2 could also be said to serve as a mood enhancer during construction and operation. Uh-oh) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Calling CQ on PSK-31
Phil Hystad-3 wrote: On May 11, 2010, at 9:14 AM, Jon Perelstein wrote: Just because I can see it on the waterfall doesn't mean that I have any idea if it's a CQ or not. And if it's a short CQ, by the time I click over to it, it's gone. Which is a good reason to buy an Apple Mac and help to increase my AAPL stock value even more... The CocoaModem digital interface application that runs only on the Mac has a very nifty feature. Even if a waterfall trace of a message is over, as long as it is in the displayed buffer you can click on it and see the text of that stream for the amount of the buffer contents that is retained. The built in PSK31 modem in KComm for Windows can do that as well. (Actually it is a feature of the PSK31 DLL by AE4JY and not anything clever I did.) KComm also has a PSK Browser that decodes all the signals in the passband (and reports them to PSK Reporter if you want to do that.) Of course that doesn't help get other people answer *your* CQs. Perhaps an increasing use of PSK Browsers means that people don't tend to bother with weak stations that aren't DX? Adding QRP (but please not /QRP) to your CQ calls might help a bit. I ran just 4W of PSK31 and an attic antenna for many years with my QRP K2 with quite a bit of success. But there were more sunspots around at the time. I admit that frustration with conditions over the last couple of years was why I got the 100W PA for my K3 (not being able to do anything about the antennas.) It made a heck of a difference to my success rate. No problem getting replies to my CQs now. If you must run QRP then as others have suggested, replying to other people's CQs is really the way to go. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/Subject-Re-Calling-CQ-on-PSK-31-tp5036866p5038387.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3} Help, hex key for split knob
My experiences are different. For small knobs you need to use high quality wrenches. Those .050 do work if you have a good one. It's amazing how much twist you can put in a high quality Allen wrench while trying to deal with a stubborn screw. The next thing is to make sure that you have them inserted all the way into the set screw. That sometimes takes a bit of wiggling and pushing. Unfortunately, there is the possibility of a damaged screw if it wasn't done right before. As an old-timer I dealt with many a slotted set screw. Nothing but headaches. Good small bladed screwdrivers are much harder to find than good small Allen wrenches. My favorite is the Bristol (splined) design. http://www.bristolwrench.com/ Collins used them a lot. Every now and then I think about replacing all my radio setscrews with Bristol style but have not yet found a reasonable source for them. David K0LUM At 1:25 PM -0500 5/11/10, Jack Brabham wrote: Tim, I had a similar experience assembling #4169 a few weeks ago. Unfortunately my stack of assorted allen wrenches didn't include any that small. My work around was to grind off the stripped portion of the cheesy allen wrench each time it stripped. It only took about two hours and several wrench grindings to mount the two split knobs, which was really the only PITA encountered during the assembly. The allen wrench was much smaller when I finished. I suspect that a plain old slotted head screw would be more practical in this application due to being able to apply torque over the screw's full diameter. 73 Jack KZ5A -- Education should be an accumulation of understanding, not just an accumulation of facts. Dr. David M. Pozar __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Callin CQ on PSK-31
IMHO, that's how it works in the QRP world, regardless of mode. You would probably find it more difficult with CW than PSK-31, and even more difficult yet, with SSB! That's based on experience. If it's at all possible, work on improving your antenna situation. Your equipment is already the best! GL, de Bert, N4CW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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} Help, hex key for split knob
Jack, If you stripped out the allen wrench, you were applying more force than is necessary, and excessive force may be the reason some of the newer knobs are cracking (that is just a guess). 73, Don W3FPR Jack Brabham wrote: Tim, I had a similar experience assembling #4169 a few weeks ago. Unfortunately my stack of assorted allen wrenches didn't include any that small. My work around was to grind off the stripped portion of the cheesy allen wrench each time it stripped. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Subject: Re: Calling CQ on PSK-31
Exactly, as well as support Chen so he'll write more cool apps for us, hi hi. Everyone beat me to it tho, I was also going to say cocoaModem's click buffer works FB. There's also a table mode in cocoaModem that'll decode multiple streams in the audio bandpass (which I've seen in others like Digipan, I believe). You can also double-click on the streams and the demodulator goes directly to it in the waterfall instantly switching you to that freq. Very nice! 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/Subject-Re-Calling-CQ-on-PSK-31-tp5036866p5038708.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] where's AC7AC been???
Haven't seen a post from him since around the first of the year. Any info out there, pls? Dave, N3HE -- View this message in context: http://elecraft.365791.n2.nabble.com/where-s-AC7AC-been-tp5038719p5038719.html Sent from the [OT] 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] Subject: Re: Calling CQ on PSK-31
In addition to having fldigi decode the last few seconds of a qso you left click and move you, you can also right click on another QSO in fldigi and it will display the last few seconds in purple. Finally, you can set up fldigi so that it puts clickable frequency markers in the receive buffer so you can go back to a previous frequency you've left clicked on. (I had a hand in designing these features and in some of the implementation.) Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/Subject-Re-Calling-CQ-on-PSK-31-tp5036866p5038799.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3} Help, hex key for split knob
Knowing the problem we had on assembly lines with small screws... :-) 73 Tom - Original Message - From: Don Wilhelm w3...@embarqmail.com To: Jack Brabham k...@att.net Cc: 'elecraft@mailman.qth.net' Elecraft@mailman.qth.net Sent: Tuesday, May 11, 2010 6:38 PM Subject: Re: [Elecraft] [K3} Help, hex key for split knob Jack, If you stripped out the allen wrench, you were applying more force than is necessary, and excessive force may be the reason some of the newer knobs are cracking (that is just a guess). 73, Don W3FPR Jack Brabham wrote: Tim, I had a similar experience assembling #4169 a few weeks ago. Unfortunately my stack of assorted allen wrenches didn't include any that small. My work around was to grind off the stripped portion of the cheesy allen wrench each time it stripped. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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} Help, hex key for split knob
My experiences are different. For small knobs you need to use high quality wrenches. Those .050 do work if you have a good one. It's amazing how much twist you can put in a high quality Allen wrench while trying to deal with a stubborn screw. I would not ever force the screw. That is just asking for problems. Off the shaft and on the table, run it in until it resists turning and then back out. Do that several times cleaning the threads out. As an old-timer I dealt with many a slotted set screw. Nothing but headaches. No truer words were ever spoken!!! The last thing I would want is phillips, and then second last would be slotted screws. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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} Help, hex key for split knob
My personal rule for torque-wrenching small allen screws (once I know threads are clear) is pinky pressure. I turn the allen wrench until it *just barely* runs into resistance. Then I put my pinky on the wrench and let some of the weight of my forearm (no pushing) tighten it up. Should not ever be stripping allen wrenches in K3 RF/AF knobs. The replacement knobs I got for the flawed early batch that came with my K3 have been just fine. 73, Guy. On Tue, May 11, 2010 at 8:21 PM, Tom W8JI w...@w8ji.com wrote: My experiences are different. For small knobs you need to use high quality wrenches. Those .050 do work if you have a good one. It's amazing how much twist you can put in a high quality Allen wrench while trying to deal with a stubborn screw. I would not ever force the screw. That is just asking for problems. Off the shaft and on the table, run it in until it resists turning and then back out. Do that several times cleaning the threads out. As an old-timer I dealt with many a slotted set screw. Nothing but headaches. No truer words were ever spoken!!! The last thing I would want is phillips, and then second last would be slotted screws. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AM TX - Questions and Observations
Thanks for the reply Tom - your information is appreciated. I have been to your website a few times but I hadn't visited the AM page before. Lots of good information there. I had to read it a few times to take it all in. I have done some more research and it appears the K3 TX has a quite sophisticated, multiple loop ALC system. This is probably the reason it currently cannot be modulated in excess of 100% positive. Maybe there will be an update in the future? Andy VK4KY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-AM-TX-Questions-and-Observations-tp5033894p5039154.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3/10 to K3/100 Conversion Project
Yesterday, I received a KPA3 100 Watt PA kit for my K3/10. Less than an hour later my K3 was sending CW at 100 Watts (into a dummy load, unfortunately, since my shack is 50+ miles way from my lab at work). I now have a fully functional K3/100 that still does QRP with ease. The installation was extremely simple. There were absolutely no problems from start to finish. I'm quite pleased with the quality of Elecraft products and their straight forward documentation. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] WANTED: K3
Looking for a K3 in excellent condition. Please include postage to Australia in price. Payment by Paypal. Eddie VK4AN. See QRZ.com for info about me. Have lots of US ham friends that can vouch for me. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Dayton
I'm leaving for Chicago in the morning, and will be off email until I return. My Chicago buddies are monitoring 442.625, 114.8 Hz, so I will too. I hope to see many friends there. One of my hangs will probably be the CWOps booth. 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] K3 AM TX - Questions and Observations
Andy, This is probably the reason it currently cannot be modulated in excess of 100% positive. Maybe there will be an update in the future? You do not want more than 100% positive modulation with the K3. If one assumes 25W of carrier, 100% positive modulation represents 100W peak power ... modulation greater than 100% positive would result in limiting/compression in the final amplifier with its attendant distortion. To obtain greater than 100% positive modulation (particularly in a low level modulation with linear amplifier situation), the final amplifier must be capable of PEP greater than four times the carrier power. The only way the K3 could support more than 100% positive modulation is if the carrier power were reduced and that would be rather self defeating. 73, ... Joe, W4TV On 5/11/2010 9:27 PM, Andy Wood wrote: Thanks for the reply Tom - your information is appreciated. I have been to your website a few times but I hadn't visited the AM page before. Lots of good information there. I had to read it a few times to take it all in. I have done some more research and it appears the K3 TX has a quite sophisticated, multiple loop ALC system. This is probably the reason it currently cannot be modulated in excess of 100% positive. Maybe there will be an update in the future? Andy VK4KY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/KPA100
On May 11, 2010, at 4:56 PM, Larry Dodson wrote: I have started to experience low power on 12 and 10 meters with my KPA100. I get 65 watts on 12 meters with a good SWR (1:1) and 35 on 10 meters with a good SWR (1:1). I initially thought of the low pass filters in the KPA100 but the schematic shows that this would affect 15 meters as well, and 15 meters give out a good 100 watts. The K2 alone into a dummy load is good: 12-14 watts on all bands, except with 10 watts on 12 meters and 8 watts on 10 meters; which if I remember right is correct. Any advice will be appreciated. The K2 ought to be able to put out a solid 10 watts on 10m, and at least 12 watts on 12m with no problem. I would check the archives for troubleshooting low output on 12/10m. There are some build details having to do with the transmit transformers that may need to be followed to get full output on 10m. The KPA100 should have more than enough gain on 10m to produce a full 100 watts. My K2/100 can barely make 10 watts across the whole 10m band with the KPA100 disabled, but has no problem producing 100 watts with the KPA100 enabled. I would start with the low output on the base K2, and work from there, Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 AM TX - Questions and Observations
Hi Joe, Yes, you are correct and I understand what you are saying. However, reduced carrier power from the K3 TX is not an issue if driving an external amplifier to, say, 100 watts carrier. In this case, output from the K3 may be only 10 watts carrier (40w peak), leaving plenty of overhead to accommodate an increase in positive modulation well beyond 100%. Andy VK4KY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-AM-TX-Questions-and-Observations-tp5033894p5039377.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 AM TX - Questions and Observations
In AM analog broadcast, asymmetrical modulation is standard fare. http://www.vorsis.com/pdfnfoto/Vorsis%20AM10%20InkJet%20090722.pdf Output specs on page 7. 73 de na6m On 5/11/2010 10:08 PM, Andy Wood wrote: Hi Joe, Yes, you are correct and I understand what you are saying. However, reduced carrier power from the K3 TX is not an issue if driving an external amplifier to, say, 100 watts carrier. In this case, output from the K3 may be only 10 watts carrier (40w peak), leaving plenty of overhead to accommodate an increase in positive modulation well beyond 100%. Andy VK4KY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AM TX - Questions and Observations
Gee, that is a nice toy Mark. I wonder how many K3's you could buy for the price of one of those units Andy VK4KY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-AM-TX-Questions-and-Observations-tp5033894p5039455.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
