Re: [Elecraft] Kit arrived...
Brett Do not hurry but enjoy !!! Happy user of K2/K1/KX1 73 de aki, ja1nlx [EMAIL PROTECTED] http://www.asahi-net.or.jp/~yy7a-ysd/ http://ja1nlx.exblog.jp/ - Original Message - From: Brett gazdzinski [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 2:16 PM Subject: RE: [Elecraft] Kit arrived... My K2 kit arrived yesterday, very fast shipping to New Jersey! I built the control board in a few hours, seems easy to build as long as you have a magnifier to read those little numbers on the parts! The manual is very well done and printed, I like this kit! Brett N2DTS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] UK - PSU and Amp
My K2 has just got to the 7 MHz receive stage so can't really comment yet but I have used both the Watson Power Mite and the Watson W25 SM extensively in wanderings portable round Africa and both performed well. I checked them both for spurious noise and drew a blank - use them at full cable stretch and with a filtered lead. They seemed OK on both IC7000 and FT857 and I checked out the Power Mite particularly carefully for noise on my main rig as I was rather suspicious of something so small! The W25SM (and relatives) got a good review in Radcom not long ago in this respect,. 73 Nick G3RWF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 Filter settings
Thrilled to get my K2 working on 7 MHz receive but I seem to have a problem with filter settings. Everything has checked out according to the book - no problems at all (even my home-wound coils seem to work!!) I have set up the filters exactly according to pages 88 and 89. On Filter 1 the rx sounds great - plenty of gain, clean signals. On the other 3 filters it sounds like I am listening through a dense fog - I can tell the bandwidth is far narrower than F1 but signals are weak and it sounds as if the filters are overlapping each other (if you know what I mean). I have checked settings again and all look OK. Does anyone recognise this problem please? I am reluctant to proceed until I have sorted it out. 73 Nick G3RWF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna Analyser - Phase Angle Sensor
I fancied doing this for my screwdriver antenna but I thought I could do something similar without actually detecting polarity: simply, if I guess wrong the SWR will go the wrong way and I just have to reverse the switch; which could be done automatically. I'd like to see the article to avoid the extra step. 73 David G3UNA From: J F [EMAIL PROTECTED] Date: 2007/03/16 Fri PM 12:02:58 GMT To: [EMAIL PROTECTED], Elecraft Discussion List elecraft@mailman.qth.net Subject: [Elecraft] Antenna Analyser - Phase Angle Sensor Stuart, In the old Ham Radio Magazine, a 1988/89 issue there is a very simple circuit called a PHASOMETER by the author. It uses as zero center meter (although you could set up LEDs to perform the same way) to determine which side of resonance your antenna on. The specific purpose for this unit was for determining which way to skew your inductor to tune your mobile antenna. The author was going to incorporate it with an earlier motor driven inductor. He also suggested it as a tool for vision impaired folks. I thought that it would be useful for increasing bandwidth tuning for a low band antenna. If you're interested, I can find the article when I am back home sunday and make a copy. I have the article for the mobile tuner as well. Cheers, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Antenna Analyser - Phase Angle Sensor
Folks, There is an error in the reply I sent last night (below) that is very important - it makes a big difference. When increasing or decreasing the frequency to determine the sign of the reactance: One must observe the increasing or decreasing of the IMPEDANCE (Z) and not just the reactance. I had erroneously stated the reactance, and Larry helped get my mind straightened out - make that impedance instead of reactance and it will be correct. In other words, when using an MFJ259B - look at the Z value when increasing or decreasing the frequency, and not the X value. The notes in the MFJ259B manual recommending how to determine the sign of the reactance are placed under the instructions for measuring Capacitance and Inductance, and they do state that one can look at the reactance value. While that works fine for a pure reactance, it does not work for complex impedances, where one must look at the magnitude of the IMPEDANCE (Z). In other words, switch the MFJ259B to IMPEDANCE MODE and do the 'frequency increase/decrease thing' before attempting to affix a sign to the value of the reactance parameter. 73, Don W3FPR -Original Message- Larry, I see no inconsistency with Stuart's statement in your plot. Without looking at the specific phase angle - if the absolute magnitude of the reactance increases with increasing frequency, then the load is inductive, it it decreases, then the load is capacitive. The poles of the black curve on your plot do line up with the zero crossings for the phase. So if I look at any point on your plot, I see that the absolute value of the magnitude of the reactance will increase with increasing frequency anytime the load has positive reactance (inductance), and the absolute magnitude of the reactance will decrease with increasing frequency any time the load is capacitive. Yes, a simple (or complex) phase angle detector working without regard for the sign will not provide the information required, but 'dithering' the frequency and looking only at the relative magnitude of the reactance between 'dither' points can provide the sign of the reactance. 73, Don W3FPR -Original Message- That won't work, Stuart. I wrestled with this for awhile when developing my LP-100 Plot program. You also need to know which side of resonance you're on, and whether it's a series or parallel resonance... at a minimum. Take a look at the plot at www.telepostinc.com/Files/OCF_Z_PH2.jpg. This is a section of an off center fed dipole as measured by my HP 87510A VNA. If you take the absolute value of the phase data (ie, have it bounce off zero as it would with a meter that can't determine phase sign), then you will see the problem. If you look at the phase in this plot, starting at the left edge, and remembering that all the negative values have to be reversed to look like a meter without sign detection, by your definition, the reactance makes the following changes from left to right edge... C, L, C, L, C, L, C, L In reality, as the VNA shows, there are fewer changes. The sequence is... C, L, C, L, C Without the visual aid, it can be confusing, to say the least. In my Plot software, I take into account a number of factors, based on the slopes of the magnitude and phase of impedance. If you don't do this, you could easily be exactly wrong ;-) 73, Larry N8LP Stuart Rohre wrote: It is not too simple to measure phase with a additional circuitry. However, it is simple to move the frequency of the antenna analyzer and see the Reactance change, IF it is increasing with frequency it is inductive reactance, (+); if decreasing with frequency increase, it is capacitive reactance, (-). Once you get used to that, and make a little reminder note to paste on the analyzer case, you can do the check easily and remember which type of reactance change you are seeing re frequency. Stuart K5KVH -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.11/723 - Release Date: 3/15/2007 11:27 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.11/723 - Release Date: 3/15/2007 11:27 AM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.11/723 - Release Date: 3/15/2007 11:27 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list.
Re: [Elecraft] Antenna Analyser - Phase Angle Sensor
Thanks for the clarification, Don. As I mentioned in my private email, to eliminate all ambiguity, you really need to look at the slopes of both impedance magnitude and phase (or alternatively resistance and reactance). This will cover you for both sides of either series or parallel resonance. This is what I do with my Plot software. You could certainly do it in your head, but it's little much to remember. If you have an analyzer, like the MFJ, which displays both R and X, it might make sense to print a little what if... sequence on a laminated card and tape it to the back of the unit to help with going through the scenarios when calculating sign. Based on my algorithm, I could print up a sample for anyone interested. Or you could use the two plots I referenced in this discussion to make your own. Remember though, that my plots show correct sign, and you have to reverse all the negative values to arrive at the correct input data for an analyzer that doesn't show sign. 73, Larry N8LP Don Wilhelm wrote: Folks, There is an error in the reply I sent last night (below) that is very important - it makes a big difference. When increasing or decreasing the frequency to determine the sign of the reactance: One must observe the increasing or decreasing of the IMPEDANCE (Z) and not just the reactance. I had erroneously stated the reactance, and Larry helped get my mind straightened out - make that impedance instead of reactance and it will be correct. In other words, when using an MFJ259B - look at the Z value when increasing or decreasing the frequency, and not the X value. The notes in the MFJ259B manual recommending how to determine the sign of the reactance are placed under the instructions for measuring Capacitance and Inductance, and they do state that one can look at the reactance value. While that works fine for a pure reactance, it does not work for complex impedances, where one must look at the magnitude of the IMPEDANCE (Z). In other words, switch the MFJ259B to IMPEDANCE MODE and do the 'frequency increase/decrease thing' before attempting to affix a sign to the value of the reactance parameter. 73, Don W3FPR -Original Message- Larry, I see no inconsistency with Stuart's statement in your plot. Without looking at the specific phase angle - if the absolute magnitude of the reactance increases with increasing frequency, then the load is inductive, it it decreases, then the load is capacitive. The poles of the black curve on your plot do line up with the zero crossings for the phase. So if I look at any point on your plot, I see that the absolute value of the magnitude of the reactance will increase with increasing frequency anytime the load has positive reactance (inductance), and the absolute magnitude of the reactance will decrease with increasing frequency any time the load is capacitive. Yes, a simple (or complex) phase angle detector working without regard for the sign will not provide the information required, but 'dithering' the frequency and looking only at the relative magnitude of the reactance between 'dither' points can provide the sign of the reactance. 73, Don W3FPR -Original Message- That won't work, Stuart. I wrestled with this for awhile when developing my LP-100 Plot program. You also need to know which side of resonance you're on, and whether it's a series or parallel resonance... at a minimum. Take a look at the plot at www.telepostinc.com/Files/OCF_Z_PH2.jpg. This is a section of an off center fed dipole as measured by my HP 87510A VNA. If you take the absolute value of the phase data (ie, have it bounce off zero as it would with a meter that can't determine phase sign), then you will see the problem. If you look at the phase in this plot, starting at the left edge, and remembering that all the negative values have to be reversed to look like a meter without sign detection, by your definition, the reactance makes the following changes from left to right edge... C, L, C, L, C, L, C, L In reality, as the VNA shows, there are fewer changes. The sequence is... C, L, C, L, C Without the visual aid, it can be confusing, to say the least. In my Plot software, I take into account a number of factors, based on the slopes of the magnitude and phase of impedance. If you don't do this, you could easily be exactly wrong ;-) 73, Larry N8LP Stuart Rohre wrote: It is not too simple to measure phase with a additional circuitry. However, it is simple to move the frequency of the antenna analyzer and see the Reactance change, IF it is increasing with frequency it is inductive reactance, (+); if decreasing with frequency increase, it is capacitive reactance, (-). Once you get used to that, and make a little reminder note to paste on the analyzer case, you can do the check easily and remember which type of reactance change you are seeing re frequency.
[Elecraft] K2 Filter settings - More
And the Spectrogram marker you've set to your preferred CW note (offset) will enable you to center the passbands on that frequency 73! Ken Kopp - K0PP [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna Analyser - Phase Angle Sensor
Don Wilhelm wrote: Folks, There is an error in the reply I sent last night (below) that is very important - it makes a big difference. When increasing or decreasing the frequency to determine the sign of the reactance: One must observe the increasing or decreasing of the IMPEDANCE (Z) and not just the reactance. You can note in Larry's VNA data that |Z| has four inflection points and that phase = 0 at each inflection point. i.e., if d|z|/df = 0 where f is frequency and the d symbols refer to differentiation there must be a phase zero, which can be seen to be true, since only an impedance with a net zero reactive component will have no change in impedance with frequency. This is one of the three definitions of parallel resonance. The interested reader can find the other two definitions in Terman's Radio Engineer's Handbook, amongst other places. Jack www.cliftonlaboratories.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 - How good on SSB?
Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Filter settings
I'll be the third to chime in on how useful the spectrogram method of aligning filters is. The first time around (without spectogram) I noticed similar results as you did, then I did the spectrogram alignment and it got *much* better, but it still wasn't right. Third time, it got even better. I'll be doing it again this weekend I think, it's somewhat of an art but it's also gratifying to see how much of a change it really can make. As Don said, you can do this anytime, no cause for concern at this point. 73, Jeff N6GQ On 3/16/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Nick, I wholeheartedly second this. I followed the manual and noticed the same thing you did. When I hooked up Spectrogram I could clearly see that the narrower filters were off center. I adjusted while watching the Spectrogram screen and things sound *much* better. Craig AC6NN -- Original message -- From: Don Wilhelm [EMAIL PROTECTED] Nick, Sometimes the filters (particularly the narrower ones) do not respond well to the initial numbers in the manual because the filter center may be shifted a bit due to the particular set of matched crystals supplied. I don't think you have a problem. There is a solution, and that is called 'Spectrogram', which will provide a visual display of the filter shape and positioning on a computer screen. Download the last freeware version (5.17) of Spectrogram from www.n0ss.net and look at the instructions for using it on Tom's website or the Builder's Resource page of the Elecraft website. You could let the filter alignemnt wait until you have the rest of the K2 built and the KSB2 (if you added that) installed and then you can do a complete dial calibration and filter alignment. Instructions for doing that are on my website http://w3fpr.qrpradio.com 73, Don W3FPR -Original Message- Thrilled to get my K2 working on 7 MHz receive but I seem to have a problem with filter settings. Everything has checked out according to the book - no problems at all (even my home-wound coils seem to work!!) I have set up the filters exactly according to pages 88 and 89. On Filter 1 the rx sounds great - plenty of gain, clean signals. On the other 3 filters it sounds like I am listening through a dense fog - I can tell the bandwidth is far narrower than F1 but signals are weak and it sounds as if the filters are overlapping each other (if you know what I mean). I have checked settings again and all look OK. Does anyone recognise this problem please? I am reluctant to proceed until I have sorted it out. 73 Nick G3RWF -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.11/723 - Release Date: 3/15/2007 11:27 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
Hi Fred I run my K2 at 5w all the time as a QRP station. I enter many of the major contests and have a great time. You do need to be a bit thick-skinned, though, as you will often be walked on by higher power stations that just don't hear you. Or they call the station you are calling at the same time, and just outshout your signal. But a little persistence pays off and you can get your QSO eventually. Like most everything else we do in radio, the antenna will have a bigger effect on your success than the rig. If you have a decent antenna, you can have a ball. Good luck and 73 Bob N6WG - Original Message - From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 7:35 AM Subject: [Elecraft] K2 - How good on SSB? Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
Very interesting question. When sunspots were good, i never hesitated even on 20m (unless there was a huge pile-up) to speak into the mic of my QRP K2. It rewarded me with lots of QSOs (using a vertical antenna). Recently I decided to check out its IF filtering across busy bands in the ARRL DX SSB contest. The narrower settings on the main board filter did do a good job of reducing QRM, as it improved with each toggle from 2 to 1.8 to 1.6 settings. Things I don't know are: (1) How well the K2 shape factors of the main board filter compare to typical 1.8 kHz accessory filters in higher end rigs. Note these typically have a wide ~ 2.4 kHz or wider stock filter and a single selectable narrow filter. (2) How well the K2 speech processor works in comparison to other rigs. I have no reason to discern any limitations for these - i just don't have any information other than casual use. At one time I thought that not having passband tuning (IF shift) was a 'big limitation.' But now I realize its only a big factor on SSB when your filters is wider than needed (as is on many lower end HF rigs). Some folk have set their SSB filter up to be a quasi-IF shift by having one oriented down and one oriented up on say a 1.8 kHz BW -- but I can't say this is the best use of the 4 available settings. (Gee - I know the enterprise would appreciate you buying a second K2, but you can only do one mode at once. No reason why your existing K2 can't be a CW QRP machine, a SSB machine, and by flipping the lid also a 100w multimode rig. ) 73, curt - Original Message From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 11:35:05 AM Subject: [Elecraft] K2 - How good on SSB? Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Get your own web address. Have a HUGE year through Yahoo! Small Business. http://smallbusiness.yahoo.com/domains/?p=BESTDEAL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Filter settings
Nick you did not say if you are receiving CW or SSB (i presume likely SSB since it is more BW dependant in fidelity). if you dont have the SSB adaptor installed, all the filters may be a little bit narrower than many HF rigs. when/if you add this board you will have an even higher fidelity SSB receive signal. if you get some decrease in intelligiability with narrower BW, no reason for alarm yet. I suggest also listening to both USB and LSB to see if you hear a difference. do download spectrogram and the application note at the Elecraft site (and/or use instructions at other's websites). it takes just an audio cable from your K2 audion output into your PC soundcard. software settings may take some patience to get them set up, but you will be rewarded by 'seeing' your filters. and for fun you will likely check out your other rigs! enjoy your K2 build! 73, curt - Original Message From: Nick Henwood [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 6:20:04 AM Subject: [Elecraft] K2 Filter settings Thrilled to get my K2 working on 7 MHz receive but I seem to have a problem with filter settings. Everything has checked out according to the book - no problems at all (even my home-wound coils seem to work!!) I have set up the filters exactly according to pages 88 and 89. On Filter 1 the rx sounds great - plenty of gain, clean signals. On the other 3 filters it sounds like I am listening through a dense fog - I can tell the bandwidth is far narrower than F1 but signals are weak and it sounds as if the filters are overlapping each other (if you know what I mean). I have checked settings again and all look OK. Does anyone recognise this problem please? I am reluctant to proceed until I have sorted it out. 73 Nick G3RWF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Now that's room service! Choose from over 150,000 hotels in 45,000 destinations on Yahoo! Travel to find your fit. http://farechase.yahoo.com/promo-generic-14795097 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
Ran my K2 barefoot on SSB and CW for about a year before getting around to building the KPA100 amplifier, was having too much fun jousting with the big boys over 'Outside of Europe' DX on 40m. K2 earned its keep on SSB and the old story is true, it's the antenna's performance that counts. 73, Geoff GM4ESD Fred N3CSY wrote: Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Fwd: Re: [Elecraft] K2 - How good on SSB?]
Original Message Subject: Re: [Elecraft] K2 - How good on SSB? Date: Fri, 16 Mar 2007 12:05:31 -0500 From: RC kc5wa [EMAIL PROTECTED] To: Curt Milton [EMAIL PROTECTED] References: [EMAIL PROTECTED] Curt Using my K2 #4948 @ qrp ssb 9watts I worked 42 of 50 states on 80/75 meters. The microphone used was 600 ohm impedance RS Highball II. Antennas used an 5btv and dipole at 12' bent around an urban lot. Difficult but doable. YMMV RC kc5wa Curt Milton wrote: Very interesting question. When sunspots were good, i never hesitated even on 20m (unless there was a huge pile-up) to speak into the mic of my QRP K2. It rewarded me with lots of QSOs (using a vertical antenna). Recently I decided to check out its IF filtering across busy bands in the ARRL DX SSB contest. The narrower settings on the main board filter did do a good job of reducing QRM, as it improved with each toggle from 2 to 1.8 to 1.6 settings. Things I don't know are: (1) How well the K2 shape factors of the main board filter compare to typical 1.8 kHz accessory filters in higher end rigs. Note these typically have a wide ~ 2.4 kHz or wider stock filter and a single selectable narrow filter. (2) How well the K2 speech processor works in comparison to other rigs. I have no reason to discern any limitations for these - i just don't have any information other than casual use. At one time I thought that not having passband tuning (IF shift) was a 'big limitation.' But now I realize its only a big factor on SSB when your filters is wider than needed (as is on many lower end HF rigs). Some folk have set their SSB filter up to be a quasi-IF shift by having one oriented down and one oriented up on say a 1.8 kHz BW -- but I can't say this is the best use of the 4 available settings. (Gee - I know the enterprise would appreciate you buying a second K2, but you can only do one mode at once. No reason why your existing K2 can't be a CW QRP machine, a SSB machine, and by flipping the lid also a 100w multimode rig. ) 73, curt - Original Message From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 11:35:05 AM Subject: [Elecraft] K2 - How good on SSB? Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Get your own web address. Have a HUGE year through Yahoo! Small Business. http://smallbusiness.yahoo.com/domains/?p=BESTDEAL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 - How good on SSB?
Then there's my experience. I ran the barefoot K2 in one of the big SSB contests this past fall (Nov SS?). I got buried. In the CW contest, I easily worked 50 people. With the same effort in SSB, I worked maybe 15 and several of them were really struggling to copy. That was on 40 meters with a 32' vertical. I put in the KPA100 and things are easier now. - Keith N1AS - - K2 5411.ssb.100 - -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Geoffrey Mackenzie-Kennedy Sent: Friday, March 16, 2007 12:53 PM To: Fred (FL) Cc: Elecraft Discussion List Subject: Re: [Elecraft] K2 - How good on SSB? Ran my K2 barefoot on SSB and CW for about a year before getting around to building the KPA100 amplifier, was having too much fun jousting with the big boys over 'Outside of Europe' DX on 40m. K2 earned its keep on SSB and the old story is true, it's the antenna's performance that counts. 73, Geoff GM4ESD Fred N3CSY wrote: Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 Pre-amp and att
Seem to have a problem. Most gain is with no pre-amp (sounds fine). Some attenuation with att on and more attenuation with pre-amp on. Have checked out T6 - seems soldered OK. Any thoughts please? Many thanks to those who responded to my filter post - very helpful indeed. 73 Nick G3RWF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] DX Doubler
I'm looking at buying a DX Doubler and am wondering if the Kenwood cables will work on a K2. The web site doesn't mention K2s. Any help will be appreciated. Thanks es 73, Randy, K7TQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
I have made more than 1000 QSOs (85 DXCCs so far) using QRP K2 and have always got excellent reports, using a simple inverted vee dipole antenna ONLY. It is true I have missed a few DXCC entities like Aghanistan, Korea, Jibouti and South Africa because I could not get over the pileup of big guns, but these are about all that I have missed. If you are patient enough, you eventually get through. So I never bothered to use a PA. 73! de TA2RX Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY Bekir Kemal Ataman, Ph. D. Assoc. Prof. of Archives, Records and Information Management Marmara University, Faculty of Engineering Department of Industrial Engineering Goztepe, Istanbul, Turkiye Tel: +90-216-348-0292 Ext. 225 ArchiMac BBS Sysop Webmaster http://www.archimac.org/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 Pre-amp and att
Nick, Are your getting voltage to the collector of Q21 (measure on the case - 11 to 12 volts)? If you have no voltage there, check T6 again and R74. Be certain the leads of T6 are the correct color - leads 1 and 3 must be of the same color. If all is well above, then check R75, R76, R77 for correct values, check them for good soldering and check the soldering at the leads of Q21. Also check R72 and R73 as well as C142. If exerything there checks out, then the relay is next to check - turn the K2 on and set the preamp on. Then turn the K2 off and check continuity with your ohmmeter between K17 pins 3 and 4 plus pins 7 and 8. If all checks are good so far, the preamp should work. 73, Don W3FPR -Original Message- Seem to have a problem. Most gain is with no pre-amp (sounds fine). Some attenuation with att on and more attenuation with pre-amp on. Have checked out T6 - seems soldered OK. Any thoughts please? Many thanks to those who responded to my filter post - very helpful indeed. 73 Nick G3RWF -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date: 3/16/2007 12:12 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
SSB ... No problem..
I got my K2 in the middle of 2001, KPA100 in late 2002,
now mostly use SSB and 100W, (after mars 2005 sometimes 1kW)
Antennas dipole, vertical
Results:
QSO's: 6181 From {17 Feb 2001} to {11 Mar 2007}
Countries: 219, SSB: 208, CW: 123
Now I use the 2.4kHz SSB filter,
No problem using qrp, 15w during the first years, specially on the high
bands. Now as we are in the bottom of the sunspot cycle,
I have to use the kW linear, specially on 40 and 80
73, Matti
--
Marteinn SverrissonTF3MA
Langitangi 2Internet: tf3ma [at] raunvis [dot] hi [dot] is
270 Mosfellsbær http://www.raunvis.hi.is/~tf3ma
Iceland
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Re: [Elecraft] Antenna Analyser - Phase Angle Sensor
I did not mention that obviously, one has to watch both the impedance variation and the reactance term to use my approximation to finding the sign of the reactance. Larry's antenna is a good exception to the performance of simpler antennas. Most ham antennas have well defined harmonic related resonances, and dips to lower impedance at a resonance. Another case where you might have a non harmonic resonance is if you are measuring paralleled and non harmonic band antennas such as a 15m dipole in parallel on one feeder with a 17m dipole. If you are dealing with a one band or fundamental antenna, the rule of thumb is not too hard to use. Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DX Doubler
Randy, by coincidence I have just ordered one which I hope to collect doing my trip to Texas next week for the FOC Social Weekend. I asked for one cable for my FT1kMP and one generic cable so that I can put my own plugs on. I have a back to back trip to IS0 also so won't be able to try it out and report back until early April, so in the meantime you could email Dave N3RD at Topten. He will answer your queries. 73 Chris G3SJJ Randy Foltz wrote: I'm looking at buying a DX Doubler and am wondering if the Kenwood cables will work on a K2. The web site doesn't mention K2s. Any help will be appreciated. Thanks es 73, Randy, K7TQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K20#1599
Just FYI the input/output pin voltages on my new MAR-01 are exactly as Gary suggested they'd be. The N-GEN's noise signal increased markedly when I turned OFF the ANT for the 160m accessory, but there's still only about an S4 LED lighted. On all other bands (except the top half of 10m) there's at least S6 or higher. I discovered, however, that my N0SS noise gen behaves the same way i.e. MUCH less output on 80 and 40m than on most other higher bands just like the Elecraft N-Gen does. . I'm thinking I've got a bandpass filter or two misaligned. I'll look hard at them and also verify the S-Meter level adjustments. Will keep you posted. K0PQ Steve Banks Sent via BlackBerry from T-Mobile ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] polarity??
I just received some parts from Mouser and one was a 22uf. tantalum cap...I can't figure out the polarity mark,is it the long lead that is + ?? Thanks, John KF7OM Yes, I tried the vom and got a read both ways. Thanks, John ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Polarity??
Thank you list for all the replies, all you have to do is ask and bingo...thanks for the info...John KF7OM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Slightly off topic - eHam.net Article - Homebrew
Glad to see Elecraft got mentioned fairly quickly in the posts. http://www.eham.net/articles/16158 -- David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Strange occurence when paddle key is used when in SSB
OK folks, this is kind of a weird one but here goes. I have been using my K2(#726)-KPA100-KAT100 lashup for some years now and just recently noticed that when I am in SSB mode and hit the dot paddle the K2 seems to occasionally hang in TX. The receiver goes dead and usually hitting the dot paddle (or dash) again brings the receiver back to life. If the rig is in CW mode this will not occur and everything performs as it should. Anyone else seen this? Thanks, WA7U ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: KX1/KXAT1/KXPD1
SN#1510$400 I pay shipping, OBO you pay shipping. US Postal Money Order, US Orders only. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Strange occurence when paddle key is used when in SSB
Todd, The dot paddle line is the same line as that used for PTT - so you can activate PTT by holding the dot side of your paddle (handy with a desk mic), or the other way around, if you are operating CW, you can use the mic's PTT button to send a string of dots. If you just touch the dot paddle once and the K2 locks into transmit, there is something else going on that should be investigated. 73, Don W3FPR -Original Message- OK folks, this is kind of a weird one but here goes. I have been using my K2(#726)-KPA100-KAT100 lashup for some years now and just recently noticed that when I am in SSB mode and hit the dot paddle the K2 seems to occasionally hang in TX. The receiver goes dead and usually hitting the dot paddle (or dash) again brings the receiver back to life. If the rig is in CW mode this will not occur and everything performs as it should. Anyone else seen this? Thanks, WA7U -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date: 3/16/2007 12:12 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Strange occurence when paddle key is used when in SSB
Thanks Don, I have discovered that for this to occur it requires that I hit the dash paddle at nearly the same instant as the dot paddle. It is very infrequent. I will try to check this out further. It may happen once every 50 tries. Todd, WA7U - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Todd J Gahagan [EMAIL PROTECTED]; Elecraft List Elecraft@mailman.qth.net Sent: Friday, March 16, 2007 5:43 PM Subject: RE: [Elecraft] Strange occurence when paddle key is used when in SSB Todd, The dot paddle line is the same line as that used for PTT - so you can activate PTT by holding the dot side of your paddle (handy with a desk mic), or the other way around, if you are operating CW, you can use the mic's PTT button to send a string of dots. If you just touch the dot paddle once and the K2 locks into transmit, there is something else going on that should be investigated. 73, Don W3FPR -Original Message- OK folks, this is kind of a weird one but here goes. I have been using my K2(#726)-KPA100-KAT100 lashup for some years now and just recently noticed that when I am in SSB mode and hit the dot paddle the K2 seems to occasionally hang in TX. The receiver goes dead and usually hitting the dot paddle (or dash) again brings the receiver back to life. If the rig is in CW mode this will not occur and everything performs as it should. Anyone else seen this? Thanks, WA7U -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date: 3/16/2007 12:12 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Kit arrived...
I got my front panel board done today, and started on the RF board. So far all seems good, very easy to build, at least so far In case anyone is wondering, they are up to SN 6065! I have read a bit here about setting up the filters, and it being critical, and you need the spectrogram software. Well, it seems to me if you need that to set the rig up so it works correctly, it should be included with the kit? Would a spectrum analyzer help? I have a nice HP 8592l that I used on the homebrew receivers, could I use it on the K2 to set the filters up? Brett N2DTS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Kit arrived...
Brett, You will find Spectrogram easier to use than a spectrum analyzer. Think of Spectrogram as a spectrum analyzer for the audio spectrum (which it is). In general, it will offer better resolution than an RF spectrum analyzer and will provide a plot of the audio response of the K2. Your spectrum analyzer may be helpful in determining the harmonic rejection of the K2, and other RF related parameters, but the audio response analysis offerred by Spectrogram will be sufficient for aligning the K2 filter bandpass. 73, Don W3FPR -Original Message- I got my front panel board done today, and started on the RF board. So far all seems good, very easy to build, at least so far In case anyone is wondering, they are up to SN 6065! I have read a bit here about setting up the filters, and it being critical, and you need the spectrogram software. Well, it seems to me if you need that to set the rig up so it works correctly, it should be included with the kit? Would a spectrum analyzer help? I have a nice HP 8592l that I used on the homebrew receivers, could I use it on the K2 to set the filters up? Brett N2DTS -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date: 3/16/2007 12:12 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Kit arrived...
Brett, N2DTS, asked: I have read a bit here about setting up the filters, and it being critical, and you need the spectrogram software. Well, it seems to me if you need that to set the rig up so it works correctly, it should be included with the kit? == Good point, Brett, and the truth is you can set up the filters without any other stuff. However, Spectrogram is an excellent tool that makes the process infinitely easier. Unfortunately, Elecraft doesn't own it! You can get a copy along with FB detailed instructions on how to use it from one of our long-term list members and great contributor, Tom, N0SS. Go to http://www.n0ss.net/index_k2.html And scroll to the bottom of the page. The next-to-last item is the Spectrogram software. The last item is the step-by-step instructions for using it. Once again, for the thousandth time, *thanks* Tom!! Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] spectrogram for mac or linux?
i STILL haven't started the build on my k2 yet, as i have been too busy playing with my k1.. anyway.. when it comes time to align the filters, i don't have a windows machine anywhere.. is there a suitable program for mac or linux? thanks! -- ___ peace, sergio photographer, journalist, visionary www.village-buzz.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
