RE: [Elecraft] Wireless Router Recommendations
Jim, K9YC wrote: Proximity to the radio is meaningless. The following comments apply to virtually ALL Ethernet devices, including your computers. What matters are: 1) The antennas connected to the Ethernet device -- their length, and their proximity to YOUR antennas (but NOT to your radio) My router for a while sat a on a shelf just about 20 inches from my link-coupled tuner. This is an open tuner design using a large 3 dia by 10 long open coil with a big transmitting-type variable cap across it (you can see a picture of it on www.QRZ.com; just look up AC7AC. The router was on a shelf under the desk about where my knees are in the picture). Sure, this is a balanced antenna system and the idea is to prevent pickup and radiation from the balanced feed and tuner, but the balance is never perfect. As the photo shows, the feeders drop down near the table top (and the wireless router just below) where they pass through a header to the outside. As I wrote before, digital stuff generates noise; I'd be the last person to deny that. It's sometimes very hard to do anything effective about it. Still, the situation varies so much from installation to installation that only the most general rules of thumb might suggest what an particular installation will produce. That is what I was trying to convey by relating my particular experience. 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] K1 (2040) speaker dead
Thank you very much to KR2F, AB9CA, AC7AC, K7SVV, KB9BVN, K4ZM and N0SS and others for the usefull information. I will ask Elecraft for new earphone jack to replace. 73, Ruchan Ozatay, TA2AH ___ 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] My K2 no longer transmits.....which components might need replacing?
Hello everyone, During the alignment of the Top Band option of my K2 I did a stupid thing and connected the dummy load to the wrong antenna connector. I used the tune button and tried to align the filters to set the TX power using the power level set to 2 watts. I got a high current warning on the display and then no power out. So it looks like I have damaged the PA by transmitting into no load. The net result is that I have no TX on all bands. There was no smoke, no excessive heat and no visual damage to components. The K2 ATU option displays 0.1:1 when I hit the tune button (incidently I thought the K2 should display power out when the tune button is pressed) and the Motorola test set I use indicates 0 power out. RX seems fine. I can only work on the rig at the weekends and there is no friendly component shop handy where I live. Clearly I will need to replace something. So I was thinking of ordering the components which might have failed by mail order and what I dont use will go into my spares store. Any ideas what I should order and or where the fault might lie Thanks in advance, Steve ___ 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] drilling acrylic
Ron, When we had to drill acrylic at work we used a mixture of dish detergent and water around 4 to 1 mix seemed to work fine. Drill at a slower speed and use the mixture liberally to get a nice hole (easy clean up as well). Make sure you clean the bit afterwards otherwise most will rust. 73, 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
RE: [Elecraft] Wireless Router Recommendations
Hi all, I have older Linksys wireless and wire routers and they are the noisiest things in the house. I end up turning the entire network off when operating HF. Steve, W2MY -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.10/383 - Release Date: 7/7/2006 ___ 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] Re: network equipment noise (was: Wireless Router Recommendations)
I have a Linksys WRT54G which is about three years old. It produces so much noise that I can't even listen to the local BCB station on 700KHz. Try to configure all your ports to be 10 mbit ethernet, not 100 mbit. With some equipment, you can configure ports this way, with other equipment, you can configure the link partner to be this way, and with bad luck you'll need an old 10mbit-only hub. Chances are it makes a difference. 100BASE-TX uses signalling that uses a wide spectrum, 10BASE-T is manchester encoding which spikes every 5 MHz and in some cases I was able to fix noise problems this way. Oh, and you did try to disconnect all ethernet wires to see if it makes a difference, yes? 73, Geert Jan PE1HZG ___ 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] Value of K2??
Jay ... For the past few months, I have been keeping track of the prices obtained on Ebay for Elecraft rigs. (I know, too much time on my hands - I need a K3 to build!) I believe this to be a fair indication of actual value. The average price of a K2 without the 100W amp has been $746. For others who may be interested, more complete data is listed below. I did not include rigs that were partially assembled, non-functional or that seemed to be in poor condition. There will be a different mix of options, but I did not account for this. Rig# sold Ave Price K1 20$ 319 KX1 9$ 451 K2 20$ 746 K2 100W 8$ 1093 73 Craig AC0DS ___ 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] Value of K2??
It would be misleading to average out the price for a K2 because one knows not of the options installed. In K0GU's offering the asking price should start with the price of the 4 kits, viz. $776.00. Buyer pays shipping. Any more than that would be too much. de Joe, aa4nn --- Rig# sold Ave Price K1 20$ 319 KX1 9$ 451 K2 20$ 746 K2 100W 8$ 1093 73 Craig AC0DS ___ 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] My K2 no longer transmits.....which components mightneed replacing?
Steve, If you want to have all the components that possibly could have failed available, you could order one of every part in the K2 and the ATU transmit chain! For a more sensible approach, you must first do some isolation steps. First remove the KAT2, then see if you have power out of the basic K2. If the basic K2 is not transmitting, then use an RF Probe (one came with the K2 kit) or a 'scope and follow the steps for Transmit Signal Tracing that are shown in the K2 manual Appendix E. Once you have localized the problem stage, then you can more easily isolate to the failing component. You likely only have one thing that has failed. This kind of orderly approach to troubleshooting is more productive than just replacing a bunch of parts in hopes that you get to the bad one - that 'shotgunning' approach has only a small chance of fixing the problem and can lead to damaged boards and other frustrations. The initial steps to troubleshooting are outlined in the Appendix E of the manual, and can often resolve the problem quickly if it is not difficult. More obscure problems can usually be found by the signal tracing steps outlined in the manual. 73, Don W3FPR -Original Message- During the alignment of the Top Band option of my K2 I did a stupid thing and connected the dummy load to the wrong antenna connector. I used the tune button and tried to align the filters to set the TX power using the power level set to 2 watts. I got a high current warning on the display and then no power out. So it looks like I have damaged the PA by transmitting into no load. The net result is that I have no TX on all bands. There was no smoke, no excessive heat and no visual damage to components. The K2 ATU option displays 0.1:1 when I hit the tune button (incidently I thought the K2 should display power out when the tune button is pressed) and the Motorola test set I use indicates 0 power out. RX seems fine. I can only work on the rig at the weekends and there is no friendly component shop handy where I live. Clearly I will need to replace something. So I was thinking of ordering the components which might have failed by mail order and what I dont use will go into my spares store. Any ideas what I should order and or where the fault might lie Thanks in advance, Steve ___ 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] Frequency Counter Probe not working S/N 5567
Good Morning Don, Thanks for your assistance, I found the problem and the Freq. counter is now working. I used one of the 2n's from the RF board and replaced Q9. But, this did not fix the problem so I checked the voltage at the base and Q9 and found none. Checking the voltage at Q10 I found .73Vdc. Checked for voltage at RP4 pin 1 and found none, checked RP4 pin 2 and found 3.something. Reheated pins 1 and 2 and bang problem fixed, .73Vdc at Q9 base and freq. counter working. Thanks for your help. It's been a long time since I followed a schematic. All in all a good learning experience. Now back to building. Have a great week. Terry VA6MAC s/n 5567 -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 04, 2006 3:33 PM To: McMillan, Terry Subject: RE: [Elecraft] Frequency Counter Probe not working S/N 5567 Terry, I don't know the RF characteristics of those replacement transistors, so I would be hesitant to use them in an RF application - I suggest you use the 2Ns that are intended for RF Board Q11 and Q13 as your replacements for the MPS5179s and then use the NTE123AP transistors for Q11 and Q13 - they will owrk in those positions just fine becuase they do not handle RF, so only the DC gain counts, and if they are good replacements, they will work there because that circuit only sets the bias level for the PA output transistors. Hey, at 11 cents each, buy 9 of them for $1 and you will have a few spares!!! 73, Don W3FPR -Original Message- From: McMillan, Terry [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 04, 2006 5:11 PM To: [EMAIL PROTECTED] Subject: RE: [Elecraft] Frequency Counter Probe not working S/N 5567 Don, I called the local electronics shop they could not find a cross reference for Q9/Q10 MPS5179. But have a cross reference for 2n, a NTE123AP. At 11 cents each can I use the NTE123AP to replace Q9/Q10? This would save shipping from the US to Canada and I can walk over to the shop so delivery is quick. Thanks again for your help. Terry VA6MAC -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Monday, July 03, 2006 1:25 PM To: McMillan, Terry Subject: RE: [Elecraft] Frequency Counter Probe not working S/N 5567 Terry, If you do not have an oscilliscope to check through the Q9/Q10 path to the microprocessor input, then yes the next thing to try is replacing Q9 and Q10. If you have stock on 2Ns, try those in place of the 2N5179s. Note that I have ordered some 2N5179s that did not work properly in this application, but all the ones I have obtained from Elecraft worked fine - my conclusion is that all 2N5179s are not created equal and I don't know why. You can 'borrow' 2Ns from the unbuilt part of your K2 and order replacements from Scott. 73, Don W3FPR -Original Message- From: McMillan, Terry [mailto:[EMAIL PROTECTED] Sent: Monday, July 03, 2006 12:27 PM To: [EMAIL PROTECTED] Subject: RE: [Elecraft] Frequency Counter Probe not working S/N 5567 Good Morning Don, Thanks for your help. I verified again that the pins are not reversed in the housing; the shield is closest to the side panel. I then checked c22 with a 12 pf cap connected in series with a test lead, still nothing displayed on the panel except 0.00. Using another RXvr I do detect a 4MHz signal at C22 so it does look like the reference oscillator is working. So it would appear to be a component in the counter circuit on the board at fault. I rechecked: Solder bridges - None Q9 Q10: are MPS5179 and oriented properly RP4: 8x-2-823, I questioned [EMAIL PROTECTED] if this is a sub for 77083823. They confirmed it was. C37: 103 C38: 681 C39: 103 What's next, replace Q9 Q10? Terry VA6MAC -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: July 2, 2006 7:41 PM To: McMillan, Terry; elecraft@mailman.qth.net Subject: RE: [Elecraft] Frequency Counter Probe not working S/N 5567 Terry, Is there a possibility that you have the pins in the housing reversed? The shield should be closest to the side panel. There is just not much to the frequency probe - a piece of coax with a 10 pf capacitor in series with the center conductor, so not really much to go wrong. To test the counter (without the probe), you can connect a clip lead with a series 10 pf capacitor from the counter input to the control board (pin furtherest away from the side panel) to C22 (any 10 pf cap will do - use one from the kit, or a 12 pf if you can't find a 10 pf) - if you find a reading anywhere near 4 MHz, then the counter is working and you will find your trouble in the probe - or there is a chance that the reference oscillator is not working (and that is a bigger problem). If you have another receiver, connect a short antenna wire and put it close ot C22 to
RE: [Elecraft] Frequency Counter Probe not working S/N 5567
Terry, I'm glad you found it - congratulations on the good troubleshooting steps. 73, Don W3FPR -Original Message- Thanks for your assistance, I found the problem and the Freq. counter is now working. I used one of the 2n's from the RF board and replaced Q9. But, this did not fix the problem so I checked the voltage at the base and Q9 and found none. Checking the voltage at Q10 I found .73Vdc. Checked for voltage at RP4 pin 1 and found none, checked RP4 pin 2 and found 3.something. Reheated pins 1 and 2 and bang problem fixed, .73Vdc at Q9 base and freq. counter working. Thanks for your help. It's been a long time since I followed a schematic. All in all a good learning experience. Now back to building. ___ 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] Lettering EC cases?
What is good way to apply lettering to the EC cases? I need to put labels on a project I just finished. Usually I just resort to the Sharpie, but something neater would be nice! Tor N4OGW ___ 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] Lettering EC cases?
There are sheets of rub-off-letters which you can rub off onto the EC case to spell whatever you want. More at: http://www.misterart.com/store/view/001/group_id/392/HeadLine-Rub-On-Lettering.htm You can make your own words with a little more expensive but simple process at: http://www.craftycomputerpaper.co.uk/Dry%20Decals%20product%20page.htm I am uncertain how well these letters will conform and stick to the rough finish of Elecraft cases. de Joe, aa4nn ___ 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] Blackwidow
The Blackwidow paddle is a good addition for a kit built station. The kit went together well and operation is smooth. The hardest part of the build was finishing the brass components. A fun project. and the price is great. Looks good along side of the K2's and K1. Pictures of my finished Blackwidow at: http://00497f5.netsolhost.com/radio/Blackwid02.jpg http://00497f5.netsolhost.com/radio/Blackwid04.jpg John k7up ___ 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] Antennas for use with Elecraft T1 ATU
Thanks to everyone who provided advice on my antenna question. My Elecraft balun kit showed up today and I am going to get it built. I will try out of some of the ideas from this message thread and hopefully get some good outside operating in over the next month. I think I have everything I need. If you hear an unsteady CW fist and a signal that sounds like the antenna is waving around in the wind.check to see if it is me! If the prosigns are messed upthen it is even more likely that it is me. 73 de Keith KB3ILS ___ 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] Alignment tools
There are some ceramic tools out there, under the name pro'skit or pros'kit. Made in Japan, good stuff! I think radioshack.com has 'em. 73 de Alex NS6Y. On Jul 7, 2006, at 12:16 PM, Steve Knapp wrote: When trying to tweak my KX1 I noticed that most of my plastic tools were too weak, and metal tools changed the setting. Looking around I found a few that seemed interesting. http://cgi.ebay.com/IF-Transformer-Alignment-Tool-Kit-HAM-antique- Radio_W0QQitemZ140002425458QQihZ004QQcategoryZ4671QQssPageNameZWDVWQQr dZ1QQcmdZViewItem http://www.wihatools.com/270serie.htm Having had good luck with Wiha, I bought one of those. We'll see how it works out. FYI! Steve K. KA9QOA. -- Steve Knapp ___ 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] KX1 vs. FT-817
With all this talk of nearly-deaf KX1's I'm beginning to wonder. Which has a better reciever, the KX1 or the Yaesu FT-817? Because in my experience, the FT-817 is Much better. Could I have built my KX1 with the deafness problem and not known it? 73 de Alex NS6Y ___ 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] plexiglass
In my reading about green radios I can't afford (but want anyway) and in various readings I've heard that detecting the 455-kHz LO of a superhet isn't all that hard, and that for instance in countries that require a radio license, they use such techniques to check if people in their houses have radios (or TVs) that they're not on record of having licenses for! And, in a lot of the military radios, the shielding is VERY good so that detection is much harder to do. 73 de Alex NS6Y. On Jul 9, 2006, at 5:29 AM, Gil Stacy wrote: But the German radar detector receivers used supperregenerative detectors,which radiate a weak signal. Don't know whether this is apocryphal or not, but I had heard from a former USAF EW tech that the VC in Viet Nam in the early days figured out how to make U.S. field superhets' LO howl , giving away qth, causing some units to switch to TRF technology. Gil NN4CW ___ 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] plexiglass
Aha that sounds like Pycrete! Fine wood fibers, mixed with water to make a slurry, and frozen. Interesting stuff, read up on it if you want to be entertained! 73 de Alex NS6Y. On Jul 9, 2006, at 7:26 AM, J F wrote: Didn't the allies look into building aircraft carriers from ice? if you had impregnated the ice with say fine copper mess, would it not also be somewhat of an RF sheild... or maybe just a good ground plane for the minature 160M vertical ummm I've said too much already ;o) 73, Julius n2wn Some nice QRP signals on 40M SSB during IARU ___ 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] FD Battery rules (was QRP Power Level?)
[EMAIL PROTECTED] wrote: In a message dated 7/8/06 8:29:46 AM Eastern Daylight Time, [EMAIL PROTECTED] writes: Field Day rules should change to allow a CW station to operate QRP and get the added score for being QRP, with another station working SSB at 1500 watts who get the usual 1 point, per contact. It's not about mode-vs.-mode. It's about being able to mix various power levels in the same group. Not sure who to write and ask for the change. ARRL Contest Committee. Also put it in the Soapbox comments on the ARRL website. But it has to be presented the right way. CW-vs.-SSB isn't the right way, because non-phone modes already get double the points. The way the trend is, it is more likely we will see 5 points for each email originated via Winlink as a future score. -- _____ / \ / \ / \ / \ / \ John L. Sielke ( W )( 2 )( A )( G )( N ) http://w2agn.net \_/ \_/ \_/ \_/ \_/ http://www.blurty.com/users/w2agn CRUSTY OLD CURMUDGEON, AND PROUD OF IT (AGN and AGN? are Trademarks of John L. Sielke and may not be used without permission) ___ 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] KX1 vs. FT-817
I can't speak for other KX1's but I just finished building SN: 1542 and checked the sensitivity of it with my Cushman CE-6A Service Monitor and I was able to hear the signal generator set to 0.1 microvolts on all four bands (80-40-30 20). 73 Jim Younce K4ZM ___ 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] KPA 100 toroid sewing
I am winding L1: 27 turns of #22 red enamel wire on a RED T50-2 core. I get to 22 turns and the internal parts of coiled wire touch.. I.e., no room to make more turns. What am I doing wrong? Am I using right core, wire? Thanks! John AB8WH PS, I'm back. ___ 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] Re: KX1 vs. FT-817
Alex, a deaf KX1 would be one that has an assembly error somewhere. The KX1 has excellent sensitivity and plenty of audio output. We recommend earbuds or other sensitive headphones, but it can also be used with a small speaker as long as you use a stereo plug. The FT817 certainly has more audio output, which is appropriate since it's often used in mobile installations. But in terms of MDS, the KX1 should be as good or better. The KX1 also comes with a narrow crystal filter -- optional on the FT-817. 73, Wayne N6KR --- 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] Receiver-caused RFI (WAS: plexiglass)
Alex wrote: In my reading about green radios I can't afford (but want anyway) and in various readings I've heard that detecting the 455-kHz LO of a superhet isn't all that hard, and that for instance in countries that require a radio license, they use such techniques to check if people in their houses have radios (or TVs) that they're not on record of having licenses for! And, in a lot of the military radios, the shielding is VERY good so that detection is much harder to do. That's true for some tens of feet around for unshielded vacuum-tube radios that used fairly robust local oscillators. In countries where a license for a receiver is required, authorities sometimes located receivers by driving up and down streets with special listening vans. They could often hear the local oscillator if they were quite close to the receiver's location. Local oscillators don't radiate well. The antenna input to the receiver is tuned to the signal frequency, well off of the L.O. frequency, so it and any antenna doesn't radiate much. It's the same for TV's; There's virtually no radiation from the antennas. What receiver DOES radiate well enough to be heard for miles around - sometimes around the world - is a regenerative detector without an RF stage to isolate the detector from the antenna. In that case, the detector (when oscillating in autodyne mode for CW reception) is oscillating on the same frequency the antenna circuit is tuned to, and well-coupled to the antenna! Vacuum tube regenerative detectors might produce a watt or more of RF, and solid state detectors can produce 10s or 100s of milliwatts. In the late 1920's and early 1930's, before superheterodynes became popular for Ham use, the QRM from oscillating regenerative detectors was a very serious problem on many Ham bands. Armstrong (who invented both the regenerative detector and the superheterodyne circuit the Elecraft receivers use) wrote open letters to Hams that were published in journals like QST begging them to add RF amplifiers ahead of their regenerative detectors. That's still true today for people using vintage designs from that era, but they are relatively few in number and we're assaulted by so much other RFI (read the recent thread on digital RFI) that they're seldom noticed. 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
Re: [Elecraft] plexiglass
Habbakkuk- and yes, it was built with Pyecrete. A model of the real thing was built at Patrica Lake in Canada. The most useful purpose would have been to bridge the Mid-Atlantic Gap, but by the time the thing could have been built, aircraft range had increased, and escort carriers had been built, to make it moot. 73, doug From: Alexandra Carter [EMAIL PROTECTED] Date: Sun, 9 Jul 2006 10:13:48 -0700 Aha that sounds like Pycrete! Fine wood fibers, mixed with water to make a slurry, and frozen. Interesting stuff, read up on it if you want to be entertained! 73 de Alex NS6Y. On Jul 9, 2006, at 7:26 AM, J F wrote: Didn't the allies look into building aircraft carriers from ice? if you had impregnated the ice with say fine copper mess, would it not also be somewhat of an RF sheild... or maybe just a good ground plane for the minature 160M vertical ummm I've said too much already ;o) 73, 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
Re: [Elecraft] Blackwidow
Nice looking key John, looks like you did a nice job on it. 73 Tony W7GO - Original Message - From: John [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, July 10, 2006 12:59 PM Subject: [Elecraft] Blackwidow The Blackwidow paddle is a good addition for a kit built station. The kit went together well and operation is smooth. The hardest part of the build was finishing the brass components. A fun project. and the price is great. Looks good along side of the K2's and K1. Pictures of my finished Blackwidow at: http://00497f5.netsolhost.com/radio/Blackwid02.jpg http://00497f5.netsolhost.com/radio/Blackwid04.jpg John k7up ___ 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] Detecting the LO [was: plexiglass]
Alexandra Carter wrote: I've heard that detecting the 455-kHz LO of a superhet isn't all that hard, and that for instance in countries that require a radio license, they use such techniques to check if people in their houses have radios (or TVs) that they're not on record of having licenses for! Here in Fresno, there's a billboard that detects the FM station to which car radios passing it are tuned, and summarizes the data for marketing purposes. I always switch to AM when I see it. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] KPA 100 toroid sewing
John Wiener wrote: I am winding L1: 27 turns of #22 red enamel wire on a RED T50-2 core. I get to 22 turns and the internal parts of coiled wire touch.. I.e., no room to make more turns. What am I doing wrong? Am I using right core, wire? Make sure the core is 1/2 in diameter. There's a red T44 core that is only 0.44 in diameter. And of course make sure the wire is no. 22! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] Found my mistake
Vic, Thanks for the heads up... Yes, I just realized the subtle (to me) diff in core sizes of the red ones. Corrected and movin' on. Thanks again, John AB8WH ___ 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] KPA 100 toroid sewing
John, Forgive me if I am misunderstanding your question, but if all you mean is the wire is starting to touch itself at the inner part of the toroid core, don't worry. It is insulated, and it will not matter. Just try as much as possible to have the turns evenly spaced, and covering whatever total percentage of the core as is specified in your instructions. Usually this is about 2/3 to 3/4 or the entire core's diameter. I hope I am of some help. Regards, Vin Cortina KR2F K1-4 s/n:1977 KX1 s/n:1476 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Wiener Sent: Monday, July 10, 2006 4:54 PM To: Elecraft email Subject: [Elecraft] KPA 100 toroid sewing I am winding L1: 27 turns of #22 red enamel wire on a RED T50-2 core. I get to 22 turns and the internal parts of coiled wire touch.. I.e., no room to make more turns. What am I doing wrong? Am I using right core, wire? Thanks! John AB8WH PS, I'm back. ___ 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] Blackwidow
John wrote: The Blackwidow paddle is a good addition for a kit built station. The kit went together well and operation is smooth. Niiice, and like your pics. My Black Widow kit turned up on Saturday. The hardest part of the build was finishing the brass components. Yah, I started following Jerry's instructions, with the sandpaper on a flat surface, spent hours and hours sanding it and barely making a dent in the very visible machining marks. Then I attacked it with the buzzy electric sander, and within a minute or two had the whole lot clean and flat. It now has a matt finish, with millions of tiny spirals and swirls on it. I can't decide whether to leave it as it is, or go onto the much finer polishing next. Looks like you went for the mirror effect - was it worth the effort? -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] Why didn't Noah swat those two mosquitoes? ___ 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] plexiglass
In a message dated 7/10/06 4:40:39 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: , they use such techniques to check if people in their houses have radios (or TVs) that they're not on record of having licenses for! Bit of history: Way back about 100 years ago, there was little or no regulation of radio - or wireless telegraphy as it was known then. With only a few short-range experimental stations on the air, there was little need for regulation, but as radio technology and popularity improved, the need for rules was obvious. Here in the USA, various legislation was proposed by the parties involved, mostly the Navy and commercial wireless companies such as Marconi and Telefunken. This was 1910, before the FCC, ARRL, broadcasting, or the Titanic disaster that resulted in much more comprehensive regulation of radio. Their model was the telegraph legislation. Why not just extend the rules written for wire communication to wireless? It had been done for the telephone, why not for radio? The proposed rules did not differentiate 'receiving station' from 'transmitting station'. The commercial folks liked the idea of licenses for all stations because it would help keep people from listening in. A few interested amateurs/experimenters and organizations had gotten themselves involved, however. One of them was Charles Stewart of St. David's, PA, representing the Wireless Association of Pennsylvania. He argued that there was a vast difference between wired and wireless, and that the 'waves come upon us whether we bid them or not'. Also involved was the Radio Club of America. Because of these efforts the legislators were convinced to only license transmitting stations in the USA. But the UK and most other countries had no Charlie Stewart, and they licensed both receivers and transmitters. When Paul Godley went to England in 1921 to listen for American amateurs on 200 meters, he needed a license for the receiver. Since he wasn't British, he could not be issued a license, and a British assistant actually held the receiving license. Charlie Stewart became 3ZS and was one of the founders and vice presidents of the ARRL. He passed away in February 1936, the same month as HPM and Mrs. Maxim. St. David's is right next to Wayne, where I live. I think I have located his house, too. --- The use of detector vans is lampooned in a Monty Pyhton skit, in which a man tries to obtain a license for his pet bee named Eric. 73 de Jim, N2EY ___ 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] Local Oscillator Radiation
Subject was pexiglass John D'Ausilio wrote: when the cops break down the door and drag away dad, the VO comes in Have you renewed your television license? Yes indeed, and a little frightening for us Colonists, what with all that pursuit of happiness babble and all. However, the radiation from the TV comes primarily from the parts that make the screen light up with a raster (if it's a CRT, and then, of course it probably was) ... fairly high voltage sharp-edged signals with lots of harmonics ... and they do radiate, at least for many tens of meters, on very predictable frequencies. The LO's are still pretty weak and generally below the noise. Connection to Elecraft: 1. I can't hear the K2 LO on my wide-band service monitor with the input connected to the K2 antenna connector or laying next to the power cable so I assume the NSA can't either 2. Elecraft products do not have CRT's associated with them so no one is likely to break down your door on that account while you're on the air. 3. When transmitting with my K2, it is my sincere desire that *everyone* can hear me. (OK, that 'connection' is a little weak) There was one thread some time ago that began with an Elecraft question that slowly morphed into dentistry (don't ask me how). This one has covered transparent plastic, tools to work with it, advisability of using it, sources of plastic, war (that was a big jump, no?), military radio equipment, frozen battleships made of ice (not sure how that happened), TV police, and at least one Urban Legend. I wonder how far it will continue. N0SS: A friend agreed to fix the Mitrek repeater and controller problems that filled my workbench, and I'm back to fixing the KPA100 problem that resulted from the attempt to fix the 40m parasitic problem. Stay tuned. Fred K6DGW Auburn CA CM98lw K2 4398 KX1 897 ___ 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] (no subject)
Guess I was out in left field when Blackwidow keys were discussed. Anyone got a URL for a web site, mailing address, NJ5A ___ 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] Black Wiodow Paddle URL
http://www.w5jh.net/Black_Widow.htm -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Robertson Sent: Monday, July 10, 2006 9:06 PM To: elecraft@mailman.qth.net Subject: [Elecraft] (no subject) Guess I was out in left field when Blackwidow keys were discussed. Anyone got a URL for a web site, mailing address, NJ5A ___ 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 -- This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email. == ___ 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] Blackwidow
Keep the info on the Blackwidow coming. Until I can afford an Elecraft Hex Key, this will probably be my paddle. I don't do well with brass, as my perspiration tends to leave marks on it. Just wonder if you Blackwidow paddle owners treated the brass with Everbrite and how well that worked. Darrell On July 10, 2006 03:54 pm, Nick Waterman wrote: John wrote: The Blackwidow paddle is a good addition for a kit built station. The kit went together well and operation is smooth. Niiice, and like your pics. My Black Widow kit turned up on Saturday. The hardest part of the build was finishing the brass components. Yah, I started following Jerry's instructions, with the sandpaper on a flat surface, spent hours and hours sanding it and barely making a dent in the very visible machining marks. Then I attacked it with the buzzy electric sander, and within a minute or two had the whole lot clean and flat. It now has a matt finish, with millions of tiny spirals and swirls on it. I can't decide whether to leave it as it is, or go onto the much finer polishing next. Looks like you went for the mirror effect - was it worth the effort? -- Darrell Bellerive Amateur Radio Stations VA7TO and VE7CLA Grand Forks, British Columbia, Canada ___ 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] Field day rules
All field days start on GMT, ie at 1800 Z Sat., or local 1 PM Central Time zone. They all end at 1800Z Sun. The only exception has been if you do not start set up until 1800Z, you can operate extra time on Sun. after 1800Z. But NO one is heard on doing that, the bands have a huge vacuum at 1800 Z Sun. as all collapse! 73, 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] K2/100 condensation problem
On Jul 5, 2006, at 11:22 AM, Fred (FL) wrote: I am puzzled by the reports of condensation accumulating inside a K2, in a marine environment? No boats here! Just an incredibly humid Georgia June weekend during Field Day. I had the same problem last year and I completely disassembled the K2 and found drops of condensation. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Re: What's wrong with Serial
On Jun 21, 2006, at 12:49 PM, Jack Brindle wrote: Mini-Dins are simply not reliable. The connectors break all-too easily, mostly due to the pins bending if the connectors are not aligned just right. We intentionally moved away from them at Apple because of this problem. And here I thought that it was because USB was a better solution At least, that's what they told me at WWDC 1997. Instead, it was the stupid connectors for Serial and ADB. There really isn't a good connector solution at present. If you look at what is available in a semi-rugged form factor, we are limited to D-shells, DINs (not mini-Dins), RJs, and not much else. The RJs are not shielded, so we end up duplicating connectors out of necessity. USB connectors are highly reliable, sheilded, and you could put two of them in the space that a single DB-9 fits I think Wayne made a good choice with the connector, and it is up to us to realize that it is not standard RS-232 and just deal with it. Of course, few, if any, other ham rigs have standard RS-232 connectors on their rear apron... Indeed. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Serial Port - DB-9 vs. RJ-45
On Jun 21, 2006, at 7:31 PM, [EMAIL PROTECTED] wrote: Four problems with using an RJ-45 for the port on the K2: - Only 8 wires - Not shielded - Could be mistaken for something else just as easily as a DB-9 Don't use it as a serial port -- use it as a 10BaseT connection. And now the big one: Crimping an RJ-45 plug requires a special tool (mine only cost $30), and the plugs are one-shot items. DB-9 is no harder to solder than a PC board, no special tool, and you can reuse them. I just buy pre-fabbed RJ-45 jumpers, the can be found at any computer store, and at most better home improvement stores. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Slow Code Watering Holes?
On Jun 26, 2006, at 5:22 PM, Stephen W. Kercel wrote: At the KS1R Field Day operation we had a bunch of 5 wpm operators who wanted to try their hand at CW on our GOTA station. They were very disappointed because they could not find any slow stations, and the 20+ wpm CW that most Field Day operators were running simply overwhelmed them. Nevertheless, they are interested in improving their overall on the air proficiency in CW. Are there particular frequencies where slow code operators who want to talk to other slow code operators hang out? Traditionally, the Novice bands were the place for really slow-paced CW. Unfortunately, the novice license isn't the route of entry into ham radio any more, and slow CW activity has diminished to the point that it is rare to find. Generally speaking, the high-end of the CW bands are where you find the slowest operators. But, during Field Day, you're not likely to find many ops at 5 wpm. The best thing to do in this case is to call CQ at the speed you wish to receive, and hope someone calls at your speed. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Slow Code Watering Holes? (OT)
On Jun 26, 2006, at 7:57 PM, Mike Morrow wrote: The magic of the Novice bands seemed to start failing when higher power and VFO operation were sanctioned and when Novice licenses became renewable. Nope. I was licensed as a Novice from November 1975-1977, and during that time there was lots of low-speed CW - VFO controlled, and during the summer of 1976, power levels went to 200 watts PEP. I think end of Novice activity came when the no-code Technician was adopted. Hopefully, the FCC will get around to passing the new regulations and Novices and Tech's with CW will be able to use the majority of the CW bands on 80, 40 and 15m, just like it was in the old-old days before incentive licensing. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Slow code, etc
On Jun 26, 2006, at 6:13 PM, [EMAIL PROTECTED] wrote: I sort of like my CW drawl and probably won't change much in the next few years. But are many of you changing to keyboards? During contests, I always let the computer generate the CW, even sometimes using the keyboard feature, although I'll occasionally reach for the paddles. The computer can send faster and more accurately than I can. Keyboards aren't a new phenomenon. I remember being active in a slow- speed traffic handling net in the late 70s and one of the net controls was a blind ham who would regularly do 40+ wpm with a keyboard. It was funny to listen to him close the net at 5 wpm, then crank it up to 40 wpm a minute later. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] K2/100 condensation problem
How about leaving a side panel (or two) off next year so air can pass through? (Another 'feature' of that modular cabinet!) Ron AC7AC -Original Message- On Jul 5, 2006, at 11:22 AM, Fred (FL) wrote: I am puzzled by the reports of condensation accumulating inside a K2, in a marine environment? No boats here! Just an incredibly humid Georgia June weekend during Field Day. I had the same problem last year and I completely disassembled the K2 and found drops of condensation. Bill Coleman, AA4LR, PP-ASEL ___ 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] XV144 down to 2W out
Raj, I can only guess at the reason for your 'unreliability'. I have not measured the K2 low power output stability at anything as low as 0.02 mW. The one thing I know is that the XV144 should be linear (it needs to be to support SSB), and that the K2 determines its power digitally, so there will be discrete steps in the actual K2 power output. I have not calculated the step size with the K60XV, but by the time the output is amplified by the transverter, the steps may be noticable, particlarly with low output settings from the K2. If you plan to always operate the XV144 at the lower power, then yes, adjusting the input attenuator on the XV144 may be the better solution. Try it and see what happens - that is an analog solution and the higher power output level from the K2 should mask the minor variation in the digitally controlled steps from the K2. Note that digital steps are usually +/- 1 step from the nominal setting - so if the step size is 0.01 mW, a setting of 0.02 mW may vary from 0.01 mW to 0.03 mW where using the same step size at 1.00 mW, the variation will be only from 0.99mW to 1.01 mW and the percentage change is much smaller (1% variation as compared to 50% at the lower power setting). (My exact numbers may be incorrect, but the concept is still valid.) 73, Don W3FPR -Original Message- What is simplest way to turn down the max power out from a XV144 from 15 to 2W? I use a K2 and tried to turn down the power by reducing the drive from K2 from the nominal 1.0mw down to 0.02mw but this did not work reliably. Should I be adjusting R22 on XV144, the input attenuation adjustment, instead? Thanks, Raj, N2RD ___ 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] tks
thanks for helping me get on the elecraft archieves i just purchased a K2 with all accessiores except DSP radio seems to be working well so far Harry [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
