[Elecraft] K2 Almost Ready
Gang: Had my first surgery on April 21, been lugging a cast around on my right foot ever since. Still have at least 3-4 weeks more with no weight bearing. Therefore, I decided to put my off-work time to good use, bought a K2 with all the options except the battery and the 100W amp, and have been having a ball building and building and building. We are at a work stopage due to a missing 2N5109 (Q5 pre-driver) transistor. It is Saturday night, of course, so it won't be here before Monday or Tuesday (thanks, Scott). AndI am chomping at the bit to get this thing all together, tested and on the air! The 2N5109 subs out to an NTE 278, but I don't have one of those either. Anyone have a good non-NTE sub for this transistor that I just might have in my stock so I could get on with the testing of this rig. I'm already suffering from cabin fever and this isn't helping one bit!!! Two things I am looking forward to: getting the K2 on the air and a shower! Can't shower with the cast on! I'm gettin' gammie, Cletus! One other idea: has anyone tried marrying a Communications Concepts transistor linear up with a K2? They make several versions up to and incuding a 180W linear amp. These are PC boards and partial parts kits, not actual kit linears, so they fall within the FCC guidelines for ham linears that cover 10-11 meters. vy 73 Rich K7SZ ___ 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] Morse on the Tonight Show, Tonight, Friday the 13th
[EMAIL PROTECTED] wrote: Oddly enough, I've encountered many a cell phone that announces an incoming text message by sending SMS - in Morse! These phones are probably manufactured by a small unknown finnish company ;-) where a rather well-known finnish ham (OH2BH) works. Those same phones will happily spell the company motto in code when the active ringtone is LongLoud. As an exercise to the reader, work out the name of the company 8-) I actually bothered to create a special ringtone that says QRZ? and assigned it the HAM caller group 8-) B73, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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
Morse cell phones was [Elecraft] Morse on the Tonight Show,
-Original Message- I have a Nokia 6360 that alerts me to incoming messages with a nice, slow CW 'SMS'. This was the default when I got the phone several years ago. It is definitely a feature! --- There is another SMS alert in there as well: 'Connecting people', at least it has been there in all the Nokia phones that I have had. I believe there is a correlation between the relatively large and active Finiish ham population and Nokia, but maybe some Finnish hams on this list could comment on this? 73 Sverre LA3ZA http://www.qsl.net/la3za/ ___ 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] ZUT
Many thanks to the guys who made this available for download. I watched it several times yesterday and really enjoyed it. Those CW guys were great and pleased to say I could actually copy the code between the local QRM, real cool Ops, but I could never have done that live under those conditions. Nice to see the Bencher and the time taken to adjust it's position on the desk before beginning to send! Great stuff... 73 Deni F5VJC / GM3SKN ___ 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 4686
Well.it is hard to believe but K2 #4686 is alive and well! For some two to three years I had dreamed of building a K2, but for lack of funds and fear of failure I kept putting it off. Finally, the itch got to be to much for me. So, back in February I called Lisa and placed my order. Except for a couple of small miscues on my part the build went without a hitch! I made my maiden SSB contacts yesterday and am setting up a sked for my maiden CW contact. Is it OK if I stick out my chest and get a little puffed up with pride?! grin Thanks Elecraft for making quality kits that we rank amateurs can build and make work! -- 73 God Bless, Ken/NO4D http://webpages.charter.net/kgk Ambassadors For Christ Net +/- 7.280 M-F at 2:00 EST Sat at 3:00 EST ___ 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
FW: [Elecraft] K2 4686
Please, don't leave out we file amateurs! g Dan / WG4S / K2 #2456 snip Thanks Elecraft for making quality kits that we rank amateurs can build and make work! /snip ___ 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] Room Available for Dayton - Troy OH
Folks: I have one (1) non-smoking (supposedly double-double bed) room available for the nights of May 19 thru 21 at the FairField Inn in Troy OH, about 15 miles north of I-70 (and Dayton). $84/night. We've been staying there for the past 5-6 years with no complaints. If you are interested, please contact me immediately. Tom Hammond, N0SS 573-893-2813 / 573-893-2813 I will post to this reflector (Elecraft) as soon as the room is taken, so please check your e-mail before you call. 73, Tom ___ 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] Rosin
Rosin is extracted from pine sap and has a characteristic pine odor...It is organic, but is not water soluble, as anyone who has gotten pin sap on their hands can testify to...Hot water and soap will not easily remove it from your hands, a solvent is needed...I have never seen solder with water soluble flux referred to as having water-soluble ROSIN, only a water soluble flux core... The purpose of any flux is to chemically clean the joint of oxides and impurities...With some fluxes the chemical reaction will continue if it is not cleaned off, spurred on by atmospheric humidity... It is very risky using acetone to clean up PCB's since acetone dissolves many plastics and can ruin relays, connector headers, jacks, and some capacitors...Acetone is often used as a cement because it softens some plastics allowing welding of the parts... If one MUST remove rosin flux, the safest solvent is isopropyl alcohol...It best to clean as you go and not wait until the board is finished and then try to clean the whole thing at once...Using an acid brush, it cleans off easier while the joint is still warm...99% isopropyl is best, but you can use the drug store stuff if you take the time to wipe/dab the joint dry with a soft cotton cloth, which I always do anyway...Letting it air dry will leave a residue... Jerry, wa2dkg ___ 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] Hamfest
To all list members: If you are coming to Dayton, plan on at least one day of rain - bring your coats! Mike ___ 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] Morse on the Tonight Show, Tonight, Friday the 13th
On Sun, 2005-05-15 at 08:46 +0200, Andrea Borgia wrote: [EMAIL PROTECTED] wrote: Oddly enough, I've encountered many a cell phone that announces an incoming text message by sending SMS - in Morse! These phones are probably manufactured by a small unknown finnish company ;-) where a rather well-known finnish ham (OH2BH) works. Those same phones will happily spell the company motto in code when the active ringtone is LongLoud. As an exercise to the reader, work out the name of the company 8-) I actually bothered to create a special ringtone that says QRZ? and assigned it the HAM caller group 8-) Actually my cell phone (or as the europeans say mobile) has a tag inside saying Hecho en Mexico which I assume is the Finnish way of spelling Finland. I think the company name was taken from a protest sign opposing a brand of cars made in South Korea. 73, Bob N7XY ___ 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] 30L-1 Part?
I have 30L-1 which is many years old. The Safety Interlock Assembly(s), (3 of them) have finally given up the ghost and broken off. I need a source, any ideas? I have check w/Google with the Collins part number 547-3632-002 and Surplus Sales of Nebraska..no luck. The assemblies are copper, silver plated and measure 11/16 x 3/4 in. by 1.312 in. Other than have to manufacture my own, does anyone here have a couple sitting in old junk boxes? Tnx 73 Tom K6CT ___ 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] 12m alignment failure, C44 /or C46 dirty wipers?
Everything was going fantastic with the final alignment until 12m then nothing. Only 0.2 indicated no matter how I adjust C44 or C46. Quick search of the archives and a look at the schematics points to soldering, C44, C45, C46, soldering, K6, VCO or soldering as potential causes. Pulled off the bottom plate, got out the magnifying headgear and scrutinized every joint. Beautiful joints, nice smooth fillets on both sides, even got out the alcohol and cleaned 'em up a bit more. Checked TP1 at 24890 and got 19975.75 so the VCO is fine. Set to 24900, hit TUNE, still 0.2, tweak C44 a bit then BAM 4.6, a few more iterations between C46, C44 and she's peaked at 2.1 as requested by the power setting. So hu, could the wiper on C44 have been dirty or something? I know I twisted both the full range when it first failed. Interesting but happy ending. Hope this tid-bit may prove useful to someone else. 73, Paul KI4BIO ___ 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] Organic Rosin Core Solder
envoromentally friendly solvent you obvoiusly haven't seen the facts at http://www.dhmo.org/ :- ) I ask this in all seriousness; and with no disrespect. But am I missing something here? Why would folks use this stuff if it's such a pain in the butt? I believe that it's normally used with automated soldering equipment, and the boards are washed in a hot water bath after soldering. I presume (I'm sure Lyle or someone knows for sure) that the advantage is that the flux can be removed without using environmentally dangerous solvents. That's correct. Water is an environmentally friendly solvent (at least for now :-) It does an excellent job of cleaning the surfaces to be soldered. It cleans well (as long as you do it quickly!), so joints can be inspected. It is (or was) not considered hazardous. It acts like soap - you get suds as you wash/scrub the board. It is not recommended for kit building because of the dangers of corrosion. In automated work,the boards are exposed to the flux, then a wave of molten solder, over a period of some few to tens of seconds. It is then rinsed thoroughly. The organic cored solder was probably intended mostly for touch-up and rework. 73, Lyle KK7P ___ 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 Almost Ready
I use a K5OOR Mosfet amplifier I built, with my K2 and KX1. I get about 50W out with 2.5W in. 73, Leigh / WA5ZNU On Sat, 14 May 2005 11:01 pm, [EMAIL PROTECTED] wrote: ...Communications Concepts transistor linear up with a K2? ___ 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] More Clarifications on the Tonight Show - from K6CTW
*A few more points for clarification: When my XYL, Connie, originally answered the call, at my home, from the producers of the show, she explained that I operated both codes and that I considered myself to be a good but not exceptional operator. However, she is the one who sold the producers that the skit could work. She also did a VERY credible job of explaining Morse telegraphy and the radio code and its uses. (You all might think to send her a thanks too as without her, this would never have happened [EMAIL PROTECTED] ) When they contacted me later that afternoon, I explained that my wife was correct, I am a competent CW and Morse operator. Your point is interesting in that they did try and get the fastest text messengers they could fly in. I did however explain that if the Tonight Show folks had been able to get the equivalent world record holder in CW to do this, it would have been at almost TRIPLE the speed we were going at. The reason, as I have explained before, that we worked at about 28 or so wpm is that this is the fastest speed that I can make nice readable copy with a pencil as they did not have the ability to let me use a typewriter for copy (and I thought they were going to do a camera shot of my copy for verification). Also, since we did not have the time to set up headphones, I just added some extra volume for me, had the stage folks cut my mike (to prevent feedback and overload) and copied off of the speaker. To re-emphasize the point, I'm just an average CW op who occasionally operates the CW SS QRP, whith my K2 of course, and really enjoys CW, and traffic handling. By the way, the radios used were Chip's not from Yaesu and the backup radios were from HRO. 73, Ken, K6CTW * ___ 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] More Clarifications on the Tonight Show - from K6CTW
Outstanding, Ken! When I wrote Chip yesterday, I asked him if those were K2s the two of you were using. ;-)) Cheers, Rod K5BGB - Original Message - From: Ken Miller, K6CTW [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, May 15, 2005 12:14 PM Subject: [Elecraft] More Clarifications on the Tonight Show - from K6CTW *A few more points for clarification: When my XYL, Connie, originally answered the call, at my home, from the producers of the show, she explained that I operated both codes and that I considered myself to be a good but not exceptional operator. However, she is the one who sold the producers that the skit could work. She also did a VERY credible job of explaining Morse telegraphy and the radio code and its uses. (You all might think to send her a thanks too as without her, this would never have happened [EMAIL PROTECTED] ) When they contacted me later that afternoon, I explained that my wife was correct, I am a competent CW and Morse operator. Your point is interesting in that they did try and get the fastest text messengers they could fly in. I did however explain that if the Tonight Show folks had been able to get the equivalent world record holder in CW to do this, it would have been at almost TRIPLE the speed we were going at. The reason, as I have explained before, that we worked at about 28 or so wpm is that this is the fastest speed that I can make nice readable copy with a pencil as they did not have the ability to let me use a typewriter for copy (and I thought they were going to do a camera shot of my copy for verification). Also, since we did not have the time to set up headphones, I just added some extra volume for me, had the stage folks cut my mike (to prevent feedback and overload) and copied off of the speaker. To re-emphasize the point, I'm just an average CW op who occasionally operates the CW SS QRP, whith my K2 of course, and really enjoys CW, and traffic handling. By the way, the radios used were Chip's not from Yaesu and the backup radios were from HRO. 73, Ken, K6CTW * ___ 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] More Clarifications on the Tonight Show - from K6CTW
Oops her is the site that has the file - sorry Tom http://www.kkn.net/~n6tv/Text_vs_Morse_Leno_2005_05_13.wmv - Original Message - From: Tom McCulloch [EMAIL PROTECTED] To: Ken Miller, K6CTW [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Sunday, May 15, 2005 1:36 PM Subject: Re: [Elecraft] More Clarifications on the Tonight Show - from K6CTW Ken, Cool, really, really cool! Great job. Those guys text messaging mentioned that they set the record by sending about 160 characters in just under a minute. That comes to about 32 wpm, not counting wherever it goes to get relayed around. Here is site that has a file of the segment...forwarded to me by Jeff WB5GWB in our local group. Thanks agn. Tom WB2QDG K2 1103 - Original Message - From: Ken Miller, K6CTW [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, May 15, 2005 1:14 PM Subject: [Elecraft] More Clarifications on the Tonight Show - from K6CTW *A few more points for clarification: When my XYL, Connie, originally answered the call, at my home, from the producers of the show, she explained that I operated both codes and that I considered myself to be a good but not exceptional operator. However, she is the one who sold the producers that the skit could work. She also did a VERY credible job of explaining Morse telegraphy and the radio code and its uses. (You all might think to send her a thanks too as without her, this would never have happened [EMAIL PROTECTED] ) When they contacted me later that afternoon, I explained that my wife was correct, I am a competent CW and Morse operator. Your point is interesting in that they did try and get the fastest text messengers they could fly in. I did however explain that if the Tonight Show folks had been able to get the equivalent world record holder in CW to do this, it would have been at almost TRIPLE the speed we were going at. The reason, as I have explained before, that we worked at about 28 or so wpm is that this is the fastest speed that I can make nice readable copy with a pencil as they did not have the ability to let me use a typewriter for copy (and I thought they were going to do a camera shot of my copy for verification). Also, since we did not have the time to set up headphones, I just added some extra volume for me, had the stage folks cut my mike (to prevent feedback and overload) and copied off of the speaker. To re-emphasize the point, I'm just an average CW op who occasionally operates the CW SS QRP, whith my K2 of course, and really enjoys CW, and traffic handling. By the way, the radios used were Chip's not from Yaesu and the backup radios were from HRO. 73, Ken, K6CTW * ___ 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
[Elecraft] K-2 for Trade or Sale
Looking to trade my excellent condition Elecraft K-2 for a similar condition FT-897D, preferably with some accessories such as the DTMF mic. My K-2 was built by an electronic tech (not me) and works flawlessly. No scratches, dents, marks, etc. and never taken portable. Comes equipped as follows: K2 SN 32XX KSB2 SSB option MH2 Heil Hand Mic K160RX 160M option KNB2 Noise Blanker option KAF2 Audio Filter option KAT2 20W Internal ATU option KIO2 RS-232 Interface option KBT2 Internal Battery option Price if no trade occurs is $925 shipped in CONUS. 73, Steve, N4EUK ___ 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] Santa Cruz Sentinel article on Elecraft
Well, look what was in the morning paper... http://www.santacruzsentinel.com/archive/2005/May/15/biz/stories/01biz.htm ___ 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] Santa Cruz Sentinel article on Elecraft
After all the film clips on TV of 80 year old hams hanging by one foot from the top of their tower, it was refreshing to see a well-written, well-researched, fair and accurate story about the hobby. Her email address is at the end of the story. Use it. Eric KE6US -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ward Willats Sent: Sunday, May 15, 2005 10:45 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Santa Cruz Sentinel article on Elecraft Well, look what was in the morning paper... http://www.santacruzsentinel.com/archive/2005/May/15/biz/stories/01biz.htm ___ 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 Filter attenuation?
I have spent hours tweaking the CW filters on my K2 and am not sure that they are all that good yet. (I am in no hurry to complete this radio, my actual goal is to build a K2 that is comparable to the best). I built a K2 five years ago and do not recall filter attenuation like what I am experiencing on this new one.. To give you an idea what I am seeing I have posted a spectrogram screen shot with all three filters superimposed on each other. Does it look typical to you? CHART setup = Center freq is 570 hz (My favorite spot for CW) AGC is OFF. Noise source is a Palomar R-X Noise bridge. Audio is measured from the headphone jack. L34 is peaked Chart can be viewed at http://www.vtc.net/~ken/filters.jpg Here is what I have done so far. 1: I have CAREFULLY inspected T7 ensuring that: a: It has 20 turns red and 5 turns green b: Pin 3 is sourced from inner red wire Pin 1 is sourced from inner green wire (exactly as per diagram 6-18 in manual) c: Each of its solder joints are shiny and good. I reheated them (twice). There is no apparent PTTL 2: Inspected X7 - X11 = a: Each are labeled 4.9136 - S (verified) b: Each have good shiny solder joints c: Each have two excellent ground connections (on each side). 3: Carefully peaked L34 with AGC off (it peaked exactly one turn down from the top) Ken Lotts aa7jc ___ 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] Continental Code Wins on TV!
Ken, Do you have an e-mail link to Leno for that? Enjoyed the getup you guys had on! I laugh at people who say Morse is obsolete! It is still one of the BEST message handling modes there is, even if you can't read and understand the language! Try that on ANY voice mode you no-coders! 73, Sandy W5TVW - Original Message - From: Ken Miller, K6CTW [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Saturday, May 14, 2005 9:39 PM Subject: [Elecraft] Continental Code Wins on TV! | All, | | Well to answer some of the questions I have received: | | 1. Ben was just getting ready to start entering the last 2 words when I | was done. | 2. None of us had any idea of the text we would be sending, not only for | the show but also for the 3 rehersals (in which we smoked em every time) | 3. Chip, K7JA was sending and I, Ken, K6CTW was receiving. | 4. The radios were FT-817's provided by Chip's company Yaesu and HRO. | Reason for that choice was that we needed the most frequency agile | radios we could get. When I talked to the technical folks, they | recommended we START at 2 meters and go up because of all of the lower | frequency noise and RFI from the other TV equipment. When I got there, | we took out a spectrum analyzer and studied all of the interference | possibilities. I ended up choosing 432.200 MHz because that guaranteed | no RFI from their equipment and we were high enough not to overload | their front ends either. This was then verified and it was what we were | using at the FT-817's lowest setting. | 5. I already knew that 28-30 wpm would easily keep us in front of even | the current world record holder, and also it is the fastest speed that I | can make nice readable copy on paper with a stick. | 6. The telegrapher costumes were the producer's idea but it was fun | for both Chip and I. | 7. In rehersal I, K6CTW had a number of lines which would have really | done a nice job of plugging ham radio and telegraphy however at our last | dress rehersal, they decided to cut them out to make the segment fit. | (maybe next time). | 8. I decided that I would be the receiver because I'm not bothered by | crowd noise etc. | | If you enjoyed the segment, PLEASE email, write, etc. to let The | Tonight Show know about it. That way we may have a chance for a bigger | segment next time. | | Thanks for the kind comments from all and let's keep on having fun! (It | is a hobby after all). | | 73, | | Ken, K6CTW | | | | | ___ | 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] charger
Why doesn't Elecraft put a gel cell charger kit out for the K2 users??? N2DH ___ 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] Santa Cruz Sentinel article on Elecraft
Gwen's on vacation, y'all...I just got an automatic notification from her bot that she won't be back until after the 20th. So how about we fill her mailbox with well-wishes and kudos and plaudettes for the great article? :-) -- Buddy Brannan, KB5ELV : Co-Mod. of http://www.assist.com/Pennsylvania - Join for free: Join our Watkins team by May 27th and receive your startup costs back in Watkins gift certificates! Join for extra income or your personal 25% discount: http://www.tastybiz.com - Protect Your Family From Disease: glyconutrients help your body repair, defend, and correct itself. MIT says this discovery will change the world: http://www.theoptimalhealthsolution.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] Santa Cruz Sentinel article on Elecraft
The paragraph that caught my eye said: The company hopes to continue its growth and perhaps expand its headquarters in the near future, and it has a lot of stuff in development, according to Swartz, who said new radios and accessories are in the pipeline. I am very curious what the new stuff is so , Eric, if you will whisper it in my ear, I promise not to tell anyone. John [K7SVV] On 5/15/05, Ward Willats [EMAIL PROTECTED] wrote: Well, look what was in the morning paper... http://www.santacruzsentinel.com/archive/2005/May/15/biz/stories/01biz.htm ___ 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 -- John [K7SVV] ___ 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)
Unless the WX report changes this is the report so far Thu - thunder showers 63 hi/51 lo 40% chance of precip Fri - partly cloudy67/51 20% Sat - partly cloudy 73/57 10% Sun - showers 74/57 60% I plan to be there on Friday which should not be too bad and Sat. looks the best. I am used to the rain for it rains everytime I am there. I remember well 2001... Now for the big question. What is the number of the booths were Elecraft will be? Paul Gates Elecraft K1 #231 XG1 [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] Santa Cruz Sentinel article on Elecraft
On Sun, 2005-05-15 at 12:58 -0700, John [K7SVV] wrote: The paragraph that caught my eye said: The company hopes to continue its growth and perhaps expand its headquarters in the near future, and it has a lot of stuff in development, according to Swartz, who said new radios and accessories are in the pipeline. I am very curious what the new stuff is so , Eric, if you will whisper it in my ear, I promise not to tell anyone. And if you email it via the list, the rest of us promise not to look! Bob, N7XY ___ 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] Photo correction suggestion.
I am now building the K2 (Nr 4875) and KSB2 ssb module. I notice that the pictures shown on the Elecraft web site are not up to date and according to the instructions. For example, they show R11 mounted on the component side and the instructions say to mount it on the other side. The construction pictures taken by PA3CEV are of an older version of the K2. I strongly suggest that Elecraft put up to date pictures on the web site. That surely would help builders of the otherwise fine products! Yves Dussault-VE2ATD Laval, Québec. 450 661-0768___ 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] Santa Cruz Sentinel article on Elecraft
Buddy Brannan wrote: Gwen's on vacation, y'all...I just got an automatic notification from her bot that she won't be back until after the 20th. So how about we fill her mailbox with well-wishes and kudos and plaudettes for the great article? :-) Been there, done just that 8-) Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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] Tuner losses
Charles, Thanks for correcting me. Sorry that it's been a while since I looked at the Elecraft balun on their web page. I forgot that it was a current balun. 73, Andy - Original Message - From: Charles Greene [EMAIL PROTECTED] To: Andrew Catanzaro [EMAIL PROTECTED]; Elecraft@mailman.qth.net Sent: Sunday, May 15, 2005 6:57 AM Subject: Re: [Elecraft] Tuner losses Andrew, I beg to differ that the LDG: 4:1 balun and the Elecraft 4:1 balun are similar, or even close. The LDG 4:1 balun is a voltage balun. I don't have one, but I have its schematic. The Elecraft 4:1 balun is a current balun, plus the fact that it is wound on a binocular core. The core materials are different. If fact, the only similarity is that both are 4:1 baluns. The major difference between a current balun and a voltage balun is the frequency coverage. ___ 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 and single-lever paddles?
Hello. Right now I am happily using a straight key with my KX1 as I can't seem to get the hang of paddles (that and the fact that pounding brass feels good ;-) Since I found a single-lever paddle that may be used as a cootie-key of sorts (see here: http://www.mtechnologies.com/cootie.htm), I was wondering if I could catch two birds with the proverbial one stone: -with the KX1 in straight key mode, paddle used as cootie-key (jumpering the two posts together) -with the KX1 in paddle mode, paddle used normally, for example to enter data in keyer memory or maybe one day for real 8-) Question is, does the KX1 internal keyer really care about the paddle being a normal dual-lever model or a single non-iambic one? (backup question: was the question above really dumb? ;-) TIA, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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] Santa Cruz Sentinel article on Elecraft
John [K7SVV] wrote: I am very curious what the new stuff is so , Eric, if you will whisper it in my ear, I promise not to tell anyone. John [K7SVV] Maybe some of the new stuff will be unveiled next week at that 'lil tiny ol' Hamfest they have in Dayton each year? :) 73 de Larry W2LJ ___ 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 attenuation?
Ken Lotts wrote: To give you an idea what I am seeing I have posted a spectrogram screen shot with all three filters superimposed on each other. Does it look typical to you? It looks fine, although I would move the two wider filters a bit to the right. There looks like about 6-8 db difference in attenuation between the widest and narrowest filters, which is probably on the high side of normal (although this tends to vary). I see about 4 db on mine, which is #709 but has had the crystals replaced and T7 rewound to current spec. I would be interested in knowing how much difference in attenuation others are seeing. I know that K1JD has an ANCIENT K2 (field test vintage) which has zero db difference! -- 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] The Tonight Show with Jay Leno, Contact/QSL Info
For those who want to send a note/QSL to Jay Leno, the address is as follows: The Tonight Show with Jay Leno 3000 W. Alameda Ave. Burbank, CA 91523 ___ 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 and single-lever paddles?
The KX1 would never know that you connected a single-lever paddle vs. a dual-lever paddle. Dual-lever paddles are not necessarily normal. They are just more common. BTW, you suggested you were having a little trouble with iambic keying. Don't feel bad. I did a little informal survey at the last club meeting among the known cw ops there. Out of an even dozen of us, all used a dual-paddle paddle. Only two used either iambic mode. One of those using iambic was relatively new to ham radio, the other had been a cw op for 30 years. The rest of us had been cw ops for 20-48 (me) years. Frankly, iambic keying seems to take an awful lot of effort to learn just to send 4 letters with less energy. If you're having problems with it, don't worry about it. Concentrate on well-formed Morse with whatever you are comfortable with. The important thing is to get on the air and built experience. Eric KE6US -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrea Borgia Sent: Sunday, May 15, 2005 2:00 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] kx1 and single-lever paddles? Question is, does the KX1 internal keyer really care about the paddle being a normal dual-lever model or a single non-iambic one? (backup question: was the question above really dumb? ;-) TIA, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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] New Stuff for K2 #402
Hi all, For joy, for joy! _FINALLY_ got some new things for my K2 #402. I can't imagine it being better than it is now, but I am going to spend a lot of time making it the best possible. New things are: KAT100-2 KDSP2 KIO2 KPA100 SSB Mod Kit (PSK31) SSBCAPKT XFILMDKIT EC2 K2ATOBKT K2KEYMDKT K2KSB2XTLS FWK2MCUIO BFOMDKT E850138 It already has the noise blanker and ssb and KAT2, so I think it will be maxed out. Regards, Steve, W2MY/5 http://users.ev1.net/~spituch/, Corpus Christi, TX, ELl7 QRP/ARCI 8351, FPQRP 1025, NJQRP 25, QRP-L 269, FISTS 3150, ARS 142, NEQRP 281, NWQRP ??, 10-10 61720, NORCAL 691, K2 #402 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.10 - Release Date: 5/13/2005 ___ 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] (no subject)
Thanks for the WX report Paul: For a SITE MAP to the Elecraft booth at the Dayton HamVention this weekend, go to www.n0ss.net and you'll find the link just below my Quik-Links. Just click on the small map to view the larger one. I hope to see a LOT of Elecraft owners there, and at FDIM as well. 73, Tom HammondN0SS ___ At 02:58 PM 5/15/05, Paul Gates wrote: Unless the WX report changes this is the report so far Thu - thunder showers 63 hi/51 lo 40% chance of precip Fri - partly cloudy67/51 20% Sat - partly cloudy 73/57 10% Sun - showers 74/57 60% I plan to be there on Friday which should not be too bad and Sat. looks the best. I am used to the rain for it rains everytime I am there. I remember well 2001... Now for the big question. What is the number of the booths were Elecraft will be? Paul Gates Elecraft K1 #231 XG1 [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] kx1 and single-lever paddles?
EricJ wrote: The KX1 would never know that you connected a single-lever paddle vs. a dual-lever paddle. Ah, good! I was worried about the squeeze being required to form some characters. BTW, you suggested you were having a little trouble with iambic keying. trouble is quite an understatement: every time I try it, I get worked up in a way I never experienced when learning code with the straight key. Oh well... years. The rest of us had been cw ops for 20-48 (me) years. Frankly, iambic keying seems to take an awful lot of effort to learn just to send 4 letters with less energy. I'll try asking a similar question at the next club meeting but I suspect everybody uses iambic here, new ops included. By the way, when I met Lazlo HA3NU (a guy who sets the keyer to 60wpm and calls it slow ;-) at a big italian hamfest in Pordenone a few weeks ago, he said he preferred single lever paddles, especially for truly extra-high speeds. Your comments and his, taken together, have convinced me that all is well 8-) B73, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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 and single-lever paddles?
[EMAIL PROTECTED] wrote: This is a simple conversion of the KX1 iambic paddle (KXPD1) to a single lever paddle. Your suggestion is quite interesting indeed, but unfortunately I didn't buy the KXPD1 so I can't try your idea. I did test-drive one KXPD1, though, and I found it trickier to handle than any other paddle I've set my fingers on (a couple of Benchers and the whole Begali product line, IIRC). B73, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ 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] (no subject)
I am sure this is subject to change...if there was ever a place that if you didn't like the wx, then just wait a minute, Dayton is it. Enjoy de 2577 - Original Message - From: Paul Gates [EMAIL PROTECTED] To: elecraft elecraft@mailman.qth.net Sent: Sunday, May 15, 2005 3:58 PM Subject: [Elecraft] (no subject) Unless the WX report changes this is the report so far Thu - thunder showers 63 hi/51 lo 40% chance of precip Fri - partly cloudy67/51 20% Sat - partly cloudy 73/57 10% Sun - showers 74/57 60% I plan to be there on Friday which should not be too bad and Sat. looks the best. I am used to the rain for it rains everytime I am there. I remember well 2001... Now for the big question. What is the number of the booths were Elecraft will be? Paul Gates Elecraft K1 #231 XG1 [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 ___ 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] 12m alignment failure, C44 /or C46 dirty wipers? Oops
Oops, after I sent this I realized variable caps don't have wipers like a pot does. Oh well, still wondering why it suddenly started to function. From: Paul [EMAIL PROTECTED] Sent: Sunday, May 15, 2005 11:46 AM To: elecraft@mailman.qth.net Subject:12m alignment failure, C44 /or C46 dirty wipers? Everything was going fantastic with the final alignment until 12m then nothing. Only 0.2 indicated no matter how I adjust C44 or C46. Quick search of the archives and a look at the schematics points to soldering, C44, C45, C46, soldering, K6, VCO or soldering as potential causes. Pulled off the bottom plate, got out the magnifying headgear and scrutinized every joint. Beautiful joints, nice smooth fillets on both sides, even got out the alcohol and cleaned 'em up a bit more. Checked TP1 at 24890 and got 19975.75 so the VCO is fine. Set to 24900, hit TUNE, still 0.2, tweak C44 a bit then BAM 4.6, a few more iterations between C46, C44 and she's peaked at 2.1 as requested by the power setting. So hu, could the wiper on C44 have been dirty or something? I know I twisted both the full range when it first failed. Interesting but happy ending. Hope this tid-bit may prove useful to someone else. 73, Paul KI4BIO ___ 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 current draw
I just noticed an interesting thing about my K2/100: the current drawn by the low-power part of the K2 (that's the current measured when you tap DISPLAY) is extra high on one band: 20 meters. When I'm running 100 watts out, the current displayed varies from about 2.2-2.8 amps on all bands other than 20. On 20, it's 3.5 amps. My first thought was that the bandpass filter was misaligned on 20. Sure enough, after adjusting L7 and L8 on 30 meters, the 20-meter trimmers were at minimum capacity when the output peaked. I had to add an 8 pf capacitor across one of them and a 27 pf capacitor (!) across the other in order to have the peak fall in the adjustment range of the trimmer. Very suspicious. After doing this, I verified that the current draw when running 10 watts on 20 meters was in line with the other bands. But when running 100 watts, I still get 3.5 amps! Something funny is going on. Why was I unable to get a peak on 20 without extra capacity across the bandpass filter trimmers? And why is the current drawn at 10 watts normal, but high at 100 watts? This is not something new, I've just ignored it until now! -- 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] K2 current draw
Vic The bandpass filter alignment merely assures you have adequate drive to the PA. The LPF will have more effect on the PA current, as it determines whether you have a match between the load the and PA. 73, Bob N6WG -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Vic Rosenthal Sent: Sunday, May 15, 2005 3:39 PM To: Elecraft Reflector Cc: Gary Surrency Subject: [Elecraft] K2 current draw I just noticed an interesting thing about my K2/100: the current drawn by the low-power part of the K2 (that's the current measured when you tap DISPLAY) is extra high on one band: 20 meters. When I'm running 100 watts out, the current displayed varies from about 2.2-2.8 amps on all bands other than 20. On 20, it's 3.5 amps. My first thought was that the bandpass filter was misaligned on 20. Sure enough, after adjusting L7 and L8 on 30 meters, the 20-meter trimmers were at minimum capacity when the output peaked. I had to add an 8 pf capacitor across one of them and a 27 pf capacitor (!) across the other in order to have the peak fall in the adjustment range of the trimmer. Very suspicious. After doing this, I verified that the current draw when running 10 watts on 20 meters was in line with the other bands. But when running 100 watts, I still get 3.5 amps! Something funny is going on. Why was I unable to get a peak on 20 without extra capacity across the bandpass filter trimmers? And why is the current drawn at 10 watts normal, but high at 100 watts? This is not something new, I've just ignored it until now! -- 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 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
FW: [Elecraft] K2 Filter attenuation?
I checked mine, and also got zero attenuation. Then, I remembered to turn off the AGC. Results were much more believable, but still decent. My filters had much steeper skirts, tho, if memory serves (it usually doesn't). BTW, I'm running 2456's supplied crystals, and haven't looked at the toroids since they were installed. Let me check sent items, I know I said something last year. ... Found it! Do overs! What I really proved is that the AGC circuit works really wellg. Nobody spotted the error in my Setup, I.E., AGC OFF not specified. I just reran the test with AGC off. Results are still excellent, but not as perfect as I reported yesterday. Bandwidth Setting Peak 0.00 -41 0.10 -35 0.20 -34 0.30 -31 0.40 -30 0.50 -29 0.60 -29 0.70 -29 0.80 -30 0.90 -31 1.00 -30 1.25 -32 1.50 -32 1.75 -33 2.00 -34 2.25 -32 2.49 -33 OP1 -36 My perception of No Attenuation comes from my standard practice of cycling between 0.90, 0.50 and 0.20 (-31, -29 and -34 respectively) plus the AGC working made me think it was flatter than it is. However, 5db isn't too bad if the S9+ interfering signal disappears. Dan / WG4S / K2 #2456 snip It looks fine, although I would move the two wider filters a bit to the right. There looks like about 6-8 db difference in attenuation between the widest and narrowest filters, which is probably on the high side of normal (although this tends to vary). /snip ___ 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] Elecraft Net Report for May 15-16th, 2005
Good Evening, Once again the Elecraft net was not skunked. Conditions were rather weak but a few folks braved them and were recognized. I am sure there were others out there under the noise but I was not able to hear you. But this is not too bad a showing considering the CME which smacked the ionosphere last night. The pictures on http://www.prairiejournal.com/northern_lights/051505.htm are pretty spectacular. Maybe soon I'll be closer to the Magnetic North Pole and will be able to enjoy these sights in the night sky. Tom heard me on the first net and gathered in a new one for us. Both a new op and a new area. I am not sure but it appears KP4GL was in Puerto Rico! We'll see when all the dust settles; he may have been visiting the lower 48 instead. On 14055 kHz at 2253z: N0SS - Tom - MO - K2 - 008 KP4GL - Carlos - PR - K1 - 1253 AB9V - Mike - IN - K2 - 3993 W0CZ - Ken - ND - K2 - 1031 K5HO - Jim - TX - K1 - 1453 On 7045 kHz at 0200z: N0SS - Tom - MO - K2 - 008 W0CZ - Ken - ND - K2 - 1031 N9IV - Russ - IN - K2 - 4650 If there are any errors in the above lists please let me know. I am pretty sure I got all the call signs correct but a couple of you were pretty weak and the QSB did not help any. Only three weeks until the second anniversary of the Elecraft CW Net. I hope the conditions allow us to meet with as many previous guests as possible. Thanks again for the attempt. If I did not hear you I am very sorry I will try harder. 73, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.10 - Release Date: 5/13/2005 ___ 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] 7182 buzz appears after K69XV installed
The PROBLEM Installed the K60XV and the old 7182 (7181 -7184 ) Buzz appears. Just like a bad penny. Jack W4EFZ related to me that this was an old problem. The buzz is caused by the LO and Reference frequency being co-incident in the 12 Mhz range when the radio was tuned around 7182 and coupling back into the PLL. My K2 did not exhibit this problem until K60XV mods were made, Proper PLL voltages across all bands were also difficult to obtain. Investigation of the original fix raised some question about component values chosen for the PLL VCC filter (100uh and .001uf). Looking at the specs on 100uh molded inductors of the physical size used that are available from several manufactuers revealed that the self resonant frequencies were in the 12 to 14 Mhz range. As I recall an inductor at SRF and above has a low impedance (Atleast that's what I recall). It seems that this is just the opposite of what one would want to keep the LO frequency out of the PLL VCC supply pin How it was cured 1) After much thought, I decided that an inductor with an SRF above the highest LO frequency (about 25 Mhz) would be best... Also I wanted to shorten the lead length as much as possible. An SMT inductor was chosen with a value of 18uh and SRF of 27Mhz. Its foot print is a 1210 size (120mils x 100 mils) and fit perfectly between the VCC pin of the PLL chip and the VCC buss. 2) After a little more thought I decided to increase the bypass capacitance. I just picked a .033uf as it was the first one greater than .01uf and less than 0.1uf in the supply box that I came up with. It is in a 1206 size case and is just long enough to reach from the PLL chip VCC pin to the ground via originally used. 3) I also added a 0.1uf capacitor (0805 size) from the VCC buss to the same ground via. The solder resist will need to be removed from the VCC buss trace in order to install. The 0805 fit perfectly. 4) Reading the fix for the 7182 buzz, there were instructions to trim PLL chip leads an keep lead lengths short. The added 68 pf capacitor used had short leads,, but it looked like a big old lollipop antenna sitting there. It was replaced with a SMT 0805 68pf NPO capacitor. The 0805 fit nicely between the PLL chips' leads. 5) Looking at the two varicaps and 10k resistor added for 60 meter coverage, which were supplied with the K60XV, and again remembering something about shorts leads,,, They were replaced with SMT components. Two MMVL109 varicaps in SOD23 package and a 10K 1206 packaged resistor were used. The lead lengths were reduced considerably as a result, plus the components are now right down on the PWB surface. The payoff. 1) NO MORE 7182 BUZZ (PERIOD) 2) The PLL voltages on all bands came up considerably. After setting up the PLL (L30) on 160 and 80 meters, all other bands fell into place and WELL with the specified ranges with plenty of margin. No difficulties at all. Do not try this at home Unless you have a GOOD microscope (No, NOT the one your kid got with their biology set for Christamas last year), or EXTREMELY GOOD maginifier, or the eye of the 6 million dollar man, AND good soldering SKILLs, AND the proper soldering tools, I would not reccommend trying to make this change as oulined here. The parts are VERY SMALL. I used a 2 to 10x inspection microscope and soldering rework station at my work. Unless you ARE having the PLL problems outlined, I would not reccommend making this change. If it ain't broke, don't fix it. If you need this fix Get the proper tools, and have the proper skills, or find the proper experienced help. Changing the leaded conponent values to meet the criteria outlined above would probably suffice in the PLL VCC filter. Keep ALL leads on ALL changes made with the leaded components as SHORT as possible. Use a smaller 68pf leaded capacitor on the PLL. For your reading, some applicable information. http://focus.ti.com/lit/an/scaa048/scaa048.pdf http://www.analogzone.com/hft_1124.pdf Food for thought Don't argue with success. 73 de 2577 ___ 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] Elecraft Net Report for May 15-16th, 2005
Kevin Rock wrote: Once again the Elecraft net was not skunked. Conditions were rather weak but a few folks braved them and were recognized. I am sure there were others out there under the noise but I was not able to hear you. Well, I was faithfully listening but heard exactly zero...afraid the conditions weren't quite a match for last time. Next time I'm able to hear you, I'll check in with my FT-847 @100W for the initial contact, and if you can hear me I'll switch to the K2 on the same antenna system and we'll see if that makes the trip. 73 de Maggie K3XS Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org Elecraft K2 #1641 -- -/___. _)Margaret Stephanie Leber CCP, SCJP/The art of progress / /(, /| /| http://voicenet.com/~maggie SCWCD/ is to preserve order/ ---/ / | / | _ _ _` _ AOPA 925383/ amid change and to / --/ ) / |/ |_(_(_(_/_(_/__(__(/_ K3XS / preserve change amid/ -/ (_/ '.-/ .-/ARRL 39280 /order.-A.N.Whitehead/ /(_/_(_/___AMSAT 32844_/[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
[Elecraft] FS: K1-4 will all the options
I have a K1-4 for sale with all the options. I am the original owner and built the rig in 2003. It is serial number 1456 and is set-up as follows: K1-4 configured for 40, 30, 20 and 17 meters KFL1-2 configured for 80 and 15 meters KAT-1 internal automatic antenna tuner KNB-1 noise blanker KTS-1 wide range tilt stand KBT-1 internal battery kit (not installed) I set it up for the tighter (80 kHz) tuning range. It also has the upgraded, precision, metal shaft VFO pot. Original manual and paperwork included. Price is $475, shipped anywhere in the U.S. I can email a jpeg image of the rig, if interested. Please contact me off-list. Thanks, John Pfeifer - KL0WN Kodiak, Alaska ___ 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] Elecraft K2, KDSP2
Hi, does anyone know optimized settings for denoiser beta and decay rate for use in SSB mode. Thanks for your answers in advance. 73, de OE8GVK, K2 serial number #4499 ___ 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
