[Elecraft] FS K2#2571
I built this K2 with great care and have enjoyed it very much. It is a proven preformer. I have worked all states QRP and worked 135 countries using it. It is a great rig, but I want to build another. So I offer this one for sale. It is in excellent condition and comes with many options. K2 - serial number 2571 Firmware upgraded to version 2.03d and 1.07 KNB2 - Noise Blanker KAF2 - Audio filter/clock KIO2 RS 232 Interface KSB2 - SSB KAT2 - 20 watt antenna tuner Serial cable Radioshack hand mic The K2 has teh following upgrades; BFOMDKT - BFO Toroid PLL Ref Osc Xtal Upgrade FWK2MCIO - K2 MCU IOC Upgrade K2ATOBKT - K2 Rev A to B Upgrade K2KSB2XTLS - Matched Filter Crystals XFLMDKT - 2nd Filter Upgrade . All manuals and documentation $895 + shipping/insurance. Please email if you have any questions Thanks Brent WB4X __ ___ 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] # 4472 receiver problem
Looks like I have a problem with a bad solder connection. Gary from Elecraft had me do some checks and as soon as my arm rested against the front panel the receiver came to life. I took the front panel apart and could not find any bad or missing solder connections on the control, rf, or front panel boards under inspection with a large lighted mag glass. Just for GP I touched the solder iron to all the pins for the connectors. When I put it back together I still had the same problem , dead receiver, after pushed down on the control , it came to life again. We are going away for the weekend, when I get back I will take it apart again and check,, maybe even have fresh eyes look at it. Gary recommended that I get the Cheap and Dirty Signal Tracing for the K2 off of their site... That is a very good tool for everyone to have. I will post earlier next week on my results,, hopefully I will be able to find the bad solder connection. Tnx for all the help Jerry , n2uz [EMAIL PROTECTED] 2004-10-29 ___ 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] A K2 QRP SSB DX WEEKEND !
CQ WW SSB is this weekend. DX from around the world will be on listening carefully for those weak calls for an extra point or two. A perfect chance for QRP stations to work the world...I worked HC8L yesterday on 15 CW with 500mw. N6ZZ there with several other CA ops...These guys have EARS. Have fun...73, Art W6KY ___ 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] Newbie K2 questions
Sorry for the off-topic content. Wow...it looks like the magic word was Ampex! It is good to know I have something in common with at least 2 people here besides ham radio. I had some old HS-100 discs that I hot-glued audio CD's in the middle of to make them look like giant LP's. They made good mirrors. Also had one with a clock movement in the middle. Yes...I miss Ampex. On topic My AtoB, KAF2 and internal battery arrived today. I took Don W3FPR's suggestion that I swipe one of the 470pf caps from the 10/12 bandpass filter update and put it in the VCO circuitVOILA I'm on 160M with the K2 again (after first pulling out all the junk caps parallelled and sucking the solder out of the holes etc.). Now I just need to order a replacement 470pf for the bandpass filter. It's great to have a radio that I can fix on top of my washing machine (the only clear bench space I could find today). And its great to meet such helpful friendly people... I wish the ham bands themselves were this pleasant to participate on. Tom K2TA - Original Message - From: Larry Phipps [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, October 29, 2004 10:24 AM Subject: Re: [Elecraft] Newbie K2 questions It's nice to see some fellow ex-broadcast types on here. I worked in TV broadcast and later owned a post-production house. I think I've used or owned just about every AMPEX product ever made dating back to the model 350 audio tape deck, every VTR from the VR-1000 forward except the AVR-3 and VPR-80 (including the high speed tape duplicator of which I think only three were made). HS-100 200 slomo disc recorders, AVA paint system, several ADOs, ACE editors, Century 330 switchers, etc. Never had a DCT deck or the storage deck based on it though... we went with DigiBeta, D1 and D5 at that time. It was a sad day indeed when AMPEX closed up shop. Without question, Redwood City was the center of the video universe. A lot of those guys went on to make more great products like Abekas (we also had a ton of Abekas equipment). 73, Larry N8LP VR2BrettGraham wrote: K2TA wrote: Oh... The stock knob is gone. The previous owner had a nice ridged knob with a spinner grip installed on the rig. But I had an old knob from an Ampex VPR-3 1 broadcast videotape machine whose diameter just meets with the bottom edge of the K2 and only slightly covers the lables for the ATT and A VFO. Darn, I know where there's a VPR-3 here that's not doing anything - never would have imagined that the shuttle knob would fit a K2. From Tom's description, this is a fitting way to recycle bits from the best Type C VTR ever produced. Alex Poniatoff might even have approved. ;^) 73, VR2BrettGraham ex-AMPEX HK ___ 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/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Hum coupling? - A real fix!
At 10/29/2004 10:16 AM, Tom Hammond wrote: Supplies with big trnasformers, or even small ones carrying high current, can/will often cause hum on the K2. Best to space them a distance away. Switchers probably won't induce hum, but might cause in-band birdies by virtue of their switching frequency and (for some) lack of adequate filtering. 73, Tom HammondN0SS OK here's the new program! Supplies with real transformers can cause hum in the K2 Supplies with switching can cause birdies in the K2 What's the option? No power supply? No power supply, No hum, No birdies, No problem? Well, the sensitivity goes to Hell in a handbasket. The solution? The new K2-PSQ and K2-PSH K2-PSQ is a 4 amp power supply to power your K2 with a bit of current to spare. K2-PSH is a 25 amp power supply to power your K2/100 with a bit of current to spare. Both power supplies fit in an enclosure that fits right under your K2 or K2/100. How do they do it? SMT - the new technology. Brought to you by the Godzilla PoWer company, Surface Mount Transformers that can deliver up to 1 watts of live of power. In conjunction with Elecraft LLC, and QRP-L, Godzilla has miniaturized their line of very high power supplies to fit into the Elecraft KAT-100 1.5 enclosure with 99.89776% regulation (mandated by qrp-l, and several 6's). Just send the name of your financial institution and a letter from them with a line of unlimited credit to . well, you get the picture! Ok . wife brought the little white pills to calm me down and said she will let me go back to the shack for some 40M cw in a short while. They tell me I haven't been the same since Godzilla came out with the 3 db per hundred feet gain special coax. Guess I never should have ordered that 1000 feet spool! 73Hank dam, it's great to be retired and have time to sit back over a coffee and think . and think .. and think! */ INCLUDE DISCLAIMER Please hold off with your orders until you see the major announcement on these new products in approximately 150 days or 21 weeks. ___ 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 does it again
FD 2004 results are in on the web. WB7FJG and I operated W7MRG in 2B2B (2-man, 2-tx, QRP Battery) to AN UNPRECEDENTED WORLD VICTORY! (i've been watching too much campaign coverage). Naturally, my radio was a K2 which kicked A$$ and took names (or at least callsigns). Next year we're gonna improve our scores by leaving the beer at home. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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] Hum coupling? - A real fix!
Actually - after toasting my internal KBT2 by overcharging with an uncontrolled solar panel (hint hint... words for the wise) - I bought a $50 MityMite 12Ah battery/charger from Autozone. I plug it in to charge when I'm not on the air, and then I unplug the charging cord, and turn on the radio and have RFI free operation (well - at least free of Power Supply related RFI). I think Elecraft might do well do design a matching UPS/PS for the K2 K2/100. It could utilize a smaller - well designed power supply that acts primarily as a charger for an internal 25+ Ah battery that is used to power the K2. It could go into an EC2 enclosure - and possibly have a forward facing speaker and digital readout of battery voltage readout and/or charger battery status LEDs (rapid charge, float charge, low-voltage disconnect). Another option might be a connection in the back for a solar panel or other 'high voltage DC' input (high voltage being 15-24V). - Daniel AA0NI --- Hank Kohl K8DD [EMAIL PROTECTED] wrote: OK here's the new program! Supplies with real transformers can cause hum in the K2 Supplies with switching can cause birdies in the K2 What's the option? No power supply? No power supply, No hum, No birdies, No problem? Well, the sensitivity goes to Hell in a handbasket. The solution? The new K2-PSQ and K2-PSH ___ 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] To sell or upgrade?
Hi all, I am the proud owner of K2 #402 (1.04d - 1.02), with KAT2, KSB2, and KNB2. I have recently done some tests comparing this rig to some of my other rigs. The K2 of course won. So now that the K2 design has matured, I would like to get more options like the 100 W amp, the bigger auto tuner, and the DSP unit. So I have been learning about eBay, and PayPal etc, and have started to sell some of my other equipment to help pay for this. Now I am thinking whether I should upgrade my K2 #402, OR possibly sell it and build another one. I do like building, but frankly wouldn't feel good taking a significant loss on it. So this brings up two questions. 1) If I keep K2 #402, which I think is in perfect condition, is there any significant PERFORMANCE disadvantage to upgrading this earlier version and then adding the KPA100, KDSP2, and KAT100? I guess if I went this route I could sell the KAT2 and reduce the overall cost of this endeavor. The only disadvantage I see is cosmetic since I would be soldering the parts on the board sort of in a dead bug fashion as most of the upgrades to the Rev. A board are done. 2) Is it really worth it for me to sell K2 #402? I figured I put about $900 dollars into it. I'm thinking that I couldn't get anywhere near that if I tried to sell it. After reading the upgrade material I am leaning towards keeping #402, but still would like to hear from the list. Thanks for the input. Steve Pituch, W2MY/5 Corpus Christi --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.782 / Virus Database: 528 - Release Date: 10/22/2004 ___ 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 does it again
And, AA5B was fifth place overall in all classes combined (over 2300 entrants). We operated 6A battery in NM. Set new all time national record for 6A battery, and, all time highest score in NM, any class. The work horse radios were K2's #2012 #2223. We also had a K1. All HF antennas were simple dipoles. Oh, better mention that there were some very good dedicated operators involved also. John k7up, K2's #2012/2223 ___ 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
[fpqrp] Tossing a wire out of the window,
I was ready to set up my Amateur Radio Station. I was in Oakland, CA, on business, and my second-floor room had been chosen for its proximity to a one-story shop across an alley next-door, where I had tossed my weighted wire last Fall, and had been rewarded with some nice QSOs up and down the Left Coast. The wire was 24 feet of #26 'silky' wire, and the rig was my KX1, known as Kixie. Unfortunately, as it turned out, for me and the local avian populace, the proprietor of said shop had since installed some nasty-looking wire thingies on the roof's edge in what looked to be a successful attempt to keep his awnings red, rather than spotted white. No way was I going to toss my wire over that, and risk the loss of the discarded razor handle I use a a weight! So I just lowered away into a willing bush nearby, to keep the wire away from the hotel a bit, and laid a 33 foot RF ground on the floor of my room. I heard FP/VE7SV on twenty meters pretty well, but could not make my two watts heard through the din. Really, I just wasn't patient enough. Then I tuned up the band a little, and heard VP2ETG working a group, split. Got him! Anguilla, 3784 miles. Didn't work the FP/ station until last night, from home, with the loop and five watts. Be a good place for a Flying Pigs Pigspedition... LL __ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail -To unsubscribe, mail to [EMAIL PROTECTED], msg: unsubscribe fpqrp-l -
[Elecraft] My K2/100 wan't regulate down power on 40/80
Hi again fellows! Last mail I said my K2/100 want regulate down power on lsb ,but usb sounds fine. After some investigations I found this not to be true. Here is what actually happens. And Eric or Wayne! I would like your thoughts on this also. First ! My setup is : K2/100 #3829 Butternut HF9V Groundmounted with radials in ground. Alinco power 80cm below K2 at 14,1V. All bands 10-20meters ssb and 10-160cw is working as it should. No hum or ripple at all. Audio OK. Not hifi , but no one report bad so for me all except bad is OK. (I just one of the guys that want to get understood!) (Married??? YES!) 40/80meter ssb? Well! Audio partly OK. 40meter audio OK. 80meter audio on antenna OK ,with dummyload it is broken up. If I set 50 watts on 80 meter and switch to 40 the rig put out 100watts anyway. If I then wistle high pitch loud in mic. power goes to 170-180 watts. It wan't regulate down power. If I set power to max and wistle low tone and pitch and the regulate down the rig will respond and regulate power. It will then remember powersetting until bandchange again , and if I switch to 80 that memory is lost and an setting of 50watts is not remembered. It wan't regulate down until I wislte low tone/pitch while I regulate from max and down again. I tried to split the K2 and KPA100 and the result was the same. I don't think the KPA100 is straying over to the K2. For me it seems like the KPA100 is strying to it's microcontroller. Why? Because when I whistle , sometimes the fan tries to turn during whistling. When I stop whistling , the fan stop. I had done the refastening of hardware on the KPA100. It had get loose after 10 hours of fun. Did not get things better. Is this a grounding problem or something else. If I was advised to check that and this I would do it and report back. Also the KSB to carrier balance is rechecked and adjusted. It is no difference on usb/lsb other than usb puts out a litle lower gain than lsb , but problem is the same. I can live with this now ,but not if I was to run a 1KW PA with the K2 witch is my intensions for later. HELP Have a nice weekend all! Tom LA1PHA ___ 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 MOJO
Hi guys! Many of you have spoken of K2 mojo. I have never seen K1 mojo! Why? About a week ago I was at my weekend qth. I just brought my K1. At 24oct2004 01.05utc I worked k2vv with 5 watts with my K1. I was using a full size groundmounted 40meter quarter wave vertical at 10,14meter high. Now! That's mojo. Tom LA1PHA ___ 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] Hum coupling?
The bottom line on placement of rigs to avoid hum for Elecraft, or any other brand, is to place the transformers and switchers as far from the rigs as possible within reason. Use twisted pair leads from DC supplies external to the rigs, and shield them if possible. Alternatively (and at great cost) one could buy MuMetal to line a power supply cabinet on the side toward the rig, but then you have a massive metal piece blocking venting and cooling of the power supply. As BPL trials have shown us, Power sources are sources of noise. Rigs need low noise to have best sensitivity on receivers to work the DX. DX means distance so keep those supplies at DX. 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] FD participants and scores
ARRL requests you send in logs of both operators and guests, so participants includes all who come to Field Day site. 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
[Elecraft] K2 #4487 up and running on CW but SSB...
My K2 works great both on RX and TX in CW. Also RX on SSB is splendid, but my SSB TX sounds like a built in unfiltered switchmode supply. During alignment I can listen to my voice in the headphones and it sounds ok. But during normal mode in SSB TX has a whining sound. It increases at the upper part of the band and decreases I frequency at the lower portions of the band. I have tried running my K2 from a car battery - but the sounds are still there. I have checked all components for misplacements and values and are correct. Weher do I look? Sincerely LA6VNA Tom Rune Breivold ___ 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 participants and scores
On Fri, 2004-29-10 at 13:52 -0700, Jessie Oberreuter wrote: Okay, so whats with some of these stations that have a huge number of Participants? In the list of the 20 or so Northwest Division 3A stations, more than half of them had in excess of 10 participants, and the lowest scoring group on the list had 42 people! Am I missing something? Are folks including everyone who comes to visit? Do these clubs really dedicate the bulk of their membership to running a 3A station? If it's anything like my club, a bunch of people come out to help set up and tear down, and hang out in between, but when offered a seat at the operating position, say no thanks. That's why I usually end up operating 16 hours at a 1A station run by a 300 member club - there's no one else to operate. Fine with me - I like operating! But I guess everyone who comes out gets counted. ___ 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] To sell or upgrade?
Hi all, I did some research. The last two K2s on eBay sold for a 30% discount based on their estimated original cost. That's quite a loss. It seems that the evolution of the K2 design has been such as to avoid obsolescence of earlier serial numbers, making it, so far, a timeless and incredible design. So it looks like I will be keeping #402, and will start the basic upgrades soon. Thanks all for the input. Steve Pituch, W2MY/5 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.782 / Virus Database: 528 - Release Date: 10/22/2004 ___ 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
