Re: [Elecraft] k2 audio power
My Sony MDR 7506's have a DC resistance of 72 ohms per side. Since the phones are in parallel, the rig will see about 36 ohms. I am not sure how that relates to impedance but it seems in the ballpark. Heating and reactance would increase it some but I don't know by how much. They are comfortable and very sensitive. I bought them because of good reviews on eham. 73 - Rick - K7MW Sony MDR-7506 and MDR-V6 -- these are standard, large, closed headphones with nice soft cushions, work for for long operating sessions. These sell in the $100 range. Sony, being Sony, doesn't put impedance and sensitivity specs on the data sheets that I have, but I suspect they are in the same range as the ER4S's. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Re: Elecraft Net -- thanks, Kevin!
I think its time for Kevin to give himself a promotion. He has been Net Control Operator, 5th class, long enough. 73, Rick - K7MW- Original Message - Elecraft page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Ultimatic Keying.
I would like to see a squeeze option that would give a steady tone when the paddle contacts are both closed. This would restore keying control to the operator. I normally use a bug or straight key but use paddles with the KX1 when portable. The bug is more than 5 times as heavy as the rig and does not travel well.73 - Rick - K7MW - Original Message - From: Geoffrey Mackenzie-Kennedy Subject: Re: [Elecraft] Ultimatic Keying. .. Confession time, have yet to master fully this new fangled Iambic Keying thing, so use the twin paddles like a single paddle bug. But the CW is 'mechanical' not like bug produced CW, and a 'friendly' dit daaah dit cannot be sent! 73, Geoff GM4ESD ___ 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] Tuning 88' with KX1 autotuner?
Jim - That is my antenna, currently installed as an inverted vee with center at 40 feet. I have about 80 feet of window line. I just tried it with my KX1 using an Elecraft 4:1 balun. [Usually, I use an outboard Z match tuner (NORCAL)]. On 40 meters, I got an SWR reading of 2.3 while 30 and 20 meters were 1.1 and 1.0 respectively. I could probably get the SWR on 40 meters down by changing the feed line length. Of course, this would change the other bands. The balanced antennas are harder to match than the end fed wires recommended in the KX1 ATU manual. I get close to 1.0 on all 3 bands with an end fed 80 foot wire sloping up to 30 feet and a 33 foot wire laid on the ground. I highly recommend the KX1 for portable use. 73 - Rick - K7MW - Original Message - From: Jim Miller [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Sunday, February 20, 2005 3:21 PM Subject: [Elecraft] Tuning 88' with KX1 autotuner? Just wondering if anyone has tried their KX1 with the autotuner on an 88' doublet with a windowline feed? I'm getting ready to erect an 88 footer in my backyard. My height will be around 35ft and I'll have 80 feet or so of ladderline. How did you do the coupling of the ladderline to the kx1, any feedline length issues and how did it load up? tnx jtm (drooling over a kx1) ___ 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] S-9 calibration with XG1
Its hard to try to match up the number of segments lighted with any of the S unit marks. Thats the price we pay for not having a real analog S meter. I am thinking of calibrating the meter so S9 is nine segments lighted (50 uv) . One segment for each S unit. I would have to count segments instead of using the scale. I am not sure that the high end of the scale is important, anyhow. My Sierra dosen't waste segments on 40db over S9. I think that with a 40db over signal, the attenuator would be on or the RF gain reduced, either of which would change the meter reading. The bar graph has 10 segments so I could read to S10 (5db over S9 ?). I am not sure if the meter would be any less linear. 73 - Rick - K7MW From: Stan Rife [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 21, 2005 5:10 PM Subject: [Elecraft] S-9 calibration with XG1 I just put the XG1 together and had a question about the setup on the K2 for setting the S-meter to S-9. In the K2 manual, the only mention of the XG1 is on page 48. This is the step right after the Cal SLo and Cal SHi functions. It does not indicate whether to have the preamp on or not. The instructions that come with the XG1 say to have the preamp on. Which is correct? I am assuming that it would be with the preamp on, since I get around S-5 with the preamp off, and close to S-9 with the preamp on. This is after doing the SLo and SHi calibrations. Also, what is considered S9 on the K2 meter? Just before the 9, or right under the 9 ? I am not trying to be too picky, just wondering what point everyone else is using, if there is a standard. Right under the 9 goes slightly past it and kind of looks like a better indication for a 5 over condition. Right now, the XG1 set for 50 microvolts lights the bar under the 9 on my S-meter. Stan Rife Houston, TX [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] FS: KX1
I am selling my KX1, SN 539, and building another K1. Meets all specs and in like new condition. Incl. 30 M, Int ATU and plug-in paddles. Current cost $466. I am asking $350 USD incl. shipping to CONUS. Rick Dettinger - K7MW ___ 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] FS: KX1
The KX1 has been sold. Thanks - Rick - K7MW - Original Message - From: Rick Dettinger [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, August 02, 2005 1:18 PM Subject: [Elecraft] FS: KX1 I am selling my KX1, SN 539, and building another K1. Meets all specs and in like new condition. Incl. 30 M, Int ATU and plug-in paddles. Current cost $466. I am asking $350 USD incl. shipping to CONUS. Rick Dettinger - K7MW ___ 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] Antenna question
Hi Tom - I don't think you mentioned what bands you intend to use the antenna for. If just 40M, then you may do as well with coax and not need the tuner. If you use it for an all band doublet, the tuner may have difficulty on some bands depending on the impedence and the lenght of the feedline. Without the balun, you may have radiation from the feedline, which may not be a problem or it may cause problems in the shack with RF getting into equipment or noise on receive if the source is near the rig. I use a doublet but I increased the lenght to 88 ft and the k2 handles it well on most bands. I plan to increase the lenght to 100 ft to get better efficiency on 80 meters. I use a 1 to 1 balun. A 4 to 1 balun may work better on some frequencies but would likely give less efficiency on 80 meters due to low radiation resistance. Finally, changing the lenght of the feed line can improve the match on some bands with a possible worse match on others. Multiband antennas are always a compromise and experimenting may be required.Rick - K7MW Original Message - From: Tom McCulloch [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, August 20, 2005 6:57 PM Subject: [Elecraft] Antenna question Hi all, I'm considering putting up a 40 meter dipole fed with a 450 ladder line. I have a K2 which I run at about 5 to watts (I do not have the 100 watt amp). The K2 also has the internal ATU. I have always used 50 ohm coax up until now. Is there anything I should know about using the K2 with 450 ohm feedline? (Will I need a balun, or can I just feed the ladderline directly to the K2's ATU and that will take care of the match. Thanks for your help. Tom, WB2QDG K2 1103 ___ 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] KAT3 question
I have just installed the KAT3 and it seems to be working, however, i can only get a SWR of 4.0 on the K3 on my 40M end fed antenna. I know the SWR with this antenna is very high, but I can get the SWR down to 2.5 with my K2 ATU. The K2 is using ALT tune to get there taking a long time. I can understand that this could be a matter of chance, since the tuners use discrete components, rather than adjustable ones. I don't find much info on the KAT3 in the Installation Instructions or the K3 Owner's Manual. Sheet 3 of the KAT3 Installation Manual, Introduction, says Complete details for using the KAT3 are included in the KXV3 Owner's manual. I can't find a KXV3 Owner's Manual on the Elecraft site, only the Installation Instructions and I don't have a KXV3. Do I need a KXV3 to use my KAT3? Does the KAT3 have the equivalent of ALT tune on the K2? The KAT3 seems to give up after a few seconds, while the K2 tries real hard to get a good match. I can prune my end fed antenna but I may be missing something here and would like to know. Thanks and 73 Rick Dettinger K7MW ___ 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] K3: 7.2 pound tuning knob
On Apr 5, 2008, at 10:48 AM, Rick Dettinger wrote: Sporting types might want to put some money down on when the number will be in the 6000 range and pass up the very popular K2 number. 73' Rick K7MW On Apr 5, 2008, at 9:44 AM, Lyle Johnson wrote: ... If we assume they've shipped 650 K3's @ $2,200 (I thought I'd err on the lower-end of the range), they're received $14,300,000 in revenue. I think that would be for 6,500 K3s, not 650!!! 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 ___ 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] 2.7 vs 2.8 filter choice K3
On Apr 4, 2008, at 12:20 PM, Craig D. Smith wrote: In my opinion the difficulty in making the choice is because of the pricing structure adapted by Elecraft for this option. If the filters were sold ala carte, and you needed to buy the 2.7 or 2.8 in addition to the K3 (or sub receiver), I'm guessing that most people, including me, would elect to pay $120 for the 2.8 rather than $100 for the 2.7. === I think that Elecraft wanted to sell a working radio for the base price. That is the way that I ordered my K3 and it has worked very well. I am a CW only operator and I would never have considered ordering any rig without a 500 hz filter, in years gone by. For my use, since I am not a contest operator and run from pileups, I found the 2.7 khz filter just fine with the bandwidth set at CW widths. I have since ordered the 6 khz, 1 khz and 500 hz filters, just because. Also, the general coverage filter board because I didn't have a good general coverage receiver. I have read discussions on other reflectors involving the concept that under heavy QRN conditions, filters characterized as having steep skirts, with the resulting sharp shoulders, cause mixing products with the desired signal, and that the result is unpleasant to listen to when QRM is not a problem. For the operating I do, especially on the lower frequencies, QRN is usually the problem. I seldom have to deal with QRM over S9 and have decided to go with the 5 pole filters where they are available. But I am also fine with the 8 pole, 1 khz filter to experiment with. This seems to be my go to filter on CW these days but I will be comparing both. With a strong interfering signal close by, I can use the 1 khz filter, with its steeper skirts, along with shift, to eliminate the QRM. The shift seems to change the center of the passband in 50 hz steps. I usually have to fine tune with VFO A after getting close with the shift control. Not a problem, as I am always working split, since I prefer that to RIT. 73 Rick Dettinger K7MW ___ 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] Introducing the MadelynGram :-)
My K3 kit came just as I was leaving the house to go to my daughters wedding rehearsal. I opened the white box and grabbed the manuals. I read while my xyl drove, an unusual circumstance. This was on a Thursday. I was on the air by Saturday morning, the wedding day. Kit went together very well and rig works as advertised. 73 Rick Dettinger K7MW On Apr 14, 2008, at 5:07 AM, Darwin, Keith wrote: We're all very familiar with the lovely Lisagram or the heart-warming Katiegram. I've received a Madelyngram. It simply states my K3 has shipped. Whoo Hooo! I hope it takes it's time and doesn't arrive until after Tuesday. I'm teaching a photography class on Wednesdays and have been using Monday and Tuesday nights to prepare for the class. I DON'T need a nice new K3 arriving at that time and tempting me to go play radio when I'm supposed to be playing photographer. - Keith N1AS - - K2 5411.ssb.100 - - K3 enroute to me - ___ 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] grounding K2
If I remember correctly, the base K2 came without the ground screw. Its been a long time. I think the ground screw came with the ATU. The K1 doesn't have a ground screw, even with the ATU. I am confused about the use of an RF ground with a balanced antenna. One of the advantages of a balanced antenna, verses an antenna that works with a ground such as a vertical, is efficiency. If I use an RF ground with a balanced antenna, am I losing efficiency. Especially if the ground is mediocre? I don't want to put down 60 radials for my center fed doublet. When I used my K1 or K2 with a battery and a balanced antenna, I had confidence that most of the power was getting radiated. Now I have a K3-100 with an Astron 35 M power supply and I am wondering if that has changed. The 35 M schematic shows that the 13.8v DC terminal is connected to the 120v AC supply system ground. This is continuous, overhead and underground, to the substation ground mat. This doesn't sound too bad for a 160 M vertical, however, I can't decide what effect this has on my CF doublet. Am I sending RF all over the neighborhood on the power lines? Is this why a BALUN is needed? Is my antenna efficiency and pattern different than when I used battery power? If I use the doublet and a BALUN, what do I use the ground screw for? It would be redundant to attach it to the AC ground as this is done thru the 13.0v supply cable. 73 Rck Dettinger K7MW On Apr 16, 2008, at 11:50 AM, Roger Stein wrote: Yes, good RF/safety practice, to the ground post on the back of the K2 provided for that purpose. Roger WA7BOC k2 755 k3 75 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott McDowell Sent: Wednesday, April 16, 2008 11:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] grounding K2 Hello Has anyone ever felt the need to ground their K2, and if so, where did you connect the ground wire to the K2? Thanks Scott N5SM ___ 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 -- I am using the free version of SPAMfighter for private users. It has removed 36 spam emails to date. Paying users do not have this message in their emails. Get the free SPAMfighter here: http://www.spamfighter.com/len ___ 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] Dangerous Low Volage (WAS: Power pole for K3?)
On Apr 19, 2008, at 10:06 AM, Robert Tellefsen wrote: Hi Ron One other precaution I've always used is to ensure that all hot terminals are always female with no exposed metal to accidentally allow a short. I know this is stating the obvious but it may not be to those who are new to this. 73, Bob N6WG My TenTec 1340 QRP kit came stock with an RCA jack for the 12 volt supply. I made the mistake of attaching the power cable to my Astron 35 supply, first. I didn't lose any body parts but did cause the supply to relay out when I made accidental contact with the aluminum chassis. Not a good idea on TenTecs part, even though I didn't use good sense in not attaching the cable to the rig first. For QRP, I should have used a small inline fuse in the positive cable lead. I do now. I also have changed the jack to K2 style. 73 Rick Dettinger K7MW ___ 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] Professional Morse (WAS: CW Mistakes)
I am glad to be born after CW was invented. Barely after. I would hate to have to listen to spark watch after watch. 73 Rick Dettinger K7MW On Apr 26, 2008, at 7:43 AM, Ron D'Eau Claire wrote: And there's a sample of what the 600 meter marine band sounded like on a typical receiver of the time. Talk about QRM, but it wasn't a serious problem for those ops most of the time. It's a audio file created by W5JN of the OOTC (the really OLD, old timer's club). http://www.ootc.us/W5JN%20QCWA%20Ch41.mp3 He provides some narration and a few hints about what you're hearing during the ten minute program. 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] Palm Mini-Paddles?
I screwed mine to an aluminum bar with a rubber foot on the front. The rear of the bar had a hole that mated up with a hole in the K1 mounting bracket. I used the Elecraft supplied thumb screw to attach the bar to the bracket. It worked well, unless I wanted to carry the K1 without the bracket. I now use a GHD travel paddle attached to an aluminum plate. It is not as compact but I can use it with other radios or without the bracket I just hold the plate in my left palm. This can be done with other paddles and I find that it works well for me. An advantage of the Palm Mini paddles is that you can buy extra snap in mounting bases and attach then to different gear. Some have even attached them to tiles to use in the shack. The paddles simply snap into the bases and are ready for use. My only complaint with the Palm paddles is the slightly soft contacts. Not a big one for portable use. 73 Rick DettingerK7MW On Apr 27, 2008, at 7:44 PM, Sandy wrote: I forgot to mention. I stick mine down in place with the yellow or blue sticky clay you get at office supply places. Works great and doesn't damage the housing of the key. I didn't opt for the magnetic inserts as the K1 doesn't have anything they will stick to! Didn't want to drill the side of the K1 to mount the base either. 73, Sandy W5TVW ___ ___ ___ ___ 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] Palm Mini-Paddles?
Good for you George. I just got my Begali Signature paddles last week. They are very nice but they are not carved out of a solid block of stainless steel like your Sculpture paddles. And they weigh about as much as a 5 ah gel cel battery. So they do not go traveling with me. But I like the way you think. 73 Rick Dettinger K7MW On Apr 27, 2008, at 9:14 PM, George Victor wrote: Folks, Why waste your time, We are all a bunch of old farts, you are not living forever. Just use a good paddle without worrying about cosmetics or damage (or money). I have a Begali Sculpture that will satisfy any of you picky code aficionados, I take it on camping trips and to picnic grounds. I throw it in my trunk with out worry. The paddle is pretty much indestructible. It's $600.00 bucks but it it the best pair of dancing shoes you will ever own. Don't deprive yourself. Just get the best and enjoy! George ___ 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] DL1 Short Term Ratings
I used mine to make the 50 watt adjustments, since my watt meter only goes to ten watts, and had no problems. I limited the key down time to a few seconds, just enough to read the voltage. I made adjustments with the key up and then rechecked the voltage on the DL1. The resistors got quite warm but not too hot. I used clip leads on the test points so I only needed enough time to read the meter. 73 Rick Dettinger K7MW On May 18, 2008, at 8:25 AM, WA6OCP wrote: Has anyone determined what the DL1 is capable of for a short time (say 10 sec) in excess of 20W? Besides the power dissipation, one would also have to consider the PRV of the diode. It looks like 50W would stay within the diode's PRV rating. Tnx, Neal WA6OCP -- View this message in context: http://www.nabble.com/DL1-Short-Term-Ratings-tp17304146p17304146.html Sent from the Elecraft mailing list archive at Nabble.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] K2 FS
My K3 is keeping me busy so my K2 is idle. So its time to sell. K2 SN 1653 with KAT2 KAF2 KNB2 K160 RX All manuals This K2 is set up for CW only at present. I did most Rev. B upgrades that pertains to QRP CW operating. Everything works as per Elecraft specs. except for very low output on 160 M. where I only get about one half watt output power. Receive seems to work well on 160 M. I have worked several states QRPp on this band but have not done any troubleshooting. The K2 appears to be in like new condition with no dings or scratches and has only been used at home. Non smoking, both the rig and the operator. I will sell for $500. including UPS ground packing and shipping to CONUS. Thanks and 73 Rick Dettinger K7MW [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] K3 - 30m problem solved
If this had been an offshore rig, you would have had to send it to a factory authorized repair facility for warranty work. Since there was no fault, you would have had to pay a service charge and shipping both ways. Another advantage of buying an Elecraft rig. 73 Rick Dettinger K7MW === My K3 quit transmitting on 30m a week ago. All other bands were OK. After using up a lot of Gary's time, Wayne called me and his first question was, Which antenna is selected? I don't know how it happened, but 30m had gotten set to ANT2. One tap on ANT and I'm back alive on 10.1 MHz. Just like my K2, the K3 antenna selection is saved on a per band/per memory basis, something I should have known since I've had my K2/KAT100 for several years now. The moral for me is, Before leaping to email [EMAIL PROTECTED], study **ALL** the icons and legends on the LCD. Quite a few are fairly small. Chagrined, I remain Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 ___ 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 FS
K2 SN 1653 with KAT2 KAF2 KNB2 K160 RX All manuals This K2 is set up for CW only at present. I did most Rev. B upgrades that pertains to QRP CW operating. Everything works as per Elecraft specs. except for very low output on 160 M. where I only get about one half watt output power. Receive seems to work well on 160 M. I have worked several states QRPp on this band but have not done any troubleshooting. The K2 appears to be in like new condition with no dings or scratches and has only been used at home, in a nonsmoking environment. I will sell for $450. including UPS ground packing and shipping to CONUS. Thanks and 73 Rick Dettinger K7MW [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] K2 FS
K2 #1653 has been sold. Thanks Rick Dettinger K7MW ___ 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] K3 noise blanker sure does the job.
Brett - I used to have the same problem with the street lights in my neighborhood. After about three years of service, high pressure sodium lamps start to cycle on and off. Every time they start up, they generate noise. I walk at night and in the winter I could see the lamps cycle. I would make a note of the address, and then email the information to the power company. It is important to be specific with information as the line service crew that gets the trouble slip will come out in the daylight and won't be able to see the problem. Our streetlights are serviced by the power company through a contract with the City. In your area, you may have to contact the City. Street lights should be maintained on a 3 year cycle but maintenance gets deferred due to budget considerations. Don't expect prompt response. This is low priority work. 73 Rick Dettinger K7MW On Jun 23, 2008, at 9:11 AM, Brett Howard wrote: I've got a HUGE problem in my area too. It only comes on at night (not all nights though) and its periodic. Like a lil over a minute on and then 40 something seconds off and it goes on and off like that all night. It generally comes on shortly after the street lamps do. A talk with the power company results in a guy calling back saying he was in the area and couldn't hear anything. Well no doubt you weren't there when the noise is. And he says that if its the street lamps they have no jurisdiction I have to speak with the city. Unfortunately I have no real way to tell what light it is. ___ 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] Optivisor?
On Jun 27, 2008, at 8:03 AM, Ron D'Eau Claire wrote: A word of warning to all the young gentlemen who want to look cool out there, I've been wearing Optivisors for 30 years now, ever since I handled my first SMDs. As a single fellow on the prowl I always wanted to look good. One day I jumped up from the bench in the lab to head into the front office at the company where I worked. As I walked through the facility, several attractive young women smiled broadly at me. I winked back and even chatted up one or two, wondering why I was suddenly so noticeable. My errand done, I returned to the lab to discover that I had flipped the Optivisor up over my head without thinking about it. They work great that way, getting the lenses out of the way without removing the nice padded head band. So what the YLs were smiling about was me walking through the facility with this ridiculous looking contraption sticking up on my head. Sigh! Ron AC7AC Another word of warning. Optivisors cut off peripheral vision. But I knew just where my soldering iron was. After a 2 hour wait in the emergency room, the doctor gave me a tube of silver sulfadiazine and told me to be careful. 700 degrees burns very fast. Usually, I can adjust the optivisor up slightly, so that I can also see underneath with glasses only. 73 Rick Dettinger K7MW ___ 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] Band button
On Jul 5, 2008, at 7:11 PM, Lyle Johnson wrote: For those who prefer frequency in this mode, the reference won't be in Hertz, but in cycles per fortnight. This is a great Forum... Yes, it is, to go with a great rig. But I would prefer the frequency to be in natural units, i.e. radians per second. 73 Rick Dettinger K7MW ___ 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] There's a new K1 on the block!
That would be for diversity reception! :-) Rick K7MW On Sep 19, 2009, at 7:55 AM, Mike Morrow wrote: Steve wrote: My version of this 'classic' rig is 4-band (40, 30, 30 and 15m)... A magic combination on 30m, my favourite band. 30m must really *really* be your favo[u]rite, if you have devoted two of the four bands on the filter board to it!!!:-) Mike / KK5F K1 S/N 175 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] DSP red light coming on at max load
I really appreciate that Elecraft is such an open company! (-: 73 MW On Oct 14, 2009, at 6:16 PM, Wayne Burdick wrote: It's official: we're running out of DSP cycles not just during NR on/ off but also under worst-case load. I get a continuous DSP red LED and distorted audio (with a buzz) under the following conditions: CW CWT on NR on, set to F1-x DSP NB on, any setting FIR IF filter (WIDTH 500 Hz) Turning off any of these kills the red LED. I also get a red LED when turning NR on/off even if the DSP is not turned on. So I need a workaround until you get back. One thing I could do is defeat the CW decoder (and CWT) if WIDTH is set 500 Hz. Other ideas? tnx W __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Beta Firmware
My conclusion is that the stability of the K3 firmware is a relative term. In anticipation of further improvements, it will be a long time before the firmware is finished and thus stable by that definition. 73, Don W3FPR This makes wonder if new K3's are shipped with the latest Bata or the last production firmware? 73 Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Beta Firmware
took 14 days for my K3 to get here. Six days of that time it sat in Canadian Customs then Canada Post had it for another six days. This makes the US Postal Service look pretty good! -Robby VY2SS Do they charge for storage?(-: 73 Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Pronunciation ??
On Nov 26, 2009, at 12:26 PM, David Ferrington, M0XDF wrote: Who's Queen? :-) 73 de M0XDF, K3 #174 Not ours! But I think there is a little history there :-) Rick Dettinger K7MW, in the non-former colony of Washington State, USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1-4 Bands
And if you are going to change boards often, I would suggest not installing the KAT1. It would be better to use an external tuner as the band filter board is located under the ATU and it more than doubles the time it takes to change boards. 73, Rick Dettinger K7MW It would be better to procure another 2 band board and configure it for 80 meters plus another band of your choice. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] kit building or buy ready for use
The cost of the mat and grounded wrist strap might not be a factor. They will be needed for any additions to the K3 at a later date. Building the K3 is like building the K2 after all the boards are completed. Just the final assembly part. By the time I built my K3, it was a welcome relief to construct it that way, as I have stuffed all the boards I want for some time, at least the ones with several hundred parts. 73, Rick Dettinger K7MW Although you save $200 by building it yourself, you really don't learn much in the process, and you have to spend about $25 for an ESD mat. If you have to ship it back to the factory, it will cost you $50 in the USA, and much more from overseas. There is no substitute for the final system tests that the factory-assembled units get. Subassemblies are not tested 100%. Dave Hachadorian, K6LL Yuma, AZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 on 500 kHz
I ordered a Palomar VLF converter a year ago from HRO and they had to refund my money. They said that the VLF converter was no longer being made. The Palomar Engineers web site seems to reflect this. They only show balun stuff, now. 73, Rick Dettinger K7MW On Jan 4, 2010, at 7:13 PM, Fred Jensen wrote: Wayne Burdick wrote: What I meant was that you *could* make a transverter for these bands and interface it to the K3 via KXV3 module. We don't have plans to offer one ourselves. I've had a Palomar VLF Converter for years, works really great, and better with my K3. Converts [allegedly] DC to 500 KHz to 3.5 to 4.0 MHz. LORAN-C noise here on the US Pacific Coast is a bit of a problem, we're fairly close to Middletown CA which has a USCG LORAN station, but the loop will null most of it out. Seems to work good down to about 12 KHz, then things get mushy. I think I've even heard the power line carrier current telemetry ... we have a 145KV line close to us and I know it carries it, we have hydroelectric plants above and below us and I can see the chokes in the substations. That said, I haven't had the Palomar on for about a year, maybe I'll hook it up again and see what's there. There was some word [maybe urban legends] that the CG was going to shut down LORAN-C in the face of GPS. I've heard the West Coast 500KHZ ham beacon several times, can't remember the call now. I really can't see why Elecraft would want to delve into such a low volume market when there are a number of cheap alternatives already out there. I'd rather they work on the solid-state amps :-) As a High School senior at 16, I got to work ships at sea on 500Kcs from a coastal marine station as a relief operator. The Holy Frequency is eerily silent these days compared to then, when it was a sort of world-wide party-line. But, that was then and this is now. LoFer is sort of fun for awhile, but I can't transmit there and the fun tends to fade after I've identified all the NDB's I can hear. 73 and a Good New Year to all, Fred K6DGW Auburn CA USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 how often do you use it?
I am glad that my K3 doesn't weight in excess of 50 lbs. I have to carry it up a ships ladder into my shack, which is in a loft. One hand for the ladder and one for the K3. I do this several times a year to update the firmware. 73, Rick Dettinger K7MW On Jan 11, 2010, at 10:21 AM, Dick Williams wrote: I beg to differ with who stated that most hams want large radios and find the ergonomics and packaging of the K3 to be less than desirable. First, not every ham wants a boat anchor box that takes up half the operating position and weights in excess of 50 lbs. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Units
On Dec 8, 2008, at 11:09 AM, David Cutter wrote: A pity our cousins from across the water are not all on board the SI express. David Yes, it is. And we still refer to our archaic system as the English system. We actually had a push to go metric in the mid 1800's but only got as far as changing the inch by a small enough amount to make 2.54 cm equal exactly 1 inch. It used to be based on the length of a small worm (: Even countries using the metric system don't get it right. Speed is measured in kilometers per hour. The hour is not a metric unit. It should be meters per second for traffic signs and weather reports. I worked for the local power coumpany and they are half right. They use the watt for power but the watt hour for energy, which again messes up the units for metrics. 3600 joules per watthour just doesn't get it. And every other form of energy has its own unit of measurement. Yuck. But I do what I can. I named my sailboat STORMJOULE. The dingy was ERG. 73 Rick Dettinger K7MW as in MegaWatt (: ___ 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] K1 smoother tuning
I did the same thing with my K1. I had to ream the 6mm hole out to 0.25 in. Somewhat tricky. I used a drillpress with a Dremel tool bit. I like the result. I think the K1 knob is weighted also, but I like the larger diameter. 73 Rick Dettinger K7MW On Jan 21, 2009, at 4:17 PM, Neal wrote: Well, maybe smoother tuning is not the best description. I built my K1 with the 80kHz tuning range option. With time, I found it was a little touchy. Not wishing to go to a narrower tuning range, I sought another answer. The solution was a weighted, K2 knob and two felt washers. Given the limitations of the K1, it's about as good as it gets. BTW, it is not at all bad cosmetically. 73, Neal WA6OCP K1 2639, K3 305 -- View this message in context: http://n2.nabble.com/K1-smoother-tuning-tp2195423p2195423.html Sent from the Elecraft mailing list archive at Nabble.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] Beware! (Learn by doing?) :-)))
On Jan 27, 2009, at 12:57 PM, Darwin, Keith wrote: For this very reason, I always run with AGC on. Even when I want the rig to act like it's off, I leave it on, set to Fast and then just turn the RF gain down to put my signal of interest down near the point where AGC is doing very little. AGC is still on to protect me in case some big signal QRM or QRN shows up. - Keith N1AS - - K3 711 - I also leave the AGC on but I use minimum slope and maximum threshold. If the AGC is off, the NR doesn't work (but, unlike many rigs, the S Meter does). Otherwise, I would leave the AGC off. Butt it is good to have some sort of limiter to protect my hearing. 73 Rick Dettinger K7MW ___ 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] K3 PA3000.. you can dream, can't you?
With that kind of drive requirement, you could skip the 100 watt amp on the K2 or K3 and go directly to about 700 watts out using the QRP versions for about the same cost. 73 Rick K7MW LaConner, WA On Feb 11, 2009, at 1:38 PM, Greg - AB7R wrote: If interested there's a guy named Yuri near Seattle who has a board with 12 MRF- 150s on it that he tested I think with 25W drive for 1.1KW output. I don't recall what the power supply was. Think he wanted something like $350 for it. Add may still be on QRZ.com. - 73, Greg - AB7R Whidbey Island WA NA-065 On Wed Feb 11 13:09 , Jeff Wandling W7BRS sent: Fun stuff - I'm not quite looking for the KPA1000, but this is where I'd ultimately like to go design and homebrew-wise if I could try, someday.. maybe. (I saw QEX had an article Oct/2006 for a tokyo-style amp - these hams based theirs on that design) http://www.mods-ham.com/03_Home-brew/Homebrew-Mods/ARF1500-PA/ARF1500PA.pdf and a follow up: http://www.mods-ham.com/03_Home-brew/Homebrew-Mods/ARF1500-PA/ARF_PA_DL6JI.pdf hosted at: http://www.mods-ham.com/03_Home-brew/Homebrew_Frame.html Auf Deutsch. Select all the text, paste it into various translators online and get a jist of what's going on. -jeff __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: question re: antenna/rig swtich
Don, Does it matter if the rigs not in use are turned off? I assumed that they would have more immunity to overload if the unused rig was not turned on. The Alpha Delta instructions says the switches are meant to be used for switching multi antennas and one rig or multi receivers. They do not mention multi transceivers. I use two transceivers with one antenna but I removed the protection plug (Arcplug) as I wasn't sure if that was the reason they didn't recommend the switch for multi transceivers. But I always leave the unused rig turned off. No problem so far but I only run 100 watts maximum. 73 Rick Dettinger K7MW On Mar 5, 2009, at 5:52 AM, Don Wilhelm wrote: Greg, Theory says you should not have any problem. With 60 dB isolation and 1000 watts, there may be as much as 1 mW at the input of each receiver - that is 223.6 mV, which is a large signal, but still within the power handling capability of most receivers. In the practical world, if there are any leakage paths *around* the switch or coupling between the coax lines, then even though the switch itself provides 60 dB isolation, the system isolation may be much lower - just how much depends on your setup. You could set it up and test at lower power - tune the other radios to the transmit frequency and see what the S-meters tell you. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Where Is It In The Manual?
My K3 RTC was gaining less than 2 seconds a month last summer. This winter, it has been loosing about the same. The temp. in the shack is about 15 degrees warmer in the summer. It would be near perfect at about 65 degrees F. I don't think I will try to tweak it :). I originally thought that the RTC would use the TCXO as a time base but that would require the TCXO to be powered up all the time. 73, Rick K7MW Cleve, The RTC in the K3 is specified at 2 seconds per day, I believe. If it's worse than this, you may have a slightly mistuned 32 kHz oscillator crystal. Please contact k3support for help with this. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] 500 kHz Transceive Operation With the K3
On Jun 10, 2009, at 2:20 PM, Mike-WE0H wrote: See if you can make it go to 495.000kc as that is the bottom end of any possible Amateur Band. If it can tune 495.000kc thru 515.000kc, that should cover any future Amateur 600m band. There are currently Experimental stations using that spectrum and Amateur Bands in other countries. The band coverage varies by country but is within that window worldwide. The main tuning stops at 500.000 khz but I was able to get the display down to 490.001 khz with the RIT on receive. Finally, I have found a use for my RIT control. Now, I just need to find a use for my Memory buttons (:. 73, Rick K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 eHam review after 2+ years
I think the original author of this topic is incorrect to call the K3 100% done. I think that this is a correct statement if we take 100% done to mean that the K3 meets all of its advertised specs. At least most if not all of the mods have been enhancements, not steps to meet these specs. 73, Rick K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 eHam review after 2+ years
Yes, of course you are right. I was referring to hardwear changes that would require returning the rig to Aptos or going inside with a hot soldering iron in hand. There is no point in waiting to buy a K3 until the firmwear is fully mature as there is not much involved in dong a periodic upgrade online. It does help if you live near one of the design engineers ):. 73, Rick K7MW in Mount Vernon, Wa. Wasn't Synchronous AM detection in the original advertised specifications? Still waiting patiently... 73, Paul WW2PT On Jul 5, 2009, at 1:12 PM, Rick Dettinger wrote: I think the original author of this topic is incorrect to call the K3 100% done. I think that this is a correct statement if we take 100% done to mean that the K3 meets all of its advertised specs. At least most if not all of the mods have been enhancements, not steps to meet these specs. 73, Rick K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] feature notion
I do about half my operating at QRP and half at ~100 W. A nice single-push toggle would be one that could swap the K3 from, for example, 5 W and 100 W. 73--Nick, WA5BDU I agree. I like to be able to go to low power to use my remote tuner. It takes quite a few turns to crank down to 5 watts and then return to 100 watts. 73 Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] feature notion
Rick, you can set the config item TUN PWR to low power for tuning purposes. This gives a pre-set power level when pressing the TUNE button, settable from 0.1 Watt upwards. 73 Dave, G4AON K3/100 #80 Thanks Dave and Lyle That will work very well. I guess I need to Read The Fine Manual! Although, with a K3, that is a moving target. 73 Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] For All CW Enthusiasts...
After watching the video, I went into the shack and opened up all the adjustments on my bug. And increased the spring tension. I have not been sending near aerobic enough. Now I know what full contact CW looks like. But I don't know if I could ever get used to that buzz note side tone. I will not complain about my K1 note again. At least not for awhile. 73 Rick Dettinger K7MW The sender is Denise Stoops, the first female operator at KPH transmitting the closing message at the recent Night of Nights activity. http://www.youtube.com/watch?v=2a4scmlC7tI Ron AC7AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K1 on the way - Band Module Questions
I am not sure if you are planning to change the two band modules often but if you are, I think it would be better to use an external tuner like the T1 rather than the optional internal tuner. It makes module swapping much easier. The K1 wasn't really designed for frequent module changes and its not just a matter of plugging a new one in, like with the Sierra. If you have the internal tuner installed, it needs to be removed to change band modules. I have often thought that if one could get along without the internal batteries, the speaker and the tuner, that there would be room for more bands on a larger board or multiple boards. But this would require switching changes to the firmware. Not something for mere mortals to play around with. Enjoy your new K1. I sure like mine. 73 Rick DettingerK7MW On Jul 24, 2009, at 8:13 PM, Gary W. Marklund wrote: Thanks, Sandy and Don. Looks like the two-band modules will give me the flexibility I want. Can't wait to get started. USPS tracking shows it has arrived and been processed through the Phoenix sorting facility. I'll have my kit tomorrow! Gary KJ7RT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dilemma: K1 or KX1 - I can't decide
I just can't seem to decide between the KX1 and the K1. And, no, I can't buy both. 73, Doug -- K0DXV The only advantage the KX1 has over the K1 is the small size and the ability to operate on the phone bands, cross mode, of course. This allows checking into the phone nets to pass traffic. The K1 is a better rig in all other respects. I built a K1, sold it to get a KX1 and than sold that to get another K1. For my needs, the K1 is a better rig. 73, Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Off-Topic - Straight-key speed cpontrol
The elbow should rest on the desk and the fingers on the key's knob. I couldn't disagree more! I have always taught as I was taught that the key is at the edge of the desk and no part of your body touches the desk, except perhaps the other hand. The forearm should be horizontal, sit up straight and relax the shoulders. It's very similar to typing. The telegraphers of old had to send for hours and this is the way they did it; I was one once. 73 David G3UNA That is the difference between the American and British systems. As I understand it, the British used this method, as I do, to avoid a glass arm. The Americans invented the bug for the same reason. I also use a bug. During WW2, Australian operators, accustomed to the British method, were frustrated when serving on American military aircraft, because the key was screwed to the rear of the operating table. The following is from Chapter 9, Part II of The Art and Skill of Radio-Telegraphy by William G. Pierpont, N0HFF, (SK): As the beginners progress, they adapt their keying style to whatever is comfortable to them individually. There are many variations in adjustment, depending on the particular key design details and the operator's preferences. The Australians and New Zealanders appear to have followed the British practice, but other European countries have not necessarily done so. Australians have said they found it very hard to send properly with the American keys -- with their flat topped key-knobs, located far back from the edge of the table -- as installed in air- ground-air stations during WW-II. They called these keying arrangements a flaming nuisance! In summary, with all these variations in basic and detail design, it seems obvious that there must be more than one way to design a good key and use it. This entire book is available for free download, and can be linked from here: http://www.qsl.net/n9bor/n0hff.htm 73, Rick DettingerK7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX1 headphones
On Aug 20, 2009, at 5:48 AM, Brian Murrey wrote: I use Klipsch Image X10 headphones with my KX-1they are absolutely the best headphones I have ever used. http://www.klipsch.com/na-en/products/image-overview/ They are not cheap, but you can find them for less than retail at most higher end audio stores. Not only not cheap, they cost more than the KX-1!! 73, Rick DettingerK7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft CW Net Report for August 23rd 24th, 2009
Maybe our rigs won't be working all that long after all. A dim memory tells me diffusion rates in silicon are on the order of tens of years. Maybe if we store our rigs in large Dewars filled with liquid helium they will last a little longer :) Kevin. KD5ONS (Net Control Operator 5th Class) - Plus, it would do wonders for the noise figure :) 73, Rick Dettinger K7MW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 -: internal tuner or external T1 tuner?
Brian- The internal tuner is good and the external tuner is better and can be used with other QRP rigs. Also, if you want to change filter boards frequently, the internal tuner has to be removed to change the filter boards. This doubles the work. 73, Rick DettingerK7MW On Sep 4, 2009, at 11:42 AM, Brian Pepperdine wrote: Hi all. With the K1, is it better or equal to have the internal tuner built and installed internally in the K1 or is there a performance factor (better?) to use the external T1 tuner? Thought I would ask and get something ordered before the price changes. tnx Brien VE3VAW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 VFO B with K2 knob?
I bored out my K2 knob to fit the 1/4 shaft on my K1. I used a drill press and a 1/4 Dremel bit. I don't remember which one, but it was not a twist drill bit. The K2 knob is 6mm. 6mm is 0.236 in. so you need to remove .007 in. of brass from the wall. Since the knob would be hard to clamp, I would not use a twist drill bit. It would almost certainly grab and you would have a spinner. Better to grind. I drilled out a knob hole in a Junker straight key lever arm with a twist drill bit because I wanted 5mm threads and the bit grabbed the lever, which I had to retrieve from a new hole in the wallboard. Good Luck and 73 Rick Dettinger K7MW On Jul 17, 2008, at 6:09 PM, DaveL G3TJP wrote: Some time ago, I replaced the K2's main tuning knob, complete with finger dimple, with another more user-friendly knob from the (*S!) Yaesu stable, In a fit of admiration of my new K3, it occurred to me that the original K2 knob might very well make a handy substitute for the K3's VFO B knob, particularly if the K3's tilt bail was in use. I was disappointed to discover that the K2 knob's hole was a shade too small to fit on the K3's VFO B shaft. There seems to be only a few thou difference, which might be worth drilling out, but has anyone else tried this and if so, with what result? 73 DaveL G3TJP ___ 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: Band Button
The solution is really very simple. Just have a bank of K3's. One for each band of interest. With a switching arrangement to suit the operator. Hams can't leave everything up to the rig designers. Also, maybe the firmware download could have a menu, with user selectable features. One size fits all firmware can't please everyone. 73 Rick Dettinger K7MW = On Jul 26, 2008, at 7:04 AM, Dave Agsten wrote: Wow - never thought anything as simple as a band select button would cause such commotion. Back when there were rotary bandswitches you had to go through 40 to get from 80 to 20. How did we ever manage that? Such silly stuff. 73, Dave N8AG PS - wonder which button is next on the list? Oh, that's right, the Mode button. ___ 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] ESD Safety
Looks like the only solution is to work under water. All of the voltages exceed the 30 volts or so level we have heard cause damage to sensitive components. 73 Rick Dettinger K7MW On Jul 26, 2008, at 9:51 AM, Ron D'Eau Claire wrote: This is a subject that comes up here regularly among those working on their Elecraft (and other) rigs. Doing some research on a project, I ran across the following values published by Hewlett-Packard Company. They provide some insight about why it's important to use ESD-safe handling procedures. The PCBs mentioned below are, of course, Printed Circuit Boards, not the stuff found in old capacitors and transformers. DIPs are Dual In-line Pin integrated circuits such as found throughout Elecraft rigs. Typical Electrostatic Voltage Levels Relative Humidity for each voltage level shown below: 10% 40% 55% Walking across carpet 35,000 V 15,000 V 7,500 V Walking across vinyl floor 12,000 V 5,000 V 3,000 V Motions of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic tube 2,000 V 700 V 400 V Removing DIPS from vinyl tray 11,500 V 4,000 V 2,000 V Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V Removing bubble pack from PCB 26,500 V 20,000 V 7,000 V Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V 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 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] Tricks to K3 assembly (WAS: Prospective K3 Owner)
I use 3 oz. paper cups to keep small parts in. I can move the one I am using to the front and as they get emptied, I can remove them from the work bench. Rick Dettinger K7MW On Aug 26, 2008, at 6:40 PM, Lee Buller wrote: I do not like egg cartons or muffin tins. These are to big for my work space. I like plastic ice cube trays. Dollar Store Cheap...many slots...can make ice after the build. Lee K0WA ___ 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] K3 VFO split problem
My K3, Serial Number 556, is not working properly in the VFO split mode. I only work CW and when I hold split, the CW speed control light changes to the MIC light. The transmitter will then not key. Switching back to transceive restores the ability to key the transmitter. This happens on all bands except 80, 40, and 30 meters. On these three bands, everything works as it should. This might be a clue, as these are the only bands I normally use. I just found this out today when I went on 20 meters. I usually use split instead of RIT, as I prefer to use the larger knob. My firmware is 02.39 and 01.91. Any ideas? Did I not set up all the bands correctly? Thanks and 73 Rick DettingerK7MW ___ 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] K3 VFO split problem
Yes, that was the case. When I set up the band memories, I didn't make sure both VFO's were properly set to CW. Since I normally have the display set to real time clock mode, I didn't see the offending USB indicator on VFO B. Thanks for the many correct answers to my problem. That was very quick. A great list. 73 Rick Dettinger K7MW On Sep 22, 2008, at 3:28 PM, Eric Swartz - WA6HHQ, Elecraft wrote: Sounds like you have the other VFO on each band set to SSB. That would change the default mode for that control to Mic Gain from CW Speed. A single tap of A-B only copies frequency. A double tap of A-B copies all other parameters (mode, filter etc.) 73, Eric WA6HHQ Rick Dettinger wrote: My K3, Serial Number 556, is not working properly in the VFO split mode. I only work CW and when I hold split, the CW speed control light changes to the MIC light. The transmitter will then not key. ___ 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 Rigs in Emergency Service...
I wonder if the Ham injured in the mountains knew to use QRRR? I wonder how many Hams today know what it means? Perhaps he got lucky hearing that guy tune up and getting an answer to his call before he needed it. Ron AC7AC I wonder if he would be advised to use QRRR, if most hams don't know what it means? Rick Dettinger K7MW ___ 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] OT--K3's Approaching 2,000
On Sep 30, 2008, at 10:12 PM, David Yarnes wrote: Hi All, I just have to say that, notwithstanding all the sticky problems we've seen in production, it's pretty darn amazing that we are getting close to having 2,000 K3's out there. And apparently demand is still pretty strong. Dave W7AQK ___ Looks like K3 production may pass K2 numbers in about 2010. They are about a third of the way there now. The K2 had an 8 year head start. 73 Rick Dettinger K7MW ___ 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] K3 Real Time Clock Display
Mine has been gaining a little over 1 second a month. I had assumed that the RTC used the TCXO as a time base but it doesn't. It has its own oscillator. 73 Rick Dettinger K7MW On Nov 23, 2008, at 7:36 AM, Gil Cross wrote: Just checked my RTC for correct time. Has been running a year now and was only 2 min.- 8 sec slow. Not bad 73 Gil - Original Message - From: Terry Schieler To: elecraft@mailman.qth.net Sent: Saturday, November 22, 2008 7:34 PM Subject: [Elecraft] K3 Real Time Clock Display I have had the clock displayed on my K3 since day one. Today I noticed that tapping DISP only rotates between the VFO B Frequency readout and the current date. Went into CONFIG and TIME and the clock was still set to the second. I’m sure it’s something simple I bumped somewhere along the line. Any help would be appreciated. Direct preferred as I get the reflector in digest mode and on a different computer than this one. Thanks. Terry, W0FM K3/100 #474 ___ ___ 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] OT: US call areas
I've got to say, back in the olddays, there were always hams who complained BECAUSE they were required to change their callsigns if they moved, so I think the complaint level is similar. 73, doug == Not only did we have to change our callsigns if we moved, we had to show our call area when portable and notify the engineer in charge in the area we operated portable prior to going on the air. And we had to monitor CONALRAD in case WW3 broke out during the QSO. And log all on the air activity to justify renewal of our licences. This was in the late 50's. 73 Rick Dettinger K7MW ___ 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] Separate list for K3
I would like everyone considering cancelling thier K3 order due to any reason to do so at once. I may yet get my very own K3 by Xmas. I think my serial number may already have decreased by one or two. 73 Rick Dettinger K7MW ___ 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] [K3] Assembly
This may be common sense and/or mentioned in the Assembly Manual but: if your Phillips screwdriver does not have a magnetized tip it would be a good idea to find a magnet and lightly magnetize the tip. The K3 is not tiny but it is close quarters inside. In many cases having the screwdriver magnetic field hold the screw (and the washer) sure beats trying to place the screw with your fingers (as I finally realized). Mike W5FTD I have found that a small long nose pliers works well for holding nuts or machine screws in place while applying torque to the other end. 73 Rick Dettinger K7MW K3 # (n-?) ___ 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] [K3] SN 174 arrived at 11:45z today
David Ferrington, M0XDF wrote: Subject: [Elecraft] [K3] SN 174 arrived at 11:45z today Mr Brown knew I was waiting for this, he paused to let me take a photo :) Inventory tonight, but real bad cold, so need to feel better before assy. == David, we need to know when you placed your order. Then we can update our calculations (guess?). 73 Rick Dettinger K7MW ___ 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] K3 Silver tongued devil
If you want to know the numbers, Elecraft is currently shipping 15 to 20 K3s per week, and if the shipping date for current orders is mid-April, then there is somewhere between 255 and 340 K3s on order right now - simple calculation reveals that result - what more information do some folks need? 73, Don W3FPR Eric indicated that the equation is non linear. Therefor, I think we need at least one more data point. Somewhere around, say, a July 25 order date. Just as a for instance, of course. :) 73 Rick Dettinger K7MW ___ 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] K3 #266
Right, that blows my theory of 250 for the first prodn run! Beginning to look like 300 then. Chris G3SJJ Remember that there are about 25 test K3's so the 1st production run could still be 250 units. 73 Rick Dettinger K7MW ___ 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] K3 Silver tongued devil
I look forward to my Fully Optioned, Factory Assembled K3 in Feb. or March (according to Lisa) and I am not worried in the least about any delays needed to improve it's performance. Keep up the good work, Elecraft! Tom, N5GE - SWOT 3537 - Grid EM12jq = Another data point. Tom, what we gotta know is, when did you place the order? 73 Rick Dettinger K7MW ___ 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] K3 - New arrival
K3 kit ordered July 25, 2007. #556 arrived March 6, 2008.73 Rick Dettinger K7MW ___ 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] Why buy a K3
...In a nutshell, other than perhaps a second receiver - what benefits does the K3 really have over a K2 - (in layman's non-engineer language :-) Are you interested in CW (K3 has better QSK), SSB (K3 has IF clipping, AntiVOX, really good filtering that is easy to use), Data (K3 has an internal decoder for RTTY and PSK, and an isolated soundcard interface built in), contesting (K3 has a stronger receiver, lower phase noise)? Are you plagued by noise (the K3 has a better noise blanker plus DSP noise blanking)? Are you a VHFer (K3 covers 6m, and has FM)? 73, Lyle KK7P == I don't do SSB, Data, contesting or VHF but I still want a K3. I will like having general coverage and the tuning rate of the K3 is just right. The K2 rate of 1 khz per turn is too slow and the faster rate has big jumps in the pitch. Very annoying to me. The tuning knob is as good as any and there is more room on the panel. Low phase noise sounds good to me but I am not sure that I ever noticed any problem with my K2 in that respect. Passband tuning will be nice, also. I have never used DSP but i am interested in trying it. 73 Rick Dettinger K7MW ___ 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] Sidetone or zero beat
Most modern transceivers, including the Elecraft rigs, have virtually no output within 100 Hz or so of the carrier frequency, thanks to the excellent I.F. filters they use. That makes finding zero beat with the sidetone mandatory to avoid an error or 100 Hz or more in trying to tune onto the other station's frequency. Ron AC7AC == My Drake R4C had good IF filters but I could move the filter over to the carrier frequency with the excellent passband tuning and see the beat note on the (analog) S meter. The needle would go from a fast vibration to a slower one with more movement as I approched zero beat. No hearing needed. This was how I set the xtal calibrator to zero beat with WWV. Then , I could read a frequency to the nearest khz, something I could only dream of with older rigs. 73 Rick Dettinger K7MW ___ ___ 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] why I chose K3
I was just about to spend extra $$$ on rtty and psk gear when up popped the K 3 with that built in. WOW Charles Harpole == That must make Yacomwood very happy to read. (: Rick Dettinger K7MW ___ 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's 1-Year Limited K3 Warranty?
That first consumer purchase wording is informative - it could indicate that sometime in the future I may be able to buy a new Elecraft product over the counter at HRO and other ham gear stores. I really don't know if Elecraft is looking at the sales outlet possibility seriously, but if it occurs, the warranty now covers it. 73, Don W3FPR = I was thinking that HRO couldn't be happy about the K3 as there will be little reason to buy any other rig. But if they can sell them, that is another matter. I don't know if there is enough markup in the K3 to support second party retail sales. It seems like we are getting alot of radio for the dollar. 73 Rick Dettinger K7MW ___ 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] K3 serial numbers
I assume the K3 will have serial numbers like the other Elecraft rigs. I am wondering if the numbers will be different for factory build v. kit build? Anyone heard? Thanks 73 Rick Dettinger K7MW ___ 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] Questions for any K3 FTs
The Lawrence Berkeley National Laboratory did a study* of ten homes in California and found that between 5% and 25% of the total electrical demand was to supply equipment that was turned off with standby power. A fellow might buy a fully-loaded K3 with the savings... Ron AC7AC And remember, if you have air conditioning, you will need to purchase more electricty to pump this energy out of your house. You pay twice. Rick Dettinger K7MW ___ 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] Pomona Adapter Query
Ken: Thanks. What I already have must not be standard banana plugs, because they won't fit. Guess I'm going on a shopping trip... 73. If I remember correctly, Pomona makes a standard size adaptor and a miniture one. I bought the smaller one and I like the size for portable operations as it fits in a small package better. I don't know if they make a plug to fit, but I would think so. I just double the end of my #24 antenna and ground wire and tin it. Insert thru the small hole and tighten the plastic nut. It seems to last a long time. Also, it is field repairable with a small knife if the wire plug breaks. I just moved into a new house and have been using just such a portable antenna for two months now with no breakage, yet. 73 Rick Dettinger K7MW ___ 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] smaller caps?
Look at the cost of packing, shipping, and storing, say, a DX-100 and K2/100. That all comes out in the price. Depends what you mean by normal. And people buy the things. 73 de Jim, N2EY = Also, we didn't have to carry our DX-100's into the computer room to update the software. 73 Rick Dettinger K7MW ___ 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] proposal: why not design a monoband CW/SSB QRP TRX
I had all QSOs on 40 m. 40 m is where the action is, day and night. Others might favor other bands. But I would fancy a great monoband transceiver. More than a decade after the Norcal 40 A, I bet Wayne can amaze us all again! 72, Chris Hs0zfe = I agree about 40 meters. I have often said that I could do about 90% of my operating with my Norcal 40A. But I disagree about the need for a new 40M monoband design. The simple analog design makes it a delight to use. No digital quantum jumps in the tuning. No operation manual or cheat sheet needed. The only change for home use would be to use the K2 mixer design and this would more than double the cost as it involves more than just subbing a TUF mixer. Compare the two designs. The power consumption would increase considerably. Mods to customize for user preference are easy. I like to use multiturn tuning pots like the K1 uses. But I still have a K3 on order. 73 Rick Dettinger K7MW My rigs and raisins come from Aptos, CA. ___ 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] Pelican Case for K1
What Pelican case is a good fit for the K1? 73's -- Norm K9NK ___ Norm - I use the 1150. I can just fit a complete, minimalist station in it with ear buds, Palm Paddles, #24 wire for antenna and counterpoise, pen and paper. This was when I used internal batteries. Now, I use external batteries which I carry seperately. 73 Rick Dettinger K7MW ___ 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 in 19inch Rack?
Has anyone attempted mounting a K2 into a 19 inch rack case either with or without the case? Its something i am contemplating doing. This might be a kit suggestion idea for Elecraft. A new front panel design that will mount in a 19 inch rack case. It certainly could enhance the ergonomics of the K2 and breath some more life into the K2 as a fixed station radio. Craig VK3HE === At just under 8 inches wide, you could get two K2's side by side. With all the controls mounted to the K2's front panel board, it would be hard to expand the size in order to use larger knobs with more clearance between them. Maybe new controls mounted on the new panel and wired to the K2 front panel. Would need to cut the square holes for the push buttons. Not for the faint of heart. And a hole for the real S meter that a larger K2 would sport. And a front panel mounted speaker. Maybe an analog clook removed from an old Hammarlund HQ-180 receiver. While we are at it, lets use those Hammarlund knobs, too. You wouldn't need to put one hand on the rig to keep it from sliding across the table top, while checking the filter settings. My friction coefficient is such that I can tap one button but not two at the same time without relocating the rig. Last week I entered the shack to find the K2 shoved tight aginst the wall. A small tree had fallen across a guy for one of my antennas and gave the coax a good yank. This was due to the same storm that took Elecrafts Net Control Operator first class off the air a week ago. A large enough rack panel might stand up to a tree of that size. My tree, not Kevins. Rick Dettinger K7MW ___ 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] Norcal Sierra - Wilderness Radio Sierra - Dans SmallParts
Why don't you just build a K1 instead? I have a Sierra here with all 9 band modules. It is a fine rig, although it needed various add-ons (DL-QRP-PA, KC2 Keyer/Counter) to make it nice to use. If I was starting again, I would get a K1 73, Dave G3VGR K2 #4783 === I have built both the K1 and Sierra kits. Advantages of Sierra are all 9 bands and ease of operation. No manual needed for this non digital radio. These are the radios I prefer to operate. No thinking necessary. And you ger a real RF gain control. It is actually an RF cut control but it does control the imput to the IF filter, unlike most modern radios. I think all other advantages go to the K1. Over twice the power. Many Sierra owners do mods to increase the power, with more or less sucess. Increasing the voltage to max is the easiest. The K1 has optional internal tuner. The tuning rate is far better. At least twice as good. And tuning is smoother. And with my kits, the K1 has been more stable. The conversion schemes for both are similar so I don't think there should be much preformance difference. If you build the Sierra, there are over 80 toroids to wind if all bands are included. If the Sierra had the K1 VFO and 5 watts out, I probably would prefer it to the K1, for home use, but it doesn't so I sold mine and kept the K1. Rick Dettinger K7MW ___ 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] K1 Bandwidth Question
It wouldn't seem to provide much advantage. The bandwidth of the four-pole crystal IF filter may be adjusted in three steps from about 200 to 850 kHz. The selectivity as designed is outstanding. Mike / KK5F K1 #175 since 11/2000 I usually use an outboard audio filter when operating at home. I agree that it is not needed for selectivity but it makes the sidetone sound like my K2 and I enjoy a clean CW note. I think one problem with a simple low pass filter is that the K1 has a wide range of possible sidetone pitch and a cutoff frequency that would help someone who uses a low pitch as I do would not pass a high one. Thus, filters would need to be adjustable or custom designed for the desired pitch. Rick Dettinger K7MW ___ 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] AGC Independent S-Meter?
For CW signals the solution was easy. One added a hard limiter to the audio channel. If a really strong signal was encountered without warning, it was clipped of at some preset maximum volume (below the threshold of pain, hopefully). Most operators used the limiter at all times in case a huge signal came on frequency. Ron AC7AC I wonder if it is possible to adjust the AGC on the K2 to only work on strong signals, to act as a hearing protection limiter only, with little action on all other signals. I understand this would work for CW only rigs. I like to use my K2 with AGC off, but value whats left of my hearing. Was that why old time commercial operators wore headphones forward of their ears? Be hard to do with modern cushion phones. Rick Dettinger K7MW ___ 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 paddle fix?
Subject: [Elecraft] KX1 paddle fix? Any ideas on keeping the paddle screw tight? Mine seems to work loose easily, Locktite or similar would work but I want to remove it. 72, Bob KI0G === You might try beeswax. It can act as a reusable loctite. Some bicycle wheel builders use it to prevent spokes from unwinding from their nipples. Rick Dettinger K7MW ___ 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 K3
I did it a couple of times, and wife never found the trick. Maybe you shall inform all visiting OM not to give you away... Cheers, IK4YNG Paolo = Paolo - You left out one important point. Don't announce the deed on an open reflector. (: Rick Dettinger K7MW ___ 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] {K1 2277] VFO Alignment--VFO Range selection, 40m, 20m.
: Re: [Elecraft] {K1 2277] VFO Alignment--VFO Range selection, 40m, 20m.
I had my K1 originally setup for 80 khz. I redid it for 150 khz. It
actually covers about 170 khz now! It does get a bit touchy, but still
very
nice. I have since replaced my ten turn pot (tuning control) with the
metal
shafted one and it is MUCH better. The plastic shafted one was OK but
got
a bit sloppy after a couple of years of use. If you plan to use the rig
as
a primary rig, I'd say install the metal shafted pot from the get-go!
They
are under $20 shipped from Mouser as I remember.
73,
Sandy W5TVW
=
I also changed to 170 khz and like it better now. I installed the metal
shaft ten turn pot at build time. It has a nicer feel. 17 khz per turn is
not bad. I changed to a K2 knob and like that better, also. It was
necessary to ream the knob hole to 1/4 inch from 6mm. The K1 knob went on
another rig.
73
Rick Dettinger K7MW
___
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Re: [Elecraft] Elecraft Product Ideas
1. A 13.8vdc dual-6146 TUBE AMPLIFIER, separate box, with view of the tubes ... 200 watt PEP. I know it may sound odd - but TUBES crank it out better than solid state - no matter what they tell us! First, you may be hard-pressed to get 200 watts PEP out of a pair of 6146's. Typically, these babies are 180-200 watts INPUT. . - That was true for linear amps for SSB service but CW purists could crank up the plate voltage to around 900v. and get 240 watts input class C. - maybe 170 watts out. Plans are in the 1975 ARRL handbook. (T9er) . In linear service, 100 watts out would be about max. -- 9. Elecraft HF PORTABLE TUNER Kit; meter, dummy load option, Elecraft K2 gray, 15/200W ranges. The KAT100 doesn't do this? All you need to add is a dummy load. --- I think the KAT100 only does this for the K2. This new kit would be useable for all rigs, like the T1. Rick Dettinger K7MW ___ 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 Product Ideas
One reason Elecraft (or any other manufactor of kits) would be unlikely to offer tube amps is that they don't want builders putting der fusin blowing fingers in a rig with a kilovolt B plus supply. Or multi kv supply for high power (QROo?) amps. One big advantage of solid state rigs. But I still can and do blow the fuses. 73 Rick Dettinger K7MW - Original Message - From: Sandy W5TVW [EMAIL PROTECTED] To: Bill Coleman [EMAIL PROTECTED]; Fred (FL) [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Tuesday, May 23, 2006 7:09 AM Subject: Re: [Elecraft] Elecraft Product Ideas My answer would be: Don't use 6146's! two Raytheon 4D32's would do the job much better. They are as cheap as 6146's now. 73, Sandy W5TVW - Original Message - From: Bill Coleman [EMAIL PROTECTED] To: Fred (FL) [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Monday, May 22, 2006 10:04 PM Subject: Re: [Elecraft] Elecraft Product Ideas | | On May 22, 2006, at 8:35 AM, Fred (FL) wrote: | | Anyone out there - think a 200Watt PEP tube | 6146 amplifier - would cut it with a K2? | Why? Why not? | | You gonna run four tubes to get 200 watt PEP out? | | I've been through this, Fred. 6146's were great in their day, but | that day has passed. Get the KPA100 and mount it in an EC2 case. | There's your external amplifier. | | 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 | | | | -- | No virus found in this incoming message. | Checked by AVG Free Edition. | Version: 7.1.392 / Virus Database: 268.6.1/344 - Release Date: 5/19/2006 | | ___ 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 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 power output measurement accuracy?
- Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Darwin, Keith [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Wednesday, May 24, 2006 9:29 AM Subject: RE: [Elecraft] K2 power output measurement accuracy? K2 - all it takes is a known non-reactive 50 ohm load. I use 1% precision thick film power resistors, so I know my dummy loads are good to 50 MHz or more, and with these loads, I know the base K2 power indication to be accurate. If you have the basic K2, the power control circuits will adjust the power to make the RF voltage at the power detector probe equal to that required to produce the requested power into a 50 ohm load -- but if the load is different than 50 ohms (as it will be with a 1.2 SWR), then the power indication will not be correct - tosay how far off it will be requires knowledge of the resistive and reactive components of the 1.2 SWR (all 1.2 SWRs are not equal, the range of possibilities form a circle on the Smith Chart). 73, Don W3FPR --- With my K2 into a DL1, my WM-2 meter shows up to 20 % higher power than my DMM and slide rule indicates. Is the DL1 likely more accurate than my WM-2 meter. If so, I will recalibrate my K2 with the DL1 and DDM. Than I will have a stronger QRP signal and be able to work 300 new countries. I could also recalibrate my WM-2. Also, I wonder if the K2 maximum output power is increased if the voltage goes up. Just in case I need to cheat a little with QRO power (15watts or so). But I promise not to get an amplifyer. 73 (72) Rick Dettinger K7MW ___ 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] Ideas - new Elecraft Products
- Original Message - From: Vic K2VCO [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Wednesday, May 24, 2006 5:13 PM Subject: Re: [Elecraft] Ideas - new Elecraft Products Fred (FL) wrote: It is said, McIntosh's TUBE AMPLIFEIRS still draw BIG BUCKS, for the hi-fi/stereo buff. Why? Because some people confuse superstition and science. -- 73, Vic, K2VCO Fresno CA -- When I worked for a power company, our customer representative got a call from a customer wanting to know how his power was generated . He had read an article in a stereo magazine informing the readers that power generated by natural means (hydro,wind or solar) would produce more natural sounding music. Its hard for engineers to give advice in such instances. My impulse was to tell him that our power was not only natural but organic also. Rick Dettinger K7MW ___ 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] Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, ...
Bill said: If we made these old radios 10 or 12 tall, how do we effectively use all the space in the box more than 5 above the chassis? - --- It makes a nice warm place to raise the bread dough (: Rick DettingerK7MW ___ 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: K1 frequency range
- Original Message - From: rlpend [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, June 11, 2006 10:55 AM Subject: [Elecraft] re: K1 frequency range If I exchange C2 with C2a to expand frequency coverage to c. 150 khz will I need to re-peak all the filters and re-calibrate the receiver? Thanks. P.S.: the backlight kit is a wonderful addition to the K1. Bob N5JYW ___ 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 I just made this change. No need to re-peak the filters or re-calibrate the frequency readout. I did, however, have to adjust the turns on the VFO coil, to get the VFO range in spec. I don't remember if I had to expand or compress the turns. I am happy with the result. I get about 170 khz tuning range. Thats an average of 17 khz per turn. Not bad. And the backlite is a nice touch. 73 Rick Dettinger K7MW ___ 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] High End Paddles
Using a bug is a very a *physical* activity compared to keyer paddles. Ron AC7AC Yes, the way Morse code should be. A full contact sport. When my shoulder gets sore from pumping my Swedish hand key, I switch to my bug for some rest. Rick Dettinger K7MW ___ 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] Melted J3 Connector on K2/100
So if you melted your Anderson connector, it had unusually high resistance for some reason. Ron AC7AC - And a relativly large voltage drop. This would show up as a low voltage at the rig. This is why it is important to monitor the voltage at the rig. If there is an unexpected low voltage at the K2, the cause needs to be determined. Rick Dettinger K7MW ___ 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] KSB2 in K2/100
John - KI6WX said: (fyi - the reflector generated over 2000 emails in the last 2 months). == No wonder I havn't got the house painted! Rick Dettinger K7MW ___ 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] K1 # 2208
Hello All... I am delighted to report K1 # 2208 came to life June 18th and can be found lurking on the low end of 20 and 40 meters been wanting one of these little jewels for a long time and after reading all the great reports and info here worked up my courage took the plunge ... am very happy with the results... now need to convience myself I can manage to build a K2... 73 de W8MLL - I have built both and would say that if you can build the K1, you can build the K2. It just takes about 3 times as long. The individual operations are about the same. If you install each component correctly, you will have a working radio. If not, you will learn alot about troubleshooting. 73 Rick Dettinger K7MW ___ 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] Watkins-Johnson (now audio filters)
Alex, I recently built an Idiom Press SCAF-1 audio filter and it was a vast improvement for my Icom-706IIG (it doesn't do much if anything for the K2). 73, Doug W6JD == I built the SCAF 1 and agree with one exception: I don't have good communication headphones and use Sony stereo 'phones. These are hifi and I get serious thumps from the K2, even with the AF 1 turned on. This is true with other rigs as well. The SCAF 1 removes this noise. I just need to make sure I don't overdrive the SCAF 1 as it is very sensitive to this. The filter really cleans up less than pure sidetone audio, too. I would like to get some good communication 'phones, without the microphone thingee. Any recommendations. I like the kind that seal out external noise. I like to use a bug but the damper clacking is distracting to me. 73 Rick Dettinger K7MW ___ 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
I find the T1 does very well with a very high impedance. I end feed 1/2 wave wire connected right to the T1 with a counterpoise and it matches right up! I ran a test and the T1 can match a 4700 ohm resistor. So it's not bad with high resistance. 73 Karl == I wonder if an end fed half wave antenna is a high resistance if a counterpoise is used. This actually would look like a 3/4 wave (with a quarter wave counterpoise) offset fed antenna with no feedline. This would be a resonant antenna with a few hundred ohms at the feedpoint. Most of the radiation should be from the half wave section so should be an efficient antenna. 73 Rick Dettinger K7MW ___ 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] Anyone compare K2 RX with a classic rig?
Hi folks, Lately, I've been on the hunt for a 2nd receiver just for fun. I'm looking for Drake R-4B. During this time, I've been wondering if I'll want to put a full B-Line on the air or will just have an R-4B as a backup RX. The answer to that depends largely on how the R-4B (or A if that's what I end up with) sounds performs compared to the K2. I continue to be impressed with the K2 receiver. I'm wondering how it compares to the R-4* receivers or any other non-DSP boat anchor classic receiver from years gone by. I've already compared it to an Omni V and IC-735 and the K2 was better than either. We won't even talk about how much better the K2's RX is than the Century 21 or Century 22 :-) I had a very mint TS-830s but not at the same time as the K2 so I didn't get a chance to compare them. K2 vs. Drake R-4B; there are several things we know going in. K2 uses xtal filtering in the IF. R-4(A,B) use LC. K2 is single conversion, R-4* is triple. This suggests to me that the K2 will have better rejection of off freq signals and a better S/N ratio. Actual results are TBD. I'm sure at least one of you has a classic Drake or Collins rig that you've had a chance to compare to the K2. What say ye? - Keith KD1E - - K2 5411 - = Keith - I had an R4C and liked it alot. However, it can't compare with the K2 for receiver dynamics. Unless it has the Sherwood Engr. front end mods. More important to me is the QSK with the K2. The R4C used vox for keying. In my opinion, the greatest advantage to modern rigs is the QSK keying. Its like turning the lights on in a dark room. And as far as dynamic range goes, not only does the K2 have all the boat anchors beat, but I think the K1 does also. Recently, QST reviewed an old Collins and found an IMD dynamic range in the low 70's. The K1 is about 20 db better. However, you will enjoy using the Drake. Besides an ergo layout and real knobs, it has proper passband tuning (at the expense of several stages of conversion) and an analog S meter. I may be thinking of of a K3 here. 73 Rick Dettinger K7MW ___ 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] Straight Key on my K2
One of these days I'm going to build a jack box that will have several jacks all paralleled together into a common 1/8 TRS output. That way I can plug in many things, mixing and matching keys as the spirit moves. - Keith KD1E - - K2 5411 - = Keith - I am going to do the same thing, but with a switch to be able to output to different rigs. Its importamt to be mindfull of grounds. Otherwise, the circuit might not be long enough (a little short), if the key bases touch. Ideally, I would like to do this in the keyer box. Right now, I have multiple jacks in my keyer box in parallel with my keyer output jack but I have to move plug to the rig de jour. I need to decide on RCA or mini phone jacks at the keyer. I am leaning toward RCA as I have had better luck with reliability that way. Someday. Rick Dettinger K7MW___ 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
