Re: [Elecraft] Elecraft K2 S/n 01432 Construction Update..
On Tue, 12 Apr 2005 18:59:42 +0100, Andy GM0NWI wrote: I can now say WITH convictions...! that I feel rather stupid...and small for overseasing this foresight..! Don't ever feel that about construction Andy. This morning I did some more work on a Doppler DF system that I am building, and managed to short +12V to an adjacent pin that should only have had 0 to +5V on it. The result was a dead PIC microcomputer. Until I did that everything was working fine. Oh well ! never mind, another PIC on order 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
In a message dated 13/04/05 01:44:15 GMT Daylight Time, [EMAIL PROTECTED] writes: One of the insturments I always wanted for home use was a spectrum analyzer. Nice to have sound card analyzers with software and all, but a real rf analyzer in a small, functional package would be so great. With some careful trade off decisions it might even be affordable! The display is a big headache if you don't have a good Oscope handy but a creative designer [or two] might be able to do the job. I suppose it would not have the broad appeal of a K1, 2 or even a very compact antenna tuner, but it might appeal to a few hundred hams and others who do bench work. Wayne K9NE Yes, I know about the projects already on the web, but how many of you have actually rounded up all the stuff to build that one? -- Al Helfrick, K2BLA did a series of articles in the 1980's on just such an idea. The one published in RF Design, January 1988 had a 3 chip design for use with a cheap general purpose oscilloscope and was based on the MC3356 chip as the heart of the project. In November 1989, Radcom published an article by Roger, G4PMK that expanded on Al's ideas with a practical version that would cover 1 - 90MHz with a logarithmic display, 50dB dynamic range and a built in marker generator. The MC3356 converts the incoming 1 - 90MHz up to 145Mz where a Toko helical filter provides some selectivity. Is then down converted to 10.7 IF with an NE602, at which point the main selectivity is achieved with filters. The clever bit after this is the use of the second section of the MC3356 chip to provide a logarithmic IF and detector. A kits of parts and a PCBs were offered at the time so one was built. My basic analyser covers up to 97 MHz and have extended the range with external converters up to the 70cm UHF band. Believe the MC3356 chip is now obsolete so could be difficult to replicate. A handy tool for tracking down RF spurii and interference problems within it's capability. Commercial small spectrum analysers tend still to command a premium price on the surplus market and the main that are available tend to be large and heavy. I have such a one, the HP 141T/8554B combination. Can make your eyes bulge carrying the instrument, but still has a good performance considering it's age. This was our instrument of choice up to recent years with the HP 8555A plug in for maintaining analog microwave systems. For my own personal use at home tend to use the homebuilt device first and only pull out the HP 141T when circumstances force me to. Noticed a more recent design offered at a hamfest last year that covered up to 500MHz or more with what appeared to be a cable TV tuner at the front end. There are probably other built and kit versions of these spectrum analyser adapters available in the market. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
In message [EMAIL PROTECTED], Earl W Cunningham [EMAIL PROTECTED] writes I just received the following e-mail about a toroid winding machine. Perhaps it may interest some of you Elecrafters. It was spam, so take it for what it's worth. 73, de Earl, K6SE Hi Earl, Interestingly I received the same mail here. I suspect that as we were both in this group when the discussion about toroid winders took place over a year ago and many of us were looking at various sites to do with these machines, this is probably targeted advertising rather than blind spam:-) I would not be surprised to find many of the regulars targeted the same way if they don't use a spam trap whilst on this list. (This is the only list I don't use a spam trap on and I intend to keep it that way:-) Trev G3ZYY -- Trevor Day UKSMG #217 www.uksmg.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Potential Elecraft Kit
On Wed, 13 Apr 2005 02:50:19 EDT, [EMAIL PROTECTED] wrote: In November 1989, Radcom published an article by Roger, G4PMK that expanded on Al's ideas with a practical version that would cover 1 - 90MHz with a logarithmic display, 50dB dynamic range and a built in marker generator. I built one of these simple spectrum analysers, and it works well within it's design spec, however I find that I don't use it. This is because of the Wide Resolution Bandwidth, it is OK for harmonics and widely spaced spurious, but for in-close (50kHz) measurements it does not cope. With DDS and support chips now available at reasonable prices it should be possible to produce a performance spectrum analyser (including good IF filtering) at a modest cost. How about it Elecraft ? 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 shakedown
This is a nice rig, and very much up to my expectation, although the temptation to lie on the couch with a wire hung over the curtain rod and tune around is great! Hey, what's wrong with *that*?! This great little rig makes it possible. Stronger signals can be detected on the wrong side of zero beat, although this is barely noticable except in the case of very strong (like AL7FS just down the streeet) signals. Tell AL7FS to get a QRP rig... like the KX1 :) I too notice the detection on the other side of zero beat, as you mention. I suspect it's normal. I just treat it as a curiosity and tune to the other side. I love this rig. --Anbdrew ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
TAPR has a nice VNA project going, www.tapr.org... it was featured in a July/August QEX. They are also going to offer it assembled I think thru Ten-Tec. It does a lot more than an antenna analyzer to boot, but requires a computer so is not portable. It does all the complex impedance measurements, but since it has its own DDS signal source, it can also display gain/loss type measurements, differential phase and gain error, etc. Larry N8LP Julian, G4ILO wrote: If Elecraft is going to get into making kits for more sophisticated test equipment, I'd like to see an antenna analyzer. The MFJ ones are ridiculously overpriced over here, and it's not practical to bypass rip-off UK dealers and buy direct because MFJ levy a deliberately inflated international shipping charge. Besides, I'm sure an Elecraft product would be higher quality. 73, ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
I would second the Antenna Analyzer. I have an MFJ unit, but it really can't be difficult to design a better unit. My requirements are as follows: - I don't care for portability (Although the Elecraft one would likely be small and portable anyway) - The ability to calibrate out a certain piece of feedline. - PC control, reporting - Frequency sweeps, with graphing (on PC), sweep PC controlled - Did I mention PC control? - Preferably standard RS232 comms, to facilitate developing new software. - Freq range up to 145 MHz (2m) at leas, pref to 500MHz. - OH, and PC control Cheers! 73 de ZR6SW -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Julian, G4ILO Sent: 13 April 2005 13:28 To: Elecraft List Subject: Re: [Elecraft] Potential Elecraft Kit If Elecraft is going to get into making kits for more sophisticated test equipment, I'd like to see an antenna analyzer. The MFJ ones are ridiculously overpriced over here, and it's not practical to bypass rip-off UK dealers and buy direct because MFJ levy a deliberately inflated international shipping charge. Besides, I'm sure an Elecraft product would be higher quality. 73, -- Julian, G4ILO G4ILO's Shack: http://www.tech-pro.net/g4ilo Stewart Baker [EMAIL PROTECTED] wrote: I built one of these simple spectrum analysers, and it works well within it's design spec, however I find that I don't use it. This is because of the Wide Resolution Bandwidth, it is OK for harmonics and widely spaced spurious, but for in-close (50kHz) measurements it does not cope. With DDS and support chips now available at reasonable prices it should be possible to produce a performance spectrum analyser (including good IF filtering) at a modest cost. How about it Elecraft ? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.7 - Release Date: 12/04/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Potential Elecraft Kit
May I suggest that people consider the N2PK Vector Network Analyzer. http://groups.yahoo.com/group/N2PK-VNA/ So far, I think it is a better design and is cheaper. Bob N4HY Larry Phipps wrote: TAPR has a nice VNA project going, www.tapr.org... it was featured in a July/August QEX. They are also going to offer it assembled I think thru Ten-Tec. It does a lot more than an antenna analyzer to boot, but requires a computer so is not portable. It does all the complex impedance measurements, but since it has its own DDS signal source, it can also display gain/loss type measurements, differential phase and gain error, etc. Larry N8LP Julian, G4ILO wrote: If Elecraft is going to get into making kits for more sophisticated test equipment, I'd like to see an antenna analyzer. The MFJ ones are ridiculously overpriced over here, and it's not practical to bypass rip-off UK dealers and buy direct because MFJ levy a deliberately inflated international shipping charge. Besides, I'm sure an Elecraft product would be higher quality. 73, ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Earlier version of Spectogram
I am trying to locate the earlier, free version of Spectogram for aligning filters in my K2. Does anybody have this program downloaded? The latest version that all the links in the Elecraft Resources URL seem to download a later version that the instructions don't really apply to regarding the examples in Tom Hammonds articles. Thanks and 73, Charlie, W0YG.. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
I have one and it's great, definitely better than the tapr one... but I didn't mention it because the project is currently closed unless you are willing to take one of a handful of left over boards, which require installation of some mighty small SMD parts. The original project had those parts already installed. They may get another one going, but it was a lot of work and I wouldn't count on it. There's also a VNA project underway in Italy, but I can't recall the details. Larry N8LP Robert McGwier wrote: May I suggest that people consider the N2PK Vector Network Analyzer. http://groups.yahoo.com/group/N2PK-VNA/ So far, I think it is a better design and is cheaper. Bob N4HY Larry Phipps wrote: TAPR has a nice VNA project going, www.tapr.org... it was featured in a July/August QEX. They are also going to offer it assembled I think thru Ten-Tec. It does a lot more than an antenna analyzer to boot, but requires a computer so is not portable. It does all the complex impedance measurements, but since it has its own DDS signal source, it can also display gain/loss type measurements, differential phase and gain error, etc. Larry N8LP Julian, G4ILO wrote: If Elecraft is going to get into making kits for more sophisticated test equipment, I'd like to see an antenna analyzer. The MFJ ones are ridiculously overpriced over here, and it's not practical to bypass rip-off UK dealers and buy direct because MFJ levy a deliberately inflated international shipping charge. Besides, I'm sure an Elecraft product would be higher quality. 73, ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re:Free Spectrogram program
Guy, got it. Thanks! 73, Charlie, W0YG.. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Could T1 tune a counterpoise ?
Many thanks for the answer. I thought that it tuned for max current... As I already have a current indicator, I will try my home-made QRO matchbox in series with the counterpoise lead, then measure inductance with my Autek RF-analyst, to copy it into a small device, maybe biband (160/80) if I manage to do it. Ok for my QTH, we have many sorts of both : I prefer those made from crude milk (FDA critical...), AND you forgot the third element : beverages (not the antennas). 72, Ron wrote : Excellent idea, IF the T1 actually tuned for maximum current. Unfortunately, it does not. It uses a bridge circuit to provide a 50-ohm non-reactive load to the transmitter. While that might be better than a short, untuned counterpoise, it is far from ideal. What I have done in your situation is to use a simple coil. A short counterpoise will be capacitive, so what you need is an inductance to bring it to resonance. If you are using a barefoot K2, a small inductor tapped every turn should be FB. I once made one wound on a cardboard tube that once held a roll of paper towels. What Ten Tec does is add a variable cap in series with the coil to allow for small adjustments in between the taps, and to provide a way to tune out inductive reactance in a counterpoise when it is electrically longer than 1/4 wave. You need a current indicator. That's easy. A small flashlight bulb in series with the counterpoise. Short it out after finding the tap with the greatest current. Your QTH makes me hungry for some French Bread and a wedge of Brie. 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] about this K2 mojo
I'm wondering about this K2 mojo that I keep reading about. Went into the shack last night about 23:30 UTC, turned on the K2, selected 20m, tuning rate to 1kHz and had a quick tune up and down to check for activity. Hmmm big pileup there on 14.202MHz. Fine tune, lots of static so dial in the KDSP NR, and choose a narrower filter (AF2). Good operator working the pile up - he's actualling giving his own callsign regularly! It's K9LZJ/PJ2 - Wheres that? A he's anouncing that too Curaco Island h fire up the laptop to look it up, it's the Netherlands Antillies. He's only about S3 so I don't suppose I'll break the US pileup from here (I can hear the US stations 9+30 or so and he's bound to be beamed that way), but lets give it a go. He's tuning up and down a few tens of Hz so work out which way he's going and set an ambush. Wait for QRZ and give a call - damm doubled him, wait for QRZ again, give a call - nearly fell off my chair when he came straight back and gave me a 55. Must be that mojo thing I guess. Well I suppose I was cheating by using VP8 mojo as well. Do two mojos add or multiply? Chris - VP8BKF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] about this K2 mojo
They definitely multiply Chris. I think you could probably break any pileup ;-) Larry N8LP Chris wrote: I'm wondering about this K2 mojo that I keep reading about. Went into the shack last night about 23:30 UTC, turned on the K2, selected 20m, tuning rate to 1kHz and had a quick tune up and down to check for activity. Hmmm big pileup there on 14.202MHz. Fine tune, lots of static so dial in the KDSP NR, and choose a narrower filter (AF2). Good operator working the pile up - he's actualling giving his own callsign regularly! It's K9LZJ/PJ2 - Wheres that? A he's anouncing that too Curaco Island h fire up the laptop to look it up, it's the Netherlands Antillies. He's only about S3 so I don't suppose I'll break the US pileup from here (I can hear the US stations 9+30 or so and he's bound to be beamed that way), but lets give it a go. He's tuning up and down a few tens of Hz so work out which way he's going and set an ambush. Wait for QRZ and give a call - damm doubled him, wait for QRZ again, give a call - nearly fell off my chair when he came straight back and gave me a 55. Must be that mojo thing I guess. Well I suppose I was cheating by using VP8 mojo as well. Do two mojos add or multiply? Chris - VP8BKF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
Mike S wrote: It's exactly because of clueless newbies like you that there is a spam problem in the first place. (The rest of his e-mail censored because of foul language) == I have NEVER bought anything nor visited a Web site advertised by a spammer. This clueless newbie has been into computer hardware and software professionally since 1966. (Retired 1994.) Bought (built) my first PC in 1979. Authored much ham radio software since then, much of it used world-wide today. Member of the Elecraft e-mail list since April 2002 -- others before that. Celebrating my 51st year as a ham (first licensed as W8DGP in 1955 - Extra Class since 1963). Newbie??? 73, de Earl, K6SE (not a vanity callsign) K2/100 #2622 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
Trev, G3ZYY wrote: Interestingly I received the same mail here. I suspect that as we were both in this group when the discussion about toroid winders took place over a year ago and many of us were looking at various sites to do with these machines, this is probably targeted advertising rather than blind == The immediate impression I had when I received the winder e-mail was that the spammer somehow knew I was an Elecrafter and that other Elecrafters would possibly receive the same e-mail (apparently they have). If that is true, I wonder how he got my (or yours and others) e-mail address because I have never searched the Web for a toroid winding machine nor have I ever visited any spammer's Web site. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Earlier version of Spectogram
Hi Charile: GO to www.n0ss.net and click on the Quik-Link to go to the Spectrogram v5.1.7 download. For what it's worth, RIGHT BELOW the Spectrogram download are located the docs for using Spectrogram to align your K2 or K1. 73, Tom HammondN0SS At 08:15 AM 4/13/05, you wrote: I am trying to locate the earlier, free version of Spectogram for aligning filters in my K2. Does anybody have this program downloaded? The latest version that all the links in the Elecraft Resources URL seem to download a later version that the instructions don't really apply to regarding the examples in Tom Hammonds articles. Thanks and 73, Charlie, W0YG.. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Filter alignment using Spectrogram
I don't know how one does this any other way. Now, for the first time, I can change filters without the tone or pitch varying! This is one procedure almost everyone should try! 73, Charlie, W0YG.. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
On Wed, Apr 13, 2005 at 07:54:05AM -0700, Earl W Cunningham wrote: If that is true, I wonder how he got my (or yours and others) e-mail address because I have never searched the Web for a toroid winding machine nor have I ever visited any spammer's Web site. Perhaps a web search for toroid winding machines led him to this list's archives (I got a couple of copies of the email, but my ISP's spam trap caught them). Some of these folks are pretty clever at mining email addresses. I have one address which I have only used a few times (never on a list) and it is now regularly receiving penny-stock spam. 73, Bob N7XY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Potential Elecraft Kit
On Wed, 13 Apr 2005 09:28:56 -0400, Larry Phipps wrote: They may get another one going, but it was a lot of work and I wouldn't count on it. There's also a VNA project underway in Italy, but I can't recall the details. The Italian VNA project is at http://www.qsl.net/iw3hev/Antenna%20Analyzer%201.8-60%20MHz-Eng.htm After much internal debate, mainly because of available time, I have placed an order for a built one (shame!). I will let the group know how it performs when I get it. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] about this K2 mojo
It depends on the units of measure for the mojo. If it is a linear unit, then they multiply, if it is a log unit (like dB) then they add. Mark, NK8Q k2 #4786, it definitely has mojo! Must be that mojo thing I guess. Well I suppose I was cheating by using VP8 mojo as well. Do two mojos add or multiply? Chris - VP8BKF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: How are T1s built [WAS: Need winding machine?]
Assembled T1's are built in California, not far from Elecraft World Headquarters near Santa Cruz. The trick is to make a lot of them at once ;) 73, Wayne N6KR On Apr 13, 2005, at 3:33 AM, Julian, G4ILO wrote: I was wondering much the same a couple of days ago, when trying to figure out how Elecraft can offer built T1s for only 24 bucks more than the price of the kit --- 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] Potential Elecraft Kit
This looks like a nice little analyzer. I have used the AD8302 and it does a decent job within its 60 dB range limitation, which should be enough for most measurements. Since it has its own oscillator, I assume the levels are permanently set to maximize dynamic range. Note that it is a one port device, however, so it can't measure DUT input vs. output parameters such as gain and phase and other parameters between input and output. Larry N8LP Stewart Baker wrote: On Wed, 13 Apr 2005 09:28:56 -0400, Larry Phipps wrote: They may get another one going, but it was a lot of work and I wouldn't count on it. There's also a VNA project underway in Italy, but I can't recall the details. The Italian VNA project is at http://www.qsl.net/iw3hev/Antenna%20Analyzer%201.8-60%20MHz-Eng.htm After much internal debate, mainly because of available time, I have placed an order for a built one (shame!). I will let the group know how it performs when I get it. 73 Stewart G3RXQ . ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
Well, it seems that Earl has chosen to demonstrate his ignorance of accepted Internet protocol by not only spamming (itself a felony crime in the US), but by forwarding private correspondence to a public forum. I have been careful to respond to communications regarding this subject only via email and not the reflector, but if Earl wants a public discussion of the inappropriateness of his activity, so be it. Yes, Earl, you are exhibiting the characteristics of a clueless newbie, Internet jargon for someone who doesn't understand the history and accepted practices of the Internet. My own experience with the Internet predates commercial use of any sort (Merit/NSFNet) - a time when you lost your feed if you tried to use it for business, which no one did because it was against the rules and strongly enforced by peer pressure. The spam you sent was not informational, it was commercial. More useful information is easily had by doing a simple Google search, as someone already pointed out. There's no difference between you putting it may interest some of you on the front of a spam and the millions of spams sent out daily which start with Hey, I thought you might like this... or something similar. Now you come along and try to rationalize criminal activity and theft of service (spam), unremorsefully. You've encouraged others to respond to spam, further propagating the problem. It is actions and lack of understanding such as yours which have made spam the significant problem it is today. Without an audience, spam wouldn't be profitable, and therefore wouldn't exist. By forwarding spam to a larger audience, you are both the problem and the cause, yet you continue to defend your action. This same can be said in some ways about ham radio - in the past the self-policing nature made it easy for the FCC to justify the (minimal) regulation necessary to support and maintain. More recently, that self-policing has begun to break down, and now we've got license testing fraud and Hollingsworth because hams look the other way instead of applying peer pressure when improper behavior is observed. Along that trendline, we can only expect more regulation. You're not simply ignoring improper Internet behavior, you're actively encouraging it. Yes, Earl, you've demonstrated that you are a clueless newbie with regard to the Internet, at best. If you actually knew what you were doing when you spamed the list, that just makes it worse and you do deserve censure. With your history, you should know better. At 10:41 AM 4/13/2005, Earl W Cunningham wrote... Mike S wrote: It's exactly because of clueless newbies like you that there is a spam problem in the first place. (The rest of his e-mail censored because of foul language) == I have NEVER bought anything nor visited a Web site advertised by a spammer. This clueless newbie has been into computer hardware and software professionally since 1966. (Retired 1994.) Bought (built) my first PC in 1979. Authored much ham radio software since then, much of it used world-wide today. Member of the Elecraft e-mail list since April 2002 -- others before that. Celebrating my 51st year as a ham (first licensed as W8DGP in 1955 - Extra Class since 1963). Newbie??? 73, de Earl, K6SE (not a vanity callsign) K2/100 #2622 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] about this K2 mojo
Pardon my ignorance fellas, but what is a mojo? Ron Wb1hga CW is an esoteric experience ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
Just do a Google search on toroid winding. You don't have to look far to turn up Elecraft list posts and postings from lists.contesting.com where the subject has been mentioned, complete with full email addresses. 73, -- Julian, G4ILO G4ILO's Shack: http://www.tech-pro.net/g4ilo Earl W Cunningham [EMAIL PROTECTED] wrote: The immediate impression I had when I received the winder e-mail was that the spammer somehow knew I was an Elecrafter and that other Elecrafters would possibly receive the same e-mail (apparently they have). If that is true, I wonder how he got my (or yours and others) e-mail address because I have never searched the Web for a toroid winding machine nor have I ever visited any spammer's Web site. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
So I guess if Earl had said I ran across this torrid winding machine that might be of interest to Elecrafters, and had made no mention of spam, it would have been okay? Or perhaps he could have inserted a link to the appropriate site. We get links to supposedly reputable profit oriented organizations on the reflector all the time: could any of these be possible spam? Hum? I found the torid winding machine interesting BUT I didn't buy one! ;) Doug W6JD - Original Message - From: Mike S [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, April 13, 2005 8:30 AM Subject: Re: [Elecraft] Fw: Need winding machine? Well, it seems that Earl has chosen to demonstrate his ignorance of accepted Internet protocol by not only spamming (itself a felony crime in the US), but by forwarding private correspondence to a public forum. I have been careful to respond to communications regarding this subject only via email and not the reflector, but if Earl wants a public discussion of the inappropriateness of his activity, so be it. The spam you sent was not informational, it was commercial. More useful information is easily had by doing a simple Google search, as someone already pointed out. There's no difference between you putting it may interest some of you on the front of a spam and the millions of spams sent out daily which start with Hey, I thought you might like this... or something similar. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
On Wed, 13 Apr 2005, Julian, G4ILO wrote: Just do a Google search on toroid winding. You don't have to look far to turn up Elecraft list posts and postings from lists.contesting.com where the subject has been mentioned, complete with full email addresses. But to get back to some basicsDo you think it's appropriate to forward a spam message to a mailing list? Thom www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: RE: [Elecraft] about this K2 mojo
Well, going to the Merriam-Webster Online Dictionary: Main Entry: mo?jo Pronunciation: 'mO-()jO Function: noun Inflected Form(s): plural mojoes or mojos Etymology: probably of African origin; akin to Fulani moco'o medicine man : a magic spell, hex, or charm; broadly : magical power Hey, that sounds about right! Mark, NK8Q From: ron [EMAIL PROTECTED] Date: Wed Apr 13 11:38:41 CDT 2005 To: [EMAIL PROTECTED], 'Chris' [EMAIL PROTECTED], elecraft@mailman.qth.net Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] about this K2 mojo Pardon my ignorance fellas, but what is a mojo? Ron Wb1hga CW is an esoteric experience ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
On Wed, 13 Apr 2005, Douglas Westover wrote: So I guess if Earl had said I ran across this torrid winding machine that might be of interest to Elecrafters, and had made no mention of spam, it would have been okay? Would that involve forwarding the spam message to the list? Or perhaps he could have inserted a link to the appropriate site. Sureand perhaps instead of telling him he spammed the list with a spam message, some folks might point out to him that he referenced a site that uses Spam to market its products. We get links to supposedly reputable profit oriented organizations on the reflector all the time: could any of these be possible spam? Hum? If those organizations used Spam to market their products/services than one could advance the premise that be mentioning them, one is condoning their use of Spam. I beleive there are some folks who simply refuse to purchase goods/services from organizations that use Spam to market those items. Thom ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: Fw: Need winding machine? END OF THREAD.
On Wed, 13 Apr 2005, Julian, G4ILO wrote: Do you think it's appropriate to forward a spam message to a mailing list? Clearly, spam should not be forwarded. But just as clearly, Earl didn't know this was spam. He thought it was legitimate and that he was potentially doing someone on the list a favor. We've all received messages that we thought were interesting, but later turned out to be urban myths that have circulated for years, or were outright spam. Let's avoid criticism of those who unintentionally forward such messages. We all have things to learn about the internet. In any case, it's time to end this thread. 73, Wayne N6KR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] about this K2 mojo
Ron, WB1HGA asked: Pardon my ignorance fellas, but what is a mojo? --- That question comes up often, Ron. A mojo is an object containing magic. In native American lore, it's often a small leather bag worn on a leather thong around the neck in which particular items with spiritual powers are placed: a talisman. Somewhere in the past someone decided that the Elecraft rigs were Ham radio mojos, Hi! 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] KX1 operation from Bust, Colorado
The KX1 Pedestrian Mobile operation at Bust, Colorado, is currently in the April 2005 ARS Sojourner Magazine. http://www.arsqrp.com/ars/pages/back_issues/2005_text/0405_text/W0RW.html Bust is a great place to operate from ! Paul w0rw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
That's an impossible question to answer, because it depends how you define spam. To some, it's any unsolicited email. To others, it's any email they didn't ask to receive and aren't interested in. The fact that a number of people did find the email interesting seems to me to vindicate Earl's decision to forward it. The discussion about whether or not he should have done so is far more off-topic and a bigger waste of reflector bandwidth. Unsolicited mail is a long established marketing method and my doormat is a regular recipient of the paper-based version of it. Julian, G4ILO Thom R Lacosta [EMAIL PROTECTED] wrote: But to get back to some basicsDo you think it's appropriate to forward a spam message to a mailing list? Thom ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Moving sale: K1, K2, options, 706MkIIg, ... all near-new
We're moving! I'm selling off the bulky things. I'm keeping only the tiny KX1. All items are about 2 months old, if not less, and in near-new condition, if not mint. All prices include shipping and insurance! For Elecraft items I've basically taken the new price and donated the time/effort/cost of construction, and included shipping. Package deals welcome. Price Item 600 K2 #4778, assembled/tested 160 KAT2 tuner, assembled/tested 40 KNB2 noise blanker, assembled/tested 90 SSB option, assembled/tested 80 KAF2 audio filter clock, assembled/tested 58 MH2 hand microphone (Elecraft/Heil) 350 K1-4 #1994, assembled/tested, for 40/30/20/17 meters 100 KAT1 tuner, assembled/tested 60 KFL1-2 board, unassembled/new, for 80/40 meters 35 KNB1 noise blanker, assembled/tested 44 KBT1 battery option, unassembled/new 850 Icom 706 MkIIG (HF/6/2/440) with separation kit, accy's 100 500 Hz CW filter for 706 MkIIG 25 Radio Shack power supply, 13.8 VDC, 3 amps. 10 MFJ ClearTone speaker I'm the original owner of everything. It's all between 1 and 2 months old. Everything is basically in brand new condition. Email me off list. --Andrew, NV1B ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Moving sale: K1, K2, options, 706MkIIg, ... all near-new
(added the ic-2200) We're moving! I'm selling off the bulky things. I'm keeping only the tiny KX1. All items are about 2 months old, if not less, and in near-new condition, if not mint. All prices include shipping and insurance! For Elecraft items I've basically taken the new price and donated the time/effort/cost of construction, and included shipping. Package deals welcome. Price Item 600 K2 #4778, assembled/tested 160 KAT2 tuner, assembled/tested 40 KNB2 noise blanker, assembled/tested 90 SSB option, assembled/tested 80 KAF2 audio filter clock, assembled/tested 58 MH2 hand microphone (Elecraft/Heil) 350 K1-4 #1994, assembled/tested, for 40/30/20/17 meters 100 KAT1 tuner, assembled/tested 60 KFL1-2 board, unassembled/new, for 80/40 meters 35 KNB1 noise blanker, assembled/tested 44 KBT1 battery option, unassembled/new 850 Icom 706 MkIIG (HF/6/2/440) with separation kit, accy's 100 500 Hz CW filter for 706 MkIIG 200 Icom IC-2200 2m 25 Radio Shack power supply, 13.8 VDC, 3 amps. 10 MFJ ClearTone speaker I'm the original owner of everything. It's all between 1 and 2 months old. Everything is basically in brand new condition. Email me off list. --Andrew, NV1B ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
Thanks Stewart, I missed that... the website was exceedingly slow here and I got tired of waiting for the manual to download. That makes it definitely worth a look, especially at that price. I love the N2PK, but it's a bit slow and needs better software... but for detailed measurements it's awesome. Larry N8LP Stewart Baker wrote: On Wed, 13 Apr 2005 12:06:59 -0400, Larry Phipps wrote: Note that it is a one port device, however, so it can't measure DUT input vs. output parameters such as gain and phase and other parameters between input and output. There is a mod that permits 2 port i.e transmission measurements to be made. 73 Stewart G3RXQ . ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
Julian, G4ILO wrote: If Elecraft is going to get into making kits for more sophisticated test equipment, I'd like to see an antenna analyzer. Here is a nice one if you are looking for a kit. 73, Johan on4aeb http://www.amqrp.org/kits/kits.html ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] about this K2 mojo
Ron: Cool! I'd always wondered where the idea came from. Steve AA4AK At 10:25 AM 4/13/2005 -0700, you wrote: Ron, WB1HGA asked: Pardon my ignorance fellas, but what is a mojo? --- That question comes up often, Ron. A mojo is an object containing magic. In native American lore, it's often a small leather bag worn on a leather thong around the neck in which particular items with spiritual powers are placed: a talisman. Somewhere in the past someone decided that the Elecraft rigs were Ham radio mojos, Hi! 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] about this K2 mojo
Fine business Ron, I liked your interpretation more so. It has a mojo feel to it! (heh heh) Ron, wb1hga CW, an esoteric experience ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Dishwasher QRN to my K2 sn 1031
I bought a Frigidaire dishwasher made by Elecvtrolux in January of 2005. It is a model gld2450rds0. I did not realize it at first but it is the source of my high QRN. I used my IC-746PRO to make the following observations because it will pick up AM but the interference is just as bad on my K2 sn 1031. The background noise was S5 on 20 meters with the AM mode, 9 kHz filter and a dead frequency of 13990 selected. All cycles of the dishwasher except the wash part have a noise level of S6 to S7 which is still something I could live with. Every time the actual washing starts the noise jumps to 10 DB over S9 and stays there until it shuts down to pump out, add water or dry. I looked at the output of my IC746-PRO with the water fall of Digipan and see a consistent pattern from about 300 Hz to 1500 Hz but while there may be more 120 Hz spaced peaks in places on the spectrum there are also other spacing. The peaks do not move as I change the VFO on the ICOM so it is a broadband noise. I have a portable radio and find noise all the way from 2 mHz to 20 mHz. The noise seems to get into the wiring and plumbing of the house and drops off rapidly if I take the portable radio outside. If I use Digipan with the SSB mode then I do not see the peaks. I just see white noise across the entire receiver spectrum. Now I am hoping someone on this list may have some information about curing the noise from this dishwasher. Can some sort of beads be added around the power line or is there a filter that can be added. The dishwasher draws 9 amps so any filter would have to be able to handle the high current. My K2 and I have been having trouble with this noise since January of 2005. The noise is so much stronger than almost every signial on the band that the band sound as though there is no activity. The reason we did not figure it out sooner is that just starting the dishwasher does not start the noise. It doesn't happen except when it is in the actual wash parts of the cycle. Thank you for any help. Ken Christiansen W0CZ [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] about this K2 mojo
At 10:25 AM 4/13/2005 -0700, you wrote: Ron, WB1HGA asked: Pardon my ignorance fellas, but what is a mojo? --- That question comes up often, Ron. A mojo is an object containing magic. In native American lore, it's often a small leather bag worn on a leather thong around the neck in which particular items with spiritual powers are placed: a talisman. Somewhere in the past someone decided that the Elecraft rigs were Ham radio mojos, Hi! Ron AC7AC I think that the mojo here, by extension, isn't necessarily the object, one that is ...thought to promote supernatural action..., but the magic it contains. One of the current meanings is, Personal magnetism; charm. The Urban Dictionary gives us: The word originally means a charm or a spell. But now it's more commonly said meaning sex appeal or talent. and Elecraft rigs have plenty of both, imho. LL/K3ESE __ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Dishwasher QRN to my K2 sn 1031
On Wed, 13 Apr 2005 14:29:46 -0500, Kenneth A. Christiansen wrote: is a broadband noise. I have a portable radio and find noise all the way from 2 mHz to 20 mHz. Some thoughts. First, this issue has been discussed on the RFI list, and there are some RFI specialists who hang out there. A study of their archive is in order. Second, there are two basic ways the RF can be getting out of the washer -- radiated directly from an unshielded cabinet, and conducted on the power wiring. I suspect the power wiring. The first solution I would try with that is to form a common mode low pass filter on the power line. The easiest way to do that is wind as many turns of the power cord as you can around a 2.4 #43 toroid (commonly called an FT240-43), AND add bypass capacitors (around 0.05uF) from both sides of the AC line to the ground, and make sure the chassis of the machine is tied to this same ground. So, coming out of the machine, there's the choke, followed by caps to ground. That is, the caps are on the LINE side of the choke. AND there's a bond that does NOT go through the choke between the washer and the equipment ground at the outlet. This bond should be as short as possible, because it can be carrying some of the trash, and that trash can radiate. As to the number of turns: you probably can't put too many on it. I would aim for at least 7 turns, and try for a few more. What happens when you do this is that the ferrite choke develops a broad peak in its impedance that is actually a resonance between the inductance and the stray capacitance, and with the resistance of both the wire and the ferrite thrown in. With more turns, that resonance will move down in frequency. I've been working with Mike, W4EF, on a research project on these toroidal chokes, and will publish the work this fall. Mike's data shows that anything from about 7 to about 10 turns is ideal for 3.5 - 20 MHz, and the greater number of turns will help things on 80 and 160. If this solution doesn't make a dent, the trash is getting radiated. In that case, I would call the mfr and tell them to fix it. Jim Brown K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] ID plates and acrylic covers for K2,K1 and KX1
Hello to all... I have been producing engraved acrylic covers for the K2 and K1, and engraved ID plates for K2, K1 and KX1. Eric has graciously added my web site to the list at the bottom of the Elecraft home page. I believe these plates give a 'finished' look your your Elecraft rig. They also assist you to tell your rig apart from others (they all look alike on the outside!) My web page is www.arkayengravers.com/elecraft I also have links to my SP2 speaker project (thanks to VE6DRW), and some un-modules on pc boards I have constructed. However, if you have inquiries, please email directly to: [EMAIL PROTECTED] 73 Ken Kaplan WB2ART Arkay Engravers, Inc. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Dishwasher QRN to my K2 sn 1031
Jim makes excellent suggestions. If you have a battery powered radio, you can tell if the RFI is arriving through the power line. One thing that I'd check before going too crazy chasing possibilities is to be sure the metal frame and cabinet is grounded. It should be, but sometimes the ground has to be attached during installation and it gets left off. A quick check between a known grounded outlet and the case with an ohmmeter should show a ohm or two at most. 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] K2 Audio Loss Due to ESD
I have come up with what I think is a better mod for grounding the mike connector (J2) on the Front Panel board. The two standoffs were removed on each side of the mike connector. The two lockwashers on each standoff were removed. Two small expansion springs (about 1/2 X 3/16 before expansion with the last loop on each side lying flat to accept screw) were purchased at the hardware store. I placed the two springs on one screw securing them with the standoff, routed them on each side of J2, and joined them on the other standoff. These standoffs are at ground potential. I did not replace the two lockwashers on each standoff. This mod seems to make a good ground. Hopefully, this along with good grounding and well sanded panel connections will help eliminate loss of audio due to ESD zaps to K2/100s with the KDSP2 installed. Roy Morris W4WFB No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.7 - Release Date: 4/12/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Audio Loss Due to ESD
On Wed, 13 Apr 2005 16:56:50 -0400, Roy Morris wrote: I have come up with what I think is a better mod for grounding the mike connector The ONLY good place to connect the shield of the mic cable is to the chassis of the K2. I have modified one of my K2's to do this, and will do the other one (newly acquired) soon. When you connect the shield to the circuit board and from there go to the chassis, you set up what we in the pro audio world know as a pin 1 problem. You can find a tutorial on this as part of AES48, an international standard that I helped write. At www.aes.org, go to Standards, then Standards in print, and then select AES48. Anyone can download a pdf of the standard at no charge. If you are not an AES (Audio Engineering Society) member, you won't be able to print the pdf, but you can read it on your screen. You can buy a printable copy for $25. BTW, the chassis is also the right place to connect the signal return of RS232 connections, NOT pin 5. I've solved some serious RFI problems by correcting this. This is a tutorial on the topic. http://audiosystemsgroup.com/FerritesRFI-HamPPT.pdf There are other tutorials on the website that you may find helpful. http://audiosystemsgroup.com/publish.htm Jim Brown K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] last try..blank display
I'm at my wit's end trying to figure out why there is no words appearing on the K2 on the phase 1 test. I've tried every suggestion short of lifting the display off or replacing all the chips. This kit was given to me partially complete and I retraced it from step one. I've been building these little kits for simple rigs lately and have been eyeing the k1, but I'm wary of another failer. I'm only out $12.00 on this kit. Those chips add up fast though and elecraft charges $100 bucks an hour to look at it. It sure is a pretty rig. Wish I was smart enough to figure it out. This is my 3rd post on this problem over the last 6 months. thanks n5vwn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Receiver problem
Hi all, I finished the second stage of assembling the K2, (RF part 1) and started the allign and test procedures. I saw the S-meter stuck at the last led (nr 10) during receive and no audio on the headphones and with the RF-Gain full CW. (It actually doesn't make any difference if the RF-Gain is full CW or CCW in my particular case).. I ignored this and started the alignement. All went fine but ending up at the 40 mtr RX test, no wonder, nothing to hear!. The strange effect I noticed is when entering for instance the CAL mode XFIL the audio noise comes on and the S-meter goes down. But when leaving the calibration mode, the S meter goes high and audio fades away, just like the RF gain is turned back on (which corresponds with each other). I tried to calibrate the AGC Threshold and S-meter again but as I expected, this is not a solution. It looks like an RF -gain problem, which I didn't have when I had my first alignment. I checked the boards for short circuits and cold solder joints but didn't see anything (I might oversee something). Unfortunately I have no signal generator available at the moment. Who has got an idea ? Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 #4654 works fine
since one hour now! One little problem: on 160 and 80 I hear a loud click when switching from TX to RX, on the rest of the bands it is not so loud, but it is stille there. Probably there is a capacitor under one of the bandpass filter relays not completely soldered. 73 's Steef ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 #4654 works fine
PA2A Steef wrote: since one hour now! One little problem: on 160 and 80 I hear a loud click when switching from TX to RX, on the rest of the bands it is not so loud, but it is stille there. Probably there is a capacitor under one of the bandpass filter relays not completely soldered. If you have both a KPA100 and KDSP2, see: http://www.ac6rm.net/mailarchive/html/elecraft-list/2005-01/msg00997.html This problem requires both of the above accessories to be active (you can test it by turning down the power to 10 watts or didabling the DSP) and is observed more strongly 0n 160 and 80. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Receiver problem
Evert, I don't have any firm answers yet, but we can slowly get to the bottom of this with some checks to see what is good and what might be bad. First thing to check is the resistance from control board P1 to ground - this is the RF Gain control line, and it should be close to zero ohms with the RF Gain full Clockwise, and should increase in resistance as you move the control. This checks the path from the Control board to the RF Gain control and all the connectors involved. If that is good, move on. You said that you do find some audio when in CAL FIL - so let's see what the AGC voltage is - monitor the voltage at Control Board P1 pin 5 with the menu set to CAL FIL and with the receiver set to normal. You should have the same voltage in both cases. Let me know what voltage you measure. Next move your finger down onto T7 while listening in the headphones (all gains on full CW) - you should hear an increase in sound (your body is picking up some BFO signal and you are coupling it back into the input of the IF amp). Try it in the menu CAL FIL and normal receive and tell me if there is any difference. We can go from there after you report the findings of those tests. Perhaps better to do this off-reflector, and then report the findings to the reflector after the problem is cured. 73, Don W3FPR I finished the second stage of assembling the K2, (RF part 1) and started the allign and test procedures. I saw the S-meter stuck at the last led (nr 10) during receive and no audio on the headphones and with the RF-Gain full CW. (It actually doesn't make any difference if the RF-Gain is full CW or CCW in my particular case).. I ignored this and started the alignement. All went fine but ending up at the 40 mtr RX test, no wonder, nothing to hear!. The strange effect I noticed is when entering for instance the CAL mode XFIL the audio noise comes on and the S-meter goes down. But when leaving the calibration mode, the S meter goes high and audio fades away, just like the RF gain is turned back on (which corresponds with each other). I tried to calibrate the AGC Threshold and S-meter again but as I expected, this is not a solution. It looks like an RF -gain problem, which I didn't have when I had my first alignment. I checked the boards for short circuits and cold solder joints but didn't see anything (I might oversee something). Unfortunately I have no signal generator available at the moment. Who has got an idea ? Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] newbie?
I think I want Earl on my side of any dark alley I accidentally wander into... I also appreciate the grace and style with which he expresses himself while maintaining his gentlemanliness. Sounds like the kind of fella that would step back and let the opponent pick up his foil... Hey Earl, are you related to Errol Flynn? Mike Sexsmith W7MSX K2# 4819, KX1# 1034 Licensed two years, Extra Class for one, proud to be a newbie... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Fw: Need winding machine?
G3VVT suggested to K6SE: Interestingly I received the same mail here. I suspect that as we were both in this group when the discussion about toroid winders took place over a year ago and many of us were looking at various sites to do with these machines, this is probably targeted advertising rather than blind spam:-) I would not be surprised to find many of the regulars targeted the same way if they don't use a spam trap whilst on this list. (This is the only list I don't use a spam trap on and I intend to keep it that way:-) Not quite sure what Trev means by a spam trap, but folks just up the road from here are pretty sharp nowadays this company in Namhoi is probably not any different. I too received a few unsolicited e-mails from Kwang Yat in the pursuit of socialism with Chinese characteristics, it comes as no surprise. The winding of torroids is often discussed on this list given some of the classic spam I receive, there is a lot of creativity going into finding addresses to send stuff to. Partially serious, partially humorous somewhat relevant - cheers, Earl. 73, VR2BrettGraham ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 4875 growing
My new baby, K2 nr 4875 is growing. Control panel completed; resistance checks Ok. Youppi! Yves Dussault-VE2ATD Laval, QC, Canada ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Fw: Need spam machine?
Sorry Trev, but unsolicited email offering to sell something you've never heard of from someone you've never heard of is SPAM. Whether you consider targeted spam legitimate as opposed to what you call blind SPAM, is irrelevant. You stop SPAM by not buying anything from an unsolicited emailer. PERIOD. I get that exact same email from Jack Feng at least once a week. I even stuck winding machine in my filter to immediately send any email with that term into the delete bucket. With all due respect Trev, as long as folks like you try to rationalize SPAM, the spammers will keep doing it. Don't be part of the problem, be part of the solution. 73 =paul= W8KC ObELECRAFT - I love my KX1. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Trevor Day Sent: Wednesday, April 13, 2005 4:22 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Fw: Need winding machine? In message [EMAIL PROTECTED], Earl W Cunningham [EMAIL PROTECTED] writes I just received the following e-mail about a toroid winding machine. Perhaps it may interest some of you Elecrafters. It was spam, so take it for what it's worth. 73, de Earl, K6SE Hi Earl, Interestingly I received the same mail here. I suspect that as we were both in this group when the discussion about toroid winders took place over a year ago and many of us were looking at various sites to do with these machines, this is probably targeted advertising rather than blind spam:-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] many thoughts, somewhat at random
N5VWN wrote: I'm at my wit's end trying to figure out why there is no words appearing on the K2 on the phase 1 test. I've felt frustrated many times while building, too, and I've been at it over 30 years. You are not alone. But you've buit a Rockmite and a Pixie. The K2 is WAAAY easier to make work than either of those rigs. My comments, for what they are worth: 1. if I got a K2 for $12, in ANY condition, I'd be dancing an Irish jig! you're starting out WAY ahead of the game ... 2. ... on the other hand, one of the things I have learned to probably not try again is building a kit somebody else started! ;) probably including myself, at an earlier age. 3. Stockton alone has 7 times the number of hams in it that my ENTIRE rural NC county does, yet there are FOUR other K2 rigs/owners here! In Stockton, I'd try to find a local, experienced Elmer to come by and help in person. There's NOTHING like learning from an expert, and NO replacement for having a helper there, IN PERSON. Surely, there MUST be at least ONE local, capable, and willing Elmer, the odds are very much in favor of it. Stockton also has at least one well-known ham club, a great way to find the right person. 4. Hardly anyone ever says this, but, it should be said ... nobody should try to build or fix an electronic *anything* without having an ammeter in line. The current drawn (or, not drawn) by a device-under-test is THE #1 most telling thing about what's wrong with a recalcitrant circuit. If you don't have a handy ammeter, run, do not walk, to go get one, or make one by using a 1 ohm resistor in series with your device and then measure the voltage drop across it. 1/10th volt equals 100 mA and so forth, that is why Ohm's Law is on the test! A good digital voltmeter can be bought at Sears (readily available) and while it probably has a milliammeter in it, it's actually easier to put the shunt in series and use the voltmeter to go back and forth from the shunt to the circuit tests. 5. Another ageless truism is that there's no more useful a piece of test gear than an oscilloscope. Of course, one would need to be taught to use one, and you'd also have to have one ... neither are hard at all ... and this one piece of gear could make the difference between an enjoyable hobby and a frustrating discouragement. Consider making the time investment (I would have said money too but these days a good used 'scope is so cheap as to be laughable). 6. A current-limited bench supply, preferably with variable voltage and adjustable current limiting, can be your best friend. There are some mighty nice used ones around I've seen at hamfests for $10 or $15, and even a decent new one can cost as little at $45. I just got three of some little Chinese knockoff mini bench supply from Circuit Specialists, for work. They are very inexpensive and reliable. No, they are no threat to Lambda or HP, but, hey ... 7. The reason I've suggested these extra goodies is that they make things go faster and smoother. Because I have the experience, I can probably make do without any of them; indeed, I *have* made do without ... that is HOW I got the experience in the 1st place! You don't absolutely need this stuff, but, based on your QRZ! profile, it looks like you're a budding builder. Take it from me, don't do things the hard way like I did (soldering with hot nails, using strips of aluminum foil for wire, etc., I've done it all), get some decent shop equipment and never look back. 8. Please post some specific results of your tests so far. For example, I turned it on and it doesn't work is not nearly as useful as I tested the voltage at U3, pin 4 and found it to be x.y and during the test the set is drawing about 475 mA and so forth, to help others help you out. 9. This electronic medium is not at all a good way to troubleshoot electronic equipment, but it will do in a pinch, and you can make it much easier by providing specifics, in detail. Don't be afraid to write down every detail because you are the eyes and fingers for all the people who want to help, and there are a LOT of us. 10. Lastly, there are almost 5 thousand K2 rigs now, some six years old, and still going strong. They work, and work well. Let's get YOURS on the air SOON! gl 73 Steve KZ1X/4 K2 #0771 Go Tar Heels __ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: about this K2 mojo
I'll echo what Chris wrote. I just received my K2 on Monday (4/11/05), purchased from the estate of George W5YR (SK). I was tuning through 17m at 2357z on 4/12/05. Heard a strong 59 station running a pileup on 18.135. K9SG/PJ2. What the heck, I'm running 10w into a vertical. Let me give it a try. Whoa!! He's answering me! And we exchange 5x9 !!! 15 minutes later (0112z, 4/13/05) I'm trolling through 20m. A strong S9 station at 14.202 . A huge pileup. Well, my 10w is fired off again. What? he's calling for the Papa India Papa station to try again. This is getting really interesting. So I go back, N5PIP/QRP. K9LZJ/PJ2 replies, You're 5x3, try lower power. So now I'm REALLY sitting up straight, I lower to 5 watts, get another 5x3. Lower again to 1 watt. Still 5x3. Lower to 1/2 watt, then 1/10th watt. Still getting 5x3. Now we're BOTH amazed. He wants to know what rig I'm running. ELECRAFT K2, of course, I proudly reply. He replies something to the effect that he's going to have to seriously look into Elecraft a bit further. Now I want to know, do Wayne Eric pay commissions? To paraphrase an older popular commercial, When Elecraft speaks, people listen. 73 de Stirling, N5PIP K2 #0489 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Calibration Interval
My K2 #4198 is running just fine and I am wondering how often to check the Calibration of my K2 to help make sure it is running at peak performance Say every 6 months or yearly? K9NX Jonesy K2 #4198 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Calibration Interval
Jonesy,K9NX wrote: My K2 #4198 is running just fine and I am wondering how often to check the Calibration of my K2 to help make sure it is running at peak performance Say every 6 months or yearly? --- Just a guess, but I'd say you can ignore it for a couple of years at least. Even then, 'recalibration' will catch any tuned circuits drifting, but isn't really a test to see if there's performance degradation from other reasons. I have a habit of recalibrating or doing other repairs only when I see something wrong. I see something wrong when some critical values change. I log the key data about a new rig so I can look back from time to time if I'm suspicious that something's amiss or if I'm simply bored and want to tinker G. For transmit, I have a record of the maximum power out on each band into a good dummy load. I have a K2/100 so I have the numbers with the amp on and with it off. For receive, I use the XG1 to note the S-meter response it provides on each band. That's an excellent way to check the receiver sensitivity. Do it with the preamp on and off to confirm normal preamp operation. A note of the current draw from the power supply reported key down at full power and key up in receive gives me a check of the current drain. Spectrogram allows capturing the screen shots of the filter responses which I have. If I ever suspect something going strange in the BFO frequencies or in the filter itself, a quick comparison with the saved spectrogram plot will confirm or refute any change. I also log the settings in CAL FIL and other menu parameters I've set up in case I ever change anything, or have a problem that requires resetting the values, so I can quickly reset things to normal if I've been tinkering and forgot where I started from. This is the result of a lifetime habit, since I've always operated equipment I built myself, a lot of it of my own design. Once in a while what I think is a receiver or transmitter turns into a smoke generator. Having a log of critical data (and the schematic where I can find it) helps me figure out how to turn off the smoke. I usually keep a binder with data on each rig. My K2 is S/N 1289 built in May of 2000. My notes and data on changes, mods, and accessories that I've added now fills a 2 inch binder, and that does not include the original manual! But any time I open it up and ask, What is that for? I can check the notes and find out. For me, every piece of equipment is a work in progress. It's only finished when I retire it completely. 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] Re: about this K2 mojo
First of all, I love K2 and built a number of them. However, I have similar experience for my other rigs. Sometimes, what happened will depend on band conditions. 72/73 Johnny Siu VR2XMC builder of s/n 1146, 3837, 4165, 4255, 4597 - Original Message - From: n5pip [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, April 14, 2005 12:01 PM Subject: [Elecraft] Re: about this K2 mojo I'll echo what Chris wrote. I just received my K2 on Monday (4/11/05), purchased from the estate of George W5YR (SK). I was tuning through 17m at 2357z on 4/12/05. Heard a strong 59 station running a pileup on 18.135. K9SG/PJ2. What the heck, I'm running 10w into a vertical. Let me give it a try. Whoa!! He's answering me! And we exchange 5x9 !!! 15 minutes later (0112z, 4/13/05) I'm trolling through 20m. A strong S9 station at 14.202 . A huge pileup. Well, my 10w is fired off again. What? he's calling for the Papa India Papa station to try again. This is getting really interesting. So I go back, N5PIP/QRP. K9LZJ/PJ2 replies, You're 5x3, try lower power. So now I'm REALLY sitting up straight, I lower to 5 watts, get another 5x3. Lower again to 1 watt. Still 5x3. Lower to 1/2 watt, then 1/10th watt. Still getting 5x3. Now we're BOTH amazed. He wants to know what rig I'm running. ELECRAFT K2, of course, I proudly reply. He replies something to the effect that he's going to have to seriously look into Elecraft a bit further. Now I want to know, do Wayne Eric pay commissions? To paraphrase an older popular commercial, When Elecraft speaks, people listen. 73 de Stirling, N5PIP K2 #0489 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Potential Elecraft Kit
One of the problems with designing and selling kits is the production volume. Will enough of the kits be sold to justify the cost of developing the product. I don't know if there is enough demand in amateur radio to justify the development cost of a spectrum analyzer. Let me state the design specifications of a hypothetical high-performance HF-VHF spectrum analyzer that could be developed as a kit that would retail for $500. To keep the cost down, the analyzer would use a PC for control and display; the control of the RF portion would be done through a USB interface. The parts to do this design are available today - no great invention is required. Specifications Frequency coverage: 100 kHz to 160 MHz Resolution bandwidth: 100 kHz to 1 Hz Video bandwidth: 10 kHz to 1 Hz Dynamic range: 80 dB Power measurement error: 1 dB Maximum sweep speed: 10 MHz/second Maximum input power: +20 dBm Input noise figure: 20 dB Windows software included for control, display, printing and saving data; user supplies the PC. Option for $150 Tracking generator to make instrument into scalar network analyzer It would take about a person-year of effort to design the hardware, write the software, and create manuals. However, I think you would only sell about a hundred units per year. That makes the development cost too high to justify the effort. -John KI6WX Gang, One of the insturments I always wanted for home use was a spectrum analyzer. Nice to have sound card analyzers with software and all, but a real rf analyzer in a small, functional package would be so great. With some careful trade off decisions it might even be affordable! The display is a big headache if you don't have a good Oscope handy but a creative designer [or two] might be able to do the job. I suppose it would not have the broad appeal of a K1, 2 or even a very compact antenna tuner, but it might appeal to a few hundred hams and others who do bench work. Wayne K9NE Yes, I know about the projects already on the web, but how many of you have actually rounded up all the stuff to build that one? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: about this K2 mojo
Stirling, N5PIP wrote: I just received my K2 on Monday (4/11/05), purchased from the estate of George W5YR (SK). It's good to know that the Yellow Rose of Texas' rig is on the air and providing a lot of enjoyment! George was a special Ham and a FB QRP operator. It's always exciting when a good setup, favorable propagation and someone on the other end who has a good receiver and knows how to use it makes an seemingly impossible contact very possible indeed! It's the sort of excitement that never wears off. 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] OT:The NJQRP Manhattan Homebrewing Starter Kit
Guy's... Apologies for the Off Topic request... I was just surfin' around...on the net a few moments ago and found myself on the American QRP Club website ...lookin' at all the past and present kits they have/had available... After the hopefully not so far away,..completion of my K2..I am hopein (...late as it always is in my case) to have a goat the Manhatten Style Construction thing.. I unfortunatley missed the run of the kits that were done to get folks startedon this way of construction dunno what I'll do there for parts etc ...will need to cross that bridge when I come to it... In the meantime...I was wondering if anyone on the list ..possibly has a copy either in electronic format...or one that theywould'nt mind scanning for me of the Manhatten-Style Homebrewing Guide that is talked about at the link below...?? http://www.njqrp.org/starterkit/index.html It seems to be quite comprehensive (says its 20 pages or so of info)...so as a starter point for myself ...I would'nt mind having a look at this... and perhaps later will re-post for any of the starter kits that folks may have lying around that they would like to part with..or cant see themselves gettin around to actually using in the near future... For the meantime...has anyone got any way of letting me have a copy of the guide (Manual thingy..!) on the website linke above..? Thanks guys...what a great bunch of boys... P.S. Hope I get some of this K2 Mojo when Im finished my kit that everyone is talking about..! Andy [EMAIL PROTECTED] ...I Just See It.!.. John A. Ross (RSD Communications circa 2004) A.R.S. GM0NWI QRP ..It is vain to do with more A Dis-Orientated Kiwi... K2 S/n 01432 Soon To Be On-Airwhat can be done with less.. In The Northern Hemisphere... GQRP No.9576 QRP-L No.2165 ARCI No.10561 Central Florida DX Association (CFDXA) Alaska QRP Club No.190 Flying Pigs QRP Club No. FP#-1061 ICQ No.31899603 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 #4877
K2 #4877 trying to come to life! Passing the Alignment and Test,Part 2 This is great,I need to get more sleep thought,Said when i got k2 i was gonna build 1 hr a night,yea right,more like All Night. Have fun and thanks for any help I May need from veteran k2ers. kc4eyf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
