[Elecraft] UK Elecraft Net
Hi all, Please be aware that because of the WPX contest this weekend it has been decided to cancel this weeks net. The net will be on again next Sunday (4th April) as normal. 73 and good luck in the contest :) Ian -- Ian J Maude, G0VGS SysOp GB7MBC & HB9DRV-9 DX Clusters Member RSGB, GQRP 9838, FISTS 14077 | K3 #455 http://www.amateurradiotraining.org __ 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] Guy Olinger criticism...
On Fri, 26 Mar 2010 21:25:45 -0400, John Ragle wrote: >I don't exactly know what set this guy off I only know Guy from this list, but it's obvious to me that he is a smart engineer and analytical thinker with a positive attitude about life. I view anything he says as worth considering. 73, Jim K9YC __ 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: Internal keyer in TS-480
Most newer rigs only offer iambic type "B" keying while many operators prefer type "A". I would guess this is the reason the article mentioned including an external keyer. Nathan, KO6U Type "A" Guy __ 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] Guy Olinger criticism...
For sure I didn't mean it like you seem to have read it. 73, Guy. On Fri, Mar 26, 2010 at 9:25 PM, John Ragle wrote: > I don't exactly know what set this guy off, but I know what my antennas > are doing because I use a vector network analyzer on them. I was simply > comparing the K2's tuner with a couple of other tuners I've used. My > points were (a) the KAT2 tuner is very good/outstanding for a switcher > that uses discretized components, (b) an external tuner subtracts from > the portability of the K2 or K3, and (c) the discretized components in > the F3K are chosen for the low-frequency bands and don't work at all for > 10 or 6 if one is trying to match a hi-Q antenna structure, which may be > not too far from 50+0i at its resonant frequency. > > Dr. J. L. Ragle -- W1ZI > __ > 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
[Elecraft] Guy Olinger criticism...
I don't exactly know what set this guy off, but I know what my antennas are doing because I use a vector network analyzer on them. I was simply comparing the K2's tuner with a couple of other tuners I've used. My points were (a) the KAT2 tuner is very good/outstanding for a switcher that uses discretized components, (b) an external tuner subtracts from the portability of the K2 or K3, and (c) the discretized components in the F3K are chosen for the low-frequency bands and don't work at all for 10 or 6 if one is trying to match a hi-Q antenna structure, which may be not too far from 50+0i at its resonant frequency. Dr. J. L. Ragle -- W1ZI __ 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] OT: Internal keyer in TS-480
The latest (April 2010) issue of QST has an article by VA7XB about a HF/VHF/UHF emergency "Go Kit" that was designed for a Surrey, BC amateur radio group. They built three of them. The HF transceiver they selected was the TS-480SAT. There is an interesting comment near the end of the article: "An external CW keyer is included in the kit even though the TS-480SAT has its own internal keyer. This was found necessary because many CW operators are unable to adapt to the unique characteristics of the Kenwood built-in keyer." Is this just a matter of different operators having different keyer preferences, or is there something unusual about the Kenwood internal keyer? Al N1AL __ 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] Lyle
Lyle, Email to you is bouncing. __ 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] K2 --> K3 upgrade...
If one has used the KAT2 tuner in a K2, and unconsciously set one's general level of tuner expectations based upon that kind of performance, one has set a level that not many achieve. My KAT 2 has matched random Z's that I could not match with an ATR30 or ATR15, an FT1000MP, and alas no, not with my K3 auto tuner. On a 160m way-off-of 50 j0 dual wire antenna, the K2 would match it at the feed (running battery of course), and it was a month before we could construct a rather odd tuner that would do it QRO without burning tape and wire insulation, overheating, cracking or arcing to toroid cores successfully used elsewhere in QRO applications. We were encouraged by K2/KAT2 working stuff QRP on it and listening to a band that was "alive" with signals. Reading the tuner elements used for match off the K2 menu was invaluable as the wires were picking up immense signal levels interfering with the antenna analyst we had at the time. It took a PAIR of immense T400A-2 powdered iron toroids fiberglass-taped-together as a single core and double polyimide wire plus teflon tubing on the winding to tame it (and run absolutely stone cold), but we knew it would work and how it would work from the KAT2. The one area where nearly all fail (including the KAT2) is the very low Z's presented looking through an odd quarter-wave length of standard coax at a high Z. The simple mental model of *Rig -- great tuner -- any frequency -- any length of coax -- any antenna* is VERY hard to achieve in real life. If the front of that string is dictated by non-negotiable issue, then the antennas have to be picked carefully to fit within it. God bless ya if the first thing you throw up does it, write that down in your diary as one of your really lucky days. It's not the rule. 73, Guy. On Fri, Mar 26, 2010 at 1:58 PM, John Ragle wrote: > I am not familiar with the Palstar tuner, but can share with you my > experience with the K2/100 external tuner and with the Flex 3000 > internal ATU. The K2 external ATU was excellent/outstanding in its > ability to "match" just about anything. The F3K tuner was junk, and I > ended up buying an external "Armstrong" type roller tuner. The key to > success in the tuners that rely on relay switching of > capacitors/inductances is for the switched reactances to be fine enough > for the bridge circuit to find an appropriate selection amongst them. > This becomes particularly important on the higher frequency bands, e.g. > 10 and 6 meters. > > My F3K found it impossible to match my 6 meter quad, which is a fairly > high Q antenna. I am assuming that the K3 which I have on order will be > as good as the K2 external tuner was...we shall see, but knowing > Elecraft, I think I am on OK ground. > > WRT portability, an external tuner is just one more piece of stuff to > carry along...this may be an important consideration for you (or not) > depending on whether you plan to use the "portability" feature of the > K3. I would opt for the internal tuner. > > Best, > > John Ragle -- W1ZI > __ > 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] Radio Shack ESD mat doesn't meet spec
Yes, I realize my measurement technique was not very accurate. For one thing, reading a meter flicker down around 10% of full scale is probably gives no better than +/-50% or so accuracy. But the Radio Shack anti-static mat was reading a couple orders of magnitude greater than the resistivity specified in the ANSI standard. A measurement error on the order of 50% doesn't matter. I have just ordered another anti-static mat from Digi-Key, a 2x3-foot desktop mat made by Desco, DK part number 16-1121-ND for $38.18. Unlike the Radio Shack product, this one has an actual data sheet where it states that it meets the ANSI spec. As a reality check I will try measuring it using the same technique I used before. If it also measures too high a resistance then I will conclude that there is something badly wrong with my measurement procedure. But if it reads OK, then I think we can safely assume the Radio Shack mat doesn't work as it should. Al N1AL On Fri, 2010-03-26 at 14:05 -0800, Rich wrote: > I have concerns about how that resistance was determined. I do not think the > methodology provides an accurate result. > First, look at eh schematic of the 260 - there are components in series > /parallel with the meter. Even with just the low current jack, there are > still components in series. > Second, I have never, NEVER, seen an analog meter provide accurate reading > of a peak or transient voltage. The frequency response/ transient response > is not there. Some of the components in parallel with the meter movement are > there to protect the meter. Additionally, there are balanced weights on the > mechanical portion of the movement to "stabilize" the movement and thus > decrease transient response. > When trying to calibrate a synchro system that was providing a sine wave of > about 20 Hz, my Simpson (freshly calibrated) was off by more than 20 %. of > the voltage displayed on an Oscilloscope which I was using for making the > adjustment. > Third, I know of no Simpson 260 that has a lowest range of 60 micro-amps, > everyone I know of is either 100 or 50 micro-amps. Don't knew what the new > ones are, but am sure that none of the old big ones have that value. > Here is a source for some info on the various Simpson meters. > http://simpson260.com/downloads/downloads.htm > > Rich > __ 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] ACC-Cable Ground?
On Fri, 26 Mar 2010 17:37:57 -0400, Joe Subich, W4TV wrote: >With the ACC connector one needs to connect the shield/common >to both pins 5/12 and the shell. Not necessary -- the circuitry that drives those pins IS referenced to the chassis, so from a LF signal point of view, connections to pins 5/12 is un- necessary, and can actually set up a mild pin 1 problem. 73, Jim K9YC __ 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] Radio Shack ESD mat doesn't meet spec
I have concerns about how that resistance was determined. I do not think the methodology provides an accurate result. First, look at eh schematic of the 260 - there are components in series /parallel with the meter. Even with just the low current jack, there are still components in series. Second, I have never, NEVER, seen an analog meter provide accurate reading of a peak or transient voltage. The frequency response/ transient response is not there. Some of the components in parallel with the meter movement are there to protect the meter. Additionally, there are balanced weights on the mechanical portion of the movement to "stabilize" the movement and thus decrease transient response. When trying to calibrate a synchro system that was providing a sine wave of about 20 Hz, my Simpson (freshly calibrated) was off by more than 20 %. of the voltage displayed on an Oscilloscope which I was using for making the adjustment. Third, I know of no Simpson 260 that has a lowest range of 60 micro-amps, everyone I know of is either 100 or 50 micro-amps. Don't knew what the new ones are, but am sure that none of the old big ones have that value. Here is a source for some info on the various Simpson meters. http://simpson260.com/downloads/downloads.htm Rich -- View this message in context: http://n2.nabble.com/Re-Radio-Shack-ESD-mat-doesn-t-meet-spec-tp4799044p4806654.html Sent from the [K3] mailing list archive at Nabble.com. __ 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] ACC-Cable Ground?
With the ACC connector one needs to connect the shield/common to both pins 5/12 and the shell. Pins 5/12 are not connected to the "frame ground" on the D-Sub board according to the January 2010 schematics. 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown > Sent: Friday, March 26, 2010 12:11 PM > To: elecraft > Subject: Re: [Elecraft] ACC-Cable Ground? > > > On Fri, 26 Mar 2010 13:13:39 +0100, DM4iM wrote: > > >I 'm not sure how to correctly connect to ground. > > The proper termination of a cable shield is ALWAYS the chassis. It's > possible to solder to DB15 and DB9 shells, but it can be a bit > tricky. You must first find a point where a wire to the shell will > allow the connector cover to fit (usually at a corner), tin that > point (and perhaps scrape non-solderable coating from it) and leave > some solder on it, shape the shield wire carefully to fit with the > connector cover, then solder it. > > 73, > > Jim Brown K9YC > > > > __ > 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
[Elecraft] K3: WHY MY S-METER DID NOT EXCEED S-9
For months I wondered why medium strength CW-signals showed up quite well on my K3's S-meter whereas strong signals never went past the S-9 mark. Something wrong with my 400 Hz roofing filter? Then, one day, i noticed that I had switched the CWT function on. I turned it off, and presto: S-9 plus!!! FWIW. Rick, OZ5RM __ 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] K3 for sale.
Hello. I have the following for sale. K3/100-FK3 100W transceiver factory assembled. Serial # 2571 KAT3-F K3 ATU factory installed KBPF3General coverage RX module KFL3A-200 K3 200HZ,5 pole filter KFL3A-1.8k 1.8 kHz, 8 pole roofing filter KFL3A-6K AM K3 6 kHz, 8 pole filter KFL3B-FM FM-Bandwidth, 8 pole roofing filter K3FLMATCHK3 5 pole filter macthing to 40 Hz (2.7) KPCA-FPower cable assembly (spare cable) KRX3K3 2nd Rx modular kit KTCX03-1 K3 TCXO 1ppm F/W correction TO 0.5 ppm KFL3A-1.8k 1.8kHz, 8 pole roofing filter (for second receiver) KXV3K3 transverter interface KDVR3 Digital voice recorder PR66 meter preamp MH2-R Hand held microphone for K2/K3 Owner's manual revision D2 January 1, 2009 $4175.00 CAD plus shipping. 73. John. __ 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: R/T and T/R timing
On Fri, 26 Mar 2010 06:38:26 -0800 (PST), David Windisch wrote: See comment below: [snip] >After key-up, on quiet bands or a dummy load, I hear a short "tail" (sounds >like an echo) at the end of each code element. After 20 years of using good QSK rigs, I have occasionally noticed the echo you are hearing when in the sunspot peaks and with good conditions, but it's not the rigs, it's the signal making the round trip. In your case, if you can hear it on the dummy load it's probably a switching or RF problem. TOM, N5GE BT 73 ES GUD LUK AR DE N5GE SK __ 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] K2 Remote Power On/Off Ideas
Brian, I would suggest something like a parallel port control to close a relay on the output of the power supply to the K2. One example can be found at http://electronickits.com/kit/complete/elec/ck1601.htm and it includes software to run the parallel port outputs. I have not played with one of these things before, but it sounds like it might be workable. 73, Don W3FPR Brian - N5BCN wrote: > Hello all, > > I've successfully set up my K2 for remote operation over the Internet using > Ham Radio Deluxe (HRD) remote server and VoIP software (IP Sound for the > LAN, Skype for the Internet). > > I'm now researching ideas on how to remotely switch on and off the Power > Supply to the K2 and/or the K2 itself. I suppose the K2 could be left > switched "on" and simply cycle the power supply. The computer itself can be > powered up using the "Wake On Lan (WOL)" feature and sending a "magic > packet" over the Internet. > > There are power switches out there with built in ethernet cards that cost in > the $100-$200 USD range. Tripp-Lite also makes a UPS system with an > optional network card that allows remote IP access to the power switches, > but it's a pricey solution. Insteon has a whole range of home automation > products that are controlled either wirelessly, through a network, or > through the home's AC wiring (possibly an RF noise generator). > > I'd love to hear from anybody that's done this and what their solution was. > > 73 > > N5BCN Brian > > > __ 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 options input sought
You will also need a 2.7 or 2.8 kHz filter for SSB TX. The 6 kHz filter is for AM. The 500 Hz filter is a good choice for CW and Data. The ATU is a very slick and well-integrated device. It memorizes L/C settings for each band, in many segments (see manual). I added the ATU later, but in retrospect I should have added it first. Good Luck & 73, matt W6NIA K3 #24 On Fri, 26 Mar 2010 10:16:16 -0700 (PDT), you wrote: >I am upgrading the shack from a K2 to K3. I have a nice Palstar tuner and an >ACOM amp. I am mostly a SSB guy, not big on contests or FM. Given these >resources and needs my planned configuration for the new K3 is: >K3/100 KXV3A IF Out and RX Ant. General coverage RX bandpass KDVR3-DVR KUSB >500 Hz 5pole CW filter and 6kHz AM/ESSB 8 pole filter. Thoughts? Am I unwise >for not including the internal ATU even though I have the Palstar? Thanks and >73 Dave >__ >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
[Elecraft] K2 --> K3 upgrade...
I am not familiar with the Palstar tuner, but can share with you my experience with the K2/100 external tuner and with the Flex 3000 internal ATU. The K2 external ATU was excellent/outstanding in its ability to "match" just about anything. The F3K tuner was junk, and I ended up buying an external "Armstrong" type roller tuner. The key to success in the tuners that rely on relay switching of capacitors/inductances is for the switched reactances to be fine enough for the bridge circuit to find an appropriate selection amongst them. This becomes particularly important on the higher frequency bands, e.g. 10 and 6 meters. My F3K found it impossible to match my 6 meter quad, which is a fairly high Q antenna. I am assuming that the K3 which I have on order will be as good as the K2 external tuner was...we shall see, but knowing Elecraft, I think I am on OK ground. WRT portability, an external tuner is just one more piece of stuff to carry along...this may be an important consideration for you (or not) depending on whether you plan to use the "portability" feature of the K3. I would opt for the internal tuner. Best, John Ragle -- W1ZI __ 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] PSK & Whurm Noise
Hi all Problem solved. I was driving the sound card too hard. It's having a new radio that made me think that it had to be the radio's fault. As it turned out it was something simple that I would have spotted and fixed with my old radio. Thanks again Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4805358.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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 options input sought
On Mar 26, 2010, at 10:16 AM, david beckwith wrote: > I am upgrading the shack from a K2 to K3. I have a nice Palstar tuner and an > ACOM amp. I am mostly a SSB guy, not big on contests or FM. Given these > resources and needs my planned configuration for the new K3 is: > K3/100 KXV3A IF Out and RX Ant. General coverage RX bandpass KDVR3-DVR > KUSB 500 Hz 5pole CW filter and 6kHz AM/ESSB 8 pole filter. Thoughts? Am I > unwise for not including the internal ATU even though I have the Palstar? > Thanks and 73 Dave Dave -- I would buy the ATU, well, actually I did buy the ATU with my K3. I do not have the auto-tuner but the main reason I did by the ATU is because I intend to use my K3 in a portable fashion too where I will not be dragging along a lot of extra equipment -- especially a big hunking Palstar auto-tuner (which is still on my list of toys to buy). __ 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] K3 options input sought
I am upgrading the shack from a K2 to K3. I have a nice Palstar tuner and an ACOM amp. I am mostly a SSB guy, not big on contests or FM. Given these resources and needs my planned configuration for the new K3 is: K3/100 KXV3A IF Out and RX Ant. General coverage RX bandpass KDVR3-DVR KUSB 500 Hz 5pole CW filter and 6kHz AM/ESSB 8 pole filter. Thoughts? Am I unwise for not including the internal ATU even though I have the Palstar? Thanks and 73 Dave __ 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] (no subject)
If this is happening in PSK31 and I think you said RTTY also, then it is most likely just the PA cooling fans speeding up as the temp rises. Nothing to do with microphones or software or whatnot. It's just the fans speeding up. The fans may not be rubbing anything, but you will hear them as they speed up to keep your PA cool. It's normal. -- The radio is the K/100 version. It's not a rubbing noise. I've tested the fans. The sound's a bit like one of those older rigs with an internal ATU tuning up. Not the prtch noise but more the whirring noises. Bill -- __ 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] K2 Remote Power On/Off Ideas
Hello all, I've successfully set up my K2 for remote operation over the Internet using Ham Radio Deluxe (HRD) remote server and VoIP software (IP Sound for the LAN, Skype for the Internet). I'm now researching ideas on how to remotely switch on and off the Power Supply to the K2 and/or the K2 itself. I suppose the K2 could be left switched "on" and simply cycle the power supply. The computer itself can be powered up using the "Wake On Lan (WOL)" feature and sending a "magic packet" over the Internet. There are power switches out there with built in ethernet cards that cost in the $100-$200 USD range. Tripp-Lite also makes a UPS system with an optional network card that allows remote IP access to the power switches, but it's a pricey solution. Insteon has a whole range of home automation products that are controlled either wirelessly, through a network, or through the home's AC wiring (possibly an RF noise generator). I'd love to hear from anybody that's done this and what their solution was. 73 N5BCN Brian - K2 #6800 KSB2 KAT2 KIO2 KNB2 -- View this message in context: http://n2.nabble.com/K2-Remote-Power-On-Off-Ideas-tp4805003p4805003.html Sent from the [K2] mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Doug Thanks for the suggestion. I disconnected my Mike and it makes no difference. Thanks Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804985.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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: R/T and T/R timing - - oops!
Dunno what I was thinking, re DELAY control! Of course Tom is correct. Specific to the Alpha (p-i-n diode QSK), the Ip leds overshoot dimly from normal Ip to as much as 1.5A at key-up in QSK mode. Adjusting DELAY has no effect on this. The led overshoot goes away in non-QSK modes if DELAY is set above 0.03. Grounding the RELAY line on the Alpha without r-f drive causes the same led overshoot. As we were. Brgds, Dave, N3HE -- View this message in context: http://n2.nabble.com/K3-R-T-and-T-R-timing-tp4804248p4804972.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Mike Thanks for trying to help. My ammunition pouch was empty a long time before yours was (Hi). Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804965.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
For some reason, I thought it was hardware, sorry. I'm out of bullets, but someone here will hit it. Mike Screwtop wrote: > Mike > > Winwarbler is part of the DXLabs integrated logging software suite. It takes > care of my logging and DXCC record. It's not a very impressive record but > none the less important to me. > > The mode I'm using for PSK is"DATA A" and for RTTY is "AFSK A". > > I am using the internal speaker. > > Thanks > > Bill > __ 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] ACC-Cable Ground?
On Fri, 26 Mar 2010 13:13:39 +0100, DM4iM wrote: >I 'm not sure how to correctly connect to ground. The proper termination of a cable shield is ALWAYS the chassis. It's possible to solder to DB15 and DB9 shells, but it can be a bit tricky. You must first find a point where a wire to the shell will allow the connector cover to fit (usually at a corner), tin that point (and perhaps scrape non-solderable coating from it) and leave some solder on it, shape the shield wire carefully to fit with the connector cover, then solder it. 73, Jim Brown K9YC __ 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] PSK & Whurm Noise
Do you have a mic open maybe? 73 Doug N3QW - Original Message - From: "Screwtop" To: elecraft@mailman.qth.net Sent: Friday, March 26, 2010 11:46:19 AM GMT -05:00 US/Canada Eastern Subject: Re: [Elecraft] PSK & Whurm Noise Mike Winwarbler is part of the DXLabs integrated logging software suite. It takes care of my logging and DXCC record. It's not a very impressive record but none the less important to me. The mode I'm using for PSK is"DATA A" and for RTTY is "AFSK A". I am using the internal speaker. Thanks Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804693.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Hi Joe The radio is the K/100 version. It's not a rubbing noise. I've tested the fans. The sound's a bit like one of those older rigs with an internal ATU tuning up. Not the prtch noise but more the whirring noises. Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804715.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Mike Winwarbler is part of the DXLabs integrated logging software suite. It takes care of my logging and DXCC record. It's not a very impressive record but none the less important to me. The mode I'm using for PSK is"DATA A" and for RTTY is "AFSK A". I am using the internal speaker. Thanks Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804693.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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: R/T and T/R timing
Hi Dave: About 25 or so years ago, I added full QSK to my Alpha 76PA (using the QSK circuitry from the Alpha 78 (which had QSK from the factory). Since that time, I've used the QSK-ed Alpha with every radio I've had, full QSK, with NO HOT SWITCHING... EVER! And I'm NOT(!) using the built-in (Alpha) pre/post keying circuitry, which never gave satisfactory timing. Just letting the rigs key the T-R line. The K3 is fully-timed such that you'll close the T-R line before RF appears, and you'll drop RF before the T-R line drops... unless you're using some sort of slow open-frame relay. Vacuum relays, reed relays, and PIN diodes will all switch long before RF appears and well after it disappears. For what it's worth, the DELAY control does NOT control key-down to RF-available timing... it controls key-up to return-to-RX timing. 73, Tom Hammond N0SS p.s. If ANYONE with an Alpha 78 might happen to be interested, I have a completely designed, and working PC board to add both full QSK AND grid overdrive protection to your Alpha 78-series amplifier. ETO/Alpha Power no longer offers the Alpha 78 QSK PC board, but I DO...! Cost for the conversion is about $120 complete. Info sent on request. At 09:38 03/26/2010, David Windisch wrote: >Hi, all concerned: > >The time from key-down to rf-available, is well-defined, and controllable >with the DELAY knob from 8ms to 2s. > >Is the time from key-up to no r-f output as well-defined, and controllable? > >My concern is hot-switching an amplifier, in my case either a Ten-Tec 425 or >an Alpha 89, operating QSK c-w. > >After key-up, on quiet bands or a dummy load, I hear a short "tail" (sounds >like an echo) at the end of each code element. > >Is the situation different on SSB? > >Any ideas out there, please? > >Tia & brgds, >Dave, N3HE >-- >View this message in context: >http://n2.nabble.com/K3-R-T-and-T-R-timing-tp4804248p4804248.html >Sent from the Elecraft mailing list archive at Nabble.com. >__ >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] PSK & Whurm Noise
Hi Bill, You didn't say whether your K3 has the 100W option (KPA3), but if it does, are you sure it's not the fans? Maybe kicking up to a higher speed than they did previously? You can turn the fans on manually to see what they sound like at all 4 speeds with the CONFIG:KPA3 item in the menu. See the entry for the KPA3 setting in the manual for details. 73 -- Joe KB8AP On Mar 26, 2010, at 7:02 AM, Screwtop wrote: > > Hi > > I'm a new owner of a K3 and I'm still in the "setting up" process. > > ...This time when transmitting > my signal the radio made a strange whurm noise. I'm not sure if t > was from > the speaker or not. It sounded as if it was coming from somewhere > near the > back of the K3. > ... > 73 > > Bill > GM0VIT __ 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] Wanted: Elecraft K3 Optiosn (Tuner, Sub RX etc)
Hello! I am looking for some options for my K3. KAT3 Tuner, KDVR3 Digital Voice Recorder, KTCXO3-1 TCXO, KXV3A RX Ant., IF Out and Xverter Interface (last Version), KFL3A-2.8K 2.8 kHz, 8-pole filter, KFL3A-400 400 Hz, narrow 8-pole filter, KFL3A-250 250 Hz, narrow 8-pole filter etc.. Thanks 73s Alex NH7VW -- View this message in context: http://n2.nabble.com/Wanted-Elecraft-K3-Optiosn-Tuner-Sub-RX-etc-tp4804542p4804542.html Sent from the [K3] mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Bill, any particular reason why you're using WinWarbler? The K3 is perfectly capable of doing PSK and RTTY without any interface other than a sound card in the computer. I'd take that out of the equation for a test. What mode is the K3 in? Are your computer speakers close enough to the K3 that the sound might be coming from them? Mine sometimes make am odd sounding hum. I've suffered some whauruma before! 73, Mike NF4L Screwtop wrote: > Julian > > The only Scottish term that I can think of comes to whurm is whauruma. > This term used to express confusion on waking after a heavy session on the > amber liquid :-) > > The noise is not PSK it is on top of the PSK sound. It sounds as if the rig > is protesting at something. I know that I am being vague. > > Bill > __ 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] K3: R/T and T/R timing
Hi, all concerned: The time from key-down to rf-available, is well-defined, and controllable with the DELAY knob from 8ms to 2s. Is the time from key-up to no r-f output as well-defined, and controllable? My concern is hot-switching an amplifier, in my case either a Ten-Tec 425 or an Alpha 89, operating QSK c-w. After key-up, on quiet bands or a dummy load, I hear a short "tail" (sounds like an echo) at the end of each code element. Is the situation different on SSB? Any ideas out there, please? Tia & brgds, Dave, N3HE -- View this message in context: http://n2.nabble.com/K3-R-T-and-T-R-timing-tp4804248p4804248.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Julian The only Scottish term that I can think of comes to whurm is whauruma. This term used to express confusion on waking after a heavy session on the amber liquid :-) The noise is not PSK it is on top of the PSK sound. It sounds as if the rig is protesting at something. I know that I am being vague. Bill -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804340.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] QSK CW: TX DLY vs CW WGHT with internal keyer
I think what we are really talking about is Keying Compensation, not Code Weight. I use a K1EL WinKeyer with Keying Compensation set to 06 ms with my K3. See pages 15 and 16 here for good discussion of Keying Compensation, http://k1el.tripod.com/files/WKUSB_QuickStart.pdf . My twenty-plus-year old CMOS Super Keyer II also has Keying Compensation option. 73, Hank, W6SX Mammoth Lakes, California Elevation 8083 feet in John Muir's Range of Light On Thu, Mar 25, 2010 at 10:22 PM, Bill VanAlstyne W5WVO wrote: Just thinking out loud here, having recently upgraded my 3-500Z amplifier > with fast vacuum T-R relays... > > The default (and fastest) QSK transmit delay setting (TX DLY) is 8 ms. At > 20 WPM, this shortens the length of a nominal 60 ms dit element to 52 ms > long. To regain this lost "dit time" when using QSK, the default setting for > the CW WGHT element-to-space ratio is 1.15. (52 ms X 1.15 = 60 ms > approximately.) So the 1.15 default weight factor was seemingly arrived at > by using 20 WPM as a nominal QSK code speed. > > Assuming this reasoning is correct (Wayne/Eric, please enlighten me if it > isn't), two things come to mind: > > First, since amplifier T-R speeds below 4 ms are readily achievable using > vacuum RF relays, and faster than that using PIN diodes, it might make sense > to make TX DLY settings of less than 8 ms available -- say, down to 2 ms, > while still leaving the default at 8 ms. > > Second, as QSK code speed is increased, the TX DLY factor (whatever it is, > currently 8 ms by default) becomes a larger and larger proportion of the > element time, requiring a larger weight ratio to correct for the TX DLY > shortening. For example, at 25 WPM (48 ms element) and TX DLY = 8 ms, a CW > WGHT setting of 1.20 would be correct; at 30 WPM (40 ms element), again with > TX DLY = 8 ms, a CW WGHT setting of 1.25 would be correct; and so on. Might > it make sense to optionally have CW WGHT track with the user's code speed > setting during QSK operation? (You wouldn't want to do this in non-QSK CW > mode, of course.) The tracking formula would be based on the user's TX DLY > setting, whether 8 ms or something faster/slower. > > Of course, this would only apply if the internal CW keyer were being used; > if using an external key or keyer, you'd be stuck with a fixed CW WGHT > setting... > > Comments? > > Bill W5WVO > __ 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] PSK & Whurm Noise
I'm not sure what you mean by a "whurm noise". I presume it's some Scottish term. :) If you have the audio monitor enabled then the K3 will play the digital audio from the computer sound card through its speaker. Depending on the pitch selected with the waterfall I suppose it might sound like "whurm". If the sound definitely isn't PSK31 at whatever pitch you selected then perhaps you are getting RF feedback into the audio. What you can do is long-press the TX button to put the K3 into Test mode. You can then TX and it will go through the motions but not actually produce any RF. If you still hear the noise then it is audio-related, if you don't then it is RF-related. Screwtop wrote: > > Hi > > I'm a new owner of a K3 and I'm still in the "setting up" process. > > Yesterday I managed to have a PSK QSO via Winwarbler which is part of the > DXLabs logging software suite. Today I updated the firmware using the K3 > Utiltiy. Following this I tried another PSK QSO. This time when > transmitting my signal the radio made a strange whurm noise. I'm not sure > if t was from the speaker or not. It sounded as if it was coming from > somewhere near the back of the K3. A similar thing happened with RTTY. > > I've switched of the K3 and it'll stay switched off until I'm sure that > I'm not hurting it. > > I'm at a loss. Any help gratefully received. > > 73 > > Bill > GM0VIT > - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804075.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] PSK & Whurm Noise
Hi I'm a new owner of a K3 and I'm still in the "setting up" process. Yesterday I managed to have a PSK QSO via Winwarbler which is part of the DXLabs logging software suite. Today I updated the firmware using the K3 Utiltiy. Following this I tried another PSK QSO. This time when transmitting my signal the radio made a strange whurm noise. I'm not sure if t was from the speaker or not. It sounded as if it was coming from somewhere near the back of the K3. A similar thing happened with RTTY. I've switched of the K3 and it'll stay switched off until I'm sure that I'm not hurting it. I'm at a loss. Any help gratefully received. 73 Bill GM0VIT -- View this message in context: http://n2.nabble.com/PSK-Whurm-Noise-tp4804024p4804024.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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) Grounding Mat
On Thu, 25 Mar 2010 08:23:52 -0700 (PDT), Wes Stewart wrote: >Also known as the, "You can't get a static charge on a wet cat" theory. > One thing is certain: you will have a devil of a time assembling a K3 with a wet cat tied to your wrist. 73, Drew AF2Z __ 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] Fw: K2 For sale price reduction
The K2 is sold. 73,72 Mike, W9QS EX: KN6TBP (1956), K1DGQ, DL4KM, K5LJN, W9FRR, W9KVF K3, K2, SP1 Fists #12327, FP #268, OOTC #4423, QRPARCI #9521 --- On Mon, 3/22/10, Mike, W9QS wrote: > From: Mike, W9QS > Subject: Fw: K2 For sale price reduction > To: "elecraft" , "Low Power Amateur Radio > Discussion" , qr...@qrp-l.org > Date: Monday, March 22, 2010, 1:03 PM > After researching other sales I > realized that my original price was too high. New > price is $850.00 plus shipping. __ 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] ACC-Cable Ground?
Elecrafters, i'm in the process of making a cable for the K3's ACC-socket. I 'm not sure how to correctly connect to ground. There is a Pin labeled ground, should i solder it to the shield? Should i solder the shield to the shell of the plug? If yes, both ends? Martin -- 73, DM4iM __ 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] Radio Shack ESD mat doesn't meet spec
Oh? I didn't know that. How's that work? Mike Brett Howard wrote: > The issue is that ESD often doesn't immediately kill components. More > often it simply shortens their lifespans. > > ~Brett (KC7OTG) > > > On Thu, 2010-03-25 at 20:59 -0400, Mike wrote: > >> My antecdoctal evidence says it worked for me, both on the initial build >> and on the removal and re-installation of the DSP board after upgrade. >> I'm not going to argue with what Alan said, as I'm not qualified, but >> I'm betting the health of my K3 on it, and wouldn't hesitate to pull it >> out again. YMMV. >> >> Perhaps Elecraft could publish what it considers to be minimum >> requirements, but I'd be willing to bet a cold 807 that because of >> liability issues, they'd go for the high-end specs. >> >> 73, Mike NF4L >> >> David Christ wrote: >> >>> So the question becomes does it work well enough for assembling >>> Elecraft kits even though it does not meet industry specs. Not >>> backing any particular horse in this race, but I know that there are >>> other areas in which industry specs are overkill for me. >>> >>> Who knows the answer? >>> >>> David K0LUM >>> >>> >>> >>> At 1:25 PM -0400 3/25/10, Gary Hvizdak wrote: >>> >>> All, With regard to the Radio Shack's 276-2370 "Anti-Static Service Kit", check out the message Alan Bloom (N1AL) posted a couple years ago which begins ... Well, I've convinced myself that the Radio Shack portable ESD mat, P/N 276-2370 doesn't work properly ... You can read the full text of Alan's post in the Reflector archives at http://mailman.qth.net/pipermail/elecraft/2008-February/083794.html 73, Gary KI4GGX __ 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 >>> >>> >>> >> __ >> 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
