[Elecraft] K3: latest Prolific drivers for the KUSB
Dick: In a recent posting you provided a link for the latest Prolific PL-2303 USB-to-serial drivers for the KUSB cable. Is there anything to be gained by installing the the most recent version, rather than sticking with the version provided by the link on the Elecraft website? 73 Chris, M0PSK __ 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] K1 test supplies
So I get my K1 today, and would like to know what, if any test gear I need. I have a multimeter, and I am putting together the mini modules dummy load and signal generator. I would like to get the spectrograph software for my touch, but I guess that is where I need suggestions. Thanks and happy building. Greg Doughty KI4BBL __ 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] Need Toroids!
This is not elecraft related! I am needing 10 ea of the #31 mix 2.4 in diameter to Make baluns for my low band Slopers! - I need to eliminate The high RFI alarm on my K3 s! Please respond off the list! Thanks and 73, Bill N4ZI K3 #1059/2914 __ 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: latest Prolific drivers for the KUSB
My abiding principle with anything to do with computers is, if it ain't broke don't fix it! Chris Gibson-3 wrote: Dick: In a recent posting you provided a link for the latest Prolific PL-2303 USB-to-serial drivers for the KUSB cable. Is there anything to be gained by installing the the most recent version, rather than sticking with the version provided by the link on the Elecraft website? - 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/K3-latest-Prolific-drivers-for-the-KUSB-tp4870058p4870574.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: latest Prolific drivers for the KUSB
I think some users were having trouble with applications like N1MM. There's was a Prolific driver issue with the MSCOMMCTL32.ocx (I think that's right) that VB apps use that was fixed in this most recent version. As a matter of general practice I have to try/use the most recent drivers and learn what's up with them because usually our customers can install the most recent but rarely are they able to get an n-1 version from the vendor. I'll ask Eric/Brian to update the Elecraft web site versions. 73 de Dick, K6KR From: Chris M0PSK [mailto:chrism0...@googlemail.com] Sent: Thursday, April 08, 2010 2:22 AM To: Elecraft Reflector; Dick Dievendorff Subject: K3: latest Prolific drivers for the KUSB Dick: In a recent posting you provided a link for the latest Prolific PL-2303 USB-to-serial drivers for the KUSB cable. Is there anything to be gained by installing the the most recent version, rather than sticking with the version provided by the link on the Elecraft website? 73 Chris, M0PSK __ 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] Testing anti-static mats - found one that works
How are you measuring resistance? Matt W8ESE On Wed, Apr 7, 2010 at 6:53 PM, Alan Bloom a...@elecraft.com wrote: It is important to use an anti-static mat to prevent damage to electronic devices when working on solid-state equipment. Since Elecraft is heavily kit-oriented this is a topic of interest for Elecrafters. Quite some time ago I did some testing on the Radio Shack portable anti-static mat and found that its resistance was way too high to do a proper job of bleeding off static charges. I then bought another low-cost mat from Jameco and it also measured way too high. I began to doubt my testing methodology (described in a previous message, copied below). So now I have bought a third mat. This one is more expensive, but unlike the cheaper mats it has an actual data sheet that specifies that it meets ANSI specs for anti-static performance. I figured if it also measured bad then my testing must be in error. But it didn't. Here are the results: Radio Shack P/N 276-2370 ($22.99) - 26 G ohms (26,000 M ohms) Jameco P/N 10584 ($16.45) - 44 G ohms (44,000 M ohms) Digi-Key P/N 16-1121-ND, (Desco 66164) ($38.18) - 41 M ohms The Desco mat's resistance is about 1000x lower than the cheaper ones! This mat is quite large, (2 x 3 feet, 61 x 91.4 cm) so if you buy one you may need to cut it down to fit on your workbench. It comes with a common point ground kit (that you have to install on the mat yourself) that provides a long wire with solder lug to connect to ground and a two-socket connector for connecting one or two wrist straps. The wrist strap and cord have to be purchased separately. It looks like Digi-Key P/N SCP172-ND for $8.95 should work. So the total cost is about $47. But the cheap mats are no bargain if they don't work. I tried cleaning the surface of the mats with some wipes that are especially intended for cleaning anti-static mats (Digi-Key MTT20-ND) and they did help. The Radio Shack mat went from 26 to 6 Gohms and the Jameco went from 44 to about 12 Gohms. But those numbers are still way too high. The Desco mat's resistance also went down, from 41 to 20 Mohms. The Desco mat came with a small spray bottle of Rezstore, their own brand of mat cleaner. By the way, the back side of the Desco mat is some kind of highly-conductive black rubber, apparently to keep the entire mat surface at equal potential. They warn that you should always use it blue side up because the resistance of the back side is too low. Sure enough, it was low enough to measure with my digital multimeter - about 80 kohms. So my recommendation is to buy a mat such as the Desco model that has a data sheet that specifies that it meets ANSI/ESD S4.1 or ANSI/ESD S20.20. If you already have the Radio Shack mat, then either replace it or at least clean it with a cleaner approved for ESD mats. (You're not supposed to use soap or detergent because it might harm the anti-static properties.) Gary KI4GGX recommends a product made by Techspray: http://www.all-spec.com/products/1733-QT.html Whatever you use, it is important to keep the mat clean. A word about my test procedure. Accuracy is not very good because I am trying to read the peak amplitude of a brief needle flicker. If I had an analog meter with a high-impedance input that would work better because the reading wouldn't change so fast. Also my sauce pans no doubt do not give the same answer as the ANSI-specified test probes. So overall, I doubt my measurement accuracy is better than +/- 50% or so. But for the purposes of this test that's good enough. In the test procedure below I had to substitute a 1.0 uF capacitor when measuring the Tesco mat in order to get a long-enough time constant to measure accurately. (Also, it's actually a Triplett meter, not a Simpson.) Alan N1AL On Wed, 2008-02-27 at 09:51 -0800, Alan Bloom wrote: Well, I've convinced myself that the Radio Shack portable ESD mat, P/N 276-2370 doesn't work properly. The ESD Association http://www.esda.org has promulgated an industry-standard test for ESD mats, ESD S4.1. It is the standard specified by most commercial mats. I decided not to spring for the $70 to buy a copy of the standard, but other information I found on the web describes the test in general terms. It uses two circular electrodes, each weighted with 5 pounds, spaced 10 inches apart on the mat. The Point to Point Resistance is specified to be: At 40-60% RH: 10^6 - 10^7 ohms At 20-40% RH: 10^7 - 10^8 ohms At 10-20% RH: 10^8 - 10^9 ohms I don't know what the RH here in Santa Rosa was yesterday when I did the test, but I don't think it was very low since it has been raining recently and the ground is still damp. For sure the resistance shouldn't be below 10^9 ohms (1 gigohm) and probably more like 10^8 or 10^7 (100 or 10 megohms). I measured 2.5 x 10^10 ohms (25 gigohms), which puts the Radio Shack mat way out of spec. Test
Re: [Elecraft] Using Buddi Pole Deluxe Antenna with K3
Don't mean to jump in, but I'm actually kicking the idea of a Buddipole around for portable operation myself. I used to think it was expensive until I recently tried to homebrew an equivalent out of parts from the hardware store. To my surprise, by the time I got one side built with a homebrew coil, supports, etc., I was getting distressingly close to having spent somewhere in the neighborhood of the cost of a Buddistick and I _still_ had this hulking piece of garbage that actually weighed a fair bit and couldn't be broken down, etc. If you already have stuff on hand it can be cost-effective, but if you're like me and having to go from scratch you'll be shocked and amazed at how even something simple adds up. The other solution - a 100' piece of wire - is cheap from the hardware store (about 15 bucks) and works surprisingly well with a good tuner and counterpoise, but requires a tree or other support to get it into the air. And then you have the inevitable snarl of wire for the main piece and the counterpoise unless you figure out a good method of coiling/uncoiling the wire (more $$$). My problem too is some of the places I'd like to go QRV are on tops of hills and mountains where good trees aren't available so my wire ant. wouldn't work there, unless I had my own support somehow. The only drawback I can see with the buddipole is that, because it's intended as a resonant system, you'd need to retune it by moving the clips when you change bands. With the wire, the tuner just takes care of that. But to be honest, I havn't been able to come up with a significantly better/cheaper solution myself for portable that does the same thing. I can go cheaper, but it's bulkier and heavier. Otherwise, it costs about as much hi hi. So I'm considering one too and may even use it in my apt. when I'm not /p. My indoor wire solution works moderately well for receive, but is not great for transmit 73, LS W5QD -- View this message in context: http://n2.nabble.com/Using-Buddi-Pole-Deluxe-Antenna-with-K3-tp4867678p4870948.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] How are you measuring resistance? -- was Testing anti-static mats ...
Thu Apr 8 08:54:52 EDT 2010 Matt Palmer (W8ESE) wrote ... How are you measuring resistance? -- Matt, Alan described his test setup in an earlier post which you can find at http://mailman.qth.net/pipermail/elecraft/2008-February/083794.html in the Reflector archives. 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
Re: [Elecraft] K1 test supplies
Greg, Other than your DMM and dummy load, you will not need anything else if all goes well. A comment on your multimeter -- if that is an older analog type, you should replace it with a DMM (digital type) because the analog type uses a high voltage for measuring resistance and will turn active devices into conduction and give you erroneous readings. Even an inexpensive DMM like the type that go on sale for less than $10 at places like Harbor Freight will work just fine. The signal generator (I assume the XG2) can be used for making MDS measurements and setting the S-meter response. If you run into trouble, you may need a stronger signal source on each of the K1 bands covered - another transmitter operating into a dummy load will do for that task. If you have trouble with the transmit section, you will need an RF Probe to do Transmit Signal Tracing. 73, Don W3FPR ki4...@cox.net wrote: So I get my K1 today, and would like to know what, if any test gear I need. I have a multimeter, and I am putting together the mini modules dummy load and signal generator. I would like to get the spectrograph software for my touch, but I guess that is where I need suggestions. Thanks and happy building. Greg Doughty KI4BBL __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.800 / Virus Database: 271.1.1/2796 - Release Date: 04/07/10 02:32:00 __ 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] Using Buddi Pole Deluxe Antenna with K3
The K3 works fine with the Buddipole. I've used mine a few times. I've also used the Buddipole with a KX1, K1, K2 and FT817. It works fine as long as you realize it isn't going to be be as good as a full size wire dipole. Here is how I do it: 1) Setup the antenna for the band you want to operate. I usually set it up as a horizontal dipole but you can set it up as a sloping dipole or vertical. I'm not sure which is best. When the antenna is setup, I use the blue card that comes with the antenna to make the correct settings for the band. If it says to extend the red side to 5 - 5.5 sections, I extend it right in the middle. 2) I then put the radio to a very low power (a few watts) and put it in CW mode with the antenna tuner off and do a short transmission looking at the SWR meter to check the SWR. If it is less than 3:1, I go with it and use the antenna tuner to top it off. If it is more than 3:1, I go to the next step 3) to determine if you need to lengthen or shorten the antenna, tune lower in the band and try the transmission test again. If the SWR is less than it was before, the antenna needs to be shortened. If the SWR is higher than it was before, the antenna needs to be lengthened. You can also tune higher in the band and check there. I make a small adjustment to the whips (1 inch or so), then go back to the original frequency and try again. I use CW 95% of the time and I've found that once I get it close in the CW section of the band I have no problems using it on that band for any CW frequency. The antenna tuner will help with this. I hope this helps. I started using the buddipole last summer and have only used it a few times this year so I hope to get more experience with it this summer. I bought an antenna analyzer that helps with the tuning of the antenna. If you get one of those, you can use it to determine the setting you need without transmitting. It is not necessary, but is helpful. 73 Jay On Wed, Apr 7, 2010 at 5:26 PM, KC2VNI st...@smarrano.com wrote: I have just gotten my radio set up thanks to W3DVX. It has both the internal ATU and 100W power amp options in it. I was wondering if any of you have some tips on how to operate a Buddi Pole Deluxe antenna system? If you have any suggestions or some past experience, please advise. Here are some of my questions: 1) Do you set the frequency 1st on the front of the radio AND then activate the tuner? 2) The antenna is rated for 250W. I would assume that this means it's okay to use the full 100W from the amp but I am concerned about the effects of SWR. 3) I was wondering if I'll get better results using the antenna as a vertical or do I want to try it on horizontal dipole (I believe you get about 16 feet of height above grade). 4) I was wondering if any one has had experience with the Buddipole on SSB? Please advise with whatever opinions you may have. Please know that I recognize I'm probably not going to get more than say NVIS type of propagation with this type of set-up (since I'm in a relatively flat area with no hills or the like). 73 KC2VNI-Steve -- View this message in context: http://n2.nabble.com/Using-Buddi-Pole-Deluxe-Antenna-with-K3-tp4867678p4867678.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] Using Buddi Pole Deluxe Antenna with K3
I've found that the Buddipole is very flexible and you can configure it in many ways. I think this is what causes some people to not like the antenna. There isn't just one way to do it. I like it because you can play with it and try out different configurations to see what works for you. I have used the Buddipole with wire. I put the Buddipole together without the whips and instead of the whips I used a wire to make a longer inverted-V. It worked fine on 40m and 20m without changing the taps (using the ATU of course). I didn't try it on other bands. If you like playing with antennas outside, it is a good kit. At home, I have a 20m - 6m vertical but nothing for 40m. When it is nice outside, I setup the Buddipole for 40m on my deck and operate from inside where it is either warmer or colder (depending on the season) and without the bugs. 73 Jay On Thu, Apr 8, 2010 at 9:15 AM, lstavenhagen lstavenha...@hotmail.com wrote: Don't mean to jump in, but I'm actually kicking the idea of a Buddipole around for portable operation myself. I used to think it was expensive until I recently tried to homebrew an equivalent out of parts from the hardware store. To my surprise, by the time I got one side built with a homebrew coil, supports, etc., I was getting distressingly close to having spent somewhere in the neighborhood of the cost of a Buddistick and I _still_ had this hulking piece of garbage that actually weighed a fair bit and couldn't be broken down, etc. If you already have stuff on hand it can be cost-effective, but if you're like me and having to go from scratch you'll be shocked and amazed at how even something simple adds up. The other solution - a 100' piece of wire - is cheap from the hardware store (about 15 bucks) and works surprisingly well with a good tuner and counterpoise, but requires a tree or other support to get it into the air. And then you have the inevitable snarl of wire for the main piece and the counterpoise unless you figure out a good method of coiling/uncoiling the wire (more $$$). My problem too is some of the places I'd like to go QRV are on tops of hills and mountains where good trees aren't available so my wire ant. wouldn't work there, unless I had my own support somehow. The only drawback I can see with the buddipole is that, because it's intended as a resonant system, you'd need to retune it by moving the clips when you change bands. With the wire, the tuner just takes care of that. But to be honest, I havn't been able to come up with a significantly better/cheaper solution myself for portable that does the same thing. I can go cheaper, but it's bulkier and heavier. Otherwise, it costs about as much hi hi. So I'm considering one too and may even use it in my apt. when I'm not /p. My indoor wire solution works moderately well for receive, but is not great for transmit 73, LS W5QD -- View this message in context: http://n2.nabble.com/Using-Buddi-Pole-Deluxe-Antenna-with-K3-tp4867678p4870948.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] K3: latest Prolific drivers for the KUSB
Windows 7 64 bit at my place was an issue, replete with BSOD if things not started up in correct order. New drivers fixed it. YMMV No knowing how many other things were actually involved. Many use the old drivers without problem on their existing boxes. I started over brand new OS, high end quad core, lots of fast memory, knowing the price I would pay. : ) 73, Guy. On Thu, Apr 8, 2010 at 8:11 AM, Dick Dievendorff die...@comcast.net wrote: I think some users were having trouble with applications like N1MM. There's was a Prolific driver issue with the MSCOMMCTL32.ocx (I think that's right) that VB apps use that was fixed in this most recent version. As a matter of general practice I have to try/use the most recent drivers and learn what's up with them because usually our customers can install the most recent but rarely are they able to get an n-1 version from the vendor. I'll ask Eric/Brian to update the Elecraft web site versions. 73 de Dick, K6KR From: Chris M0PSK [mailto:chrism0...@googlemail.com] Sent: Thursday, April 08, 2010 2:22 AM To: Elecraft Reflector; Dick Dievendorff Subject: K3: latest Prolific drivers for the KUSB Dick: In a recent posting you provided a link for the latest Prolific PL-2303 USB-to-serial drivers for the KUSB cable. Is there anything to be gained by installing the the most recent version, rather than sticking with the version provided by the link on the Elecraft website? 73 Chris, M0PSK __ 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] Using Buddi Pole Deluxe Antenna with K3
I have a basic problem with shortened low antennas. They are a handicap. I remember one article in CQ where one fellow went to the beach with a 0.25 W QRP rig and a budipole. He made no QSO's but had fun anyhow. So it may all depend upon your expectations. If you want to try and make a few QSO's with say 100W and such and antenna, then you probably won't be disappointed. However, if you into DXing and even QRP contesting, don't bother. On the other hand, if you're going someplace for portable operation, why not select a place where you can put up a high near full sized antenna? 73 de Brian/K3KO Jay Sissom wrote: I've found that the Buddipole is very flexible and you can configure it in many ways. I think this is what causes some people to not like the antenna. There isn't just one way to do it. I like it because you can play with it and try out different configurations to see what works for you. I have used the Buddipole with wire. I put the Buddipole together without the whips and instead of the whips I used a wire to make a longer inverted-V. It worked fine on 40m and 20m without changing the taps (using the ATU of course). I didn't try it on other bands. If you like playing with antennas outside, it is a good kit. At home, I have a 20m - 6m vertical but nothing for 40m. When it is nice outside, I setup the Buddipole for 40m on my deck and operate from inside where it is either warmer or colder (depending on the season) and without the bugs. 73 Jay __ 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: latest Prolific drivers for the KUSB
Generally, no, unless you're having a specific problem with it it's best to leave it be. The hazard of upgrading is breaking a previously working configuration - i.e. the old bugs get replaced with new bugs. This is particularly true of Windows because it's such a nightmarish and expensive platform to develop for - both the API/ABIs and the dev tools are extensively changed from version to version in both gross and subtle ways. It takes a very adept developer to keep track of the changes - he or she has to be rich too because of the cost of endlessly having to buy the dev tools over and over again. .NET levels this a little bit, but even there you find wholesale changes that can really take some digging to find and can really make life tough on you (i.e. the way asynchronous handling of the standard streams for Process objects was pretty much redone in .NET 2.0 and on and on). For good designs like MacOS X, this isn't as big of a deal, but even there you want to exercise some conservatism (i.e. the wierdness with the recent 64 bit prolific driver release). My mottos are: If it ain't broke, that don't necessarily mean it ain't broke. But if it truly ain't broke, don't fix it. 73, LS W5QD -- View this message in context: http://n2.nabble.com/K3-latest-Prolific-drivers-for-the-KUSB-tp4870058p4871555.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] Using Buddi Pole Deluxe Antenna with K3
On Thu, 08 Apr 2010 14:17:46 +, Brian Alsop wrote: I have a basic problem with shortened low antennas. They are a handicap. YES! VERY poor efficiency and bandwidth. There are many simple alternatives. a #20 wire thrown over a tree is one. Another is a really neat telescoping fiberglass pole developed by Walter, DK9SQ, and sold online for a very reasoanble sum. It extends to 10M, but collapses to a bit over 1M, and comes with a nice carrying tube. Tie that #20 wire to the pole, figure out a way to prop it up (or even halfway up), lay a few radials out, and you've got a GOOD antenna. By playing with wire lengths, you can easily load it and make it work well on 40, 30, 20, and 17. I've also seen stakes designed to hold it vertical. Google on his call to find it. Several years ago, I used exactly that rig for the QRP night of the Chicago club I was a member of, and had a lot of fun with my K2 and a battery. Made a half dozen nice Qs on 30M in under an hour, even busting a pileup for a Caribbean expedition! 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] Using Buddi Pole Deluxe Antenna with K3
Antennas are a magical gray world of what makes everyone happy, but they all work a certain scientific way that we cannot change. The Buddipole, being a shortened and offset feed antenna, is going to have a whole lot of feedline radiation and common mode back to the rig. It would take extraordinary efforts to stop the common mode. This does not mean we would always NOTICE the common mode, it just means it would be there. Many times this common mode is how very small antennas get most of their radiation. Some people will love them, some will hate them, mostly because of the things we don't even realize are affecting the performance. The proper way to tune one is to tune the antenna for lowest SWR with the tuner off at the desired frequency, and then use the tuner for touch-up only. 73 Tom __ 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] Using Buddi Pole Deluxe Antenna with K3
I could take your first sentence and say: I have a basic problem with QRP power. It is a handicap. You probably missed in my first message where I said that we know that a Buddipole won't compete with a full size dipole. I'm sorry you don't approve of how we enjoy our hobby. 73 Jay W9IUF On Thu, Apr 8, 2010 at 10:17 AM, Brian Alsop als...@nc.rr.com wrote: I have a basic problem with shortened low antennas. They are a handicap. I remember one article in CQ where one fellow went to the beach with a 0.25 W QRP rig and a budipole. He made no QSO's but had fun anyhow. So it may all depend upon your expectations. If you want to try and make a few QSO's with say 100W and such and antenna, then you probably won't be disappointed. However, if you into DXing and even QRP contesting, don't bother. On the other hand, if you're going someplace for portable operation, why not select a place where you can put up a high near full sized antenna? 73 de Brian/K3KO Jay Sissom wrote: I've found that the Buddipole is very flexible and you can configure it in many ways. I think this is what causes some people to not like the antenna. There isn't just one way to do it. I like it because you can play with it and try out different configurations to see what works for you. I have used the Buddipole with wire. I put the Buddipole together without the whips and instead of the whips I used a wire to make a longer inverted-V. It worked fine on 40m and 20m without changing the taps (using the ATU of course). I didn't try it on other bands. If you like playing with antennas outside, it is a good kit. At home, I have a 20m - 6m vertical but nothing for 40m. When it is nice outside, I setup the Buddipole for 40m on my deck and operate from inside where it is either warmer or colder (depending on the season) and without the bugs. 73 Jay __ 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] Using Buddi Pole Deluxe Antenna with K3
I agree with Tom on this. My simple solution is a length of wire, center fed with light weight TV 300 ohm line which is terminated into a 1:1 current balun at the radio. Put it up in any fashion, any height and enjoy everything from 160M - 6M as long as the internal tuner will handle the task. It will work very efficiently on any frequency where the length is 1/2 wave or more and with some compromise on those frequencies where it is less than 1/2 wavelength. Overall the costs is less than $50 and can be packed and transported very easily. From experience it makes no difference if it is 5 ft above ground tied between bushes or at 50 ft. The performance and enjoyment is the same. And it is certainly much less problematic than those that use coils and mechanical parts and lighter weight too. 73 Bob, K4TAX - Original Message - From: Tom W8JI w...@w8ji.com To: Elecraft@mailman.qth.net Sent: Thursday, April 08, 2010 10:17 AM Subject: Re: [Elecraft] Using Buddi Pole Deluxe Antenna with K3 Antennas are a magical gray world of what makes everyone happy, but they all work a certain scientific way that we cannot change. The Buddipole, being a shortened and offset feed antenna, is going to have a whole lot of feedline radiation and common mode back to the rig. It would take extraordinary efforts to stop the common mode. This does not mean we would always NOTICE the common mode, it just means it would be there. Many times this common mode is how very small antennas get most of their radiation. Some people will love them, some will hate them, mostly because of the things we don't even realize are affecting the performance. The proper way to tune one is to tune the antenna for lowest SWR with the tuner off at the desired frequency, and then use the tuner for touch-up only. 73 Tom __ 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] WANTED - KXPD1 paddle
I am looking for a KXPD1 paddle for my KX1. If you have a KXPD1 that you'd be willing to sell, please contact me off list with your price. Tnx... Ken WA4SQM kredwa...@gmail.com -- View this message in context: http://n2.nabble.com/WANTED-KXPD1-paddle-tp4871883p4871883.html Sent from the [KX1] 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] QRP, Portable, and Compromise Antennas
I have already experimented with this particular setup and sometime later this year I will try it out for real. On both the Washington coast and the Oregon coast there are beaches that allow cars out on the sand. This is easy to drive as the beaches are flat, firm, damp sand where the water is still 250 feet away on average. I have driven my pickup out there many times at Ocean Shores, Washington and Cannon Beach, Oregon. My next trip to Cannon Beach this summer (during the Seapac hamfest) I will set up a 1/2 wave 20 meter dipole. I have a 35 foot long fiberglass telescoping pole that I stick in one of the stake holes of my pickup truck. Then, with the center of my dipole attached to the top and coax already connected I extend the pole up to its full 35 foot length which puts the top of the dipole at 40 feet. This can be done only when there is no wind as the top is not very stable as I have already discovered. The ends of the dipole, sort of a inverted-V dipole, are connected to 6 foot long poles I pound into the sand a little bit, just enough for a stable anchor. They are farther out then the length of each dipole leg since I will have dacron line for about 10 feet which keeps the dipole ends off the ground a bit. I have experimented with this configuration here on my property but have not yet tried it out for real on the coast but I think this will work very nicely for QRP activity (although, I will also be able to operate 100 watts with my K3 too). 73, phil, K7PEH __ 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)
FS K3 version of LP-PAN with E-MU0202. Reply off list _k0...@aol.com_ (mailto:k0...@aol.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] Prolific drivers and Mac OS
I am using an iMac 2.66ghz with 10.6.3 (64 bit Snow Leopard w/latest updates) and MacLoggerDX with my K3. I have a cheap USB to serial cable purchased on eBay for US6.50, and free shipping. It utilizes the Prolific chipset. Seller was Sureelectronics. I recently purchased a new one to replace a version that was 2 years old. I had a thumbscrew break off during a shack reorganization (my fault). They are not always iinline, and care is need when connecting to the K3. I would not recommend these if you are removing the cable often. From a software point of view, there have been no problems. I run the communications at 19.2kb. YMMV Randy K6CRC k6...@arrl.net K3 s/n 2051 On Apr 8, 2010, at 9:00 AM, elecraft-requ...@mailman.qth.net wrote: After having numerous issues with drivers and listening to suggestions on website, I found two of my cheapies failed! They weren't that old but the chips headed to the poles. I stepped up to the plate and bought new brand name chips, the Elecraft with with the prolific chip, and a Keyspan which is to me the best device out there. Good luck. Bill K9YEQ K2 and KX1 field tester, K3 and modules -Original Message- Subject: Re: [Elecraft] 64 bit prolific driver for Snow Leopard Interesting doesn't load at all for me on my Macbook Pro (10.6.3) in either 32 or 64 bit mode. The original driver off Sourceforge (0.3.1, 10.4 Universal) works fine tho. Could be my adapter, a Bill-n-Ted's Excellent USB-RS232 from BestBuy. But I'd think it'd be the same chipset and should work... Not a big deal to me since I only care if it works at all hi hi. But if anyone else notices this or if there's some other trick needed to get this one to work, post it here and I'll have a go. __ 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] QRP, Portable, and Compromise Antennas
Phil Hystad-3 wrote: I have a 35 foot long fiberglass telescoping pole that I stick in one of the stake holes of my pickup truck. Then, with the center of my dipole attached to the top and coax already connected I extend the pole up to its full 35 foot length which puts the top of the dipole at 40 feet. This can be done only when there is no wind as the top is not very stable as I have already discovered. The ends of the dipole, sort of a inverted-V dipole, are connected to 6 foot long poles I pound into the sand a little bit, just enough for a stable anchor. IMO you'd do far better configuring your antenna as a vertical dipole over salt water. http://pages.prodigy.net/k2kw/dxcomp.htm http://www.elecraft.com/DXpeditions/QRP_is.pdf http://pages.prodigy.net/k2kw/learning.html 73, Bill -- View this message in context: http://n2.nabble.com/QRP-Portable-and-Compromise-Antennas-tp4872023p4873137.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] K3 KXV3-RXA Mod
Hello, On my old KXV3 I installed a small PCB with sticky tape. It was an original Elecraft mod. As far as I know this mod was installed to improve isolation of the receive antenna on the original KXV3 board. Now I'm installing the KXV3A board I have the next question: Do I have to install this RXA mod pcb on the new KXV3A board? 73's, Evert PA2KW __ 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 VFO / Encoder Problem
I have in my possession a K2 that has developed a fault with the encoder. When trying to tune the radio, rotating the encoder results in just the last digit displayed flickering back and forth. At first I thought the Optical encoder had failed and so ordered a replacement from Elecraft which arrived yesterday. Today I installed the new Encoder only to find that the problem still persists. I have checked and confirmed there is a 5Volt supply on pin1 of the encoder, pins 2 and 3 fluctuate between 5Volt and 0.1Volt when the encoder is advanced or retarded. Pin 4 appears to remain at 0.1Volt. In the voltage charts at the back of the manual Pin 4 is connected to pin 14 of U3, this according to the charts should be about 3.1Volt. Obviously the encoder is not at fault, unless I've been un-lucky enough to have received another duff one. Any advise on where I should be looking now. Could it be possible that U3 has failed as some of the pin voltages for this IC do not correspond to those listed at the back of the manual. Many Thanks in Advance. Nidge (G0NIG) IO93dv __ 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 KXV3-RXA Mod
Evert, It has been incorporated into the board. Your mod PCB will not be needed. 73, Don W3FPR Evert Bakker (PA2KW) wrote: Do I have to install this RXA mod pcb on the new KXV3A board? __ 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 VFO / Encoder Problem
Nidge, It is difficult to predice the exact voltage levels that will be present in digital signals at any particular time. That may be why the U3 redings may be off from what is listed in the manual. Check by comparison instead. Compare the voltage at FP U3 pin 14 with the voltage your meter reads at pins 7 and 15 - they should be similar. If they are not, then it is likely that U3 has a damaged output at pin 14. Additionally, check to be certain the signal at encoder pin 2 is making it to CB U6 pin 8 and the signal at encoder pin 3 makes it to CB U6 pin 16 73, Don W3FPR Nigel (Nidge) Smith wrote: I have in my possession a K2 that has developed a fault with the encoder. When trying to tune the radio, rotating the encoder results in just the last digit displayed flickering back and forth. At first I thought the Optical encoder had failed and so ordered a replacement from Elecraft which arrived yesterday. Today I installed the new Encoder only to find that the problem still persists. I have checked and confirmed there is a 5Volt supply on pin1 of the encoder, pins 2 and 3 fluctuate between 5Volt and 0.1Volt when the encoder is advanced or retarded. Pin 4 appears to remain at 0.1Volt. In the voltage charts at the back of the manual Pin 4 is connected to pin 14 of U3, this according to the charts should be about 3.1Volt. __ 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 VFO / Encoder Problem
Hi Don, Many thanks for the quick reply. So far the readings I get on U3 are as follows: Pin 14 = 0.1V and 0.133V when the encoder is rotated. Pin 15 = 4.12, which varies when the encoder is rotated. Pin 7 = 3.4V with slight variation when the encoder is rotated. So from the above would you say it's safe to assume that U3 has a damaged output on pin 14? Again thanks very much for taking the time to reply. Regards Nidge (G0NIG) IO93dv - Original Message - From: Don Wilhelm w3...@embarqmail.com To: Nigel (Nidge) Smith nig_sm...@o2.co.uk Cc: elecraft@mailman.qth.net Sent: Thursday, April 08, 2010 9:17 PM Subject: Re: [Elecraft] K2 VFO / Encoder Problem Nidge, It is difficult to predice the exact voltage levels that will be present in digital signals at any particular time. That may be why the U3 redings may be off from what is listed in the manual. Check by comparison instead. Compare the voltage at FP U3 pin 14 with the voltage your meter reads at pins 7 and 15 - they should be similar. If they are not, then it is likely that U3 has a damaged output at pin 14. Additionally, check to be certain the signal at encoder pin 2 is making it to CB U6 pin 8 and the signal at encoder pin 3 makes it to CB U6 pin 16 73, Don W3FPR Nigel (Nidge) Smith wrote: I have in my possession a K2 that has developed a fault with the encoder. When trying to tune the radio, rotating the encoder results in just the last digit displayed flickering back and forth. At first I thought the Optical encoder had failed and so ordered a replacement from Elecraft which arrived yesterday. Today I installed the new Encoder only to find that the problem still persists. I have checked and confirmed there is a 5Volt supply on pin1 of the encoder, pins 2 and 3 fluctuate between 5Volt and 0.1Volt when the encoder is advanced or retarded. Pin 4 appears to remain at 0.1Volt. In the voltage charts at the back of the manual Pin 4 is connected to pin 14 of U3, this according to the charts should be about 3.1Volt. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2797 - Release Date: 04/07/10 19:32:00 __ 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 VFO / Encoder Problem
Nidge, Yes, from that I would surmise that U3 pin 14 is damaged - however, check the ENC A and ENC B lines for continuity to the microprocessor just to be sure there is nothing wrong there. 73, Don W3FPR Nigel (Nidge) Smith wrote: Hi Don, Many thanks for the quick reply. So far the readings I get on U3 are as follows: Pin 14 = 0.1V and 0.133V when the encoder is rotated. Pin 15 = 4.12, which varies when the encoder is rotated. Pin 7 = 3.4V with slight variation when the encoder is rotated. So from the above would you say it's safe to assume that U3 has a damaged output on pin 14? Again thanks very much for taking the time to reply. Regards Nidge (G0NIG) __ 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] voltage drop
anybody know what size power supply wire is supplied with the K3? __ 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 VFO / Encoder Problem
Thanks Don and Gary. Have checked for bad joints and none found. I've also checked for continuity between the EncA and B to the main processor and they are good. The radio wasn't built by me but it had another fault which I sorted. Unfortunately during the first repair process I dislodged a screw that had been dropped between the displayboard and control board by a previous user and I think that's what more than likely has taken out U3. I may have a replacement in my spares box somewhere if not it will have to be ordered. Now getting very late here and I have a 5am start so will search later tomorrow. Many thanks to you both for replying. Regards Nidge (G0NIG) IO93dv - Original Message - From: Don Wilhelm w3...@embarqmail.com To: Nigel (Nidge) Smith nig_sm...@o2.co.uk Cc: d...@w3fpr.com; elecraft@mailman.qth.net Sent: Thursday, April 08, 2010 9:52 PM Subject: Re: [Elecraft] K2 VFO / Encoder Problem Nidge, Yes, from that I would surmise that U3 pin 14 is damaged - however, check the ENC A and ENC B lines for continuity to the microprocessor just to be sure there is nothing wrong there. 73, Don W3FPR Nigel (Nidge) Smith wrote: Hi Don, Many thanks for the quick reply. So far the readings I get on U3 are as follows: Pin 14 = 0.1V and 0.133V when the encoder is rotated. Pin 15 = 4.12, which varies when the encoder is rotated. Pin 7 = 3.4V with slight variation when the encoder is rotated. So from the above would you say it's safe to assume that U3 has a damaged output on pin 14? Again thanks very much for taking the time to reply. Regards Nidge (G0NIG) No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2797 - Release Date: 04/07/10 19:32:00 __ 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- 60 m band - 5 Mhz
Hello Group, It is off-topic. I understand that there is 60m channels in USA. Could any of you advise what is the rationale behind of 60m band allocation? Is there any propagation advantage or ARES requirements related to 60m band allocation? Could you please direct me to the right web-link for my further reference? There is NO 60m channels allocation in Hong Kong. Thank you for your help in advance. 73 Johnny VR2XMC __ 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- 60 m band - 5 Mhz
Johnny - I can give you some general ideas about the why of the 60 meter band in the USA. First, the allocation was granted in response to a petition requesting a new band in the 5 MHz range. The primary justification offered was that the propagation characteristics of the 60 meter band would be expected to be useful when either the 75 meter band or the 40 meter band was not optimum for the traffic to be passed. The increased flexibility would be useful in time of emergency. The FCC agreed that this was a valid reason for the allocation. Second, the band was channelized to 5 discrete spots, as opposed to the anywhere in the band method used for all other bands. Because the band is available on a shared basis, and the amateur service is not the primary user, the FCC stated that the use of discrete channels was the only way they could guarantee that interference to other users would be as low as possible. Apparently, the sharing of frequencies on the 30 meter band (another band where amateur radio is a secondary user) had generated some complaints. I don't know how true this is, perhaps it is just a rumor. But, in any case, the 60 meter band ended up as a discrete channel operation. There have been occasional reports that the FCC is considering opening up the band to other modes. As things stand now, 60 meters is the only USA allocated HF band where CW operation is prohibited. In fact, the only mode permitted is USB voice, which is somewhat at odds with normal amateur practice, where all bands below 7.3 MHz use LSB for SSB operation. Perhaps someday we will see other modes, VFO operation, and even a somewhat expanded frequency allocation, but there is no way to know if this will ever happen. Another quirk is the power limitation, 50 watts PEP maximum ERP, an unusual requirement to be sure. This is possibly another accommodation to the primary users of the band. The power limitations have proven problematical for some who attempt to use the band, as higher power levels are often useful when attempting to overcome the effects of poor propagation. All these things together have operated to make the 60 meter band rather less used than some had originally expected. I suspect that when and if the rules are relaxed a bit, we will see more use. Jim, KL7CC Johnny Siu wrote: Hello Group, It is off-topic. I understand that there is 60m channels in USA. Could any of you advise what is the rationale behind of 60m band allocation? Is there any propagation advantage or ARES requirements related to 60m band allocation? Could you please direct me to the right web-link for my further reference? There is NO 60m channels allocation in Hong Kong. Thank you for your help in advance. 73 Johnny VR2XMC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT- 60 m band - 5 Mhz
Here's the link: http://www.60meters.net/ And here's the frequenices. Channel Nominal Tuning Frequency (carrier) 1 5332kHz 5330.5kHz 2 5348kHz 5346.5kHz 3 5368kHz 5366.5kHz 4 5373kHz 5371.5kHz 5 5405kHz 5403.5kHz (common US/UK) 73 Bob, K4TAX - Original Message - From: Johnny Siu vr2...@yahoo.com.hk To: Elecraft elecraft@mailman.qth.net Sent: Thursday, April 08, 2010 6:09 PM Subject: [Elecraft] OT- 60 m band - 5 Mhz Hello Group, It is off-topic. I understand that there is 60m channels in USA. Could any of you advise what is the rationale behind of 60m band allocation? Is there any propagation advantage or ARES requirements related to 60m band allocation? Could you please direct me to the right web-link for my further reference? There is NO 60m channels allocation in Hong Kong. Thank you for your help in advance. 73 Johnny VR2XMC __ 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] QRP, Portable, and Compromise Antennas
Bill, I would say I am way ahead of you but I am ahead of you but maybe not. I am also considering buying a vertical antenna and mounting it (a temporary easy to put up portable mount) on my truck (maybe a stake hole or something else I fashion together). So, this would not be a dipole but I was thinking of laying out some ground plane wires too. Again, I need time to experiment with this. PEH On Apr 8, 2010, at 12:07 PM, Bill W4ZV wrote: Phil Hystad-3 wrote: I have a 35 foot long fiberglass telescoping pole that I stick in one of the stake holes of my pickup truck. Then, with the center of my dipole attached to the top and coax already connected I extend the pole up to its full 35 foot length which puts the top of the dipole at 40 feet. This can be done only when there is no wind as the top is not very stable as I have already discovered. The ends of the dipole, sort of a inverted-V dipole, are connected to 6 foot long poles I pound into the sand a little bit, just enough for a stable anchor. IMO you'd do far better configuring your antenna as a vertical dipole over salt water. http://pages.prodigy.net/k2kw/dxcomp.htm http://www.elecraft.com/DXpeditions/QRP_is.pdf http://pages.prodigy.net/k2kw/learning.html 73, Bill -- View this message in context: http://n2.nabble.com/QRP-Portable-and-Compromise-Antennas-tp4872023p4873137.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
[Elecraft] K2 dead
Before supper was working. Left on and went to supper. Came back from supper and no display but power is on. No sig heard. Turn power switch off. When I turn it back on no display and loud hum in headphones. Then I hear some motor boating and headphones go dead. Check input voltage. SW off 13 VDC, SW on 4 VDC. Check cable and it is OK. Try another power supply and cable. Same thing happens. Now what? Help Geo/W2BPI __ 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 KXV3-RXA Mod
weelll I got the new 'a' version AND installed the sticky tape mod is that a problem? thanks 73 John VE3NFK -- View this message in context: http://n2.nabble.com/K3-KXV3-RXA-Mod-tp4873179p4874835.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] K2 dead
Geo, First step -- Take the top cover (or KPA100) off and measure the resistance between the collectors of Q7 and Q8 to ground. What is the serial number of this K2? Alternately, how old is it. My first suspicion is that the PA transistors have gone bad (shorted), but your resistance measurement will confirm or deny that. 73, Don W3FPR w2b...@aol.com wrote: Before supper was working. Left on and went to supper. Came back from supper and no display but power is on. No sig heard. Turn power switch off. When I turn it back on no display and loud hum in headphones. Then I hear some motor boating and headphones go dead. Check input voltage. SW off 13 VDC, SW on 4 VDC. Check cable and it is OK. Try another power supply and cable. Same thing happens. Now what? Help Geo/W2BPI __ 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 KXV3-RXA Mod
John, I guess you have double protection :-) . Actually I don't think that is a benefit, and may be a deficit, so I would remove the 'sticky tape mod'. 73, Don W3FPR VE3NFK wrote: weelll I got the new 'a' version AND installed the sticky tape mod is that a problem? thanks 73 John VE3NFK __ 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
