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My new KX3 is due to arrive on Monday -- with the KXAT3 tuner.
I saw some discussion of wire lengths that worked well with the tuner, and of course, now I can't find it. I plan on mostly portable operation -- no place where I live for a nice antenna (and probably hard to get the OK from management). Anyone have any practical experience to share? 73 -- Lynn, WB6UUT P.S. Hi Lyle ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Buddipole is a good antenna but somewhat heavy and not quick to set up
and tune. With the ATU, you can generally set it to a "recipe" and let the tuner take care of the rest. I found verticals worked best, all the horizontal configurations [arms up, out, up and down, V, whatever] are basically an OCF loaded dipole. I had and used one for a number of years, pretty satisfied. I sold my BP and bought an AlexLoop. Very much lighter and smaller, sets up much much faster, much easier to QSY, and works as well or maybe a little better than the BP. A little pricey as is the BP, you can HB the loop pretty easily. Many of the SOTA crowd use end-fed half-wave wires ... no ground or counterpoise required. Of course, they are generally doing this on mountain tops which helps, but they are universally QRP or close to it. I've used a 27' end-fed wire with my K2 and KX1. The ATU loads it fine on 30 thru 10, it isn't real effective on 20 and below as you might imagine from the short length. Antennas are the last bastion of ham experimentation, try things out once you're making RF from the KX3. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 3/8/2013 7:16 PM, Lynn W. Taylor, WB6UUT wrote: > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > I saw some discussion of wire lengths that worked well with the tuner, > and of course, now I can't find it. > > I plan on mostly portable operation -- no place where I live for a nice > antenna (and probably hard to get the OK from management). > > Anyone have any practical experience to share? > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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 message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 2641/6154 - Release Date: 03/07/13 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
I have an MP-1 Super Antenna and an Par Endfed 10-20-40 which I use with my new KX3.
I use the MP-1 from my condo balcony, usually at 10-12w, but my favorite is the Par Endfed in the field at 5w. I have a 32ft fiberglass push up pole which I attach to whatever I can find with bungy cords. I feed the endfed antenna near the top and then run it out to a convenient attachment. There is a youtube video which shows a simple way to do this. I have even operated from the condo roof very successfully. Deployment takes about 10-15 minutes and it provides excellent ears for the KX3 Paul AF5BV On Mar 8, 2013, at 9:16 PM, Lynn W. Taylor, WB6UUT wrote: > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > I saw some discussion of wire lengths that worked well with the tuner, and of course, now I can't find it. > > I plan on mostly portable operation -- no place where I live for a nice antenna (and probably hard to get the OK from management). > > Anyone have any practical experience to share? > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by k6dgw
I was thinking of wire antennas to get started.
I chose the tuner over a solution like the Buddipole with that in mind. I'd put the KX3 in the car, but I like digital modes, but I don't want to see if the CHP would consider PSK-31 to be "texting." On 3/8/2013 7:33 PM, Fred Jensen wrote: > Many of the SOTA crowd use end-fed half-wave wires ... no ground or > counterpoise required. Of course, they are generally doing this on > mountain tops which helps, but they are universally QRP or close to it. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Hi Lynn, The answer may depend a lot on what bands you want to operate on. I think the KX3 tuner is rather wide range. You might look over the online manuals for the other rigs for suggested antenna lengths. I think I have seen 51 feet can be a good length. Avoid a half wave on the band of interest. And you will need some ground system, radial wire(s) or a car body often being used. 73 - Mike WA8BXN -------Original Message------- From: Lynn W. Taylor, WB6UUT Date: 3/8/2013 10:16:18 PM To: [hidden email] Subject: [Elecraft] [KX3] Portable Antenna question My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. I saw some discussion of wire lengths that worked well with the tuner, and of course, now I can't find it. I plan on mostly portable operation -- no place where I live for a nice antenna (and probably hard to get the OK from management). Anyone have any practical experience to share? 73 -- Lynn, WB6UUT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Not sure if the ATU will match an EFHW, impedance is very high. But a
6:1 transformer may get it into matchable range for you. In CA, "ham radio" operation is exempted from the cell phone law [that doesn't make fooling with the radio any less dangerous :-)], don't know about digital modes ... doesn't sound safe to me. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 3/8/2013 7:51 PM, Lynn W. Taylor, WB6UUT wrote: > I was thinking of wire antennas to get started. > > I chose the tuner over a solution like the Buddipole with that in mind. > > I'd put the KX3 in the car, but I like digital modes, but I don't want > to see if the CHP would consider PSK-31 to be "texting." > > On 3/8/2013 7:33 PM, Fred Jensen wrote: >> Many of the SOTA crowd use end-fed half-wave wires ... no ground or >> counterpoise required. Of course, they are generally doing this on >> mountain tops which helps, but they are universally QRP or close to it. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Mike WA8BXN
On 3/8/2013 7:52 PM, Mike WA8BXN wrote:
> The answer may depend a lot on what bands you want to operate on. It also depends on where you will go to operate and how you will get there. My neighbor Glen, W6GJB, travels every month or so on business, and likes to operate from his hotel room. He and I have also driven t to mountain tops, and some folks like to hike and climb. Glen has accumulated a nice collection of telescoping rods of varying extended length and collapsed length, and several ways to hold them in place -- things like tripods, clamps, etc. He also has several lengths of small diameter wire that he can spool and unspool to be radials, a counterpoise, or a long wire out the window or into a tree, and he's developed some neat ways to quickly rig and attach them. One of his objectives is to be able to carry it onto an airplane, a second is to fit it in checked luggage. I think all of his ideas are good ones, and NONE of them involve loading coils. Loading coils are lossy, and the last thing we need when running QRP is loss. Glen first objective is to make his radiator a quarter wave, and it's pretty practical to do that with these collapsible wands for 20-10M. 30M and 40M are tougher, but possible. There's a neat black fibreglass telescoping wand (distributed by a German ham) that extends to 33 ft long. Tape the right length of #22 wire to it and you've got a full size 30M or 40M vertical! MFJ makes some wands and tripods. You have to poke around to find the other stuff. The message here is the the KX3 is a radio, and the antennas that work well with it are the same that work with any radio. The old standby fundamental types of antennas are still the winners - long wires, verticals, some sort of counterpoise. Avoid driven elements close to a half wave length because their high Z makes them hard to load. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Of course -- and experimenting is half the fun. I expect to go through
a lot of wire playing. I'm pretty good with the theory -- and as everyone has said, it makes sense to avoid feeding the end of a half-wave wire. I haven't yet found the impedance range for the tuner in the manuals. I'm still reading. I also moved not too long ago, and a lot of things (like my antenna book) are in a box somewhere. I'm still searching. I think my Par EF-20 is in one of those boxes, as is a nice chunk of coax with a BNC on one end, and a PL-259 on the other. I did find my straight key, but I haven't been on CW this millenium. ... and I've got 100' of Wireman #534 due to arrive tomorrow. I can always buy more. -- Lynn On 3/8/2013 8:29 PM, Jim Brown wrote: > The message here is the the KX3 is a radio, and the antennas that work > well with it are the same that work with any radio. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On 3/8/2013 8:51 PM, Lynn W. Taylor, WB6UUT wrote:
> I haven't yet found the impedance range for the tuner in the manuals. Elecraft has been building antenna tuners for a decade or so, their target has always been backpacking, and they are great tuners. As long as you don't get within about 10% of a half wavelength, it will load just fine. If you don't have a tuner, you'll want to get within 5-10% of a quarter wave. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
On 3/8/2013 10:30 PM, Ron D'Eau Claire wrote:
> The problem is that very large RF voltage are developed at the end of such a > wire - well beyond what any compact or semi-compact tuner that doesn't use > big air variable caps can handle. So we compromise. Exactly. One specification (efficiency or SWR) alone does no define success. The TX must put power into it, and loads close to a half wave are very difficult for a tuner to match. Like I said -- avoid antennas within 10% or so of a half wave. Beyond that, get as close to a quarter wave with a decent counterpoise and call CQ. This summer, W6GJB and I put a quarter wave whip on a tripod on a mountataintop threw a quarter wave of wire into some scrub trees, and connected it to his KX3. In about 10 minutes on 15M, we had worked AS, SA, and the Carribbean,. And if there had been skip to EU and VK, we would have worked them too. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Lynn
I posted this same question here and to a QRP Club I belong to sometime back and received well over a 100 emails both on and off both reflectors. Many ideas and some of my own derived from other designs that I adapted I will give you 3 offhand in just a moment. You spoke of a possible install in your car, if I might tell you what a friend in CA. found after 3 mo of trying to get his KX3 and a 300w mobile amp of some kind he had at the same time to go with it. He bought a mobile mount ran all the wiring installed a Screwdriver antenna. After all that work was and numerous calls to Elecraft and the radio sent for a mod of some kind then a month of trying to get it to work still no joy. He sent it back to Elecraft to have the mod removed and a new LCD display cover installed because the other was scratched during all the in and outs. When returned he sold it as he's not a QRP op that's a shame. Antennas the one piece of equipment that I use for about everything as I'm not a hiker and have limited mobility I drive to where I operate. But that piece of gear is light weight it's a 31' fiberglass telescoping windsock pole that has an eyelet on the top about 3 1/2" in dia. by 4' when collapsed and weighs about 6#?? I have several other items that I use with this 2 5 gal plastic buckets like oil comes in to support the pole one can be filled with rocks etc for weight the other is filled with concrete with a 4" ID pipe in the center of it both will need a couple of guys on windy days. The other is a steel plate that I can pull one tire on with a 4" ID pipe 30" tall that hold the pole and lets the SUV serve as somewhat of a ground plane. I use a Par end fed 10/20/40 for one of them my second is a 31' vertical with several counterpoise's that I have on rolls 6 of them 33' each. The last one (s) are simple but the most effective single band made from 300ohm twin lead I have 5 of them cut and rolled 10/15/17/20/40m. These can be setup as an Inverted V or a flattop dipole if you have other supports I have a few small insulators and Dacron rope for guying and the supports. These are the most effective with my KX3 because they allow all the power of the radio to the antenna using the duel binding post BNC adapter. They don't take up much room and are in the bottom of my Pelican case with all I carry. it is a med size one for the KX3 plus I have a 250' roll of 18ga wire that I take along just in case I need some. I have not used all of these away from the house but have used them in the back yard and they work well and all tune easily with the KX3's tuner. I had always thought that my Icom 703+ had a good internal in it till Elecraft came along, as with other things. Get ready to have a lot of fun with your KX3 BTW I am now using mine for SWL a lot of the time where I was using my K3 before. 73, Fred/N0AZZ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Lynn W. Taylor, WB6UUT Sent: Friday, March 08, 2013 10:52 PM To: [hidden email] Subject: Re: [Elecraft] [KX3] Portable Antenna question Of course -- and experimenting is half the fun. I expect to go through a lot of wire playing. I'm pretty good with the theory -- and as everyone has said, it makes sense to avoid feeding the end of a half-wave wire. I haven't yet found the impedance range for the tuner in the manuals. I'm still reading. I also moved not too long ago, and a lot of things (like my antenna book) are in a box somewhere. I'm still searching. I think my Par EF-20 is in one of those boxes, as is a nice chunk of coax with a BNC on one end, and a PL-259 on the other. I did find my straight key, but I haven't been on CW this millenium. ... and I've got 100' of Wireman #534 due to arrive tomorrow. I can always buy more. -- Lynn On 3/8/2013 8:29 PM, Jim Brown wrote: > The message here is the the KX3 is a radio, and the antennas that work > well with it are the same that work with any radio. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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 message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 2641/6157 - Release Date: 03/08/13 ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 2641/6157 - Release Date: 03/08/13 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Lynn :
If you are looking for an end-fed wire length that is easy to match from 80m through 10m I would suggest you try something in the 84 to 86 ft range. This can be small gauge wire (i.e. 22 to 26 AWG) and plastic camping clothesline reels work well to store this length. The Wire Man sells something called "Invisible Toughcoat Slinky" ( #534) that is perfect for this type of antenna. http://thewireman.com/antennap.html You can work this against a few ground radials (I suggest 4+, about 1/8 wavelength long at your lowest operating frequency). Another option is to use an elevated 16 ft wire for the other half of the antenna (Google W3EDP). This 84 to 86 ft length is one of the "magical lengths" that is not close to a half wave multiple on any of the amateur bands (with perhaps the exception of 10m) so it presents a reasonable impedance to your tuner across the HF spectrum. If you don't care about 80 and want to go with something shorter try a 28 ft wire. It should easily match on 40m through 20m without any issues. Best of luck Michael VE3WMB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Thanks everyone!
I was hoping for some good practical "getting started" experience, and you gave me some great suggestions. Several mentioned Wireman #534 -- a uniformed deliveryperson will bring 100' of that today. Sadly, my KX3 is sitting at UPS just a few miles away, safely locked up for the weekend. I found fiberglass windsock poles that look very encouraging. .... and I keep looking at the trees outside my apartment window. :-) 73 -- Lynn ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Hello Lynn!
Welcome aboard! 73, Lyle PS: For those who don't know him, Lynn is another of the early packet radio pioneers that seem to be joining the Elecraft family, and whom I've known since 1982 or so. Terry WB4JFI is another. > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
My favorite is a 20 meter DEZ, 86 feet fed in the center with open wire
line. Works OK on 80, good on 40 and 30, excellent on 20 and 10 and ok on 17, 15, and 10. Now in my current apartment I hid 43' up a tree and hid 43' horizontally. I feed it with open wire line from a balun connected to the back of my K3. I have Just started DXCC on RTTY and in three days have WAC and 20 countries. 73 es GL! Mike WA5POK -------------------------------------------------- From: "Lynn W. Taylor, WB6UUT" <[hidden email]> Sent: Friday, March 08, 2013 11:16 PM To: <[hidden email]> Subject: [Elecraft] [KX3] Portable Antenna question > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > I saw some discussion of wire lengths that worked well with the tuner, and > of course, now I can't find it. > > I plan on mostly portable operation -- no place where I live for a nice > antenna (and probably hard to get the OK from management). > > Anyone have any practical experience to share? > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lyle Johnson
Hey Lyle!
Thanks for the shout-out! I continue to be VERY impressed with the Elecraft equipment, along with your contributions to them. I now have a K3/P3/SVGA, and a KX3. A friend here in Charleston and I are playing with some interfacing to these rigs. Being retired brings more time to play, but less funds to go hog wild! Or, should that be Ham wild? 73, Terry, WB4JFI -----Original Message----- From: Lyle Sent: Saturday, March 09, 2013 2:19 PM To: Lynn W. Taylor, WB6UUT Cc: [hidden email] Subject: Re: [Elecraft] [KX3] Portable Antenna question Hello Lynn! Welcome aboard! 73, Lyle PS: For those who don't know him, Lynn is another of the early packet radio pioneers that seem to be joining the Elecraft family, and whom I've known since 1982 or so. Terry WB4JFI is another. > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Lynn W. Taylor, WB6UUT
Hi Lynn,
I just picked up a KX3 a few weeks back and of course had the same question. I knew wire antennas would work well but wanted to try something different and see what would work if I found myself out in the desert or jumping on the air from the beach, so I went with the super antenna MP1 with the optional tripod base. I set it up in my back yard (in less than 10 min) and added a few more radials onto it than what it came with. Set the KX3 up on the patio table and fired it up. First QSO was to Alaska from the SF bay area on CW using 3 watts on internal batteries. I was excited considering I had very low expectations of the antenna. But it worked. The main thing I like about it is that it setup and break down is very easy, and the foot print is really small. I have limited antenna options at home and am using a hustler 6btv that’s concealed in painted PVC pipe hidden in the trees. My plans for this weekend are to set the MP1 back up and do some a/b comps with the hustler. On a side note, I went to New Mexico the week after I got my KX3. The super antenna breaks down really small and I had no problem sticking it in the pelican case I put together for the setup. Took the whole package radio and all as a carry-on onto the plane with out any problems. Got to New Mexico and set it up and had a blast. Are there other ideas that will work better, definitely, but for $100 for a small vertical it worked wonders. I figure if I find myself in a hotel room it would also work wonders. I also picked up one of those MFJ 20 meter loaded telescoping antennas that plugs into the KX3 bnc connector. I added some radials to the KX3 case and started working JT65 while sitting at my kitchen table. Called CQ and started checking the PSKreporter website. Stations all along the east coast were picking me up from the SF bay area. The only issue I had was RFI causing the mousepad to freeze up. With JT65, that’s not a huge problem, but that would be an issue with PSK31 or RTTY. With the MP1 I did not have any RFI issues. As someone else mentioned trying out all different kind of antennas is a lot of fun, and I’m not going to lie, I’ve spent most my free time playing with the KX3 and different antennas and have somewhat abandoned the shack hihi. 73, Steve KE6GDA Sent from Windows Mail From: Lynn W. Taylor, WB6UUT Sent: March 8, 2013 7:16 PM To: [hidden email] Subject: [Elecraft] [KX3] Portable Antenna question My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. I saw some discussion of wire lengths that worked well with the tuner, and of course, now I can't find it. I plan on mostly portable operation -- no place where I live for a nice antenna (and probably hard to get the OK from management). Anyone have any practical experience to share? 73 -- Lynn, WB6UUT P.S. Hi Lyle ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Hi Steve,
Them MP-1 is a pretty neat antenna. You can set it up from the inside of a tent when its raining (right outside the door). Its a compromise length wise but well built. I would suggest NOT putting any antenna on the BNC connector of the KX-3 because of the strain on the BNC connector in the radio. (I would not use any hard connector like an 90 degree BNC to connect an antenna either). Use some coax between the rig and the antenna and find a suitable and cheap to fix if needed way to support the antenna. 73/72 - Mike WA8BXN -------Original Message------- From: [hidden email] Date: 3/11/2013 4:55:17 PM To: [hidden email]; Lynn W. Taylor, WB6UUT Subject: Re: [Elecraft] [KX3] Portable Antenna question Hi Lynn, I just picked up a KX3 a few weeks back and of course had the same question. I knew wire antennas would work well but wanted to try something different and see what would work if I found myself out in the desert or jumping on the air from the beach, so I went with the super antenna MP1 with the optional tripod base. I set it up in my back yard (in less than 10 min) and added a few more radials onto it than what it came with. Set the KX3 up on the patio table and fired it up. First QSO was to Alaska from the SF bay area on CW using 3 watts on internal batteries. I was excited considering I had very low expectations of the antenna. But it worked. The main thing I like about it is that it setup and break down is very easy, and the foot print is really small. I have limited antenna options at home and am using a hustler 6btv thats concealed in painted PVC pipe hidden in the trees. My plans for this weekend are to set the MP1 back up and do some a/b comps with the hustler. On a side note, I went to New Mexico the week after I got my KX3. The super antenna breaks down really small and I had no problem sticking it in the pelican case I put together for the setup. Took the whole package radio and all as a carry-on onto the plane with out any problems. Got to New Mexico and set it up and had a blast. Are there other ideas that will work better, definitely, but for $100 for a small vertical it worked wonders. I figure if I find myself in a hotel room it would also work wonders. I also picked up one of those MFJ 20 meter loaded telescoping antennas that plugs into the KX3 bnc connector. I added some radials to the KX3 case and started working JT65 while sitting at my kitchen table. Called CQ and started checking the PSKreporter website. Stations all along the east coast were picking me up from the SF bay area. The only issue I had was RFI causing the mousepad to freeze up. With JT65, thats not a huge problem, but that would be an issue with PSK31 or RTTY. With the MP1 I did not have any RFI issues. As someone else mentioned trying out all different kind of antennas is a lot of fun, and Im not going to lie, Ive spent most my free time playing with the KX3 and different antennas and have somewhat abandoned the shack hihi. 73, Steve KE6GDA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Stephen Selberg
I too use the MP-1 Super Antenna, but replaced the flimsy collapsible whip, which I lost one windy evening, with a 10ft Buddypole whip! It's a bit longer but much more robust. The MP1 needs to be tuned carefully, and collapsed a section to resonate on 10m with the Buddypole whip, but otherwise it's a real good backup when I don't have my 32ft push-up pole.
Paul AF5BV Sent from my iPhone On Mar 11, 2013, at 3:55 PM, [hidden email] wrote: > Hi Lynn, > > > > I just picked up a KX3 a few weeks back and of course had the same question. I knew wire antennas would work well but wanted to try something different and see what would work if I found myself out in the desert or jumping on the air from the beach, so I went with the super antenna MP1 with the optional tripod base. I set it up in my back yard (in less than 10 min) and added a few more radials onto it than what it came with. Set the KX3 up on the patio table and fired it up. First QSO was to Alaska from the SF bay area on CW using 3 watts on internal batteries. I was excited considering I had very low expectations of the antenna. But it worked. The main thing I like about it is that it setup and break down is very easy, and the foot print is really small. I have limited antenna options at home and am using a hustler 6btv that’s concealed in painted PVC pipe hidden in the trees. My plans for this weekend are to set the MP1 back up and do some a/b comps with the hustler. > > > > On a side note, I went to New Mexico the week after I got my KX3. The super antenna breaks down really small and I had no problem sticking it in the pelican case I put together for the setup. Took the whole package radio and all as a carry-on onto the plane with out any problems. Got to New Mexico and set it up and had a blast. Are there other ideas that will work better, definitely, but for $100 for a small vertical it worked wonders. I figure if I find myself in a hotel room it would also work wonders. > > > > I also picked up one of those MFJ 20 meter loaded telescoping antennas that plugs into the KX3 bnc connector. I added some radials to the KX3 case and started working JT65 while sitting at my kitchen table. Called CQ and started checking the PSKreporter website. Stations all along the east coast were picking me up from the SF bay area. The only issue I had was RFI causing the mousepad to freeze up. With JT65, that’s not a huge problem, but that would be an issue with PSK31 or RTTY. With the MP1 I did not have any RFI issues. > > > > As someone else mentioned trying out all different kind of antennas is a lot of fun, and I’m not going to lie, I’ve spent most my free time playing with the KX3 and different antennas and have somewhat abandoned the shack hihi. > > > > 73, > > > > Steve > > KE6GDA > > > > Sent from Windows Mail > > > From: Lynn W. Taylor, WB6UUT > Sent: March 8, 2013 7:16 PM > To: [hidden email] > Subject: [Elecraft] [KX3] Portable Antenna question > > > My new KX3 is due to arrive on Monday -- with the KXAT3 tuner. > > I saw some discussion of wire lengths that worked well with the tuner, > and of course, now I can't find it. > > I plan on mostly portable operation -- no place where I live for a nice > antenna (and probably hard to get the OK from management). > > Anyone have any practical experience to share? > > 73 -- Lynn, WB6UUT > > P.S. Hi Lyle > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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