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: [email protected] [mailto:[email protected]] On Behalf Of Lynn W. Taylor, WB6UUT Sent: Friday, March 08, 2013 10:52 PM To: [email protected] 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:[email protected] 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
