Good discussions. No silver bullet. I am trying to decide what to do when travling, often by bike and overseas. My current strategy is close to half wave vertical. But shooting with a slingshot takes time. A small fiberglass pole (2 .5 folded', 22' unfolded) may help when trees are not around. Also, sometimes the performance is not that good because of poor soil conductivity or lack of higher angle of radiation.
I am tempted to have a dipole with TV line but it is an extra hassle. Also good performance is not be there until half a wave high. I had best luck with long wire, which can also be described as a form of inv L. But it needs a second support. 73, Ignacy, NO9E On Thu, Aug 15, 2013 at 12:10 PM, N5GE [via Elecraft] < ml-node+s365791n757774...@n2.nabble.com> wrote: > Here is a good antennae discussion reflector email address, which is > more appropriate than the Elecraft list: [hidden > email]<http://user/SendEmail.jtp?type=node&node=7577741&i=0>. > > > Try it you'll like it. > > 73, > Tom > Amateur Radio Operator N5GE > Licensed since 1976 > ARRL Lifetime Member > QCWA Lifetime Member > > On Wed, 14 Aug 2013 08:44:33 -0400, Stan <[hidden > email]<http://user/SendEmail.jtp?type=node&node=7577741&i=1>> > > wrote: > > >Well said, Bill. I used to sign /QRP but stopped doing that routinely > and increased my CQ return rate. Nowadays I do not mention my attic > doublet unless the subject comes up. Why shoot myself in the foot... > > > >I have nothing against small loops. I built a simple 40 meter STL from > about 8 feet of hardline and used inductive coupling and it was very, very > impressive. Then I built the mother of all loops from Home Depot 2 inch > copper tubing, an Edmunds Scientific 1 rpm motor, and a Jennings vacuum > variable. Cost me over $500 ! It was for 20 meters only. It worked > amazingly well, including a QRPp contact with UA1CE not once, but twice. > > > >The reason I abandoned small loops was a practical one -- frequency > agility. Because I had the option, I installed my remotely coupled > multiband attic doublet. My advice to those dealing with antenna > restrictions is to consider small loops along with other solutions if the > opportunity is there but not to view a small loop as something magical and > mystical. > > > >My QRPp QSO with Gene could have occurred with a wet noodle if the > conditions were right. > > > >73, Stan WB2LQF > > > >Sent from Samsung tabletBill - K6IH <[hidden > >email]<http://user/SendEmail.jtp?type=node&node=7577741&i=2>> > wrote:Howdy to all, > > > >I don't think anyone will question the fact that a good antenna system > >is one of the most important factors in a ham station being able to > >communicate efficiently particularly when using qrp power levels. > > > >While I would agree that a full length dipole antenna, or beam antenna > >would be preferable to a smaller 3' loop antenna, in my case that is not > >only impractical but impossible at my home qth since I live in a high > >rise building that has steel supports throughout the building instead of > >wooden studs. This effectively makes the interior of my high rise > >apartment inside of a faraday rf shield and prevents most radio signals > >from radiating or receiving when using an antenna inside of my > >apartment. This means an antenna has to be mounted outside of the > >apartment, and the balcony is the only area available to install an > >antenna. With such a limited area to install an amateur antenna, I find > >the MFJ 3' loop to be one of the better alternatives to be able to > >operate my ham station on the hf bands, and still be able to change > >bands and tune the antenna remotely with the MFJ Remote Control Unit. > > > >With the myriad of various CC&R's and antenna restrictions around the > >USA, many hams are forced to utilize compromise antenna systems to > >operate from their home qth, and finding the best alternative antenna > >configuration for an individual ham's location can be challenging. > >Therefore, I am very pleased with the various Loop antennas available > >from various ham vendor sources, since it allows many hams the > >capability to get on the air, when they might not be able to do so > >without the smaller loop antennas. Before deciding that hf ham radio > >operation is not feasible from an antenna restricted location, I would > >encourage a person facing such restrictions to seriously consider trying > >a loop antenna. > > > >73, > > > >--Bill - K6IH- > >______________________________________________________________ > >Elecraft mailing list > >Home: http://mailman.qth.net/mailman/listinfo/elecraft > >Help: http://mailman.qth.net/mmfaq.htm > >Post: mailto:[hidden > >email]<http://user/SendEmail.jtp?type=node&node=7577741&i=3> > > > >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]<http://user/SendEmail.jtp?type=node&node=7577741&i=4> > > > >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]<http://user/SendEmail.jtp?type=node&node=7577741&i=5> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Amateur Radio Operator N5GE > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > http://elecraft.365791.n2.nabble.com/Loop-antenna-s-tp7577664p7577741.html > To unsubscribe from Loop antenna's, click > here<http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=7577664&code=bm85ZUBhcnJsLm5ldHw3NTc3NjY0fC0xMzI0MDI1NjE3> > . > NAML<http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- View this message in context: http://elecraft.365791.n2.nabble.com/Loop-antenna-s-tp7577664p7577742.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
