I don't have a tower but I am using a 10-20m cobweb antenna in my attic. It's non-directional and feeds with a single coax. It gets out pretty well on all five bands. Recently worked aZL station on 17m with less than 2 watts (this is the requisite anecdotal information... but true.) I'd love to try it on an 80 ft tower...
I'm using the G3TXQ version with single-wire elements. I originally trimmed it to freq using a (cheap) noise bridge but a graphical antenna analyzer would be nice and easy. 73, Drew AF2Z On Sat, 13 Sep 2014 13:16:37 -0800, you wrote: >I sent this to the reflector last Tuesday but it never posted on the >reflector; here it is again: > > >>Date: Tue, 09 Sep 2014 09:03:13 -0800 >>To: Elecraft Reflector >>From: Edward R Cole <[email protected]> >>Subject: OT: Antenna ideas for a cheap ham >> >>This might be considered an offshoot of the OT R8 discussion - read on: >> >>A local ham friend dropped by to show my an antenna he had acquired >>wondering what freq. it covered. After looking it over I decided it >>was a 36-MHz quarter wave vertical with decoupling section at the >>base and fed with a gamma-match. The gamma has a 7/16 coax >>connector with N-female adapter, so apparently commercial band. >> >>My friend also recently acquired an 80-foot crank-up tower for $100 >>(Yes, you read that correctly). Some guys are really lucky! He >>lives on disability so has few funds for ham radio, but asks me what >>antennas he can put on top of his tower. He does not want a >>directional antenna like a yagi...sooo >> >>First we considered he could lengthen the 72-inch commercial >>vertical to operate on 10m and mount it on top of the tower. But >>that would only give him one band.He could also shorten it to 6m but >>there is little local activity on that band so 10m probably would >>provide him better use. >> >>For HF bands I thought about a dipole with auto-tuner. Finally >>thought maybe running sloping dipoles might work well. Base load >>that tower as grounded vertical? 160-40m? >> >>Another note: He has a tech-class license so that limits where he >>can operate. I suggested upgrading to General and he is not adverse >>to doing that. He owns a IC-706. >> >>Any suggestions? > >73, Ed - KL7UW >http://www.kl7uw.com > "Kits made by KL7UW" >Dubus Mag business: > [email protected] > ______________________________________________________________ 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 Message delivered to [email protected]
