Hello, I would like to build an end fed 1/2 for 20M. Just like the simple 1/2 wave CB verticals for 10/11M. I understand that I need a 1:9 or 1:16 BALUN. I've had a look at EI7BAs site for the BALUN
Hello, I've managed to lay my hands on some ferrite cores. They were used to 'screen' multi-core computer/communication cables. There are no markings. They are about an inch long, an inch in diameter
Hello (again), I've received just one or 2 replies on my original mail, (thanks for those). How do those end fed 1/2 wave "CB" verticals work, with no ground ? The closest I have found is a J-pole, w
Hi Bob, Thats exactly what I'm looking for. Where can I find out more about these tapped coils? The different dimensions for the different bands. etc etc... Does anyone have any diagrams ? or better
Hi, Following my question about end fed verticals, It has been suggested I get a copy of "Array of Light" by N6BT (Force 12). I have sent Force 12 2 mails, but have never received a reply. I sent my
Hi, I have access to a 40-50 meter water tower and would like to put out a big signal State side during the ARRL 10m contest. I was thinking about a V beam. This is where the apex of the V is up heig
Hi, I have access to a 40-50 meter water tower and would like to put out a big signal State side during the ARRL 10m contest. I was thinking about a V beam. This is where the apex of the V is up heig
Thank you to everybody that replied. Here is a quick summary. It sounds like a Vee beam is an antenna from the 50's and 60's. Almost all the references that were found were from books of that era. Ho
Hi, I am looking for a design of an interlaced 20m and 40m yagi. We (The club) have a 5el monoband yagi and , and would like to add a 2 or 3 el 40m yagi to the same boom. (We have a 'shorty 40'.) Som
Hello, I am looking to install an interlaced 20m and 40m yagi. I have not found any information and I have only had one reply to my request for information from Towertalk. This reply suggested I look
'allo, I am going to install my first tower. But I know nothing about concrete. I think this ia a very basic question. What ratio of concrete to sand do I need ? Are there differnt sorts of concrete
Hello Towertalkers, I just thought I would get in touch as I am planning a visit to Boston and Maine. The plan is to spend 2 weeks in September in the Maine area and I will probably be arriving and l
'allo, Thank you to everybody who replied to my mail. And thank you to all the New Englanders for such a warm welcome. I think I will need to spend 2 months rather than 2 weeks just to visit all the
Hello, I have a question from my radio club, We have a Hygain 4 element 20m monoband yagi (204) and a Cushcraft 40-2cd. We would like to put them on the same boom. Something like a EF-420/240 from fo
Hello, I've just checked the archives and was surprised not to find any info on this topic (Its happened to us all, right ?) ..... I have acquired a Hygain beam, which took a tumble (that is why I ha
Hello, How do you separate aluminium tubes that are stuck together ? We have a 2 section boom that we want to separate but the pieces are stuck together. The boom is joined at the centre by a smaller
'allo I'm looking to install an 80m directional array for the ARRL contest. I will be operating from a watertower, which is about 130ft high. (see qrz.com F6KCP for a photo.) There is not a great dea
'allo, I'm looking for some more advice on a 80m GAIN antenna. I will be operating from my club station in the ARRL SSB and I want to put up a directional gain antenna. We operate from a water tower
Hello, I have recently bought a second hand Force12 EF-415. But the hair pin match is missing and I do not have the handbook. Can someone help me out please. I would like to rebuild the matching sect
Hello again, Still no replies, either from the reflector or force12. Can anyone help, please ? Thanks Robert G0HGW g0hgw(at)yahoo.com (at) = @ -- Robert <g0hgw@yahoo.com> wrote: _____________________