Cette page était sur le site de M0MRR; mais le lien ayant disparu, j'ai reproduit ici l'article que j'avais conservé. (F5AD)



10m Aluminium Moxon Construction


I found the plan to build the aluminium Moxon via the Moxon Project web site. You can email for a detailed drawing if required.

As I had very good results with a wire Moxon put together from telescopic fishing poles and wire I thought I would make something a bit sturdier. The aluminium was sourced from Smiths Metals, I used 1/2" & 3/8" tubing - at about £8.00 per 4 meter length it didn't cost too much.

mox-1a.GIF (1335 bytes)


cut pipes2.jpg (22124 bytes)   bend1.jpg (10032 bytes)  pipe cutter.jpg (27319 bytes)

Bending the tubes was a challenge, I eventually borrowed a pipe bender for 15mm copper pipe and used this. It worked satisfactorily and I used a hand held pipe cutter to cut the tubes.

My next door neighbour again proved helpful with a scrap bit of fence feather edging which I shaped to accomodate the aluminium elements. A scrap bit of plastic tubing was used for the boom. And the boom to mast bracket is cut from a plastic breadboard. As you can see I have used a coax RF balun.

connection1.jpg (15864 bytes)   connection2.jpg (11925 bytes)  connection3.jpg (12118 bytes)

reflector base1.jpg (13692 bytes)  reflector base2.jpg (13752 bytes)  reflector base3.jpg (11816 bytes)

I found a plastic garden stake that fitted perfectly in the 3/8" tubing to act as the spacer between the element and reflector.

spacer1.jpg (2406 bytes)  spacer2.jpg (10035 bytes)  boom_and_mast.jpg (13394 bytes)

The whole assembly is on the top of my 33ft push up aluminium mast and then back to my radio via a 40ft length of RG213 coax.

moxon up1a.jpg (13530 bytes)   moxon up2.jpg (17976 bytes)  moxon up3.jpg (14665 bytes)

Performance? I haven't got a brilliant way of measuring the antenna. I do know that when the Moxon is pointed Stateside, the european signals fade. I do know that unless the antenna is pointed in the general direction I want to transmit that the station called can't be worked. Therefore I suggest the published performance of the Moxon would be correct. I also find that the Moxon is a much 'quieter antenna and weaker stations are heard in comparison to the Cobwebb or longwire. I am really pleased with this antenna and am hoping to build different band versions.

Unless otherwise stated the contents of this web site are © 2006 M0MRR


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