Tag: Antenna’s

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multiband open dipoleOkay, so I got it finally up and running, my cat moustache antenna! First I build a decent 1:1 balun with an 4C65 core. I did want to attach more then one set of wires on a single feeding point. I did it with a piece of drainage pipe and some nuts and bolts. Insert the balun from under and ready! The wires where the right length in the first run. Only the 40m wires I had to shorten a little.

40m, 20m and 10m wires a nice harmonic within the middle of each band, swr is okay even without tuner. I’m a happy camper!

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Amidon BalunLast night my good friend Fred, PA3YH was visiting me. We’ve made a 1:1 balun for my new multiband dipole. I did think Fred has a funny name for such a antenna: cat-mustache-antenna.
The design of the antenna is still in my head mainly. But soon I will make a drawing of it and I’ll build the thing. The balun I needed anyway, so that has been made!

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multiband open dipoleLast weekend I’ve done some work on my multi band open dipole. Seems that the wires for 40m, 20m and 10m where all too long. That way the antenna was not resonant inside those bands but lower.
So last weekend I went on the roof with a cutting tool. After a few hours tweaking the results where promising. 40 and 10 where resonant inside the band! Made a nice QSO with Rick, G8KSM on 40m. Beautiful signal and Rick told me mine was too. But 20m still wasn’t resonant inside the band. So I went up again.
Then for the third time, the wire for 40m broke. Grrrmbl! Replaced the wire, but then the whole thing went fubar. Nothing was resonant anywhere…
A little frustrated I ripped everything off the roof and placed my good old single open dipole for 20m up. First I gotta figure out a good firm construction for this mulit band dipole. I’ve got some ideas already. Will post an update on this issue soon!