Hi Luc, I've assembled several of these antennas and never found a problem. I would suspect assembly error; page 7 of the manual has all the dimensions to verify proper assembly. there are four columns of figures.
The leftmost column is the distance from the end of the boom to that particular element, while the rightmost column is the length of that element. Those 2 columns are for the horizontal elements. The middle two columns are the measurements for the vertical plane elements. Again the "middle-left" column is the distance from the end of the boom, while the "middle-right" column is the element length. The most likely element(s) to miss mounting are the one(s) that are mounted through the balun or tight against the polarity switcher. If you don't have the manual let me know and I will get a copy to you. 73 Don -VE1AOE- > I just assemble and "old" oscar 1 era KLM 2M 22C beam over the week end to ended stuck up with one element and no matching pre drilled hole > in the boom tube. Did anyone recollect if KLM ever missed pre drilled hole in their workmanship? My assembly was on the side of a bit hurry > and i will have to recheck al the measurements but with the pre drilled bolt holes boom section attachment it is hard to make mistakes but > we never know! > > Thank's for your inputs? > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb