Hi Gary
As Bill K4XS say, the 15M6DX boom is not strong, is just .065 wall and really
not good for a 44ft boom.
My boom 15M6 boom broken in half where the clamps support it to the mast to
boom plate, caused but strong winds and vibration.
Then I bought the HD boom and the antenna looks very well.
Maybe you can add just a tube over it in the section that will be attached to
the tower.
I have 15 mts and 20 mts M2 yagi´s. This were my first monobands yagi. After
that I purchased antennas from G0KSC, the actual owner of Force12, and I really
love this flat SWR antennas! Once you operate with a flat SWR antenna across
the ENTIRE band, you will want to have always this kind of antennas
73,
Jorge
CX6VM/CW5W
-----Mensaje original-----
De: TowerTalk [mailto:towertalk-bounces@contesting.com] En nombre de StellarCAT
Enviado el: viernes, 03 de abril de 2015 08:53 p.m.
Para: towertalk@contesting.com
Asunto: [TowerTalk] Questions on M2 antennas...
I�m thinking of a 2 stack of the M2 15M6DX. Both antennas would be mounted
across the face of Rohn 55 (rotating tower)... unfortunately their manual
doesn�t say what the distance is to the mast/balance point and it looks rather
close to D2. I asked the factory what the distance was and even though its been
in production for years � they basically said they didn�t know and didn�t have
a CAD drawing for it! Seems very odd to me ... so instead I�m here asking if
anyone has one of these up and if they know what the approximate distance is
from the balance point to the closest element?
I�m also considering a 40M4LLDD (although the comments by some about linear
loading tend to worry me � the reviews from those that are using it are all
positive � albeit without a direct A/B comparison we all know how relative it
all is) ... and was wondering if anyone has one of these close to either a 20
and/or a 15. I�m planning on ~12� from the 20 to the 40 and ~31� from the 40 to
the top 15... looking to see if there�s any interaction at all. I can move the
40 to a different tower with a bit more work IF indeed there is some
interaction noted.
Thanks to those that own one for their comments.
Gary K9RX
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