Put 6m on top, c3 in middle, xm240 just above top of tower. Depending on
the type of top on the tower use at least 1, and maybe 2, thrust bearings
above the ham-4. If the tower top is a tube type you can get away with 1
thrust bearing, if it's a flat top you put one bearing on the top plate and
another about half way between that and the rotor. The 2nd one is only used
when you have to take the rotor out, and while raising the antennas on the
mast.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of PY1KS - Alex
> Sent: Saturday, April 26, 2008 17:14
> To: towertalk@contesting.com
> Subject: [TowerTalk] Stacking Antennas for different Bands
>
> Hi Guys,
>
> Maybe this subject was discussed already, but i did a search and couldn't
> find any information about it.
>
> Well, I'm back to HAM and I will building a new station and this time will
> be real one!. hihihi...
>
> So, I need some suggestions about how to stack my antennas. I will try put
> the max information I can.
>
> I will assembly a Tower around 40' and include a Mast around 20' but just
> 13' will stay to out of tower and 7' to inside and I will put a HAM IV as
> well.
>
> The antennas are. XM240 (Cushcraft), C3 (Force12) and a 6 el. for 6m.
>
> Let's to the questions:
>
> 1)Will I have a performance problem assembling all of this 3 antennas on
> the
> same Mast?
>
> 2) Which distance could be the best to separate each antenna of others?
>
> 3) The Ham IV should deal with this amount of weight easily?
>
>
> So, I was thinking in the xmas tree example to build the antenna
> configuration.
>
> Any replies will be very appreciated!!!
>
>
> Thanks in advance.
>
> --
> 73's
>
> PY1KS - Alex
> _______________________________________________
>
>
>
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