Doing a quick [file card] sort ... I find .. you need another tower !
Can't see how you're going to get all those antennas on three ...
without the interaction you want to avoid .. especially those tribanders.
Dennis Brickey wrote:
> Good Evening guys,
> I have been licensed since January of 1989, and have since scrounged,
> bought, and
> traded until I have amassed what I think are the makings of an SO2R antenna
> farm, and it
> is time to put some of this stuff in the air. Here is the list of tower and
> antennas available to
> assemble this antenna farm.
> 120' 45g
> 100' 55g
> 100' 25g
> 4 Hygain 105BAS 5 element 10 meter beams
> 3 Hygain 155BAS 5 element 15 meter beams
> 3 Hygain 205BAS 5 element 20 meter beams
> 1 KLM 40M4 4 element 40 meter beam
> 1 HYgain 402BAS 2 element 40 meter beam
> 1 80M1 80 meter rotatable dipole
> 1 KLM KT34XA 6 element tribander
> 1 Hygain TH5xx 5 element tribander
> 1 Hygain TH3 3 element tribander
> I am limited on space. I have 300 feet of lot depth on which to place 3
> towers, and there is barely adequate room to guy the towers. They will be
> placed in a straight line from west to east with the tallest tower being in
> the middle. I say the tallest (45g) in the middle to accommodate rotation
> of the 80 meter rotatable dipole which is 92 feet in length; that is if it
> is reasonable to use the antenna.
> All that said, I need advice as to which antennas to put on which tower.
> consideration that comes to mind is that the bands should probably be split
> up such that there
> would be a low probability of operating on two bands on the same tower at
> the same time. I have
> bandpass filters, but I have no idea whether or not bandpass filters are
> sufficient to keep down
> interference between the radios at high power if utilizing the same tower.
> Finally, antenna
> interaction is a concern. I know that 40 meters and 15 meters don't work
> well together, so I will
> avoid that combination.
> Is there someone among this list of outstanding tower experts and contesting
> gurus that can point me
> in the right direction? All replies are appreciated.
> Thanks in advance for your time, and Happy Contesting!!
> Dennis N4DD
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
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