[TowerTalk] (no subject)

[John Barry EI8IR <John_ei8ir@eircom.net>]

Hi,


I'm in the process of planning a new tower. It will be 100ft high, and 
guyed at 30ft, 60ft and 90ft. I intend having a pair of monobanders for 20m 
/ 15m / 10m and it will be built as part of a multi-single station. I 
already have a TH7 at 70ft.

My dilemma is how and what to rotate !
Do I rotate just the top set of antennas, leaving the lower ones in a fixed 
direction. This will be useful for instant direction change or will allow a 
multiplier station use the fixed antennas.

or do I rotate the whole tower. This will allow the beams to be phased, and 
allow a choice of higher or lower antennas when the band is open, but will 
not be of much use to a multiplier station.

I guess this is more question of the relative usefulness of either 
configuration in a m/s contest as it is more-or-less the same hardware 
deployed differently.

Also, the 20m antennas will be at 90ft and 60ft ... will this be a useful 
pair when stacked? or are the antennas too close to notice any difference??


Many thanks

John ei8ir






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