[TowerTalk] Tribanders on separate towers

[john at kk9a.com]

I am not aware of any issues with using tribanders on separate towers other
than possible trying to avoid them from beaming into each other.  It is a
pretty common setup. I have operated stations in the Caribbean with
tribanders on separate towers with much less separation than you have and I
notice no problems with them individually or combined. CT1ILT made over
10,000 QSO in CQWW CW as CR6K using tribanders on separate towers.   If you
plan on using a triplexer and phasing them then it may get a little more
completed.  There is good tribander / triplexer information on VA6AM's
website:
https://va6am.com/2020/04/30/tribander-stacking-ideas/ 

John KK9A


Jack White GW8DX wrote:

Hello Towertalk 

I've been considering installing multiple triband Yagis (interlaced element
types, say 4/4/8) at my QTH to be able to switch directions quickly or power
split in multiple directions. Installation heights can be between 50-120'
and the towers are between 100-200' apart. Some time ago ISTR Frank W3LPL
saying this arrangement would need careful modelling (maybe it was on a CTU
presentation) but I've not been able to find this information since. 

Unfortunately the towers are crank ups so a more traditional stack would be
a lot more complex and prevent me from lowering the towers until I could
remove the lower antennas with a cherry picker. 

Also, does anybody have interlaced type triband Yagis models that they can
share?

I'm interested to hear any thoughts or experiences.

Thanks 

Jack GW8DX