Tribander phasing line lenght

[Lynn D. Osterbur]

  I am thinking of phasing 2 tribanders.  Approximately 28 feet vertical seperation.   What would be the optimum spacing and length of the transimssion lines.
I will use a remote coax switch to select : either or both antennnas.
I am coming up with about 28 feet of 9913 (flexible).  How critical is this lenght other than the fact they must be equal?
Comments welcome..   73  Lynn

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