[TowerTalk] Phasing Question

[R. David Eagle]

Hello all...I have a question regarding coaxial phasing that has been totally confusing me.  Let's say I wanted to phase 2, or possibly, 4 short verticals in a swichable array by means of coax delay lines.  I understand that 90 degs phasing can correspond to 1/4 wavelength, but if you went to other intervals of about 130, 140, 150, etc...how does one calculate the length the amout of coax needed to create that phasing effect?  Assume using 75 ohm coax.  

Any help would greatly be appreciated...

Dave
KB8NNU


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