Simulating a single-boom 13cm/70cm ao-40 antenna with MMANA

Here is a simulation of the effects of adding a 70cm Yagi to a 13 cm helix on the same boom. Simulation is done using a freeware MMANA, based on NEC-math

It is easy to do first steps with included example-files. Updated link for downloading the software is http://mmhamsoft.amateur-radio.ca/files/index.html