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wtenney24

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  1. That’s what I was looking for! Thank you very much! And yeah, the viewshed in CalTopo is a far cry from real radio propagation programs. But it’ll let me identify some key locations that I could send an emergency transmission from if necessary.
  2. New user here. I was wondering how much of the antenna would need to visible in line of sight. The reason I ask is I use CalTopo for all of my off-road mapping and navigation. It’s a very powerful program that I barely scratch the surface of, but it is capable of running viewshed analysis. In short, you choose a location, set an “eye level” height, and the program shades everything that is visible from that point. There’s a repeater near where I’ll be camping soon and I wanted to run the viewshed to see where I’d be able to ping the antenna (if need be). So my question is what “eye height” should I use? Let’s say the antenna in question is 100’. How much of the antenna would need to be visible to successfully receive?
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