Thread: PRC-150?
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Old 02-28-2013, 14:44   #48
glebo
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Join Date: Jun 2007
Location: Hope Mills, NC
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"I'm sorry, come again? I doubt I really understand what you're asking, but with regards to propagation models I believe that at the company and BN level we have some propagation software (not sure the name, but I can find out), but I'm not sure what if anything they are using at the State G-6 where they are assigning our frequencies. My suspicion is they are using a Magic 8-ball or maybe a 12 sided dice.

For my purposes as a LRS TL, I usually run a VOACAP prediction just to get a ballpark sense of what I am looking at. Unfortunately VOACAP doesn't seem to have antenna parameters that really fit what we are using, so I think the accuracy is probably lacking."


I'm sure the prop programs do that (mid path), I haven't used them in ages....

As far as antenna info. If you have the usual radiation patterns of the normal antennas (doublets, Sloping V's, Longwires) on a graph (depicting the radiation angles of that antenna at various electrical hieghts above ground), all ya need to figure out is the take off angle from you to the distant station. Once you determine that, raise/lower your antenna according to the major lobe of radiation plotted on the antenna chart to that angle...(to go from point A to point B), no matter what antenna you're using. It's all about the take-off angle and your orientation of the major lobe of radiation(strongest) on that angle.

I'll try and find some of our handout stuff we used and try and post them...

Oh...keep a GOOOD log book so you don't have to go through this asspain again if you find yourself doing it in the same area later...

Hope this wasn't to confusing...kinda got on a roll...
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