[Elecraft] NVIS HF vs VHF line-of-sight

[Bill W4ZV]

Hi Stan,

Responding to excerpts below:


KG7FYI wrote
> Our very local scenario is filled with mountains and valleys. We are the 
> land of “One Hundred Valleys”. Actually there are thousands of them! 2M 
> is very spotty. 
> 
> Our ARES group requires go bags for all vehicles. Few people but a lot 
> of livestock and gardens here.
> 
> My only concern was availability of frequency bandwidth. We have a least 
> two Extra Class licenses in the community and one MARS certified. 
> Unfortunately they are many 15+ miles away deep in a valley.

Sounds like a beautiful area!  You probably know this but NVIS would be a
perfect solution for you.  40 meters would be the easiest NVIS antenna (very
low dipole) to implement.  "Military NVIS communications mostly take place
on 2-4 MHz at night and on 5-7 MHz during daylight."

Here's a link explaining:

https://en.wikipedia.org/wiki/Near_vertical_incidence_skywave 

However this would require General Class licenses or higher for voice modes.

73 and Good Luck!

Bill  W4ZV



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