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

[KG7FYI]

Thanks Bill. Yes it is a very nice area. This is us 
http://www.singingfalls.com

Right now the antenna plan is thus. :

Two towers spanning 380 feet. The foundations are poured and towers 
staged. Working on refurbishing a used KT34XA to current '36XA specs. I 
will have a 2M yagi pointed and our ARES relay tower and a 2M vertical 
for general purposes to access other available bands. I will have a 11M 
yagi up to communicate with unlicensed locals. Most folks have a cb base 
out here. I've got a multiband dipole and a long wire to span the two 
towers. ( I named the towers Sauron and Saruman :) )

73
Stan KG7FYI

On 04/30/2017 03:04 AM, Bill W4ZV [via Elecraft] wrote:
> 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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-----
Stan KG7FYI
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