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04-09-2015, 02:20 PM (This post was last modified: 04-09-2015 02:21 PM by Thinker.)
Post: #1
High Frequency (HF) Radio Ground Wave Propagation for Group/Community Communications - Theoretical presentation of how HF ground wave can enhance communications operational security between groups and communities.

HF System:

Man-Portable Digital HF VHF UHF Communications Kit

Military HF Radio Communications and Near Vertical Incidence Skywave Propagation

Thinker, proud member of Realist News since Nov 2013.
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