[Elecraft] Urban stealth HF: Inside-the-backpack loop antenna?
Michael Chowning
mike.chowning at mgccc.org
Tue Jan 22 20:51:01 EST 2019
Just for grins, look into this link, from Ohio State University from back in 2011!
https://news.osu.edu/antennas-in-your-clothes--new-design-could-pave-the-way/ <https://news.osu.edu/antennas-in-your-clothes--new-design-could-pave-the-way/>
There are also articles more recently (2018) on electronics in one’s clothes, and computers in one’s clothes in this website’s news as well.
Mike, N8TTR
> On Jan 22, 2019, at 2:57 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
>
> I’ve engaged in plenty of ultralight HF pack operation, with a KX2, AX1 antenna and a dragged counterpoise. In wide open spaces it’s a blast. But urban settings with dogs, wire-eating cacti and overzealous Neighborhood Watchers can distract from one’s radio experience.
>
> So, just for grins, I’d like to try something completely incognerdo: no visible antenna. A small remotely tuned loop (say 12” diameter) would seem to be the best choice, as it would fit entirely inside a small backpack. It could have modest efficiency while not requiring a counterpoise wire. Rigid 1” copper pipe formed in a square would be convenient to deploy.
>
> The loop would be only 6 to 8” from soft tissue, so you’d want to run QRP, of course. OTOH, we’re talking about HF. A cellphone by your ear is probably worse.
>
> Any other antenna suggestions?
>
> Wayne
> N6KR
>
>
>
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