[Ipg-smz] Antenna

[Christopher Dawson]

Hi there...at the other end of the spectrum, can either of you recommend a
good primer on ham radio for a complete newbie? I'm giving thought to
buying some relatively simple equipment for disaster preparedness
(primarily to be able to reach my family on the island if I'm on the
mainland during an earthquake, so 15-20 mile range is all I'd need).

Thanks in advance!

*Christopher Dawson*
*Writer | Educator | Speaker | Consultant | Entrepreneur | Farmer*
Threat Research and Response, Proofpoint
Member, Internet Press Guild <http://www.netpress.org/>
Connect with me on LinkedIn <http://www.linkedin.com/in/mrdatahs>

978.709.1749 (Google Voice)
Skype: mrdatahs
Twitter: @mrdatahs <http://twitter.com/mrdatahs>


On Thu, Oct 17, 2019 at 6:41 AM Tom Henderson via Ipg-smz <
ipg-smz at netpress.org> wrote:

> An end-fed dipole formed as an inverted V is the only real solution for a
> single pole antenna (or tree) to get reasonable radiance at 160M. The
> Cushcraft R9, and other verticals stop at 80M because the loading coil
> becomes ridiculously lossy. If you can run a modest radial field, there are
> other verticals that do pretty well..... but 160M will always be a
> compromise with trap/coil verticals-- albeit "tunable/matchable". "Metal In
> The Air" is the rule, and a 1/2wave is ~260' for 160M.
>
> I've used the QSO-King end-fed dipole successfully at Field Day and in my
> own backyard(s) given a high enough launch into a tall tree or with a tall
> mast (as the inverted V). It needs a lot of coax (50'min) to act as the
> counterpoise and does have a comparatively high noise factor. I've done
> AM/SSB/CW/Digital modes on 160M with it with reasonable success. Not going
> to win any contests on 160.
>
> The R9, along with 5BTV/6BTV verticals are interesting, and if you have
> mindless budget, the Stepp-IR verticals are the bomb (to your wallet).
> Their verticals are legendary for wallet-draining but yes, wicked
> efficiency because of their capacity to be tuned ON the mast physically for
> maximal radiance.
>
> 73 Tom W9YW
> On 10/16/19 6:18 PM, Wayne Rash via Ipg-smz wrote:
>
> Question for my fellow hams on the list. I’m trying to figure out a
> solution for an antenna that will cover 160-10. I have room for an OCF
> dipole, but I don’t have a support structure for one of the ends. I have
> plenty of room for a vertical. I don’t have a tower.
>
> I’d appreciate any thoughts.
>
> WR
>
> Sent from Wayne's mobile radio telephone device.
>
> --
> Tom Henderson
> ExtremeLabs, Inc.
> +1 317 250 4646
> Twitter: @extremelabs
> Skype: extremelabsinc
>
> --
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>
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