[TowerTalk] Antenna in attic

[W7TMT - Patrick]

AC0C built an amazing array of directional antennas in his large attic. He won contests with them. 

All the details and guidance on how to approach such a project with so many variables are here: 
https://ac0c.com/main/page_prior_antennas_stealth_antennas.html

He also had a detailed article in NCJ about the multiband beam in the attic. There is a link to that article on his Downloads page here:   https://ac0c.com/main/page_downloads_downloads.html

73,
Patrick, W7TMT

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Brad Anbro
Sent: Monday, May 16, 2022 05:32
To: towertalk at contesting.com
Subject: [TowerTalk] Antenna in attic

Hello all,

A new acquaintance of mine, who is a newly licensed ham, would like to install an HF antenna in his attic. In my 40+ years as a ham, I have never installed an HF antenna in an attic. I have installed many wire antennas outside in the open air, but none in an attic. I am guessing that he would like to end up with a dipole for 20 meters, so that he can get on HF and make a few QSOs.

I am assuming that the antenna should be in the clear and as far away from the wood as possible. Is that correct? Also, is the required length appreciably different than a dipole installed outside in the air (468 divided by the frequency in MHz)?

Thanks for any help with this!

73 de Brad, N9EN