[TowerTalk] Half Wave?

[Keith Dutson]

 I guess I should have said NVIS rather than cloud warmer.   Used a 40 meter
dipole at 30 feet to work a lot of stations in US from YN2 a couple of years
ago.

73, Keith NM5G

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Peter
Voelpel
Sent: Thursday, January 17, 2019 2:38 PM
To: 'Tower Talk' <towertalk at contesting.com>
Subject: Re: [TowerTalk] Half Wave?

A 1/4 wave length height IS exactly a cloud warmer.
At least 3/8 wave length height is necessary for a lower take off angle.

73
Peter

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Keith
Dutson
Sent: Donnerstag, 17. Januar 2019 21:27
To: Tower Talk
Subject: Re: [TowerTalk] Half Wave?

My experience is that 1/4 wavelength is okay to avoid a cloud warmer.
However, higher is always better for DX, aka lower take-off angle.

73, Keith NM5G

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Warren Wolff
via TowerTalk
Sent: Thursday, January 17, 2019 11:47 AM
To: towertalk at contesting.com
Subject: [TowerTalk] Half Wave?

Greetings:   My understanding is that a yagi should be at least 1/2wave
above ground to avoid warming the clouds.   So, considering that thought,
how much does an antennasuffer if such antenna is 63 feet up instead of 67
feetfor 40 meters over VERY rocky "soil"?   Thanks, Warren; W7WY
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