[CQ-Contest] TH7 Replacement

john at kk9a.com john at kk9a.com
Tue Aug 8 08:10:32 EDT 2017


Gain is a function of boom length however you need enough parasitic
elements for the Yagi to work.  The MonstIR DB42 has a boom length of 42.5
feet with four loop elements and two straight elements. This is the only
MonstIR that I see on the SteppIR site so I am guessing that this is the
antenna you are referring to.  Are only the loop elements motorized? 4
elements on a 42.5 foot boom seem to be pretty big spacing for 20m and
higher.  For example my homebrew 4el 20m OWA beam is pretty wide spaced
and it only has a 32 foot boom.

John KK9A


To:	cq-contest at contesting.com, k9yc at arrl.net
Subject:	Re: [CQ-Contest] TH7 Replacement
From:	Ria Jairam <rjairam at gmail.com>
Date:	Mon, 07 Aug 2017 21:04:05 +0000


I have had a SteppIR (MonstIR, the big one like what they had at 6Y1V).

Instead I will just enjoy beating them in the
pileups since the 4 elements perform like 5.
73
Ria, N2RJ



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