[Antennas] quagi vs yagi at vhf

[G B]

Hello,

I have been searching the internet for a study on long boom vhf quagis when
compared
to long boom yagis.  I could not find anything.

One of the EU guys who is famous for vhf yagis told me he did not think
loops worked
very well.  That is contrary to my experience, but, mainly, I find quagis
easy to
construct and they are inexpensive.  I have compared the 8 element quagi
here to two
different colinear verticals which claim to have 6dbd and 8dbd respectively,
which are
located well above the quagi.  The quagi is at least one, and many times two
S units
better.

Anyway, I am considering building a twenty foot boom yagi using a T match
and insulated
elements for sideband.

I would sure like to see hard evidence on a test range.

As a side query, I know I can find those stainless keepers for the 3/16"
elements on a couple
websites, but:  Where do they get them from?

As an example, the 'insulators' they sell for the elements go for $0.20 to
$0.35 each.  They are
just shoulder washers, and I found some for $0.01 each.  So, I figured these
keepers have an
official industry name, but cannot find one.  I am expecting that several of
our local club
members are going to build some of these antennas, and we will need some
quantity.

Thanks for listening...
73

Glen K4KV