FYI.... your mileage may vary
from paul K3SF
I currently use a tennadyne T-8, which is an 8 element LPA...it replaced a hygain th7dx.
i have also had cushcraft A3s....
another array i had
was 4 el 20m monoband, 5 el 15m monobander and 6el 10m monobander
the best overall performance was the stacked monobanders...(enough said)......
followed by the LPA T-8 (couldnt fit the T-10 but more bands and better than the TH7DX)
followed by TH7DX ( one three bands but better than the A3s))
followed by A3S ( work'ed ok and better than my OCF)
MY Thought on the T-8 LPA on yahoo group for tennadyne LPA
This antennna just performs.
I have had the following antennaes on
the tower, cushcraft A3, hygain TH7DX and now the T8.
My reference antenna is 139ft OCF wire at 70 ft.
The A3 was 3 s-units better than ocf
The TH7 was 6 s-unit better than ocf
The T8 is 7 to 8 s-units better than the ocf.
Reference band is 20 mtrs. That was enough
to convince me that the T8 just works better.
same story as others about the instructions but i took some extra
time re-reading..and it eventually sunk in on how to assemble the
material quality is the best..high quality aluminum and stainless
steel used throughout. only had one problem and that was with the
boom splices not being properly machined to fit inside the boom. This
is a close tolerance assembly and a few thousands of an inch makes a
big difference.. easy vs hard to assemble.. after taking a few
measurement. I machined down the boom splices to a proper fit...looks
like the factory had started to machine the parts but didn't finish..
i let Roger know this problem via email.. so i figure they will keep
a better watch on QC'ing these parts.
i took a lot of pictures during the assembly process. this help me
make sure i was following the directions and to double check i was
using the correct parts. one thing i did notice from the pictures was
the elements segments that went into the boom had a small dimple on
the end that is to fit into boom.. not something i found in the
instruction but just noticed based on the close tolerence fit.. if
you dont use this key the element segment then have a little amount
(about 1/8 inch)sticking thru the boom rather than being flush with
the boom...may also affects the overall length of the element itself
picture are available on the yahoo grouphttp://groups.yahoo.com/group/TennadyneAntennas/