Jim,
The 4sq is a great antenna but the yagi beats the 4SQ almost all the
time, and often by some to a lot of s-units when it comes specifically
to raw signal strength. In some cases the difference is simply amazing.
On the other hand the yagi won't change directions instantly and it
won't provide an omni direction response. I often run with the stack on
EU and then jump to the 4-sq if I get a caller that I can't make out
from another direction because he's off the side or back. I was going
to take down the 4sq but the ability to point in some other direction
instantly is a real help especially in contesting.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 27-Feb-19 11:31 AM, Jim wrote:
WOW Jeff! There's a lot of info there! Interesting how well the 4
square works compared to the Yagi.
Thanks for posting!
Thanks
73
Jim W7RY
On 2/26/2019 7:48 PM, Jeff Blaine wrote:
Picking the "best" 40m beam is very hard on 40m and requires a
compromise unless you have a big tower, a big rotor, moderate
wind/ice exposure, height limitations and CW/SSB only vs. wideband
CW+SSB. Oh, and a serious budget of course. That's why there are
so many different designs in the market.
A bit of the decision process for both the beam type selection and
suppler may be found here for those interested:
https://ac0c.com/main/page_acc_towersantennas_40m_stack.html
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 26-Feb-19 10:57 AM, john@kk9a.com wrote:
Momobeam makes a T element 40m beam also, I used one last year
operating as
PJ4R. I have modeled a lot of 40m beams and it is hard to get a lot
of gain
with a single antenna. The Moxon is a nice design but it does not defy
physics.
John KK9A
Grant Saviers KZ1W wrote:
All true, Jim.
As well, re W6NL's design of the 40m Moxon being discussed. I
built/own
two. Also NEC4 verified. K3LR and 8P5A use them. The JK Moxon looks
like a close derivative.
Grant KZ1W
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