[CQ-Contest] Full Sized 3 Element 40M Yagi (summary)

Bill Fisher - W4AN w4an at contesting.com
Mon Mar 23 09:12:14 EST 1998


A few months ago I posed the question "Who is selling a full sized 3 
element 40 meter yagi?".  The response was just this side of nil.  

It turns out that DX Engineering was, but is not selling yagi's any 
more.  I got the feeling from talking to Bill that he would do a custom 
job if I wasn't in a hurry.

Force-12 offered to do a custom job based on their elements for their 80 
meter product.

Texas Towers sells the aluminum and Gerald (K5GW) offered to help with 
the design.  

I settled on M-Squared.  Mostly because I had received some good 
recommendations from friends who had recently purchased their 3 element 
80 meter yagi.  M2's normal 3 element full sized 40 is one that is on a 
4" boom and rated for 125MPH.  I had planned to turn this beast with a 
TIC Ring.  And though TIC sells an adaptor for 4" booms, I felt a 3" boom 
was more than enough for my installation.  

Mike did a custom design for me on a 3" boom.  According to YagiStress 
the antenna will survive 85MPH winds (the reflector being the weakest 
link).  I received the antenna last week and began to piece it together 
this weekend.  Everything looks great.  They did a very professional job 
of designing the antenna.  I can't see any shortcuts anywhere.  
Everything is stainless and the nuts are almost all self locking.  

I hesitate posting what it cost me, because I paid them to do the work of 
customizing this antenna.  I'm sure they would charge less to someone 
else now that the design is complete.  I suggest contacting M2 if you are 
interested.  

Of course only time will tell how it holds up.  But if I get 85MPH winds 
at my place, I'll be a month clearing trees before I see the antennas.  :)

73

Bill, W4AN






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