[TowerTalk] Hy-Gain Discover 7-3

[Kenneth R. Goodwin, Jr.]

You ran into the same problem I did with the hairpin.  You would 
think that after 30+ years, that dimension would have been 
corrected.  The solution is to move the entire element assembly (all 
three elements).  I will send you the dimensions I used.

I found the electronic versions of the manuals to be slightly 
deficient as compared to the printed manuals.  I will send you the 
dimensions I ended up with including compensation for using a Hy-Gain 
balun, the expensive one.  Conclusion, it works like a champ on a 
small range of frequencies. Optimized for the CW end with the 
resonant point being 7.08 MHz, it has a bandwidth from 6.9 MHz to 
7.18 MHz where the SWR is less than 3:1.  It is an awful lot of work 
for 3 S-units but at times I am more than glad I have 'em.  Ken K5RG