[Boatanchors] Hy-Gain TH-4 Info

Jim Wiley jwiley at alaska.net
Thu Oct 18 14:36:43 EDT 2007



Gang -


I have an old Hy-Gain TH-4 antenna that is complete but apart.  Each 
element is partially assembled,  so I can figure out which is probably 
the driven, reflector, director, etc.  However, there is some 
confusion.  There appears to be a single band element, probably a 10 
meter reflector (maybe a director, not sure) as well.  I was hoping 
someone on the list might have the correct dimensions for element 
spacing for each of  the elements, as measured from the end of the boom 
or from the driven element, whichever is available.  


Also, I believe there were different settings for the element lengths  
to optimize the antenna for the CW or phone portion of the bands.  I 
would like to get those dimensions as well. 


I looked on the MFJ / Hy-Gain web site, and found PDF versions of the 
instruction manuals for all the current products and some not too far 
back on the obsolete list, but unfortunately no info for the TH-4. 


Could someone check their library and see if they happen to have a book 
for this antenna that they could either fax me a copy of the TH4 manual, 
or maybe send me a list of the dimensions so I can get this antenna back 
together and on the air?


Thanks


- Jim, KL7CC




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