[TenTec] Re: Ten Tec Antenna Tuners

[Jan Ditzian]

Sherrill,

I want to try what you have suggested, but I want to make sure that I
understand what to do.

I have Model 229 (manual) and Model 253 (automatic) tuners and 450 ohm
windowpane line coming into the house from an 80-meter dipole 700 feet
away.  I installed this feedline by terminating the windowpane line in a
1:1 Amidon balun outside the shack, and then coming into the shack with
about ten feet of RG-8 or 213 (I
cannot remember which).  Now that I have lived with this for a while, I
realize that the windowpane line could come directly into the house,
because the antenna cable entrance is simply a PVC L connector through
the wall of the house.  (I use a sophisticated temperature insulation
barrier made of old sweat socks stuffed into the L connector, coupled
with using the amplifier in cold weather to maintain the hamshack
temperature;  I washed
the socks).

Now, if I were to put the Amidon 1:1 balun between the tuner and the
amp, how would I do it?  Here are the specific questions:


   * Where does the balanced windowpane line connect; to the unbalanced
     coax antenna connector of the      tuner?
   * Where does the balanced side of the balun connect; to the
     unbalanced connector of the tuner meant to go to the amp or radio?
     This would mean that the unbalanced side of the balun goes to the
     radio.
   * I am pretty sure that you are not recommending that I use the
     balanced antenna connection on the tuners,  since this is simply
     another balun.

Clearly there are connector mismatches, but I really don't care about
that, as long as the electrical approach is correct.

I also realize that I may get more RF than I want in the hamshack, and
that may cause me to rethink the project.

Thanks and 73,
Jan, KX2A

--
FAQ on WWW:               http://www.contesting.com/tentecfaq.htm
Submissions:              tentec@contesting.com
Administrative requests:  tentec-REQUEST@contesting.com
Problems:                 owner-tentec@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm