Guys, I now know the above subject magazine is not the correct one.
The author's call was OD5CG, and it may have appeared in 73 magazine.
Basically, the article gave a rather complicated set of formulas and
after your input, would give you a matching solution.
For instance, if you had an antenna with a 145 -j46 load, the output
would tell you to insert an electrical length of X degrees of a
different impedance feed line ( including open wire in a coax system )
at a point Y measured from the 50 ohm connection at the antenna. Nice
thing about the thing is that it takes reactance into account.
For example, for the above, it might say measure 7' back from the
load, cut the 50 ohm line at that point, insert 4.75' of RG11 and then
transition back to the 50 ohm line.
The response from "towertalkers" has been fantastic!! But no luck yet.
73
Ed
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|