Topband: Ladder line + tuner

Paul Christensen w9ac at arrl.net
Mon Nov 21 06:58:19 EST 2016


> "I second TLDetails.  TLW, not so much."

TLW also contains a powerful tuner modeling tool, allowing for the quick
design of hi-pass-L, lo-pass-L, and T networks.  Once the complex line input
Z is calculated by TLW, the result can be input into the tuner model to
transform the complex Z into 50+j0.  

For T network designs, TLW can compute C-L-C values based on desired phase
shift through the network for use with phased antenna systems.  It's worked
so well that I can dial-in component values with a LCR analyzer, insert the
network into the transmission line and not require further adjustment.

Paul, W9AC  




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