[TowerTalk] T-Network Calculator

[Gary Johnson]

It’s also super easy to do this in SimNEC. And you can feed it data from your antenna analyzer or VNA to see how the system performs. (AI coding is quite remarkable though! Pretty cool.)

Gary Johnson NA6O  
gwj at me.com

> On Apr 3, 2026, at 9:00 AM, towertalk-request at contesting.com wrote:
> 
> From: David Gilbert <ab7echo at gmail.com>
> To: "towertalk at contesting.com" <towertalk at contesting.com>
> Subject: [TowerTalk] T-Network Calculator
> 
> There are multiple online T-Network and L-Network calculators out there,
> but one thing that I've always found to be a limitation is that they
> only show a result for one frequency.? In an actual application, we
> might calculate a fixed network for a particular frequency but we
> wouldn't readily know what it does at other frequencies.