These are the two software programs I use to calculate or at least estimate likely loss in feedlines.

There are others that can be used with good effect, but I thought I would share the ones I use in conjunction with modelling software and the real world!

https://kv5r.com/ham-radio/coax-loss-...

https://ac6la.com/tldetails1.html

Connect with my channel by subscribing and commenting.