Total posts : 45366
I basicly did the same as you did used a formula to calculate the exact antenna i needed, i quiclk found out that there are way to many avriables even the most complex formula cant take in to account..
My antenna was a fixed mast (non adjustable) and my coild has no taps… Well it worked ok but not near what it could be doing….
SO first thing i did was made the mast adjustable.. this helped quite a bit.. but i knowi can still do better, so now im making a tapped coild and new mast exactly as the SStran specs say.. this should be a big improvement…
there are way to many variables to consider to build a totaly fixed antenna system.. thers soild conductivity, efficience of the wiring to conduct the connections of wires to the mast etc. This is why the antennas need to be adjustable, were dealing with such constrained rules thatwe absolutly have to be able to tune the antennas to there surroundings.. I would also bet after time goes by we will need to retune due to currosoin on ground radials or other electrical joints in the antenna..
SO you probably in the same boat as i am… reconstructing the entire antenna… but look at it the way im looking at it.. the first one provicded a great trial run at construction methods.. i feel that my second one will be much more sepiorly build and will most likly look like a pro built antenna 🙂