ive been using a 40m delta loop as an upside down with the 4;15ft off ground for 25 years but my latest one all home built mind you i tuned the twin 240/43 's with an analizer and found that at a full wave for 40 will work on 80m i use efhw for 40-10 @22m of wire will also do 80-10 but u have to tune the balun its not great on 80m ssb but i worked china on both at 10w on ft8 have fun try a mag loop too i built an 160-80m mag loop it works have fum Dylan m0dsy.
Ok as upside down triangle fed at the bottom just off gnd it has a 3db gain over a dipole and if u tune the balun with a analizer it will do 75m at about a 45% loss but great on ft8 the wark bands will need an internal atu to bring them inline but I tried a lot of antennas over the years but I allways go back to my delta as it works so well I talked to south caraliner us every day for the month I’ve done nz china ect I use a tuned efhw for portable so u can’t beat a resonant antenna the delta doesn’t need to be perfect triangle so will it work for u? U will have to experiment which is fun ,you won’t know until u try drop me an email and I’ll send you a link for how to make it better than a bought one and lighter /more invisible too
Hey one useful Tip from me...I run the Radiator Wire thru the Eye Lead and then zip tighten it with Cable Zip Ties or a stainless Wire Clamps. Everything else you did is fine. What is the Ratio of the Transformer / Balun you using? 73 de Uncle Günter 💯🙋♂
