Slidewinder HF aerial got me to USA mobile on first setup!

coil here https://www.m1ecc-antennas.co.uk/SlideWinder_DX_Coil_Black/p7313406_20780942.aspx

whip here
https://www.m1eccantennas.co.uk/Military_Folding_Antenna_Manpack_7_Sections/p7313406_21161932.aspx