Antennas are affected by their proximity to the ground and many other factors. So it is very difficult to work antenna harmonics without an antenna tuner. MULTI BAND HF FAN DIPOLE ANTENNA DESIGN The above is a sample of a no tuner required Ham band or any band you choose to scale it's operation antenna. However, it isn't too portable: pg2 The no-tune all band antenna in a single wire (without bulky traps etc) is the Ham's fountain of Youth. It really sounds simple until you build one.
My base set up Icom ic7200 ( ideal well build bush radio, i collect them sad that they aren't made anymore ) David Clarck 10s/dc head phones ( extreme robuust ) Hb9koc cw key Ldg Z-100+ tuner Alpha-delta dxcc antenna 80-10 meters ( well made excellent good materials only 80 is narrow ) Alpha-delta dx-a antenna 160-40 meters