I just finished 'rebuilding' my fanned vees for 17 and 12 meters. The 17m segment works fb but the 12 is nowhere near resonance. On both the VNA and the MFJ 259B various resonances are showing but not where I cut it for! The vee is on a 20 ft mast on a concrete roof edge and its additionally 15 ft above ground on one side. Do 17 and 12 just not play well? The previous antenna behaved the same way.