Update: Double checked all my measurements. 39.5 inches stainless steel whip, 19.25 inch 14ga wire counterpoise attached to mount. 10ft rg58au coax. Tested continuity on the coax. No shorts. Mfj-259c shows swr of 12. Impedance is R=153 X=217 AT 146MHZ. Coax loss is 0.7db.
Checked other frequencies for resonance. Have swr 1.1 r=47 x=3 at 73.0mhz.
Cannot figure out why this wont tune. Half wave antenna with counterpoise and not a point of resonance anywhere near the desired frequency. Don't think the mount is bad or wouldn't get resonance at 73.0mhz.
Frustrating!!