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The key is its grounded at the source end Eddie,

low impedance ground inverted through odd 1/4wave multiples to a high impedance at the antenna end,

disconnect it from ground & your odd 1/4waves have maximum CMC like the grounded 1/2wave,

what joe is claiming only applies to a certain set of conditions rarely found in mobile installs,


Next we will have people arguing the virtues of cutting coax to electrical lengths of the outside of the braid to minimise CMC vs cutting electrical lengths of the inside to minimise impedance transformation.