The .ZSCALE record can be used to impedance scale an entire circuit. The .ZSCALE record has a single real parameter, the impedance scale factor:
.ZSCALE F1
where F1 must be a real number. If the .ZSCALE record is encountered prior to the .CKT record, the inductor and resistor values in the circuit description will be multiplied by F1 and the capacitor values will be divided by F1. The impedance scaling is applied before any adjustment to a standard decade is performed (see .STDR and .STDC record descriptions). Elements within models are not scaled by F1.