I have a passive GNSS antenna with a 6" 1.13mm shielded coaxial cable that connects to a u.FL connector. From the u.FL connector I have a 2" microstrip transmission line to the RF input of my GPS receiver. Altium's built in impedance calculator shows the trace impedance at 34 ohms not 50 ohms. Other calculations of stripline based on on strip height above ground plane, freq, dielectric material... also show similar impedance.
How does that affect power received at the GNSS receiver? I presume there will not be max power transfer since the impedance are different.