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You only need to do impedance matching with seriously shortened antennas (think screwdriver antennas on 80m) using a coil with a high Q installed with a good ground plane or where you're using a non-resonant antenna and your tuner doesn't have a wide enough range.

The 108" whip is a quarter wave on 11m and has no coils so shouldn't need any matching.

[QUOTE="M0GVZ, post: 453071, member: 22312"] You only need to do impedance matching with seriously shortened antennas (think screwdriver antennas on 80m) using a coil with a high Q installed with a good ground plane or where you're using a non-resonant antenna and your tuner doesn't have a wide enough range. The 108" whip is a quarter wave on 11m and has no coils so shouldn't need any matching. [/QUOTE]

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