# Calibration

#### Calibrate RF Gain

A 50 microvolt (S9) signal source such as an Elecraft XG1 or XG2 Receiver Test Oscillator, XG3 RF Signal Source, or other signal generator is required to perform RF Gain calibration.

If you do not have a signal generator available, a "factory default" calibration table may be used.

RF Gain calibration requires MCU revision 03.76 (or later) and DSP version 02.13 (or later).

#### Calibrate Transmitter Gain

Automates the Transmitter Gain Calibration procedure described in the K3 Owner's Manual.

#### Display Tx Gain Summary

Displays the TXGN {pwr} values from the most recent Transmitter Gain Calibration. This information may be requested to resolve a support issue.

The button is disabled until Transmitter Gain Calibration has been performed with the K3 Utility.