You need to transmit to adjust your antenna tuner prior to joining an HF single-sideband net that is in progress. On what frequency should you make the adjustment?

Single-sideband (SSB) signals on the HF bands typically occupy about 3 kHz of bandwidth. If you tune exactly on the net frequency or only 1 kHz away, your continuous tuning carrier will cause severe interference (QRM) to the ongoing net operations. By moving 3 kHz to 5 kHz away, you ensure your tuning signal falls safely outside the receiver passband of the stations communicating on the net. Always remember to listen first to ensure your new tuning frequency is also clear, and properly identify your station as required by regulations.