Which of the following is good amateur practice for net management?
Always use multiple sets of phonetics during check-in
Have a backup frequency in case of interference or poor conditions✓Bonne réponse
Transmit the full net roster at the beginning of every session
All these choices are correct
Explication
A net can lose its frequency at any moment to interference or a propagation change, and reassembling one without a plan is slow. Announcing an alternate frequency in advance lets everyone move together.