The following radio operator guidelines are recommended for observing
security practices and precautions. They may reduce the possibility
of security leaks during radio transmissions.
Many of these
Besides radio operators, you must also ensure that switchboard
operators, telephone operators, and telephone users adhere to the
Don't violate radio silence.
Don't transmit in a directed net without permission.
Don't transmit faster than they can receive.
Don't use more transmitting power than necessary.
Don't tune transmitters with antennas connected.
Don't use excessive time to tune, change frequency, or adjust
Transmit all messages by the most secure means available.
Use prescribed radio-telephone procedures to transmit clear
text messages by voice radio.
Use prescribed authentication
Carefully consider replies before answering inquiries received
This reduces the possibility of a slip of the
tongue which may give out information that may aid the enemy.
Practice and maintain a high standard of net discipline at all
Use message books in preparing messages for transmission.