Military radio
device · 1914 · Electric age
Field radio communication.
What it is made of
- Antenna — has part. It needs an antenna.
- Radio transceiver — has part. A radio unit.
- Military radio battery pack — has part. Power.
Principles and materials it uses
- Cipher machine — uses. Encryption.
- Steel — is made of. The hull is steel.
What it is a kind of
- Radio — is a kind of. Radio.