| Year | 1922 |
| Date | 20-Apr |
| Volume | 46 |
| Issue | 1,095 |
| Page | 390 |
| Category | Radio Engineering |
| Part | |
| Title | How to Enter the Wireless Service of the Mercantile Marine |
| Author | Captain H. de A.Donisthorpe |
| Notes | A circuit for practice, wireless installation on a modern liner |