| Year | 1930 |
| Date | 02-Jan |
| Volume | 62 |
| Issue | 1,495 |
| Page | 17 |
| Category | Electronic |
| Part | |
| Title | The Selectivity of Wireless Receivers |
| Author | W.Greenwood |
| Notes | Interference caused by very near station frequency, reduced interference with very selective receiver, ideal conditions |