§ 41. Mr. HANLEYasked the Postmaster-General the number of cases of electrical interference with broadcast receivers by tramways and trolley-omnibuses, by oscillation, and by other electrical devices investigated by his Department during the last year, and the number of remedies effected in each case?
§ The POSTMASTER-GENERAL (Sir Kingsley Wood)As the reply includes a number of statistics I will, with my hon. Friend's permission, circulate it in the OFFICIAL REPORT.
§ Following is the reply:
§ Statistics in regard to cases of interference with broadcast reception are not readily available for last year, but the 693 following analysis of the complaints received during the six months ended the 29th February, 1932, may be taken as fairly representative:
| Cause of interference. | Total number of complaints received. | Number of cases in which remedies were effected. |
| Tramways and Trolley Omnibuses. | 150 | 90 |
| Oscillation | 1,930 | 1,540 |
| Other electrical devices | 4,150 | 3,110 |
| Totals for 6 months | 6,230 | 4,740 |
§ The majority of the remaining 1,490 complaints are still under investigation. In a few cases remedial measures could not be effected because the owners of the interfering apparatus refused either to permit investigation or to adopt the remedies suggested by the Post Office.