| Test items | Technical standards | |||
|---|---|---|---|---|
| Radio microphone for hearing
aid (super-narrow) |
Radio microphone for hearing
aid (narrow) |
Radio microphone for hearing
aid (wide) |
||
| Class of emissions | F3E F8W |
F3E F8W |
F3E F8W |
|
| Assigned frequency or designated frequency | 75.2125 - 75.5875MHz | 75.2125 - 75.5875MHz | 75.2125 - 75.5875MHz | |
| Number of channels and channel separation | 12.5kHz | 25kHz | 62.5kHz | |
| Tolerance of frequency (×10-6) |
20 | 20 | 20 | |
| Tolerance of occupied bandwidth | 20kHz | 30kHz | 80kHz | |
| Tolerance of spurious and unwanted emission intensity | 2.5µW | 2.5µW | 2.5µW | |
| Antenna power | Designated value | 0.01W or less | 0.01W or less | 0.01W or less |
| Tolerance | +20%, -50% | +20%, -50% | +20%, -50% | |
| Tolerance of adjacent channel leakage power | -60dB (25kHz separation, 20kHz bandwidth) |
-60dB (50kHz separation, 30kHz bandwidth) |
-60dB (125kHz separation, 80kHz bandwidth) |
|
| Limit of secondary radiated emissions | 4nW | 4nW | 4nW | |
| Other equipment or function |
|
|
|
|
| Note |
|
|
|
|
| Notice: Regulations in the Ordinance Regulating Radio Equipment shall have priority over the descriptions in the sheet when any difference is found between them. Further above descriptions do not cover all of the regulations. |