|
|
Technical standards |
||
|
|
|
||
| Class of emissions | F1D, F2D G1D |
||
| Assigned frequency or designated frequency | 426.25 - 426.8375MHz | 426.2625 - 426.8375MHz | |
| Number of channels or channel separation | Number of channels | 48 | 24 |
| Channel separation | 12.5kHz | 25kHz | |
| Tolerance of frequency (×10-6) | Type1 : 10 Type2 : 4 |
Type3 : 10 Type4 : 4 |
|
| Tolerance of occupied bandwidth | Type1 : 4kHz Type2 : 4 - 8.5kHz |
Type3 : 8.5 - 12kHz Type4 : 12 - 16kHz |
|
| Tolerance of spurious and unwanted emission intensity | 2.5µW | ||
| Antenna power | Designated value | 10mW or less | |
| Tolerance | +20%, -50% | ||
| Tolerance of adjacent channel leakage power | (1) For occupied bandwidth of 4kHz or less (Type 1):
 -40dB (12.5kHz detuning, ±2kHz
bandwidth)(2) For occupied bandwidth of 4 - 8.5kHz (Type 2): -40dB (12.5kHz detuning, ±4.25kHz
bandwidth)(3) For occupied bandwidth of 8.5 - 12kHz (Type 3): -40dB (25kHz detuning, ±6kHz
bandwidth)(4) For occupied bandwidth of 12 - 16kHz (Type 4): -40dB (25kHz detuning, ±8kHz
bandwidth) |
||
| Limit of secondary radiated emissions | 4nW | ||
| Other equipment or function | Interference prevention function | Shall automatically transmit or receive identification code. | |
| Transmission time restriction function | Shall suspend transmission within three (3) seconds after start of the transmission, and next transmission shall not be started within two (2) seconds. | ||
| 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. |
