1.13 Frequency Scan
Channel scan
Scan is the function where the receiver watches 10/group user or ITU channels in succession at predetermined intervals. The scan-stop signal level and scan-stop time can be changed on sys- tem codes 9951 and 9952, respectively. AGC is automatically turned on when scanning is acti- vated.
1. Recall user or ITU channel.
User channels
User channels are divided into 20 groups in the scan mode as below.
Scan Group | User Channel No. |
1 | 0-01 to 0-09 |
| |
2 | 0-10 to 0-19 |
| |
3 | 0-20 to 0-29 |
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4 | 0-30 to 0-39 |
| |
5 | 0-40 to 0-49 |
| |
6 | 0-50 to 0-59 |
| |
7 | 0-60 to 0-69 |
| |
8 | 0-70 to 0-79 |
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9 | 0-80 to 0-89 |
| |
10 | 0-90 to 0-99 |
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11 | 1-00 to 1-09 |
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12 | 1-10 to 1-19 |
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13 | 1-20 to 1-29 |
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14 | 1-30 to 1-39 |
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15 | 1-40 to 1-49 |
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16 | 1-50 to 1-59 |
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17 | 1-60 to 1-69 |
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18 | 1-70 to 1-79 |
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19 | 1-80 to 1-89 |
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20 | 1-90 to 1-99 |
| |
Figure 1-12 Scan groups
