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| RDS / RBDS SETTINGS (FM Version only) | ENG | |||||||
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| AF1 |
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| AF2 | Note that the frequency of transmitter C is not included | |||
| Tx B lists |
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| f Tx B |
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| f Tx D | in the list, since the latter’s coverage area does not | |||||
| (tuning frequency: f Tx B) |
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| overlap with that of transmitter A |
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| f Tx D |
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| f Tx B |
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| AF1 |
| AF2 |
| AF3 |
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| Coverage area D partially overlaps that of both | ||
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| f Tx D |
| f Tx B |
| f Tx E | ||||
| Tx D lists |
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| transmitters B and E, and thus it is recommended to | ||||||
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| load the lists for both adjacent transmitters. Be careful | |||
| (tuning frequency: f Tx D) |
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| f Tx B |
| f Tx D |
| f Tx D | to list all frequencies above the tuning frequency in | ||||
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| f Tx E |
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| ascending order. |
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| AF1 |
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| AF2 | Note that the frequency of transmitter B has not been | |||
| Tx E lists |
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| f Tx E |
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| f Tx D | ||||||
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| included in the list, since its coverage area does not | |||||||
| (tuning frequency: f Tx E) |
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| overlap with that of transmitter E. |
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| f Tx D |
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| f Tx E |
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METHOD B
As mentioned earlier, Method B is used with high numbers of alternative frequencies and/or when the transmitter also has frequencies that broadcast different radio program at various times of day (splitting, local programming, etc.).
In the latter instance, the mobile receiver should check whether the AF is broadcasting the same content before selecting another frequency.
Each list begins with the tuning frequency (for which the list is valid) and then contains up to 12 pairs of frequencies in sequence, each containing the tuning frequency and an alternate. If there are more than 12 possible alternative frequencies, the list continues in other lists in the same manner.
The order of the frequencies in each pair follow the rules below:
-If the order is increasing, the alternative frequency broadcasts the same programming as the tuning frequency.
-If the order is decreasing, the two frequencies have different programming.
Returning to the example of transmitters B, D and E in the previous paragraph (in which the coverage areas of D and E do not overlap), two more lists will be assigned to transmitter B, sorted according to the above criteria to take into account any different programming by some of the AFs.
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