EN
77
To solve this problem and to rationalize the communication the sub tones appeared,
the analogical type CTCSS (usually the only ones of which dispose the economic
handhelds) and the digital DCS (only located in the semi-professional or professional
transceivers).
Focus on the most commons, the analogical CTCSS sub tones. Normally they go from 1
to 38 and also in the case of the channels; each number corresponds to a frequency,
see appendix TECHNOLOGICAL PARAMETERS table equivalent of analogical CTCSS sub
tones on page 71.
Applying the sub tones to the example of the building, now we would have a building
of 8 floors equally, but with 38 housings per plant, this gives us a total of 304 housings
in the building.
Housing 1
Housing 25 Floor 1
Housing 38
Floor 1 (
Channel 1
)
Floor 2 (
Channel 2
)
Floor 3 (
Channel 3
)
Floor 4 (
Channel 4
)
Floor 5 (
Channel 5
)
Floor 6 (
Channel 6
)
Floor 7 (
Channel 7
)
Floor 8 (
Channel 8
)