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Eurosignal is a European paging service standardised by CEPT for the one-way analogue transmission of tone-only signals (call class 0) to mobile receivers (Eurosignal receivers).

Four channels are allocated internationally to the Eurosignal service: Channel A on 87.340 MHz, Channel B on 87.365 MHz, Channel C on 87.390 MHz and Channel D on 87.415 MHz. In Germany, channels A and B are used for transmission; modulation is almost exclusively in amplitude modulation, in exceptional cases also in frequency modulation. Since the transmitting subscriber does not receive any acknowledgement in paging services, particularly high demands are placed on the transmission procedures. In addition, a large code capacity is required for several hundred thousand call numbers.

The coding used at Eurosignal is defined in CEPT Recommendation T/R6 and is based on the principle of selective calling systems. In this case, the code signal to be transmitted consists of several frequencies sent in chronological order. Since Eurosignal transmits neither text nor speech, but only a tone sequence of four tones, the subscriber must define his own meaning of the call signal on the basis of the tone sequence. In addition to the individual call, there is also the possibility of a group call, in which the same call number is assigned to a subscriber group.

Call activation takes place from connections of the telephone network, ISDN and mobile phone networks, C-network and D-network. In Germany, there is nationwide coverage by DeTeMobil in three paging areas. Other countries: Switzerland, France, Belgium and the Netherlands.

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Englisch: Eurosignal
Updated at: 04.03.2008
#Words: 444
Translations: DE