Assuntos
34661 , Cultura , Organização Comunitária , Meios de Comunicação , Rádio , Participação da Comunidade , Planos de EmergênciaAssuntos
Telecomunicações , Planejamento em Desastres , Comunicação Manual , Manual de Referência , RádioRESUMO
The Venezuelan Seismological Network (RESVAC) has been operating with a VHS FM-FM Radio-Telemtry System for several years. The network which started in 1981, initially with one station, now consists of 21 short-period and 1 long-period station, with 16 of the short-period stations being radio-telemetered. It is essential for seismological studies that high quality data be produced by these stations. Even through the cost of maintenance is high, we have tried to keep it to a minimum. We are applying an analogue frequency modulation radiotelemetry method with low-power carrier in our seismological network. The transmission band is 220-235 MHz. The maximum transmission power is 500 mW. The antennas are Yagi type with horizontal polarization. Our Voltage Control Oscillator sensitivity is 5 V pp imput producing +-125 Hz deviation in the sub-carrier.
Assuntos
Rádio , Telemetria , Venezuela , Terremotos , Sistemas de InformaçãoRESUMO
El autor describe en terminos simples la forma y procedimientos sencillos que se utilizan para la mejor coordinación del campo de las comunicaciones durante las emergencias, distinguiendo tres elementos: el équipo para comunicación internacional, el équipo para comunicación nacional o continental y équipo para comunicación local directamente en areas afectadas