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Table 3 Specific characteristics for the different system

From: An automatic system for continuous monitoring of CO2, H2S, SO2and meteorological parameters in the atmosphere of volcanic areas

Direct computer connection

 

   Baud rate

from 600 to 9600 bps

Radio modem

 

   Baud rate

600 or 1200 bps

   Frequency

VHP or UHF

   Maximum distance

150 km

Cellular modem

 

   Baud rate

9600 bps

   Frequency

900 MHz

   Coverage

Depending on the company

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Geochemical Transactions

ISSN: 1467-4866

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