Vaisala WMS302 Uživatelská příručka stáhnout pdf (Strana 36)

User's Guide ______________________________________________________________________

34 ___________________________________________________________________M210630EN-B

UHF Radio Modem

0201-011

Figure 18 UHF Radio Modem SATELLINE 3AS

The SATELLINE 3AS UHF radio modem is a half-duplex radio

modem suitable for high-speed data applications. This radio modem

offers high speed data transmission up to 40 km Line-Of-Sight (LOS).

As a UHF radio modem, it provides the data speeds 19200 bps at 25 kHz

and 9600 bps at 12.5 kHz in the air. RS interface data speed is user

selectable from 300 to 38400 bps. The connection between data logger

and the radio modem is established by using RS-232.

Repeater Function

Message Routing is a built-in feature in the SATELLINE-3AS

modems, which makes it easier to build up a large radio modem

network. Message Routing features a versatile radio protocol, which

takes care of routing messages across a radio modem network. Only one

radio channel is required even in large networks. Any radio modem in

the network can act as a repeater and have a weather station interfaced

as well. The repeater can also be chained allowing message

transmission through several repeaters/weather stations.

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