ADEUNIS ARF73 Bedienungsanleitung PDF herunterladen (Seite 8)

RF73

User Guide

Ref. 09-07-V1-smn p 6

Radio communication

Radio communication is performed when the modem is set in transceiver

mode (this is the default at power-up).

The radio data rate is fixed to 9600bps.

The output power may be programmed to 0.5W, 2W or 4W to either optimize

covered range or power consumption.

Radio channels

The S250 registers determined the center frequency of the bandwidth of the

modem. The modem is calibrated during factory process on this central

frequency which can not be changed by using command mode. For this

reason, S250 is a read only register.

By default, the modem is delivered with a predefined frequency table

recorded in S200 register. The central frequency corresponding to the S250

referred has position 0.

The frequency table can freely (with respect of 12.5kHz of spacing) be

changed using command mode of the product in a range of +/-3.5MHz

around the central frequency displayed in S250. Note that the frequency

must be written with 4 digits after the point even if they are zeros. Each new

frequency must be separated by entering a <CR> char.

The channel selected from the frequency table for radio transmission and

reception is set in S201 register. S201=0 corresponds to the first channel of

the frequency table, S201=15 is the last one.

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ADEUNIS ARF73 Bedienungsanleitung Seite 8