X8200 Datasheet, PDF (19/19 Pages) rfsolutions.ltd – Synthesised Radio Modem

Synthesised Radio Modem
X8200
X8200HP
If there are other radio modems or radio telemetry systems operating on adjacent frequencies
on the same site then the antenna on your system must be mounted at least 3m away from
the antenna of the other systems. This will prevent the transmitter of one system interfering
with the receiver of the other.
Corrupted Data
Corrupted data can be caused by poor power supplies.
Check that the power supply is regulated at 12V and has a ripple of less than 50mV on load.
It must also be capable of delivering an inrush current of 0.7Amps for 20mSec. when the
radio modem starts its transmit cycle.
The ripple voltage can be measured with a voltmeter set on A.C. volts.
Radio Path
The radio path can be tested by using the Access Remote Modem option. If the remote
modem is in radio range and is receiving good data it will respond by displaying the signal
strength of the remote modem in the RSSI option.
If the remote modem does not respond then use the Key Transmitter option to permanently
transmit a carrier. Go to the distant modem and observe the RX LED. It should be on.
Alternatively access the set up menu and select the RSSI option. A minimum of 3 bars
should be shown.
DS8200-2 April ’07
©2007 RF Solutions Ltd, www.rfsolutions.co.uk
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