ITC 220 Base Station, Locomotive & Wayside Radio Transceiver Field Service Guide PN 0046300120 Rev. A
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5.9.3
MEASURE FULL-RATE RECEIVER SENSIT IVITY
5.9.3.1
PRIMARY/RX1 OR ANT RECEIVER MEASUREMENT (ALL TRANSCEIVERS)
To begin the test, make sure the E4438C signal generator is outputting the proper wave form into the RX1 port (for
Base Station and Locomotive) or ANT port (for Wayside) on the transceiver. Next, issue the applicable set of commands
in XtermW.
Commands for Base Station Transceiver:
STOP
SCHED,DEL,ALL
DSP_MODE,IDLE
DSP_MODE,TEST
L1_TEST,SET,RXPATH,P
L1_TEST,SET,RXENABLE,3,ON
L1_TEST,SET,RXFREQ,value,3
DSP_CMD,SET,BER,RAW
L1_TEST,START,RX
DSP_CMD,BAC,3
SCHED,I,6,L1_TEST,GET,ERRCOUNTS,3,3
where:
value
equals the desired frequency of operation.
Once observation of radio performance is complete, turn off transmit operations by typing:
L1_TEST,STOP
Commands for Locomotive or Wayside Transceiver:
STOP
SCHED,DEL,ALL
DSP_MODE,IDLE
DSP_MODE,TEST
L1_TEST,SET,RXPATH,P
L1_TEST,SET,RXENABLE,3,ON
L1_TEST,SET,RXFREQ,value,3
DSP_CMD,SET,BER,RAW
L1_TEST,START,RX
SCHED,I,6,L1_TEST,GET,ERRCOUNTS,3,3