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7.2.4 Reception (RX) measurement
(1) Setting of parameter for RX measurement
<Example 3.1> Setting parameters for RX measurement (measurement signal,
BER input interface, etc.) for MT8801C.
1) Project file: SMPL301.MAK
1 FORM3Ø1.FRM
2 INITØØ1.BAS Uses the code file of the initialization mod-
ule in paragraph 7.2.2.
3 SETRX.BAS This is the code file of parameter setting
module for RX measurement.
4 VBIB.BAS
5 NIGLOBAL.BAS
6 ProjWinSize=87,394,243,136
7 ProjWinShow=2
2) Form file: FORM301.FRM
The following procedures are added and described.
1 Sub Form3Ø1_click ()
2 Call initial_gpib' Calls GPIB initialization routine.
3 Call Set_RX_parameter'
Calls RX parameter setting routine.
4 End Sub
3) Code module file: SETRX.BAS
1 '-------------------------------------
2 ' MT88Ø1C GPIB Sample Program
3 ' Setup Digital RX Measure Parameters
4 '-------------------------------------
5'
6'
7'
8 Sub Set_RX_parameter ()
9'
1Ø Call ibwrt(Ans%, "SYS IS136")'
Selects IS-136 measuring system.
11 Call ibwrt(Ans%, "PNLMD SYSTEM")'
Moves to system setting screen.
12 Call ibwrt(Ans%, "RFINOUT MAIN")'
Uses Main Input/Output connector.
13 Call ibwrt(Ans%, "PNLMD TESTER")'
Sets measurement mode to “TX/RX
tester.”
7.2 Sample Program (Example of Program Using Visual Basic)