Operating Manual R&S SMIQ - Volume 1 - Rohde & Schwarz

SMIQTest ProceduresSELECT CONTROL LIST...CURRENT: CLIST0EDIT CONTROL LIST... FREE 00104080 LEN 00000019-SYMBOL----------BGATE-LATT--CW----HOP---TRIG2-TRIG1--00000001 1 0 0 0 0 000000002 1 1 0 0 0 000000003 0 1 1 0 0 000000004 0 0 1 1 0 000000005 0 0 0 1 1 000000006 0 0 0 0 1 100000007 0 0 0 0 0 100000008 0 0 0 0 0 000000010 1 1 1 1 1 100000012 0 0 0 0 0 000000018 1 1 1 1 1 100000019 0 0 0 0 0 0 The bit clock measured at the BIT CLK output must have afrequency of 8 MHz and HCT level: Two symbol-clock periods following the signal TRIGGER OUT.3,the six CONTROL signals appear. A CONTROL sequence is 19symbol-clock periods long, repeating cyclically. The table belowshows, the 19 states of each CONTROL signal on the rising edgeof SYMB CLK.Symbol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19BURST-GATE 1 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0LEV-ATT 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0CW 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0HOP 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 1 0TRIGOUT 2 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 0 0 1 0TRIGOUT 1 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 1 05.3.15.3 Interface SERDATATest equipment Controller (table 5-1, item 4)Storage oscilloscope (table 5-1, pos. 3) at output connectors SYMBOLCLOCK and DATA.Test methodMeasurementData are transmitted from the controller via the serial RS232 interfaceto the SERDATA connector of the SMIQ, where they are used fordigital modulation. Transmission is checked at the output connectorsSYMBOL CLOCK and DATA. The test can be made by any RS232 terminal program. Theinterface has to be configured as follows:19200 bps, parity none, 8 bit, 1 stopbit, hardware handshake on.A periodic data sequence of 0011 (binary) is sent to the SERDATAconnector with 19200 bps. In ASCII code, this is equivalent to asequence of 33333. Setting to be made on SMIQUTILITIES:SYSTEM:SERDATA:BAUDRATE 19200 bpsDigital modulation, type Pi/4 DQPSK withSymbol rate 5 kSymb/s,Source – SERDATA The frequency of signals at SYMBOL CLOCK is to be 5 kHz(±5%), period duration 200 µs. The frequency of signals at DATAis to be 2.5 kHz (±5%), period duration 400 µs.1125.5555.03 5.43E-9