Giga-tronics 8003 - Page 189

Remote Operation
Manual 20791, Rev. C, June 2001 3-47
TTL-Triggered Fast-CW Measurement Programming Example
10 !*********************************************************
20 ! PROGRAM TO DEMONSTRATE AN APPLICATION OF TTL-TRIGGERED
30 ! FAST CW MEASUREMENTS
40 !
50 ! COPYRIGHT 2001 GIGA-TRONICS INC.
60 !
70 ! This program assumes:
80 ! 1) Analyzer at GPIB address 4
90 ! 2) Gigatronics 7200 Sweeper on the system bus at GPIB address 20
100 ! 3) Sensors plugged into A and B channel inputs
110 !
120 !***************************************************************
130 !
140 OPTION BASE 1
150 DIM Buffer a(181),Buffer b(181)
160 !
170 ! FIRST CONFIGURE THE ANALYZER
180 CLEAR 704 ! Send device clear to preset the analyzer
190 OUTPUT 704;READOUT! Numeric screen format
200 OUTPUT 704;POWER 1,A;POWER 2,C;CHAN 3;OFF;CHAN 4;OFF
210 ! Channel 1 reads incident power, chan 2 reads output power
220 !
230 ! SET UP GIGATRONICS 7200 SIGNAL GENERATOR IN DIGITAL STEP SWEEP MODE
240 OUTPUT 720;GA2GZ! Start frequency of 2 GHz
250 OUTPUT 720;GB20GZ! Stop frequency of 20 GHz
260 OUTPUT 720;GC100MZ! Step frequency of 100 MHz
270 OUTPUT 720;GD10MS! Step dwell time of 10 ms
280 OUTPUT 720;PL0DB! Output power level of 0 dBm
290 OUTPUT 720;RF1! Turn the RF on
300 WAIT 3! Wait for the sig gen to set up parameters
310 !
320 !...............................................................
330 ! MEASUREMENT OF INCIDENT AND OUTPUT POWER DURING DIGITAL STEP SWEEP
340 ! USING TTL TRIGGER TO MAKE 8003 POWER READINGS
350 !
360 OUTPUT 704;PWR 1;T3;ITEMS 181
370 WAIT 1! IMPORTANT to allow analyzer to process trigger mode change
380 ! TTL trigger mode with 501 item buffer on channels 1 and 2
390 ! Analyzer is now armed and ready. Any TTL triggers received
400 ! will trigger a reading on each channel and stuff in buffer
410 !
420 OUTPUT 720;D2! Now, trigger synthesizer to take a single sweep
430 WAIT 10! Wait for step sweep to finish
440 !
450 OUTPUT 704;OUTPUT 1! Tell analyzer to output data
460 ENTER 704;Buffer a(*),Buffer b(*)
470 ! Analyzer outputs channel A buffer first, then chan B buffer
480 PRINT Buffer a(*);
490 PRINT Buffer b(*);
500 !
510 OUTPUT 704;POWER 1;T0! Good housekeeping to return analyzer
520 ! to display update mode
530 WAIT 1
540 END