Agilent Technologies 75000 Series C, E1445A Agilent E1445A Service Manual Adjustments 103

AC Flatness Adjustment Procedure (cont’d)
Example Program (cont’d)
3080 FOR I=1 TO Max_con
3090 Cal_real(I)=Cal_reflec t(I)
3100 IF I=1 THEN Cal_real(I)= Cal_reflect(I)/Scale(1) ! M_plus
3110 IF I=2 THEN Cal_real(I)=Cal_real(I)/Scale(11) ! P_base
3120 IF I=3 THEN Cal_real(I )=Cal_reflect(I)/Scale(2) ! M_minus
3130 IF I=4 THEN Cal_real(I)= Cal_reflect(I)/Scale(3) ! M_adj
3140 IF I=5 THEN Cal_real(I)=Cal_real(I)/Scale(11) ! N_base
3150 IF I>5 AND I<13 THEN Cal_real(I)=Cal_real(I)/Scale(10) !Filter and
3160 ! ATTN gain errors
3170 IF I=13 THEN Cal_real(I) =Cal_reflect(I)/Scale(4) ! M_off
3180 IF I=14 THEN Cal_real(I) =Cal_reflect(I)/Scale(5) ! M_cust
3190 IF I=15 THEN Cal_real(I) =Cal_reflect(I)/Scale(6) ! Vpwro
3200 IF I=16 THEN Cal_real(I) =Cal_reflect(I)/Scale(6) ! Vpwri
3210 IF I=17 THEN Cal_real(I) =Cal_reflect(I)/Scale(7) ! Vbuf
3220 IF I=18 THEN Cal_real(I) =Cal_reflect(I)/Scale(8) ! M_sum
3230 IF I=19 THEN Cal_real(I) =Cal_reflect(I)/Scale(9) ! B_sum
3240 ! Z_inc_0db (not scaled)
3250 ! Z_inc_14db (not scaled)
3260 IF I>21 THEN Cal_real(I)=Cal_real(I)/Scale(10) ! Zout gain errors
3270 NEXT I
3280 !
3290 DEALLOCATE Scale(*),Cal_reflect(*)
3300 SUBEND
3310 !
3320 Valid_cons:SUB Valid_cons(Results(*),INTEG ER Cal _pr oblem )
3330 COM @Afg,@Dmm,@Pwr_mtr,@Analyzer,Secur e_code$
3340 COM /Flat/ INTEGER Num_points,Max_con
3360 Max_con=25
3370 Cal_problem=0
3380 !
3390 ALLOCATE Cal_real(1:Max_con)
3400 !
3410 CALL Read_dc_cal_con(Cal_real(*))
3420 !CHECK FOR VALID CAL
3430 M_plus=Cal_real(1) ! key cal constant
3440 P_base=Cal_real(2) ! +base
3450 M_minus=Cal_real(3) ! key cal constant
3460 M_adj=Cal_real(4) ! key cal constant
3470 N_base=Cal_real(5) ! -base
3480 !
3490 !Check that cal constants are reasonable--if not, use nominal values
3500 IF (M_plus<-.005 OR M_plus>-.003) THEN M_plus=-3.83 4E -3
3510 IF (M_minus<-.005 OR M_minus>-.003) THEN M_minus=-3.8 34E- 3
3520 IF (M_adj<-.0012 OR M_adj>-.0009) THEN M_adj=-.001021
3530 IF (P_base<3180 OR P_base>3889) THEN P_base=353 5
3540 IF (N_base<10 OR N_base>245) THEN N_base=128
3550 !
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Agilent E1445A Service Manual Adjustments 103