fixes again

kat_test/random/bs_cav_ybeta_misaligned_fsig_ybeta_2.kat

@@ -12,10 +12,10 @@ s s_cav_b 5000.0 nITM2b nETM1b
 bs ETM 1.0 0.0 0.0 20.0 dump dump nETM1 nETM1b
 attr ETM Rcx -2700.0
 attr ETM Rcy -2700.0
-attr ETM ybeta 1e-05
 pd2 tf1 9000000 0.0 $fs nITM1r
 cav c1 ITM nITM2 ITM nITM2b
 fsig sig1 ETM ybeta 1e-10 0.0 1.0
 maxtem 2
+xaxis ETM ybeta log 1e-8 1e-5 100
 noxaxis
 yaxis abs
\ No newline at end of file