diff --git a/ohmpi/ohmpi.py b/ohmpi/ohmpi.py
index 7d835f34b9b4efc527b8d0eb85d602cf7caecb5d..78df6fe1f46e7b937c5bbda36af5f7fd194eba11 100644
--- a/ohmpi/ohmpi.py
+++ b/ohmpi/ohmpi.py
@@ -821,12 +821,14 @@ class OhmPi(object):
         for i in range(0, quads.shape[0]):
             quad = quads[i, :]  # quadrupole
             self._hw.switch_mux(electrodes=list(quads[i, :2]), roles=['A', 'B'], state='on')
+            print('tx', self._hw.tx.voltage)
             self._hw._vab_pulse(duration=0.2, vab=tx_volt)
+            print('tx', self._hw.tx.voltage)
             current = self._hw.readings[-1, 3]
-            if self._hw.tx.pwr.voltage_adjustable:
-                print('tx',self._hw.tx.voltage)
-                if self._hw.tx.voltage != tx_volt:
-                    self._hw.tx.voltage = tx_volt
+            # if self._hw.tx.pwr.voltage_adjustable:
+            #     print('tx',self._hw.tx.voltage)
+            #     if self._hw.tx.voltage != tx_volt:
+            #         self._hw.tx.voltage = tx_volt
             vab = self._hw.tx.pwr.voltage
             print(vab)
             time.sleep(0.2)