diff --git a/ohmpi/hardware_components/mb_2023_0_X.py b/ohmpi/hardware_components/mb_2023_0_X.py
index e43794d95fd3247a96d18e93aa3ac29067e490e7..15049a12c5a429a3228eaa830062d73946f740c6 100644
--- a/ohmpi/hardware_components/mb_2023_0_X.py
+++ b/ohmpi/hardware_components/mb_2023_0_X.py
@@ -159,6 +159,7 @@ class Tx(TxAbstract):
     def polarity(self, polarity):
         print(polarity)
         assert polarity in [-1, 0, 1]
+        print(f'asserted polarity: {self.polarity}')
         self._polarity = polarity
         if polarity == 1:
             self.pin0.value = True