diff --git a/python/trx/radio_if.py b/python/trx/radio_if.py
index e0678ab..82491a8 100644
--- a/python/trx/radio_if.py
+++ b/python/trx/radio_if.py
@@ -281,3 +281,8 @@
 	def set_tx_gain(self, gain):
 		self.phy_sink.set_gain(gain, 0)
 		self.tx_gain = gain
+
+	def set_ta(self, ta):
+		print("[i] Setting TA value %d" % ta)
+		advance_time_sec = ta * self.GSM_SYM_PERIOD_uS * 1e-6
+		self.tx_time_setter.set_timing_advance(advance_time_sec)