diff --git a/transmit.py b/transmit.py
index 1240e772..81270ce3 100644
--- a/transmit.py
+++ b/transmit.py
@@ -537,6 +537,8 @@ def update_doppler():
 		rx_doppler_freq_hz = rx_doppler_start_hz + rx_doppler_shift_hz
 		print(f"Rx Doppler shift: {rx_doppler_freq_hz:.0f}")
 		rx = "{:.4f}".format(rx_doppler_freq_hz/1e6)
+		if (mode == 'e'):
+			tx = "{:.4f}".format(tx_doppler_freq_hz/1e6)
 		program_fm(rx,tx,rxpl_value,sq,txpl_value)
 	except:
 		print("update_doppler failed")