diff --git a/transmit.py b/transmit.py
index 1f2fa830..c7d79f8b 100644
--- a/transmit.py
+++ b/transmit.py
@@ -302,7 +302,7 @@ def start_repeater(tx_freq_hz, rx_freq_hz):
 	global txLed
 	print("Starting repeater")
 
-	if abs(rx_freq_hz - 3 * tx_freq_hz) < 10.0: 
+	if abs(rx_freq_hz - 3 * tx_freq_hz) < 10000: 
 		tx_freq_hz = tx_freq_hz + 30000
 		print("Adjusting Repeater TX frequency to avoid 3rd harmonic RX")