python/trx: follow GNU Radio class naming conventions
diff --git a/python/trx/radio_if.py b/python/trx/radio_if.py
index c162f69..40fcabb 100644
--- a/python/trx/radio_if.py
+++ b/python/trx/radio_if.py
@@ -32,7 +32,7 @@
 from gnuradio import blocks
 from gnuradio import gr
 
-class RadioInterface(gr.top_block):
+class radio_if(gr.top_block):
 	# PHY specific variables
 	samp_rate = 2000000
 	shiftoff = 400e3