Added carrier frequency offset correction to radio_if
diff --git a/python/trx/change_sign_of_dict_elements.py b/python/trx/change_sign_of_dict_elements.py
new file mode 100644
index 0000000..fd7c585
--- /dev/null
+++ b/python/trx/change_sign_of_dict_elements.py
@@ -0,0 +1,30 @@
+"""
+Embedded Python Blocks:
+
+Each this file is saved, GRC will instantiate the first class it finds to get
+ports and parameters of your block. The arguments to __init__ will be the
+parameters. All of them are required to have default values!
+"""
+
+from gnuradio import gr
+from pmt import *
+
+class change_sign_of_dict_elements(gr.basic_block):
+ def __init__(self): # only default arguments here
+ gr.basic_block.__init__(
+ self,
+ name='Change sign of elts in dict',
+ in_sig=[],
+ out_sig=[]
+ )
+ self.message_port_register_in(intern("dict_in"))
+ self.message_port_register_out(intern("dict_out"))
+ self.set_msg_handler(intern("dict_in"), self.change_sign)
+
+ def change_sign(self, msg):
+ if is_dict(msg):
+ d = to_python(msg)
+ #print d
+ for key, value in d.items():
+ d[key] *= -1
+ self.message_port_pub(intern("dict_out"), to_pmt(d))