diff --git a/tnc/data_handler.py b/tnc/data_handler.py
index ceb35cb4..e4a8b976 100644
--- a/tnc/data_handler.py
+++ b/tnc/data_handler.py
@@ -33,7 +33,7 @@ class DATA():
 
     def __init__(self):
     
-        self.mycallsign = static.MYCALLSIGN # inital set of mycallsign. Will be overwritten later
+        self.mycallsign = static.MYCALLSIGN # initial callsign. Will be overwritten later
 
         self.data_queue_transmit = DATA_QUEUE_TRANSMIT
         self.data_queue_received = DATA_QUEUE_RECEIVED
@@ -265,7 +265,7 @@ class DATA():
                 structlog.get_logger("structlog").debug("PING RECEIVED....")
                 # = self.get_frequency_offset(freedv)
                 # we need to fix this later
-                frequency_offset = 0
+                frequency_offset = "0"
                 #print("Freq-Offset: " + str(frequency_offset))
                 self.received_ping(bytes_out[:-2], frequency_offset)