diff --git a/src/main.cpp b/src/main.cpp
index 023771b..7a44d8b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -33,7 +33,9 @@ void setup()
 
   Serial.println("starting up modem");
   float bitrate = globcfg.tx_baud / 1000.0;
-  int state = radio.beginFSK(globcfg.tx_freq, bitrate, globcfg.tx_dev);
+  float freq = globcfg.tx_freq + (float)((float)globcfg.tx_tune / 1000.0);
+  Serial.printf("tuned to %0.6f\n", freq);
+  int state = radio.beginFSK(freq, bitrate, globcfg.tx_dev);
   if (state == 0) {
     Serial.println(F("success!"));
   } else {
@@ -42,7 +44,6 @@ void setup()
     #ifdef SMART_POC_DISPLAY
     display_update_state("modem fail");
     #endif
-    // TODO: add solution to this
     while (true) {
       digitalWrite(PIN_LED, HIGH);
       delay(850);