diff --git a/src/hm/Communication.h b/src/hm/Communication.h
index e55d60f6..ca76cc04 100644
--- a/src/hm/Communication.h
+++ b/src/hm/Communication.h
@@ -134,10 +134,15 @@ class Communication : public CommQueue<> {
                             DPRINT_IVID(DBG_INFO, q->iv->id);
                             DBGPRINT(F("request timeout: "));
                             DBGPRINT(String(q->iv->radio->mRadioWaitTime.getRunTime()));
-                            DBGPRINTLN(F("ms"));
+                            DBGPRINT(F("ms"));
+                            if(INV_RADIO_TYPE_NRF == q->iv->ivRadioType) {
+                                DBGPRINT(F(", ARC "));
+                                DBGPRINTLN(String(q->iv->radio->getARC()));
+                            } else
+                                DBGPRINTLN("");
                         }
                         if(!q->iv->mGotFragment) {
-                            if(q->iv->ivRadioType == INV_RADIO_TYPE_CMT) {
+                            if(INV_RADIO_TYPE_CMT == q->iv->ivRadioType) {
                                 q->iv->radio->switchFrequency(q->iv, HOY_BOOT_FREQ_KHZ, (q->iv->config->frequency*FREQ_STEP_KHZ + HOY_BASE_FREQ_KHZ));
                                 mWaitTime.startTimeMonitor(1000);
                             } else {
diff --git a/src/hm/hmRadio.h b/src/hm/hmRadio.h
index d5e208b8..774a99a1 100644
--- a/src/hm/hmRadio.h
+++ b/src/hm/hmRadio.h
@@ -293,6 +293,10 @@ class HmRadio : public Radio {
             return mNrf24->isPVariant();
         }
 
+        uint8_t getARC(void) {
+            return mNrf24->getARC();
+        }
+
     private:
         inline bool getReceived(void) {
             bool isLastPackage = false;
diff --git a/src/hm/radio.h b/src/hm/radio.h
index 09bd9134..9cb14000 100644
--- a/src/hm/radio.h
+++ b/src/hm/radio.h
@@ -29,6 +29,7 @@ class Radio {
         virtual bool switchFrequencyCh(Inverter<> *iv, uint8_t fromCh, uint8_t toCh) { return true; }
         virtual bool isChipConnected(void) { return false; }
         virtual bool loop(void) = 0;
+        virtual uint8_t getARC(void) { return 0xff; }
 
         void handleIntr(void) {
             mIrqRcvd = true;