diff --git a/avrrfm.c b/avrrfm.c
index 45db55d..53ed900 100644
--- a/avrrfm.c
+++ b/avrrfm.c
@@ -48,7 +48,9 @@
 #endif
 
 /* 1 int = 8 seconds */
-static volatile uint8_t ints = 0;
+static volatile uint8_t wdInts = 0;
+
+static volatile uint8_t t0Ints = 0;
 
 /* Temp. label coordinates */
 static x_t xl = 0;
@@ -58,7 +60,11 @@
 static width_t width = 0;
 
 ISR(WDT_vect) {
-    ints++;
+    wdInts++;
+}
+
+ISR(TIMER0_COMPA_vect) {
+    t0Ints++;
 }
 
 /**
@@ -132,6 +138,20 @@
 }
 
 /**
+ * Sets up the timer.
+ */
+static void initTimer(void) {
+	// timer0 clear timer on compare match mode, TOP OCR0A
+	TCCR0A |= (1 << WGM01);
+	// timer0 clock prescaler/1024/255 ~ 46 Hz @ 12 MHz ~ 61 Hz @ 16 MHz
+	TCCR0B |= (1 << CS02) | (1 << CS00);
+	OCR0A = 255;
+
+	// enable timer0 compare match A interrupt
+	TIMSK0 |= (1 << OCIE0A);
+}
+
+/**
  * Enables SPI.
  */
 static void enableSPI(void) {
@@ -212,6 +232,7 @@
     if (!RECEIVER) {
         // used only for tx
         initWatchdog();
+        initTimer();
     }
 
     // enable global interrupts
@@ -220,7 +241,6 @@
     printString("Hello Radio!\r\n");
     
     uint8_t node = RECEIVER ? NODE1 : NODE2;
-
     initRadio(868600, node);
     if (RECEIVER) {
         initDisplay();
@@ -235,13 +255,24 @@
         // _delay_ms(1000);
 
         if (!RECEIVER) {
-            if (ints % MEASURE_INTS == 0) {
-                ints = 0;
+            if (wdInts % MEASURE_INTS == 0) {
+                wdInts = 0;
 
                 enableSPI();
                 wakeTSens();
                 wakeRadio();
                 transmitTemp(NODE1);
+
+                // TODO timeout
+                /*
+                uint8_t response[1];
+                receivePayload(response, sizeof (response));
+                // receiver RSSI
+                int8_t rssi = divRoundNearest(response[0], 2);
+                printUint(rssi);
+                _delay_ms(10);
+                 */
+
                 sleepTSens();
                 sleepRadio();
                 disableSPI();
@@ -251,6 +282,11 @@
             if (flags.ready) {
                 uint8_t rssi = readRssi();
                 uint16_t raw = readTemp();
+
+                _delay_ms(10);
+                uint8_t payload[] = {rssi};
+                transmitPayload(payload, sizeof (payload), NODE2);
+
                 displayTemp(rssi, flags.crc, raw);
                 startReceive();
             }
diff --git a/rfm69.c b/rfm69.c
index 090a798..8f77849 100644
--- a/rfm69.c
+++ b/rfm69.c
@@ -125,7 +125,7 @@
     regWrite(RX_BW, 0x54);
 
     // RX_BW during AFC (default 0x8b)
-    regWrite(AFC_BW, 0x8a);
+    regWrite(AFC_BW, 0x54);
     
     // AFC auto on
     // regWrite(AFC_FEI, 0x04);
@@ -183,6 +183,10 @@
     printString("Radio init done\r\n");
 }
 
+void setTimeoutRxStart(uint8_t value) {
+    regWrite(RX_TIMEOUT1, value);
+}
+
 void sleepRadio(void) {
     setMode(MODE_SLEEP);
 }
diff --git a/rfm69.h b/rfm69.h
index 67847e4..050307a 100644
--- a/rfm69.h
+++ b/rfm69.h
@@ -84,6 +84,13 @@
 void initRadio(uint64_t freq, uint8_t node);
 
 /**
+ * Sets "RxStart" timeout to the given value.
+ * 
+ * @param value
+ */
+void setTimeoutRxStart(uint8_t value);
+
+/**
  * Shuts down the radio.
  */
 void sleepRadio(void);