diff --git a/README.md b/README.md
index db35b64..bc46d61 100644
--- a/README.md
+++ b/README.md
@@ -18,12 +18,13 @@
 
 ![IMG_20250212_190518](https://github.com/user-attachments/assets/dd87b7de-c97d-4ecb-ab24-f5a34b849914)
 
-The receiver currently converts the raw temperature reading to °C and 
-displays it with the RSSI value and CRC result on a nice IPS TFT display.
-It responds to the transmitter as kind of ack with the RSSI, which 
-might be useful do to some sort of power management in the transmitter.
-The transmitter waits for this response with a timeout so it won't be blocked 
-and comsume a lot of power just because there is no response coming back.
+The receiver currently converts the raw temperature reading to °C and displays 
+it with the RSSI value, CRC result and transmitter output power on a nice IPS 
+TFT display. It responds to the transmitter as kind of ack with the RSSI, which 
+is used for some very basic power management in the transmitter, reducing the 
+supply current from 45 mA down to ~15 mA. The transmitter waits for this 
+response with a timeout so it won't be blocked and comsume a lot of power just 
+because there is no response coming back.
 
 ## Range
 
diff --git a/avrrfm.c b/avrrfm.c
index 0efbdf2..abb8326 100644
--- a/avrrfm.c
+++ b/avrrfm.c
@@ -179,7 +179,8 @@
  */
 static void transmitTemp(uint8_t node) {
     uint16_t temp = readTSens();
-    uint8_t payload[] = {(temp >> 8), temp & 0x00ff};
+    uint8_t power = getOutputPower();
+    uint8_t payload[] = {(temp >> 8), temp & 0x00ff, power};
     transmitPayload(payload, sizeof (payload), node);
     // printString("Transmitted\r\n");
 }
@@ -194,28 +195,31 @@
     if (len > 0) {
         // receiver RSSI
         int8_t rssi = divRoundNearest(response[0], 2);
-        printUint(rssi);
+        setOutputPower(rssi);
     }
 }
 
 /**
  * Converts the raw temperature to °C and lets it float around the display.
  * 
- * @param raw temperature
+ * @param rssi RSSI value
+ * @param crc CRC result
+ * @param temp temperature + info
  */
-static void displayTemp(uint8_t rssi, bool crc, uint16_t raw) {
+static void displayTemp(uint8_t rssi, bool crc, Temperature *temp) {
     uint8_t _rssi = divRoundNearest(rssi, 2);
-    int16_t tempx10 = convertTSens(raw);
-    div_t temp = div(tempx10, 10);
+    int16_t tempx10 = convertTSens(temp->raw);
+    div_t tdiv = div(tempx10, 10);
 
-    char buf[32];
+    char buf[42];
 
-    snprintf(buf, sizeof (buf), "RSSI: %4d dBm, CRC: %d", -_rssi, crc);
+    snprintf(buf, sizeof (buf), "RSSI: %4d dBm, CRC: %d, PA: %+3d dBm",
+            -_rssi, crc, -18 + (temp->power & 0x1f));
     const __flash Font *unifont = &unifontFont;
     writeString(0, 0, unifont, buf, WHITE, BLACK);
 
     snprintf(buf, sizeof (buf), "%c%d.%d°", tempx10 < 0 ? '-' : ' ',
-            abs(temp.quot), abs(temp.rem));
+            abs(tdiv.quot), abs(tdiv.rem));
 
     const __flash Font *dejaVu = &dejaVuFont;
     if (width > 0) fillArea(xo, yo, width, dejaVu->height, WHITE);
@@ -230,18 +234,19 @@
 }
 
 /**
- * Reads and returns the raw temperature.
+ * Reads and returns the raw temperature + other info.
  * 
- * @return raw temp
+ * @return temperature + info
  */
-static uint16_t readTemp(void) {
-    uint8_t payload[2];
+static Temperature readTemp(void) {
+    uint8_t payload[3];
     readPayload(payload, sizeof (payload));
-    uint16_t raw = 0;
-    raw |= payload[0] << 8;
-    raw |= payload[1];
+    Temperature temp = {0};
+    temp.raw |= payload[0] << 8;
+    temp.raw |= payload[1];
+    temp.power = payload[2];
 
-    return raw;
+    return temp;
 }
 
 int main(void) {
@@ -292,14 +297,14 @@
             PayloadFlags flags = payloadReady();
             if (flags.ready) {
                 uint8_t rssi = readRssi();
-                uint16_t raw = readTemp();
+                Temperature temp = readTemp();
 
                 // TODO delay?
                 _delay_ms(10);
                 uint8_t payload[] = {rssi};
                 transmitPayload(payload, sizeof (payload), NODE2);
 
-                displayTemp(rssi, flags.crc, raw);
+                displayTemp(rssi, flags.crc, &temp);
                 startReceive();
             }
         }
diff --git a/rfm69.c b/rfm69.c
index 5ad3515..637aece 100644
--- a/rfm69.c
+++ b/rfm69.c
@@ -183,6 +183,20 @@
     printString("Radio init done\r\n");
 }
 
+void setOutputPower(uint8_t rssi) {
+    uint8_t pa = 0x40; // -18 dBm with PA1
+    if (rssi >   0 && rssi <=  40) pa += 16;
+    if (rssi >  40 && rssi <=  60) pa += 21;
+    if (rssi >  60 && rssi <=  90) pa += 26;
+    if (rssi >  90) pa += 31;
+
+    regWrite(PA_LEVEL, pa);
+}
+
+uint8_t getOutputPower(void) {
+    return regRead(PA_LEVEL);
+}
+
 void timeoutRadio(void) {
     irqFlags1 |= (1 << 2);
 }
@@ -248,6 +262,8 @@
     setMode(MODE_STDBY);
 
     if (timeout) {
+        regWrite(PA_LEVEL, 0x5f);
+
         return 0;
     }
 
diff --git a/rfm69.h b/rfm69.h
index e6b2d96..da3353b 100644
--- a/rfm69.h
+++ b/rfm69.h
@@ -78,12 +78,43 @@
 #define CAST_ADDRESS    0x84
 
 /**
+ * Flags for "payload ready" event.
+ */
+typedef struct {
+    bool ready;
+    bool crc;
+} PayloadFlags;
+
+/**
+ * Temperature read from transmitter including
+ * additional information.
+ */
+typedef struct {
+    uint16_t raw;
+    uint8_t power;
+} Temperature;
+
+/**
  * Initializes the radio module with the given carrier frequency in kilohertz
  * and node address.
  */
 void initRadio(uint64_t freq, uint8_t node);
 
 /**
+ * Sets the output power based on the given receiver RSSI.
+ * 
+ * @param rssi
+ */
+void setOutputPower(uint8_t rssi);
+
+/**
+ * Returns the current output power setting.
+ *
+ * @return ouput power
+ */
+uint8_t getOutputPower(void);
+
+/**
  * Indicates a timeout.
  */
 void timeoutRadio(void);
diff --git a/types.h b/types.h
index c21419f..af5ebfd 100644
--- a/types.h
+++ b/types.h
@@ -38,14 +38,6 @@
 } Point;
 
 /**
- * Flags for "payload ready" event.
- */
-typedef struct {
-    bool ready;
-    bool crc;
-} PayloadFlags;
-
-/**
  * Pointer to a function that takes an array of bytes
  * and returns a boolean.
  */