diff --git a/README.md b/README.md
index 70087cc..1cf21c1 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@
 and an Atmega328p MCU.  
 
 This is work in progress. Simple Tx-Rx is working so far.  
+I'm impressed how well these radio modules work; the range achieved with 
+simple wire antennas as well as the reliable packet transmission.
 
 To do something really extraordinary, the temperature reading of an MCP9808
 sensor is periodically transmitted to the receiver.  
@@ -17,17 +19,35 @@
 ![IMG_20250212_190518](https://github.com/user-attachments/assets/dd87b7de-c97d-4ecb-ab24-f5a34b849914)
 
 The receiver currently just converts the raw temperature reading to °C and 
-displays it with the RSSI value on a nice IPS TFT display.
+displays it with the RSSI value and CRC result on a nice IPS TFT display.
 
 ## Range
 
 Setting `RegPaLevel` to `0x5f`, which gives +13 dBm with `PA1`, indoor range is very good 
-and in an actual "field" test, packet reception was still reliable with an RSSI of about -100 dBm 
-at about 1.6 km distance.
+and in an actual "field" test, packet reception was still reliable with an RSSI of about -90 dBm 
+at about 2.2 km distance - with simple wire antennas. What would be the range with +20 dBm and 
+decent antennas?  
 
-![IMG_20250303_1733461c](https://github.com/user-attachments/assets/2aaa5fcb-6c89-4a07-a375-faa7fd152bbd)
+![IMG_20250306_180139c](https://github.com/user-attachments/assets/27c66e7a-ec16-4e98-9f94-7713fe54c7d0)
 
-![FieldTest1c](https://github.com/user-attachments/assets/c1f98778-df27-42a5-9ef3-afd779d8b309)
+![FieldTest3](https://github.com/user-attachments/assets/f2289f8e-1f81-4b85-9146-07c2ce1bb563)
+
+## Susceptibility to Temperature Changes
+
+With the default Frequency Deviation of 5 kHz and Receiver Bandwidth of 10.4 kHz, packet transmission
+is very unreliable and fails completely for me, when the temperature of the transmitter is below 
+~10°C and above 40°C, while the receiver temperature is at 20°C. The receiver does not seem to be 
+prone to temperature changes.  
+Increasing Frequency Deviation to 40 kHz and Receiver Bandwidth to 80.3 kHz, temperature susceptibility 
+is eliminated; when testing with transmitter temperature from -20°C to 50°C, packet transmission is 
+perfectly reliable.
+
+Frequency Deviation = 40 kHz (transmitter)  
+`RegFdevMsb` = `0x02`  
+`RegFdevLsb` = `0x90`  
+
+Receiver Bandwidth = 80.3 kHz  
+`RegRxBw` = `0x52`  
 
 ## Fun Stuff
 
@@ -52,5 +72,4 @@
 The first 15 `0b10101010` bytes are the preamble, then there are 4 sync word bytes.
 After the 4 payload bytes, there are 2 CRC bytes as described in the datasheet of the RFM69HCW:
 
-![PackageFormat](https://github.com/user-attachments/assets/959babe5-9f1f-4f3d-9568-a4edbbca4bb2)
-
+![PackageFormat](https://github.com/user-attachments/assets/11687645-552c-46e5-a0bf-ef490b1bca48)