diff --git a/tools/esp8266/config.h b/tools/esp8266/config.h
index 9d2cf4b3..2efe5e4f 100644
--- a/tools/esp8266/config.h
+++ b/tools/esp8266/config.h
@@ -49,7 +49,7 @@
 #define DTU_RADIO_ID            ((uint64_t)0x1234567801ULL)
 
 // default NRF24 power, possible values (0 - 3)
-#define DEF_AMPLIFIERPOWER      2
+#define DEF_AMPLIFIERPOWER      1
 
 // number of packets hold in buffer
 #define PACKET_BUFFER_SIZE      30
diff --git a/tools/esp8266/html/visualization.html b/tools/esp8266/html/visualization.html
index 5da87ebc..57552e3b 100644
--- a/tools/esp8266/html/visualization.html
+++ b/tools/esp8266/html/visualization.html
@@ -62,7 +62,7 @@
                     main.appendChild(ch0);
 
 
-                    for(var i = 1; i < 5; i++) {
+                    for(var i = 1; i < (iv["channels"] + 1); i++) {
                         var ch = div(["ch"]);
                         ch.appendChild(span(("" == iv["ch_names"][i]) ? ("CHANNEL " + i) : iv["ch_names"][i], ["head"]));