diff --git a/examples/companion_radio/main.cpp b/examples/companion_radio/main.cpp
index 1fc8982d..3e723f47 100644
--- a/examples/companion_radio/main.cpp
+++ b/examples/companion_radio/main.cpp
@@ -619,8 +619,8 @@ public:
       memcpy(&freq, &cmd_frame[i], 4); i += 4;
       uint32_t bw;
       memcpy(&bw, &cmd_frame[i], 4); i += 4;
-      uint8_t sf = out_frame[i++];
-      uint8_t cr = out_frame[i++];
+      uint8_t sf = cmd_frame[i++];
+      uint8_t cr = cmd_frame[i++];
 
       if (freq >= 300000 && freq <= 2500000 && sf >= 7 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7000 && bw <= 500000) {
         _prefs.sf = sf;
@@ -630,6 +630,7 @@ public:
         savePrefs();
         writeOKFrame();  // reboot now required!
       } else {
+        MESH_DEBUG_PRINTLN("Error: CMD_SET_RADIO_PARAMS: f=%d, bw=%d, sf=%d, cr=%d", freq, bw, (uint32_t)sf, (uint32_t)cr);
         writeErrFrame();
       }
     } else if (cmd_frame[0] == CMD_SET_RADIO_TX_POWER) {
diff --git a/src/helpers/nrf52/RAK4631Board.h b/src/helpers/nrf52/RAK4631Board.h
index bd7aca29..61188258 100644
--- a/src/helpers/nrf52/RAK4631Board.h
+++ b/src/helpers/nrf52/RAK4631Board.h
@@ -18,7 +18,7 @@
 
 // built-ins
 #define  PIN_VBAT_READ    5
-#define  ADC_MULTIPLIER   (3 * 1.73 * 1000)
+#define  ADC_MULTIPLIER   (3 * 1.73 * 1.187 * 1000)
 
 class RAK4631Board : public mesh::MainBoard {
 protected: