diff --git a/examples/companion_radio/MyMesh.cpp b/examples/companion_radio/MyMesh.cpp
index 0d41588c..0ffe7d46 100644
--- a/examples/companion_radio/MyMesh.cpp
+++ b/examples/companion_radio/MyMesh.cpp
@@ -26,6 +26,10 @@ static const uint32_t COMMAND_RADIO_APPLY_TIMEOUT_MS = 5000UL;
 #define RXPS_FIXED_PREAMBLE 16
 #endif
 
+#if RXPS_FIXED_ENABLED
+#error "RXPS must remain disabled for companion firmware"
+#endif
+
 #define CMD_APP_START                 1
 #define CMD_SEND_TXT_MSG              2
 #define CMD_SEND_CHANNEL_TXT_MSG      3
diff --git a/variants/heltec_tracker_v2/platformio.ini b/variants/heltec_tracker_v2/platformio.ini
index 7ec0b65b..6aa853b4 100644
--- a/variants/heltec_tracker_v2/platformio.ini
+++ b/variants/heltec_tracker_v2/platformio.ini
@@ -193,9 +193,6 @@ build_flags =
 extends = env:heltec_tracker_v2_companion_radio_ble_femon
 build_flags =
   ${env:heltec_tracker_v2_companion_radio_ble_femon.build_flags}
-  -D RXPS_FIXED_ENABLED=1
-  -D RXPS_FIXED_LEVEL=2
-  -D RXPS_FIXED_PREAMBLE=16
 
 [env:heltec_tracker_v2_companion_radio_ble_ps_femoff]
 extends = env:heltec_tracker_v2_companion_radio_ble_ps_femon
diff --git a/variants/heltec_v4/platformio.ini b/variants/heltec_v4/platformio.ini
index 70939508..2396af88 100644
--- a/variants/heltec_v4/platformio.ini
+++ b/variants/heltec_v4/platformio.ini
@@ -476,9 +476,6 @@ build_flags =
 extends = env:heltec_v4_companion_radio_ble_femon
 build_flags =
   ${env:heltec_v4_companion_radio_ble_femon.build_flags}
-  -D RXPS_FIXED_ENABLED=1
-  -D RXPS_FIXED_LEVEL=2
-  -D RXPS_FIXED_PREAMBLE=16
 
 [env:heltec_v4_3_companion_radio_ble_ps_femoff]
 extends = env:heltec_v4_companion_radio_ble_ps_femon
@@ -704,9 +701,6 @@ build_flags =
 extends = env:heltec_v4_tft_companion_radio_ble_femon
 build_flags =
   ${env:heltec_v4_tft_companion_radio_ble_femon.build_flags}
-  -D RXPS_FIXED_ENABLED=1
-  -D RXPS_FIXED_LEVEL=2
-  -D RXPS_FIXED_PREAMBLE=16
   -D ENV_PIN_SDA=4
   -D ENV_PIN_SCL=3