diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index c12f49196..69b628d7a 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -65,6 +65,9 @@
 #include "spiffs.h"
 #endif
 
+int DBGLEVEL = DBG_ERROR;
+uint8_t g_trigger = 0;
+bool g_hf_field_active = false;
 extern uint32_t _stack_start, _stack_end;
 struct common_area common_area __attribute__((section(".commonarea")));
 static int button_status = BUTTON_NO_CLICK;
@@ -88,6 +91,12 @@ int tearoff_hook(void) {
     }
 }
 
+void hf_field_off(void) {
+    FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+    LEDsoff();
+    g_hf_field_active = false;
+}
+
 void send_wtx(uint16_t wtx) {
     if (allow_send_wtx) {
         reply_ng(CMD_WTX, PM3_SUCCESS, (uint8_t *)&wtx, sizeof(wtx));
diff --git a/armsrc/appmain.h b/armsrc/appmain.h
index 092e88d0e..1a12f2858 100644
--- a/armsrc/appmain.h
+++ b/armsrc/appmain.h
@@ -13,9 +13,9 @@
 
 #include "common.h"
 
-extern int g_rsamples;   // = 0;
 extern uint8_t g_trigger;
-
+extern bool g_hf_field_active;
+void hf_field_off(void);
 int tearoff_hook(void);
 
 // ADC Vref = 3300mV, and an (10M+1M):1M voltage divider on the HF input can measure voltages up to 36300 mV
diff --git a/armsrc/hitagS.c b/armsrc/hitagS.c
index 7a49d65cd..022730075 100644
--- a/armsrc/hitagS.c
+++ b/armsrc/hitagS.c
@@ -103,8 +103,6 @@ static bool end = false;
 #define HITAG_T_TAG_CAPTURE_THREE_HALF 41
 #define HITAG_T_TAG_CAPTURE_FOUR_HALF  57
 
-#define DBGLEVEL 0
-
 /*
  * Implementation of the crc8 calculation from Hitag S
  * from http://www.proxmark.org/files/Documents/125%20kHz%20-%20Hitag/HitagS.V11.pdf
diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 0ca42c9ee..a70b9b953 100644
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -28,12 +28,9 @@
 
 #define MAX_ISO14A_TIMEOUT 524288
 static uint32_t iso14a_timeout;
-// if iso14443a not active - transmit/receive dont try to execute
-static bool hf_field_active = false;
 
 static uint8_t colpos = 0;
-int g_rsamples = 0;
-uint8_t g_trigger = 0;
+
 // the block number for the ISO14443-4 PCB
 static uint8_t iso14_pcb_blocknum = 0;
 
@@ -1814,7 +1811,7 @@ static void PrepareDelayedTransfer(uint16_t delay) {
 //-------------------------------------------------------------------------------------
 static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing) {
 
-    if (!hf_field_active) {
+    if (!g_hf_field_active) {
         Dbprintf("Warning: HF field is off, ignoring TransmitFor14443a command");
         return;
     }
@@ -2214,7 +2211,7 @@ bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_Start
 //-----------------------------------------------------------------------------
 bool GetIso14443aAnswerFromTag_Thinfilm(uint8_t *receivedResponse,  uint8_t *received_len) {
 
-    if (!hf_field_active) {
+    if (!g_hf_field_active) {
         Dbprintf("Warning: HF field is off, ignoring GetIso14443aAnswerFromTag_Thinfilm command");
         return false;
     }
@@ -2264,7 +2261,7 @@ bool GetIso14443aAnswerFromTag_Thinfilm(uint8_t *receivedResponse,  uint8_t *rec
 static int GetIso14443aAnswerFromTag(uint8_t *receivedResponse, uint8_t *receivedResponsePar, uint16_t offset) {
     uint32_t c = 0;
 
-    if (!hf_field_active)
+    if (!g_hf_field_active)
         return false;
 
     // Set FPGA mode to "reader listen mode", no modulation (listen
@@ -2758,13 +2755,7 @@ void iso14443a_setup(uint8_t fpga_minor_mode) {
     NextTransferTime = 2 * DELAY_ARM2AIR_AS_READER;
     iso14a_set_timeout(1060); // 106 * 10ms default
 
-    hf_field_active = true;
-}
-
-void hf_field_off(void) {
-    FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-    LEDsoff();
-    hf_field_active = false;
+    g_hf_field_active = true;
 }
 
 /* Peter Fillmore 2015
diff --git a/armsrc/iso14443a.h b/armsrc/iso14443a.h
index 200653764..49317628b 100644
--- a/armsrc/iso14443a.h
+++ b/armsrc/iso14443a.h
@@ -144,7 +144,6 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, u
 int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *p_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades, bool no_rats);
 int iso14443a_fast_select_card(uint8_t *uid_ptr, uint8_t num_cascades);
 void iso14a_set_trigger(bool enable);
-void hf_field_off(void);
 
 int EmSendCmd14443aRaw(uint8_t *resp, uint16_t respLen);
 int EmSend4bit(uint8_t resp);
diff --git a/armsrc/iso14443b.c b/armsrc/iso14443b.c
index c3701dbfe..9d29e4cda 100644
--- a/armsrc/iso14443b.c
+++ b/armsrc/iso14443b.c
@@ -1365,6 +1365,7 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len, uint32_t
     tosend_t *ts = get_tosend();
     CodeIso14443bAsReader(cmd, len);
     TransmitFor14443b_AsReader(start_time);
+    if (g_trigger) LED_A_ON();
     *eof_time = *start_time + (10 * ts->max) + 10 + 2 + 10;
     LogTrace(cmd, len, *start_time, *eof_time, NULL, true);
 }
diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 5d8989ef8..07cf7b098 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -20,8 +20,6 @@
 #include "protocols.h"
 #include "desfire_crypto.h"
 
-int DBGLEVEL = DBG_ERROR;
-
 // crypto1 helpers
 void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out) {
     if (len != 1) {