diff --git a/firmware/application/apps/acars_app.cpp b/firmware/application/apps/acars_app.cpp
index 108a673a..b22a9632 100644
--- a/firmware/application/apps/acars_app.cpp
+++ b/firmware/application/apps/acars_app.cpp
@@ -98,9 +98,10 @@ ACARSAppView::ACARSAppView(NavigationView& nav) {
 		logging = v;
 	};
 	
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<ACARSLogger>();
 	if (logger)
-		logger->append("acars.txt");
+		logger->append( LOG_ROOT_DIR "/ACARS.TXT" );
 }
 
 ACARSAppView::~ACARSAppView() {
diff --git a/firmware/application/apps/ais_app.cpp b/firmware/application/apps/ais_app.cpp
index d45efc0d..291794b4 100644
--- a/firmware/application/apps/ais_app.cpp
+++ b/firmware/application/apps/ais_app.cpp
@@ -397,9 +397,10 @@ AISAppView::AISAppView(NavigationView& nav) : nav_ { nav } {
 		this->on_show_list();
 	};
 
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<AISLogger>();
 	if( logger ) {
-		logger->append(u"ais.txt");
+		logger->append( LOG_ROOT_DIR "/AIS.TXT" );
 	}
 }
 
diff --git a/firmware/application/apps/ert_app.cpp b/firmware/application/apps/ert_app.cpp
index 447286ef..1260c321 100644
--- a/firmware/application/apps/ert_app.cpp
+++ b/firmware/application/apps/ert_app.cpp
@@ -130,9 +130,10 @@ ERTAppView::ERTAppView(NavigationView&) {
 		static_cast<int8_t>(receiver_model.vga()),
 	}); */
 
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<ERTLogger>();
 	if( logger ) {
-		logger->append(u"ert.txt");
+		logger->append( LOG_ROOT_DIR "/ERT.TXT" );
 	}
 }
 
diff --git a/firmware/application/apps/pocsag_app.cpp b/firmware/application/apps/pocsag_app.cpp
index 0c5580b8..91d599d1 100644
--- a/firmware/application/apps/pocsag_app.cpp
+++ b/firmware/application/apps/pocsag_app.cpp
@@ -129,9 +129,10 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 		ignore_address /= 10;
 	}
 
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<POCSAGLogger>();
 	if (logger)
-		logger->append("pocsag.txt");
+		logger->append( LOG_ROOT_DIR "/POCSAG.TXT" );
 
 	audio::output::start();
 	audio::output::unmute();
diff --git a/firmware/application/apps/tpms_app.cpp b/firmware/application/apps/tpms_app.cpp
index 5f3a0d09..2e200590 100644
--- a/firmware/application/apps/tpms_app.cpp
+++ b/firmware/application/apps/tpms_app.cpp
@@ -194,9 +194,10 @@ TPMSAppView::TPMSAppView(NavigationView&) {
 
 	options_temperature.set_selected_index(0, true);
 
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<TPMSLogger>();
 	if( logger ) {
-		logger->append(u"tpms.txt");
+		logger->append( LOG_ROOT_DIR "/TPMS.TXT" );
 	}
 }
 
diff --git a/firmware/application/apps/ui_adsb_rx.cpp b/firmware/application/apps/ui_adsb_rx.cpp
index ca899ffc..c924cda1 100644
--- a/firmware/application/apps/ui_adsb_rx.cpp
+++ b/firmware/application/apps/ui_adsb_rx.cpp
@@ -117,6 +117,8 @@ ADSBRxAircraftDetailsView::ADSBRxAircraftDetailsView(
 	
 	std::unique_ptr<ADSBLogger> logger { };
 
+	make_new_directory(LOG_ROOT_DIR);
+
 	icao_code = to_string_hex(entry_copy.ICAO_address, 6);
 	text_icao_address.set(to_string_hex(entry_copy.ICAO_address, 6));
 
@@ -351,7 +353,7 @@ void ADSBRxView::sort_entries_by_state()
 }
 
 void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
-	logger = std::make_unique<ADSBLogger>();
+   	logger = std::make_unique<ADSBLogger>();
 	rtc::RTC datetime;
 	std::string callsign;
 	std::string str_info;
@@ -422,6 +424,7 @@ void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
 			} else if(msg_type == AIRBORNE_VEL && msg_sub >= VEL_GND_SUBSONIC && msg_sub <= VEL_AIR_SUPERSONIC){
 				entry.set_frame_velo(frame);
 				if (logger) {
+					logger->append( LOG_ROOT_DIR "/ADSB.TXT" );
 					logentry += "Type:" + to_string_dec_uint(msg_sub) +
 								" Hdg:" + to_string_dec_uint(entry.velo.heading) +
 								" Spd: "+ to_string_dec_int(entry.velo.speed);
@@ -432,7 +435,7 @@ void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
 		} // frame.get_DF() == DF_ADSB
 
         if (logger) {
-                logger->append(u"adsb.txt");
+                logger->append( LOG_ROOT_DIR "/ADSB.TXT" );
                 // will log each frame in format:
                 // 20171103100227 8DADBEEFDEADBEEFDEADBEEFDEADBEEF ICAO:nnnnnn callsign Alt:nnnnnn Latnnn.nn Lonnnn.nn
 				logger->log_str(logentry);
diff --git a/firmware/application/apps/ui_afsk_rx.cpp b/firmware/application/apps/ui_afsk_rx.cpp
index e8daa261..2fcdefe0 100644
--- a/firmware/application/apps/ui_afsk_rx.cpp
+++ b/firmware/application/apps/ui_afsk_rx.cpp
@@ -107,9 +107,10 @@ AFSKRxView::AFSKRxView(NavigationView& nav) {
 		nav.push<ModemSetupView>();
 	};
 	
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<AFSKLogger>();
 	if (logger)
-		logger->append("AFSK_LOG.TXT");
+		logger->append( LOG_ROOT_DIR "/AFSK.TXT" );
 	
 	// Auto-configure modem for LCR RX (will be removed later)
 	baseband::set_afsk(persistent_memory::modem_baudrate(), 8, 0, false);
diff --git a/firmware/application/apps/ui_aprs_rx.cpp b/firmware/application/apps/ui_aprs_rx.cpp
index c1f16893..3b7ab519 100644
--- a/firmware/application/apps/ui_aprs_rx.cpp
+++ b/firmware/application/apps/ui_aprs_rx.cpp
@@ -141,9 +141,10 @@ APRSRxView::APRSRxView(NavigationView& nav, Rect parent_rect) : View(parent_rect
 	
 	options_region.set_selected_index(0, true);
 	
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<APRSLogger>();
 	if (logger)
-		logger->append("APRS_RX_LOG.TXT");
+		logger->append( LOG_ROOT_DIR "/APRS.TXT" );
 	
 	baseband::set_aprs(1200);
 	
diff --git a/firmware/application/apps/ui_sonde.cpp b/firmware/application/apps/ui_sonde.cpp
index 5ddf157e..45532251 100644
--- a/firmware/application/apps/ui_sonde.cpp
+++ b/firmware/application/apps/ui_sonde.cpp
@@ -133,12 +133,12 @@ SondeView::SondeView(NavigationView& nav) {
 			999); //set a dummy heading out of range to draw a cross...probably not ideal?
 	};
 
+	make_new_directory(LOG_ROOT_DIR);
 	logger = std::make_unique<SondeLogger>();
 	if (logger)
-		logger->append(u"sonde.txt");
+		logger->append( LOG_ROOT_DIR "/SONDE.TXT" );
 
 	// initialize audio:
-	
 	field_volume.set_value((receiver_model.headphone_volume() - audio::headphone::volume_range().max).decibel() + 99);
 	
 	field_volume.on_change = [this](int32_t v) {
diff --git a/firmware/application/log_file.hpp b/firmware/application/log_file.hpp
index 01861c1b..37c2a1ea 100644
--- a/firmware/application/log_file.hpp
+++ b/firmware/application/log_file.hpp
@@ -27,8 +27,11 @@
 #include "file.hpp"
 
 #include "lpc43xx_cpp.hpp"
+
 using namespace lpc43xx;
 
+#define LOG_ROOT_DIR "LOGS"
+
 class LogFile {
 public:
 	Optional<File::Error> append(const std::filesystem::path& filename) {