diff --git a/firmware/application/protocols/encoders.hpp b/firmware/application/protocols/encoders.hpp
index 2d59443e..0d51a37a 100644
--- a/firmware/application/protocols/encoders.hpp
+++ b/firmware/application/protocols/encoders.hpp
@@ -29,6 +29,7 @@
 namespace encoders {
 	
 	#define ENC_TYPES_COUNT 14
+	#define OOK_SAMPLERATE 2280000U
 
 	struct encoder_def_t {
 		std::string name;						// Encoder chip ref/name
diff --git a/firmware/application/ui_about.cpp b/firmware/application/ui_about.cpp
index 43b55af7..e59962b9 100644
--- a/firmware/application/ui_about.cpp
+++ b/firmware/application/ui_about.cpp
@@ -38,111 +38,100 @@ using namespace portapack;
 
 namespace ui {
 
-void AboutView::update() {
-	size_t c;
-	int32_t n;
-	std::string text;
-	Coord y_val, x_pos = 0;
-	uint32_t flag;
-	
-	if (scroll & 1) {
-		if (!((scroll >> 1) & 15)) {
-			if (line_feed) {
-				line_feed = false;
-			} else {
-				// Find a free text widget
-				for (c = 0; c < 10; c++)
-					if (text_line[c].screen_pos().y() >= 200) break;
-				
-				if (c < 10) {
-					flag = credits[credits_index].flag & 0x3F;
-					line_feed = (credits[credits_index].flag & 0x40) ? true : false;
-					
-					if (flag == SECTION) {
-						if (!second) {
-							text = credits[credits_index].role;
-							if (credits[credits_index].name != "")
-								second = true;
-							else {
-								credits_index++;
-								line_feed = true;
-							}
-						} else {
-							text = credits[credits_index].name;
-							second = false;
-							line_feed = true;
-							credits_index++;
-						}
-						x_pos = (240 - (text.size() * 8)) / 2;
-					} else if (flag == TITLE) {
-						text = credits[credits_index].role;
-						x_pos = 120 - (text.size() * 8);
-						if (credits[credits_index].name != "")
-							text += "  " + credits[credits_index].name;
-						credits_index++;
-					} else if (flag == MEMBER) {
-						if (!second) {
-							text = credits[credits_index].role;
-							if (credits[credits_index].name != "")
-								second = true;
-							else
-								credits_index++;
-						} else {
-							text = credits[credits_index].name;
-							second = false;
-							credits_index++;
-						}
-						x_pos = 136;
-					}
-					
-					if (!(flag & 0x80)) {
-						text_line[c].set_parent_rect({{ x_pos, 200 - 16 }, { (Dim)text.size() * 8, 17 }});
-						text_line[c].set(text);
-						text_line[c].hidden(false);
-					}
-				}
-			}
-		}
+// This is pretty much WaterfallView but in the opposite direction
+CreditsWidget::CreditsWidget(
+	Rect parent_rect
+) : Widget { parent_rect }
+{
+}
 
-		// Scroll text lines
-		for (c = 0; c < 10; c++) {
-			y_val = text_line[c].screen_pos().y() - 16;
-			if (y_val < 32) {
-				text_line[c].set_parent_rect({{ text_line[c].screen_pos().x(), 200 }, { text_line[c].size() }});
-				text_line[c].hidden(true);
-			} else {
-				if (y_val < 200) {
-					text_line[c].set_parent_rect({{ text_line[c].screen_pos().x(), y_val - 1 }, { text_line[c].size() }});
-					n = (y_val - 32) >> 2;
-					if (n > 19)
-						n = (38 - n);
-					else
-						n -= 3;
-					if (n > 3) n = 3;
-					if (n < 0) n = 0;
-					text_line[c].set_style(&styles[n]);
-				}
-			}
+void CreditsWidget::paint(Painter&) {
+}
+
+void CreditsWidget::on_show() {
+	clear();
+
+	const auto screen_r = screen_rect();
+	display.scroll_set_area(screen_r.top(), screen_r.bottom());
+}
+
+void CreditsWidget::on_hide() {
+	display.scroll_disable();
+}
+
+void CreditsWidget::new_row(
+	const std::array<Color, 240>& pixel_row
+) {
+	const auto draw_y = display.scroll(-1);
+	
+	display.draw_pixels(
+		{ { 0, draw_y }, { 240, 1 } },
+		pixel_row
+	);
+}
+
+void CreditsWidget::clear() {
+	display.fill_rectangle(
+		screen_rect(),
+		Color::black()
+	);
+}
+
+void AboutView::update() {
+	size_t i = 0;
+	std::array<Color, 240> pixel_row;
+	
+	slow_down++;
+	if (slow_down & 1) return;
+	
+	if (!timer) {
+		if (loop) {
+			credits_index = 0;
+			loop = false;
 		}
+		
+		text = credits[credits_index].text;
+		timer = credits[credits_index].delay;
+		start_pos = credits[credits_index].start_pos;
+		
+		if (timer < 0) {
+			timer = 240;
+			loop = true;
+		} else {
+			timer += 16;
+		}
+		
+		render_line = 0;
+		credits_index++;
+	} else
+		timer--;
+	
+	if (render_line < 16) {
+		for (const auto c : text) {
+			const auto glyph = style().font.glyph(c);
+			
+			const size_t start = (glyph.size().width() / 8) * render_line; 
+			for(Dim c=0; c<glyph.size().width(); c++) {
+				const auto pixel = glyph.pixels()[start + (c >> 3)] & (1U << (c & 0x7));
+				pixel_row[start_pos + i + c] = pixel ? Color::white() : Color::black();
+			}
+			
+			const auto advance = glyph.advance();
+			i += advance.x();
+		}
+		render_line++;
 	}
-	scroll++;
+	
+	credits_display.new_row(pixel_row);
 }
 
 AboutView::AboutView(
 	NavigationView& nav
-)
-{
-	add_child(&button_ok);
-	
-	for (auto& text : text_line) {
-		text.set("");
-		text.set_parent_rect({
-			static_cast<Coord>(0),
-			static_cast<Coord>(200),
-			0, 0
-		});
-		add_child(&text);
-	}
+) {
+	add_children({
+		&credits_display,
+		&button_ok
+	});
 
 	button_ok.on_select = [&nav](Button&){
 		nav.pop();
diff --git a/firmware/application/ui_about.hpp b/firmware/application/ui_about.hpp
index eb0d2979..e9cd3d38 100644
--- a/firmware/application/ui_about.hpp
+++ b/firmware/application/ui_about.hpp
@@ -24,7 +24,6 @@
 #define __UI_ABOUT_H__
 
 #include "ui_widget.hpp"
-#include "ui_menu.hpp"
 #include "ui_navigation.hpp"
 #include "ui_font_fixed_8x16.hpp"
 
@@ -32,6 +31,21 @@
 
 namespace ui {
 
+class CreditsWidget : public Widget {
+public:
+	CreditsWidget(Rect parent_rect);
+	
+	void on_show() override;
+	void on_hide() override;
+
+	void paint(Painter&) override;
+	
+	void new_row(const std::array<Color, 240>& pixel_row);
+
+private:
+	void clear();
+};
+
 class AboutView : public View {
 public:
 	AboutView(NavigationView& nav);
@@ -43,33 +57,14 @@ public:
 private:
 	void update();
 
-	uint8_t credits_index = 0;
-	uint32_t scroll = 0;
-	bool second = false;
-	bool line_feed = false;
+	uint8_t credits_index { 0 };
+	uint8_t render_line { 0 };
+	Coord start_pos { 0 };
+	uint8_t slow_down { 0 };
+	int32_t timer { 0 };
+	bool loop { false };
 	
-	Style styles[4] = { style_black, style_dark_grey, style_light_grey, style_white };
-	
-	static constexpr Style style_white {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color(255, 255, 255)
-	};
-	static constexpr Style style_light_grey {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color(170, 170, 170)
-	};
-	static constexpr Style style_dark_grey {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color(85, 85, 85)
-	};
-	static constexpr Style style_black {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color(0, 0, 0)
-	};
+	std::string text { };
 
 	enum flags {
 		SECTION = 0,
@@ -81,30 +76,35 @@ private:
 	};
 		
 	typedef struct credits_t {
-		std::string role;
-		std::string name;
-		flags flag;
+		size_t start_pos;
+		std::string text;
+		int32_t delay;
 	} credits_t;
 	
-	const credits_t credits[16] = {	{"Portapack|HAVOC", 	"Git hash " GIT_REVISION,	SECTION},
-									{"Gurus",				"J. Boone", 				TITLE},
-									{"M. Ossmann",			"", 						MEMBER_LF},
-									{"HAVOC",				"Furrtek", 					TITLE_LF},
-									{"POCSAG rx",			"T. Sailer", 				TITLE},
-									{"E. Oenal",			"", 						MEMBER_LF},
-									{"RDS waveform",		"C. Jacquet", 				TITLE_LF},
-									{"Xy. infos",			"cLx", 						TITLE_LF},
-									{"World map",			"NASA", 					TITLE_LF},
-									{"Thanks",				"",							SECTION},
-									{"Rainer Matla",		"Keld Norman",				TITLE},
-									{"Giorgio C.",			"DC1RDB",					TITLE},
-									{"Sigmounte",			"Waax",						TITLE},
-									{"Windyoona",			"Channels",					TITLE},
-									{"F4GEV",				"",							TITLE_LF},
-									{"",					"MMXVII",					END}
-									};
-
-	std::array<Text, 10> text_line { };
+	const credits_t credits[19] = {	
+		{ 60,		"PortaPack|HAVOC",				0 },
+		{ 7 * 8,	"Git hash " GIT_REVISION,		16 },
+		{ 9 * 8,	"Gurus  J. Boone",				0 },
+		{ 16 * 8,	"M. Ossmann",					16 },
+		{ 9 * 8,	"HAVOC  Furrtek",				16 },
+		{ 5 * 8,	"POCSAG rx  T. Sailer",			0 },
+		{ 16 * 8,	"E. Oenal",						16 },
+		{ 2 * 8,	"RDS waveform  C. Jacquet", 	16 },
+		{ 5 * 8,	"Xy. infos  cLx", 				16 },
+		{ 0,		"OOK scan trick  Samy Kamkar",	16 },
+		{ 5 * 8,	"World map  NASA", 				24 },
+		{ 12 * 8,	"Thanks",						16 },
+		{ 1 * 8,	"Rainer Matla     Keld Norman",	0 },
+		{ 1 * 8,	" Giorgio C.         DC1RDB",	0 },
+		{ 1 * 8,	" Sigmounte           Waax",	0 },
+		{ 1 * 8,	" Windyoona         Channels",	0 },
+		{ 1 * 8,	"   F4GEV",						24 },
+		{ 12 * 8,	"MMXVII",						-1 }
+	};
+	
+	CreditsWidget credits_display {
+		{ 0, 16, 240, 240 }
+	};
 
 	Button button_ok {
 		{ 72, 272, 96, 24 },
diff --git a/firmware/application/ui_encoders.cpp b/firmware/application/ui_encoders.cpp
index 232bcad7..ef86bcf1 100644
--- a/firmware/application/ui_encoders.cpp
+++ b/firmware/application/ui_encoders.cpp
@@ -25,47 +25,131 @@
 #include "baseband_api.hpp"
 #include "string_format.hpp"
 
-#include "portapack_persistent_memory.hpp"
-
-#include <cstring>
-#include <stdio.h>
-
 using namespace portapack;
 
 namespace ui {
 
-void EncodersView::focus() {
+EncodersConfigView::EncodersConfigView(
+	NavigationView& nav, Rect parent_rect
+) {
+	using name_t = std::string;
+	using value_t = int32_t;
+	using option_t = std::pair<name_t, value_t>;
+	std::vector<option_t> enc_options;
+	size_t i;
+	
+	set_parent_rect(parent_rect);
+	hidden(true);
+	
+	// Default encoder def
+	encoder_def = &encoder_defs[0];
+	
+	add_children({
+		&labels,
+		&options_enctype,
+		&numberfield_clk,
+		&numberfield_bitduration,
+		&numberfield_wordduration,
+		&symfield_word,
+		&text_format,
+		&waveform
+	});
+
+	// Load encoder types in option field
+	for (i = 0; i < ENC_TYPES_COUNT; i++)
+		enc_options.emplace_back(std::make_pair(encoder_defs[i].name, i));
+	
+	options_enctype.on_change = [this](size_t index, int32_t) {
+		on_type_change(index);
+	};
+	
+	options_enctype.set_options(enc_options);
+	options_enctype.set_selected_index(0);
+	
+	symfield_word.on_change = [this]() {
+		generate_frame();
+	};
+	
+	// Selecting input clock changes symbol and word duration
+	numberfield_clk.on_change = [this](int32_t value) {
+		// value is in kHz, new_value is in us
+		int32_t new_value = 1000000 / ((value * 1000) / encoder_def->clk_per_symbol);
+		if (new_value != numberfield_bitduration.value()) {
+			numberfield_bitduration.set_value(new_value, false);
+			numberfield_wordduration.set_value(new_value * encoder_def->word_length, false);
+		}
+	};
+	
+	// Selecting symbol duration changes input clock and word duration
+	numberfield_bitduration.on_change = [this](int32_t value) {
+		int32_t new_value = 1000000 / (((float)value * 1000) / encoder_def->clk_per_symbol);
+		if (new_value != numberfield_clk.value()) {
+			numberfield_clk.set_value(new_value, false);
+			numberfield_wordduration.set_value(value * encoder_def->word_length, false);
+		}
+	};
+	
+	// Selecting word duration changes input clock and symbol duration
+	numberfield_wordduration.on_change = [this](int32_t value) {
+		int32_t new_value = value / encoder_def->word_length;
+		if (new_value != numberfield_bitduration.value()) {
+			numberfield_bitduration.set_value(new_value, false);
+			numberfield_clk.set_value(1000000 / (((float)new_value * 1000) / encoder_def->clk_per_symbol), false);
+		}
+	};
+}
+
+void EncodersConfigView::focus() {
 	options_enctype.focus();
 }
 
-EncodersView::~EncodersView() {
-	transmitter_model.disable();
-	baseband::shutdown();
-}
+void EncodersConfigView::on_type_change(size_t index) {
+	std::string word_format, format_string = "";
+	size_t word_length;
+	char symbol_type;
+	//size_t address_length;
+	
+	//enc_type = index;
 
-void EncodersView::generate_frame() {
-	size_t i;
+	encoder_def = &encoder_defs[index];
+
+	numberfield_clk.set_value(encoder_def->default_speed / 1000);
 	
-	debug_text.clear();
-	
-	i = 0;
-	for (auto c : encoder_def->word_format) {
-		if (c == 'S')
-			debug_text += encoder_def->sync;
-		else
-			debug_text += encoder_def->bit_format[symfield_word.get_sym(i++)];
+	// SymField setup
+	word_length = encoder_def->word_length;
+	symfield_word.set_length(word_length);
+	size_t n = 0, i = 0;
+	while (n < word_length) {
+		symbol_type = encoder_def->word_format.at(i++);
+		if (symbol_type == 'A') {
+			symfield_word.set_symbol_list(n++, encoder_def->address_symbols);
+			format_string += 'A';
+		} else if (symbol_type == 'D') {
+			symfield_word.set_symbol_list(n++, encoder_def->data_symbols);
+			format_string += 'D';
+		}
 	}
 	
-	draw_waveform();
+	// Ugly :( Pad to erase
+	format_string.append(24 - format_string.size(), ' ');
+	
+	text_format.set(format_string);
+
+	generate_frame();
 }
 
-void EncodersView::draw_waveform() {
-	uint32_t n, length;
+void EncodersConfigView::on_show() {
+	// TODO: Remove ?
+	//options_enctype.set_selected_index(enc_type);
+	//on_type_change(enc_type);
+}
 
-	length = debug_text.length();
+void EncodersConfigView::draw_waveform() {
+	size_t length = frame_symbols.length();
+	size_t n;
 	
 	for (n = 0; n < length; n++) {
-		if (debug_text[n] == '0')
+		if (frame_symbols[n] == '0')
 			waveform_buffer[n] = 0;
 		else
 			waveform_buffer[n] = 1;
@@ -75,17 +159,82 @@ void EncodersView::draw_waveform() {
 	waveform.set_dirty();
 }
 
+void EncodersConfigView::generate_frame() {
+	size_t i = 0;
+	
+	frame_symbols.clear();
+	
+	for (auto c : encoder_def->word_format) {
+		if (c == 'S')
+			frame_symbols += encoder_def->sync;
+		else
+			frame_symbols += encoder_def->bit_format[symfield_word.get_sym(i++)];
+	}
+	
+	draw_waveform();
+}
+
+uint8_t EncodersConfigView::repeat_min() {
+	return encoder_def->repeat_min;
+}
+
+uint32_t EncodersConfigView::samples_per_bit() {
+	return OOK_SAMPLERATE / ((numberfield_clk.value() * 1000) / encoder_def->clk_per_fragment);
+}
+
+uint32_t EncodersConfigView::pause_symbols() {
+	return encoder_def->pause_symbols;
+}
+
+void EncodersScanView::focus() {
+	field_debug.focus();
+}
+
+EncodersScanView::EncodersScanView(
+	NavigationView& nav, Rect parent_rect
+) {
+	set_parent_rect(parent_rect);
+	hidden(true);
+	
+	add_children({
+		&labels,
+		&field_debug,
+		&text_debug
+	});
+	
+	// DEBUG
+	field_debug.on_change = [this](int32_t value) {
+		uint32_t l;
+		de_bruijn debruijn_seq;
+		debruijn_seq.init(value);
+		l = 1;
+		l <<= value;
+		l--;
+		if (l > 25)
+			l = 25;
+		text_debug.set(to_string_bin(debruijn_seq.compute(l), 25));
+	};
+}
+
+void EncodersView::focus() {
+	tab_view.focus();
+}
+
+EncodersView::~EncodersView() {
+	transmitter_model.disable();
+	baseband::shutdown();
+}
+
 void EncodersView::update_progress() {
-	char str[16];
+	std::string str_buffer;
 	
 	// text_status.set("            ");
 	
 	if (tx_mode == SINGLE) {
-		strcpy(str, to_string_dec_uint(repeat_index).c_str());
-		strcat(str, "/");
-		strcat(str, to_string_dec_uint(encoder_def->repeat_min).c_str());
-		text_status.set(str);
+		str_buffer = to_string_dec_uint(repeat_index) + "/" + to_string_dec_uint(repeat_min);
+		text_status.set(str_buffer);
 		progress.set_value(repeat_index);
+		
 	/*} else if (tx_mode == SCAN) {
 		strcpy(str, to_string_dec_uint(repeat_index).c_str());
 		strcat(str, "/");
@@ -107,7 +256,8 @@ void EncodersView::on_txdone(int n, const bool txdone) {
 	
 	if (!txdone) {
 		// Repeating...
-		repeat_index = n + 1;
+		//repeat_index = n + 1;
+		
 		/*if (tx_mode == SCAN) {
 			scan_progress++;
 			update_progress();
@@ -147,14 +297,12 @@ void EncodersView::on_txdone(int n, const bool txdone) {
 	}
 }
 
-void EncodersView::on_tuning_frequency_changed(rf::Frequency f) {
-	transmitter_model.set_tuning_frequency(f);
-}
-
 void EncodersView::start_tx(const bool scan) {
-	char ook_bitstream[256];
-	uint32_t ook_bitstream_length;
 	(void)scan;
+	uint8_t* ook_bitstream = shared_memory.bb_data.data;
+	uint32_t ook_bitstream_length;
+	
+	repeat_min = view_config.repeat_min();
 	
 	/*if (scan) {
 		if (tx_mode != SCAN) {
@@ -170,17 +318,17 @@ void EncodersView::start_tx(const bool scan) {
 	} else {*/
 		tx_mode = SINGLE;
 		repeat_index = 1;
-		progress.set_max(encoder_def->repeat_min);
+		progress.set_max(repeat_min);
 		update_progress();
 	//}
 	
-	generate_frame();
+	view_config.generate_frame();
 	
 	// Clear bitstream
 	memset(ook_bitstream, 0, 256);
 	
 	size_t n = 0;
-	for (auto c : debug_text) {
+	for (auto c : view_config.frame_symbols) {
 		if (c != '0')
 			ook_bitstream[n >> 3] |= (1 << (7 - (n & 7)));
 		n++;
@@ -188,158 +336,41 @@ void EncodersView::start_tx(const bool scan) {
 	
 	ook_bitstream_length = n;
 
-	transmitter_model.set_sampling_rate(2280000U);
+	transmitter_model.set_sampling_rate(OOK_SAMPLERATE);
 	transmitter_model.set_rf_amp(true);
 	transmitter_model.set_baseband_bandwidth(1750000);
 	transmitter_model.enable();
 	
-	memcpy(shared_memory.bb_data.data, ook_bitstream, 256);
-	
 	baseband::set_ook_data(
 		ook_bitstream_length,
 		// 2280000/2 = 1140000Hz = 0,877192982us
 		// numberfield_clk.value() / encoder_def->clk_per_fragment
 		// 455000 / 12 = 37917Hz = 26,37339452us
-		228000 / ((numberfield_clk.value() * 1000) / encoder_def->clk_per_fragment),
-		encoder_def->repeat_min,
-		encoder_def->pause_symbols
+		view_config.samples_per_bit(),
+		repeat_min,
+		view_config.pause_symbols()
 	);
 }
 
-void EncodersView::on_type_change(size_t index) {
-	std::string word_format, format_string = "";
-	size_t word_length;
-	char symbol_type;
-	//size_t address_length;
-	
-	enc_type = index;
-
-	encoder_def = &encoder_defs[enc_type];
-
-	numberfield_clk.set_value(encoder_def->default_speed / 1000);
-	
-	// SymField setup
-	word_length = encoder_def->word_length;
-	symfield_word.set_length(word_length);
-	size_t n = 0, i = 0;
-	while (n < word_length) {
-		symbol_type = encoder_def->word_format.at(i++);
-		if (symbol_type == 'A') {
-			symfield_word.set_symbol_list(n++, encoder_def->address_symbols);
-			format_string += 'A';
-		} else if (symbol_type == 'D') {
-			symfield_word.set_symbol_list(n++, encoder_def->data_symbols);
-			format_string += 'D';
-		}
-	}
-	
-	// Ugly :( Pad to erase
-	while (format_string.length() < 24)
-		format_string += ' ';
-	
-	text_format.set(format_string);
-
-	generate_frame();
-}
-
-void EncodersView::on_show() {
-	// TODO: Remove ?
-	options_enctype.set_selected_index(enc_type);
-	on_type_change(enc_type);
-}
-
-EncodersView::EncodersView(NavigationView& nav) {
-	using name_t = std::string;
-	using value_t = int32_t;
-	using option_t = std::pair<name_t, value_t>;
-	using options_t = std::vector<option_t>;
-	options_t enc_options;
-	size_t i;
-	
+EncodersView::EncodersView(
+	NavigationView& nav
+) : nav_ { nav }
+{
 	baseband::run_image(portapack::spi_flash::image_tag_ook);
-	
-	// Default encoder def
-	encoder_def = &encoder_defs[0];
 
 	add_children({
-		&labels,
-		&options_enctype,
-		&numberfield_clk,
-		&numberfield_bitduration,
-		&numberfield_wordduration,
-		//&field_debug,
-		&symfield_word,
-		&text_format,
-		//&text_format_a,	// DEBUG
-		//&text_format_d,	// DEBUG
-		&waveform,
+		&tab_view,
+		&view_config,
+		&view_scan,
 		&text_status,
 		&progress,
 		&tx_view
 	});
 	
-	// Load encoder types
-	for (i = 0; i < ENC_TYPES_COUNT; i++)
-		enc_options.emplace_back(std::make_pair(encoder_defs[i].name, i));
-	
-	options_enctype.on_change = [this](size_t index, int32_t value) {
-		(void)value;
-		this->on_type_change(index);
-	};
-	
-	options_enctype.set_options(enc_options);
-	options_enctype.set_selected_index(0);
-	
-	symfield_word.on_change = [this]() {
-		this->generate_frame();
-	};
-	
-	// DEBUG
-	/*field_debug.on_change = [this](int32_t value) {
-		uint32_t l;
-		de_bruijn debruijn_seq;
-		debruijn_seq.init(value);
-		l = 1;
-		l <<= value;
-		l--;
-		if (l > 25)
-			l = 25;
-		text_format.set(to_string_bin(debruijn_seq.compute(l), 25));
-	};*/
-	
-	// Selecting input clock changes symbol and word duration
-	numberfield_clk.on_change = [this](int32_t value) {
-		//int32_t new_value = 1000000 / (((float)value * 1000) / encoder_def->clk_per_symbol);
-		// value is in kHz, new_value is in us
-		int32_t new_value = 1000000 / ((value * 1000) / encoder_def->clk_per_symbol);
-		if (new_value != numberfield_bitduration.value()) {
-			numberfield_bitduration.set_value(new_value, false);
-			numberfield_wordduration.set_value(new_value * encoder_def->word_length, false);
-		}
-	};
-	
-	// Selecting symbol duration changes input clock and word duration
-	numberfield_bitduration.on_change = [this](int32_t value) {
-		int32_t new_value = 1000000 / (((float)value * 1000) / encoder_def->clk_per_symbol);
-		if (new_value != numberfield_clk.value()) {
-			numberfield_clk.set_value(new_value, false);
-			numberfield_wordduration.set_value(value * encoder_def->word_length, false);
-		}
-	};
-	
-	// Selecting word duration changes input clock and symbol duration
-	numberfield_wordduration.on_change = [this](int32_t value) {
-		int32_t new_value = value / encoder_def->word_length;
-		if (new_value != numberfield_bitduration.value()) {
-			numberfield_bitduration.set_value(new_value, false);
-			numberfield_clk.set_value(1000000 / (((float)new_value * 1000) / encoder_def->clk_per_symbol), false);
-		}
-	};
-	
 	tx_view.on_edit_frequency = [this, &nav]() {
-		auto new_view = nav.push<FrequencyKeypadView>(receiver_model.tuning_frequency());
+		auto new_view = nav.push<FrequencyKeypadView>(transmitter_model.tuning_frequency());
 		new_view->on_changed = [this](rf::Frequency f) {
-			receiver_model.set_tuning_frequency(f);
+			transmitter_model.set_tuning_frequency(f);
 		};
 	};
 	
diff --git a/firmware/application/ui_encoders.hpp b/firmware/application/ui_encoders.hpp
index f50a3877..1ba48c36 100644
--- a/firmware/application/ui_encoders.hpp
+++ b/firmware/application/ui_encoders.hpp
@@ -21,37 +21,151 @@
  */
 
 #include "ui.hpp"
-#include "ui_widget.hpp"
-#include "ui_navigation.hpp"
-#include "ui_font_fixed_8x16.hpp"
-#include "ui_receiver.hpp"
+#include "ui_tabview.hpp"
 #include "ui_transmitter.hpp"
+#include "transmitter_model.hpp"
 #include "encoders.hpp"
 #include "de_bruijn.hpp"
-#include "message.hpp"
-#include "transmitter_model.hpp"
 
 using namespace encoders;
 
 namespace ui {
 
+class EncodersConfigView : public View {
+public:
+	EncodersConfigView(NavigationView& nav, Rect parent_rect);
+	
+	EncodersConfigView(const EncodersConfigView&) = delete;
+	EncodersConfigView(EncodersConfigView&&) = delete;
+	EncodersConfigView& operator=(const EncodersConfigView&) = delete;
+	EncodersConfigView& operator=(EncodersConfigView&&) = delete;
+	
+	void focus() override;
+	void on_show() override;
+	
+	uint8_t repeat_min();
+	uint32_t samples_per_bit();
+	uint32_t pause_symbols();
+	void generate_frame();
+	
+	std::string frame_symbols = "0";
+
+private:
+	//bool abort_scan = false;
+	//uint8_t scan_count;
+	//double scan_progress;
+	//unsigned int scan_index;
+	int8_t waveform_buffer[512];
+	const encoder_def_t * encoder_def { };
+	//uint8_t enc_type = 0;
+
+	void draw_waveform();
+	void on_bitfield();
+	void on_type_change(size_t index);
+	
+	Labels labels {
+		{ { 1 * 8, 0 }, "Type:", Color::light_grey() },
+		{ { 16 * 8, 0 }, "Clk:", Color::light_grey() },
+		{ { 24 * 8, 0 }, "kHz", Color::light_grey() },
+		{ { 16 * 8, 2 * 8 }, "Bit:", Color::light_grey() },
+		{ { 25 * 8, 2 * 8 }, "us", Color::light_grey() },
+		{ { 15 * 8, 4 * 8 }, "Word:", Color::light_grey() },
+		{ { 26 * 8, 4 * 8 }, "us", Color::light_grey() },
+		{ { 2 * 8, 6 * 8 }, "Word:", Color::light_grey() },
+		{ { 1 * 8, 13 * 8 }, "Waveform:", Color::light_grey() }
+	};
+
+	OptionsField options_enctype {		// Options are loaded at runtime
+		{ 6 * 8, 0 },
+		7,
+		{
+		}
+	};
+
+	NumberField numberfield_clk {
+		{ 21 * 8, 0 },
+		3,
+		{ 1, 500 },
+		1,
+		' '
+	};
+
+	NumberField numberfield_bitduration {
+		{ 21 * 8, 2 * 8 },
+		4,
+		{ 50, 9999 },
+		1,
+		' '
+	};
+
+	NumberField numberfield_wordduration {
+		{ 21 * 8, 4 * 8 },
+		5,
+		{ 300, 99999 },
+		100,
+		' '
+	};
+	
+	SymField symfield_word {
+		{ 2 * 8, 8 * 8 },
+		20,
+		SymField::SYMFIELD_DEF
+	};
+	
+	Text text_format {
+		{ 2 * 8, 10 * 8, 24 * 8, 16 },
+		""
+	};
+	
+	Waveform waveform {
+		{ 0, 16 * 8, 240, 32 },
+		waveform_buffer,
+		0,
+		0,
+		true,
+		Color::yellow()
+	};
+};
+
+
+class EncodersScanView : public View {
+public:
+	EncodersScanView(NavigationView& nav, Rect parent_rect);
+	
+	void focus() override;
+
+private:
+	Labels labels {
+		{ { 1 * 8, 1 * 8 }, "Test", Color::light_grey() }
+	};
+	
+	// DEBUG
+	NumberField field_debug {
+		{ 1 * 8, 6 * 8 },
+		2,
+		{ 3, 16 },
+		1,
+		' '
+	};
+	
+	// DEBUG
+	Text text_debug {
+		{ 1 * 8, 8 * 8, 24 * 8, 16 },
+		""
+	};
+};
+
 class EncodersView : public View {
 public:
 	EncodersView(NavigationView& nav);
 	~EncodersView();
 	
-	EncodersView(const EncodersView&) = delete;
-	EncodersView(EncodersView&&) = delete;
-	EncodersView& operator=(const EncodersView&) = delete;
-	EncodersView& operator=(EncodersView&&) = delete;
-	
 	void focus() override;
-	void on_show() override;
 	
-	std::string title() const override { return "Encoders TX"; };
+	std::string title() const override { return "OOK transmit"; };
 
 private:
-	void on_tuning_frequency_changed(rf::Frequency f);
+	NavigationView& nav_;
 
 	enum tx_modes {
 		IDLE = 0,
@@ -59,36 +173,14 @@ private:
 		SCAN
 	};
 	
-	uint8_t enc_type = 0;
-	const encoder_def_t * encoder_def { };
 	tx_modes tx_mode = IDLE;
-	//bool abort_scan = false;
-	//uint8_t scan_count;
-	//double scan_progress;
-	//unsigned int scan_index;
-	std::string debug_text = "0";
 	uint8_t repeat_index { 0 };
-	int8_t waveform_buffer[512];
+	uint8_t repeat_min { 0 };
 	
-	void draw_waveform();
-	void on_bitfield();
-	void on_type_change(size_t index);
-	void generate_frame();
 	void update_progress();
 	void start_tx(const bool scan);
 	void on_txdone(int n, const bool txdone);
 	
-	const Style style_val {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color::green(),
-	};
-	const Style style_cancel {
-		.font = font::fixed_8x16,
-		.background = Color::black(),
-		.foreground = Color::red(),
-	};
-	
 	const Style style_address {
 		.font = font::fixed_8x16,
 		.background = Color::black(),
@@ -100,85 +192,21 @@ private:
 		.foreground = Color::blue(),
 	};
 	
-	Labels labels {
-		{ { 1 * 8, 4 * 8 }, "Type:", Color::light_grey() },
-		{ { 16 * 8, 4 * 8 }, "Clk:", Color::light_grey() },
-		{ { 24 * 8, 4 * 8 }, "kHz", Color::light_grey() },
-		{ { 16 * 8, 6 * 8 }, "Bit:", Color::light_grey() },
-		{ { 25 * 8, 6 * 8 }, "us", Color::light_grey() },
-		{ { 15 * 8, 8 * 8 }, "Word:", Color::light_grey() },
-		{ { 26 * 8, 8 * 8 }, "us", Color::light_grey() },
-		{ { 2 * 8, 10 * 8 }, "Word:", Color::light_grey() },
-		{ { 1 * 8, 17 * 8 }, "Waveform:", Color::light_grey() }
+	Rect view_rect = { 0, 5 * 8, 240, 168 };
+	
+	EncodersConfigView view_config { nav_, view_rect };
+	EncodersScanView view_scan { nav_, view_rect };
+	
+	TabView tab_view {
+		{ "Config", Color::cyan(), &view_config },
+		{ "Scan", Color::green(), &view_scan },
 	};
 
-	OptionsField options_enctype {		// Options are loaded at runtime
-		{ 6 * 8, 32 },
-		7,
-		{
-		}
-	};
-
-	NumberField numberfield_clk {
-		{ 21 * 8, 4 * 8 },
-		3,
-		{ 1, 500 },
-		1,
-		' '
-	};
-
-	NumberField numberfield_bitduration {
-		{ 21 * 8, 6 * 8 },
-		4,
-		{ 50, 9999 },
-		1,
-		' '
-	};
-
-	NumberField numberfield_wordduration {
-		{ 21 * 8, 8 * 8 },
-		5,
-		{ 300, 99999 },
-		100,
-		' '
-	};
-	
-	// DEBUG
-	/*NumberField field_debug {
-		{ 21 * 8, 10 * 8 },
-		2,
-		{ 3, 16 },
-		1,
-		' '
-	};*/
-	
-	SymField symfield_word {
-		{ 2 * 8, 12 * 8 },
-		20,
-		SymField::SYMFIELD_DEF
-	};
-	Text text_format {
-		{ 2 * 8, 14 * 8, 24 * 8, 16 },
-		""
-	};
-	
-	//Text text_format_a;	// DEBUG
-	//Text text_format_d;	// DEBUG
-	
-	Waveform waveform {
-		{ 0, 160, 240, 32 },
-		waveform_buffer,
-		0,
-		0,
-		true,
-		Color::yellow()
-	};
-	
 	Text text_status {
 		{ 2 * 8, 13 * 16, 128, 16 },
 		"Ready"
 	};
-
+	
 	ProgressBar progress {
 		{ 2 * 8, 13 * 16 + 20, 208, 16 }
 	};
diff --git a/firmware/application/ui_geomap.cpp b/firmware/application/ui_geomap.cpp
index 9b68a5ce..4387cb73 100644
--- a/firmware/application/ui_geomap.cpp
+++ b/firmware/application/ui_geomap.cpp
@@ -219,6 +219,8 @@ void GeoMapView::focus() {
 void GeoMapView::update_position(float lat, float lon) {
 	lat_ = lat;
 	lon_ = lon;
+	geopos.set_lat(lat_);
+	geopos.set_lon(lon_);
 	geomap.move(lon_, lat_);
 	geomap.set_dirty();
 }
diff --git a/firmware/baseband/proc_ook.cpp b/firmware/baseband/proc_ook.cpp
index 16794583..da27720f 100644
--- a/firmware/baseband/proc_ook.cpp
+++ b/firmware/baseband/proc_ook.cpp
@@ -98,7 +98,7 @@ void OOKProcessor::on_message(const Message* const p) {
 	const auto message = *reinterpret_cast<const OOKConfigureMessage*>(p);
 	
 	if (message.id == Message::ID::OOKConfigure) {
-		samples_per_bit = message.samples_per_bit;
+		samples_per_bit = message.samples_per_bit / 10;
 		repeat = message.repeat - 1;
 		length = message.stream_length - 1;
 		pause = message.pause_symbols + 1;