diff --git a/firmware/application/apps/ble_rx_app.cpp b/firmware/application/apps/ble_rx_app.cpp
index 10346a9d..da07acfe 100644
--- a/firmware/application/apps/ble_rx_app.cpp
+++ b/firmware/application/apps/ble_rx_app.cpp
@@ -657,16 +657,6 @@ bool BLERxView::saveFile(const std::filesystem::path& path) {
 }
 
 void BLERxView::on_data(BlePacketData* packet) {
-    if (auto_channel) {
-        int min = 37;
-        int max = 39;
-
-        int randomChannel = min + std::rand() % (max - min + 1);
-
-        field_frequency.set_value(get_freq_by_channel_number(randomChannel));
-        baseband::set_btlerx(randomChannel);
-    }
-
     std::string str_console = "";
 
     if (!logging) {
@@ -726,6 +716,23 @@ void BLERxView::on_filter_change(std::string value) {
     filter = value;
 }
 
+// called each 1/60th of second, so 6 = 100ms
+void BLERxView::on_timer() {
+    if (++timer_count == timer_period) {
+        timer_count = 0;
+
+        if (auto_channel) {
+            int min = 37;
+            int max = 39;
+
+            int randomChannel = min + std::rand() % (max - min + 1);
+
+            field_frequency.set_value(get_freq_by_channel_number(randomChannel));
+            baseband::set_btlerx(randomChannel);
+        }
+    }
+}
+
 void BLERxView::handle_entries_sort(uint8_t index) {
     switch (index) {
         case 0:
diff --git a/firmware/application/apps/ble_rx_app.hpp b/firmware/application/apps/ble_rx_app.hpp
index 40004382..08f00a38 100644
--- a/firmware/application/apps/ble_rx_app.hpp
+++ b/firmware/application/apps/ble_rx_app.hpp
@@ -195,6 +195,7 @@ class BLERxView : public View {
     bool saveFile(const std::filesystem::path& path);
     void on_data(BlePacketData* packetData);
     void on_filter_change(std::string value);
+    void on_timer();
     void handle_entries_sort(uint8_t index);
     void updateEntry(const BlePacketData* packet, BleRecentEntry& entry, ADV_PDU_TYPE pdu_type);
 
@@ -212,6 +213,9 @@ class BLERxView : public View {
     uint8_t channel_number = 37;
     bool auto_channel = false;
 
+    int16_t timer_count{0};
+    int16_t timer_period{6};  // 100ms
+
     std::string filterBuffer{};
     std::string filter{};
     std::string listFileBuffer{};
@@ -313,6 +317,12 @@ class BLERxView : public View {
             const auto message = static_cast<const BLEPacketMessage*>(p);
             this->on_data(message->packet);
         }};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->on_timer();
+        }};
 };
 
 } /* namespace ui */
diff --git a/firmware/application/apps/ble_tx_app.cpp b/firmware/application/apps/ble_tx_app.cpp
index 79b4e082..58781ae0 100644
--- a/firmware/application/apps/ble_tx_app.cpp
+++ b/firmware/application/apps/ble_tx_app.cpp
@@ -170,17 +170,6 @@ void BLETxView::start() {
     baseband::run_image(portapack::spi_flash::image_tag_btle_tx);
     transmitter_model.enable();
 
-    int randomChannel = channel_number;
-
-    if (auto_channel) {
-        int min = 37;
-        int max = 39;
-
-        randomChannel = min + std::rand() % (max - min + 1);
-
-        field_frequency.set_value(get_freq_by_channel_number(randomChannel));
-    }
-
     // Generate new random Mac Address.
     generateRandomMacAddress(randomMac);
 
@@ -201,7 +190,7 @@ void BLETxView::start() {
 
     // Setup next packet configuration.
     progressbar.set_max(packets[current_packet].packet_count);
-    baseband::set_btletx(randomChannel, random_mac ? randomMac : packets[current_packet].macAddress, packets[current_packet].advertisementData, pduType);
+    baseband::set_btletx(channel_number, random_mac ? randomMac : packets[current_packet].macAddress, packets[current_packet].advertisementData, pduType);
 }
 
 void BLETxView::stop() {
@@ -226,8 +215,8 @@ void BLETxView::reset() {
 
 // called each 1/60th of second, so 6 = 100ms
 void BLETxView::on_timer() {
-    if (++mscounter == timer_period) {
-        mscounter = 0;
+    if (++timer_count == timer_period) {
+        timer_count = 0;
 
         if (is_active()) {
             // Reached end of current packet repeats.
@@ -253,6 +242,19 @@ void BLETxView::on_timer() {
             }
         }
     }
+
+    if (++auto_channel_counter == auto_channel_period) {
+        auto_channel_counter = 0;
+
+        if (auto_channel) {
+            int min = 37;
+            int max = 39;
+
+            channel_number = min + std::rand() % (max - min + 1);
+
+            field_frequency.set_value(get_freq_by_channel_number(channel_number));
+        }
+    }
 }
 
 void BLETxView::on_tx_progress(const bool done) {
@@ -316,7 +318,7 @@ BLETxView::BLETxView(NavigationView& nav)
 
     options_speed.on_change = [this](size_t, int32_t i) {
         timer_period = i;
-        mscounter = 0;
+        timer_count = 0;
     };
 
     options_adv_type.on_change = [this](size_t, int32_t i) {
diff --git a/firmware/application/apps/ble_tx_app.hpp b/firmware/application/apps/ble_tx_app.hpp
index cf41c121..794fd474 100644
--- a/firmware/application/apps/ble_tx_app.hpp
+++ b/firmware/application/apps/ble_tx_app.hpp
@@ -143,8 +143,12 @@ class BLETxView : public View {
     char randomMac[13] = "010203040506";
 
     bool is_running = false;
-    uint64_t timer_count{0};
+
+    int16_t timer_count{0};
     int16_t timer_period{1};
+    int16_t auto_channel_counter = 0;
+    int16_t auto_channel_period{6};
+
     bool repeatLoop = false;
     uint32_t packet_counter{0};
     uint32_t num_packets{0};
@@ -157,7 +161,6 @@ class BLETxView : public View {
     static constexpr uint8_t max_packet_repeat_str{10};
     static constexpr uint32_t max_packet_repeat_count{UINT32_MAX};
     static constexpr uint32_t max_num_packets{32};
-    int16_t mscounter = 0;
 
     BLETxPacket packets[max_num_packets];