diff --git a/firmware/application/apps/ert_app.cpp b/firmware/application/apps/ert_app.cpp
index e476c966..7745d923 100644
--- a/firmware/application/apps/ert_app.cpp
+++ b/firmware/application/apps/ert_app.cpp
@@ -65,9 +65,13 @@ std::string commodity_type(CommodityType value) {
 
 } /* namespace ert */
 
-void ERTLogger::on_packet(const ert::Packet& packet) {
+void ERTLogger::on_packet(const ert::Packet& packet, const uint32_t target_frequency) {
     const auto formatted = packet.symbols_formatted();
-    std::string entry = ert::format::type(packet.type()) + " " + formatted.data + "/" + formatted.errors;
+
+    // TODO: function doesn't take uint64_t, so when >= 1<<32, weirdness will ensue!
+    const auto target_frequency_str = to_string_dec_uint(target_frequency, 10);
+
+    std::string entry = target_frequency_str + " " + ert::format::type(packet.type()) + " " + formatted.data + "/" + formatted.errors;
     log_file.write_entry(packet.received_at(), entry);
 }
 
@@ -99,10 +103,12 @@ void RecentEntriesTable<ERTRecentEntries>::draw(
     painter.draw_string(target_rect.location(), style, line);
 }
 
-ERTAppView::ERTAppView(NavigationView&) {
+ERTAppView::ERTAppView(NavigationView& nav)
+    : nav_{nav} {
     baseband::run_image(portapack::spi_flash::image_tag_ert);
 
     add_children({
+        &field_frequency,
         &field_rf_amp,
         &field_lna,
         &field_vga,
@@ -110,6 +116,8 @@ ERTAppView::ERTAppView(NavigationView&) {
         &recent_entries_view,
     });
 
+    field_frequency.set_step(1000000);
+
     receiver_model.enable();
 
     logger = std::make_unique<ERTLogger>();
@@ -134,7 +142,7 @@ void ERTAppView::set_parent_rect(const Rect new_parent_rect) {
 
 void ERTAppView::on_packet(const ert::Packet& packet) {
     if (logger) {
-        logger->on_packet(packet);
+        logger->on_packet(packet, receiver_model.target_frequency());
     }
 
     if (packet.crc_ok()) {
diff --git a/firmware/application/apps/ert_app.hpp b/firmware/application/apps/ert_app.hpp
index ab22bf4f..cc306008 100644
--- a/firmware/application/apps/ert_app.hpp
+++ b/firmware/application/apps/ert_app.hpp
@@ -24,6 +24,7 @@
 
 #include "ui_navigation.hpp"
 #include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
 #include "ui_rssi.hpp"
 #include "ui_channel.hpp"
 
@@ -95,7 +96,7 @@ class ERTLogger {
         return log_file.append(filename);
     }
 
-    void on_packet(const ert::Packet& packet);
+    void on_packet(const ert::Packet& packet, const uint32_t target_frequency);
 
    private:
     LogFile log_file{};
@@ -126,6 +127,7 @@ class ERTAppView : public View {
     ERTRecentEntries recent{};
     std::unique_ptr<ERTLogger> logger{};
 
+    NavigationView& nav_;
     RxRadioState radio_state_{
         911600000 /* frequency */,
         2500000 /* bandwidth */,
@@ -143,6 +145,10 @@ class ERTAppView : public View {
 
     static constexpr auto header_height = 1 * 16;
 
+    RxFrequencyField field_frequency{
+        {5 * 8, 0 * 16},
+        nav_};
+
     RFAmpField field_rf_amp{
         {13 * 8, 0 * 16}};