diff --git a/README.md b/README.md
index 58b5eaf..4281724 100644
--- a/README.md
+++ b/README.md
@@ -227,7 +227,7 @@ To ignore annoying frequency that you are not interested use `ignored_frequencie
 }
 ```
 
-## Use multipe devices
+## Use multiple devices
 
 To use two dongles with serials `11111111` and `22222222`:
 ```
@@ -259,7 +259,7 @@ To use two dongles with serials `11111111` and `22222222`:
 
 If you have multiple `rtl-sdr` dongles with the same serial you can change it with `rtl_eeprom -s 12345678`.
 
-## Scan multipe frequencies ranges
+## Scan multiple frequencies ranges
 
 To scan `144 Mhz - 146 Mhz` and `440 Mhz - 442 Mhz` in the same time:
 ```
diff --git a/sources/radio/hackrf_sdr_device.cpp b/sources/radio/hackrf_sdr_device.cpp
index 025f417..9e25671 100644
--- a/sources/radio/hackrf_sdr_device.cpp
+++ b/sources/radio/hackrf_sdr_device.cpp
@@ -147,7 +147,7 @@ void HackrfSdrDevice::setup(const FrequencyRange &frequencyRange) {
   if (frequencyRange.center() != m_frequency) {
     Logger::debug("HackRf", "set center {}", frequencyToString(frequencyRange.center()));
     if (hackrf_set_freq(m_device, frequencyRange.center()) != HACKRF_SUCCESS) {
-      throw std::runtime_error("can not set frequnecy");
+      throw std::runtime_error("can not set frequency");
     }
     m_frequency = frequencyRange.center();
   }
diff --git a/sources/radio/recorder.cpp b/sources/radio/recorder.cpp
index 2c20110..74c2c67 100644
--- a/sources/radio/recorder.cpp
+++ b/sources/radio/recorder.cpp
@@ -45,8 +45,8 @@ void Recorder::processSamples(const std::chrono::milliseconds& time, const Frequ
   m_lastDataTime = std::max(m_lastDataTime, time);
   for (auto it = m_workers.begin(); it != m_workers.end();) {
     auto f = [it](const std::pair<FrequencyRange, bool>& data) { return it->first == data.first; };
-    const auto transmisionInProgress = std::any_of(activeTransmissions.begin(), activeTransmissions.end(), f);
-    if (transmisionInProgress) {
+    const auto transmissionInProgress = std::any_of(activeTransmissions.begin(), activeTransmissions.end(), f);
+    if (transmissionInProgress) {
       it++;
     } else {
       const auto frequencyRange = it->first;
diff --git a/sources/radio/sdr_scanner.cpp b/sources/radio/sdr_scanner.cpp
index 03b54c2..9a4f08d 100644
--- a/sources/radio/sdr_scanner.cpp
+++ b/sources/radio/sdr_scanner.cpp
@@ -97,7 +97,7 @@ void SdrScanner::checkManualRecording() {
     const auto frequencyRange = m_manualRecording->frequencyRange;
     const auto totalTime = m_manualRecording->time;
 
-    Logger::info("Scanner", "start manual recoridng: {}, time: {} seconds", frequencyRange.toString(), std::chrono::duration_cast<std::chrono::seconds>(totalTime).count());
+    Logger::info("Scanner", "start manual recording: {}, time: {} seconds", frequencyRange.toString(), std::chrono::duration_cast<std::chrono::seconds>(totalTime).count());
     m_device->startStream(frequencyRange);
     while (m_isRunning && time() - startTime <= totalTime) {
       m_device->waitForData();
diff --git a/tests/test_ring_buffer.cpp b/tests/test_ring_buffer.cpp
index 4686187..b598de1 100644
--- a/tests/test_ring_buffer.cpp
+++ b/tests/test_ring_buffer.cpp
@@ -38,7 +38,7 @@ TEST(RingBufferTest, Overflow) {
 
 TEST(RingBufferTest, Round) {
   std::vector<uint8_t> push;
-  std::vector<uint8_t> poped;
+  std::vector<uint8_t> popped;
 
   constexpr auto PUSH_SIZE = 1229;
   constexpr auto POP_SIZE = 1231;
@@ -50,16 +50,16 @@ TEST(RingBufferTest, Round) {
 
   RingBuffer buffer(BUFFER_SIZE);
   uint32_t pushed = 0;
-  while (poped.size() < push.size()) {
+  while (popped.size() < push.size()) {
     while (buffer.availableDataSize() < POP_SIZE && pushed < push.size()) {
       buffer.push(push.data() + pushed, PUSH_SIZE);
       pushed += PUSH_SIZE;
     }
     while (POP_SIZE <= buffer.availableDataSize()) {
       const auto tmp = buffer.pop(POP_SIZE);
-      std::copy(tmp.begin(), tmp.end(), std::back_inserter(poped));
+      std::copy(tmp.begin(), tmp.end(), std::back_inserter(popped));
     }
   }
 
-  EXPECT_EQ(push, poped);
+  EXPECT_EQ(push, popped);
 }