diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
index 46b1fde51..5498d432c 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
@@ -66,7 +66,8 @@ uint8_t adcEnableMask_10g = 0xFF;
 uint32_t transceiverMask = DEFAULT_TRANSCEIVER_MASK;
 
 int32_t clkPhase[NUM_CLOCKS] = {};
-uint32_t clkFrequency[NUM_CLOCKS] = {DEFAULT_RUN_CLK, DEFAULT_ADC_CLK, DEFAULT_SYNC_CLK, DEFAULT_DBIT_CLK};
+uint32_t clkFrequency[NUM_CLOCKS] = {DEFAULT_RUN_CLK, DEFAULT_ADC_CLK,
+                                     DEFAULT_SYNC_CLK, DEFAULT_DBIT_CLK};
 int dacValues[NDAC] = {};
 // software limit that depends on the current chip on the ctb
 int vLimit = 0;
@@ -2125,9 +2126,8 @@ int getMaxPhase(enum CLKINDEX ind) {
               MAX_PHASE_SHIFTS_STEPS;
 
     char *clock_names[] = {CLK_NAMES};
-    LOG(logDEBUG1,
-        ("Max Phase Shift (%s): %d (Clock: %d MHz, VCO:%d Hz)\n",
-         clock_names[ind], ret, clkFrequency[ind], PLL_VCO_FREQ_HZ));
+    LOG(logDEBUG1, ("Max Phase Shift (%s): %d (Clock: %d MHz, VCO:%d Hz)\n",
+                    clock_names[ind], ret, clkFrequency[ind], PLL_VCO_FREQ_HZ));
 
     return ret;
 }
@@ -2209,16 +2209,17 @@ int getFrequency(enum CLKINDEX ind) {
         LOG(logERROR, ("Unknown clock index %d to get frequency\n", ind));
         return -1;
     }
-    #ifndef VIRTUAL
-        // get the measured frequency from the firmware
-        int measuredFreqHz = ALTERA_PLL_getFrequency(ind);
+#ifndef VIRTUAL
+    // get the measured frequency from the firmware
+    int measuredFreqHz = ALTERA_PLL_getFrequency(ind);
 
-        // checking against 0 here ensures compatibility with old firmware, TODO: remove this check at some point
-        if (measuredFreqHz != 0) {
-            // Round to nearest MHz. (should we round at all ?)
-            clkFrequency[ind] = measuredFreqHz;
-        }
-    #endif VIRTUAL
+    // checking against 0 here ensures compatibility with old firmware, TODO:
+    // remove this check at some point
+    if (measuredFreqHz != 0) {
+        // Round to nearest MHz. (should we round at all ?)
+        clkFrequency[ind] = measuredFreqHz;
+    }
+#endif
     return clkFrequency[ind];
 }
 
diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
index 8ebe24b42..2e95c08a1 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
@@ -51,8 +51,8 @@
 #define DEFAULT_TIMING_MODE           (AUTO_TIMING)
 #define DEFAULT_TX_UDP_PORT           (0x7e9a)
 #define DEFAULT_RUN_CLK               (80000000) // 80
-#define DEFAULT_ADC_CLK               (40000000)  // 40
-#define DEFAULT_SYNC_CLK              (40000000)  // 40
+#define DEFAULT_ADC_CLK               (40000000) // 40
+#define DEFAULT_SYNC_CLK              (40000000) // 40
 #define DEFAULT_DBIT_CLK              (200000000)
 #define NS_TO_CLK_CYCLE               (1E-9) // ns to MHz
 #define DEFAULT_TRANSCEIVER_MASK      (0x3)
@@ -95,7 +95,7 @@
 #define BIT32_MSK              (0xFFFFFFFF)
 #define BIT16_MASK             (0xFFFF)
 
-#define MAXIMUM_ADC_CLK  (65000000)
+#define MAXIMUM_ADC_CLK (65000000)
 #define PLL_VCO_FREQ_HZ (800000000)
 
 /* Struct Definitions */
diff --git a/slsDetectorServers/slsDetectorServer/src/ALTERA_PLL.c b/slsDetectorServers/slsDetectorServer/src/ALTERA_PLL.c
index ba5cce501..eed289ae5 100644
--- a/slsDetectorServers/slsDetectorServer/src/ALTERA_PLL.c
+++ b/slsDetectorServers/slsDetectorServer/src/ALTERA_PLL.c
@@ -328,12 +328,12 @@ int ALTERA_PLL_SetOutputFrequency(int clkIndex, int pllVCOFreqHz, int value) {
         return (int)temp;
         */
 
-    #if defined(CHIPTESTBOARDD) && !defined(VIRTUAL)
-        // wait for firmware to measure the actual frequency
-        usleep(2 * 1000 * 1000);
-        value = ALTERA_PLL_getFrequency(clkIndex);
-        LOG(logDEBUG1, ("Frequency is %d\n", value));
-    #endif
+#if defined(CHIPTESTBOARDD) && !defined(VIRTUAL)
+    // wait for firmware to measure the actual frequency
+    usleep(2 * 1000 * 1000);
+    value = ALTERA_PLL_getFrequency(clkIndex);
+    LOG(logDEBUG1, ("Frequency is %d\n", value));
+#endif
     return value;
 }
 
diff --git a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
index bb00c00fa..39c776571 100644
--- a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
+++ b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
@@ -5869,7 +5869,8 @@ int set_clock_frequency(int file_des) {
             } else {
                 int ret = setFrequency(c, val);
                 if (ret == FAIL) {
-                    sprintf(mess, "Could not set %s to %d %s\n", modeName, val,"Hz");
+                    sprintf(mess, "Could not set %s to %d %s\n", modeName, val,
+                            "Hz");
                     LOG(logERROR, (mess));
                 } else {
                     int retval = getFrequency(c);
@@ -5930,8 +5931,8 @@ int get_clock_frequency(int file_des) {
     if (ret == OK) {
         retval = getFrequency(c);
         char *clock_names[] = {CLK_NAMES};
-        LOG(logDEBUG1,
-            ("retval %s clock (%d) frequency: %d %s\n", clock_names[c], (int)c, retval, "Hz"));
+        LOG(logDEBUG1, ("retval %s clock (%d) frequency: %d %s\n",
+                        clock_names[c], (int)c, retval, "Hz"));
     }
 #endif
     return Server_SendResult(file_des, INT32, &retval, sizeof(retval));
diff --git a/slsDetectorSoftware/generator/autocomplete/autocomplete.py b/slsDetectorSoftware/generator/autocomplete/autocomplete.py
index 356e82eab..c4b11838c 100644
--- a/slsDetectorSoftware/generator/autocomplete/autocomplete.py
+++ b/slsDetectorSoftware/generator/autocomplete/autocomplete.py
@@ -16,6 +16,7 @@ type_values = {
     'special::mv': ["mv", "mV"],
     "special::deg": ["deg"],
     "special::time_unit": ["s", "ms", "us", "ns"],
+    "special::freq_unit": ["Hz", "KHz", "MHz"],
     "special::hard": ["hard"],
     "special::force-delete-normal-file": ["--force-delete-normal-file"],
     "special::currentSourceFix": ["fix", "nofix"],
diff --git a/slsDetectorSoftware/generator/commands.yaml b/slsDetectorSoftware/generator/commands.yaml
index 5c6bed695..5c0365554 100644
--- a/slsDetectorSoftware/generator/commands.yaml
+++ b/slsDetectorSoftware/generator/commands.yaml
@@ -2,6 +2,41 @@
 # detectors: MYTHEN3
 
 ################# TEMPLATES #################
+FREQ_COMMAND:
+  infer_action: true
+  help: ""
+  template: true
+  actions:
+    GET:
+      require_det_id: true
+      function: ''
+      args:
+        - argc: 0
+          output: [ OutString(t) ]
+        - argc: 1
+          arg_types: [ special::freq_unit ]
+          output: [ "OutString(t , args[0])" ]
+    PUT:
+      function: ''
+      require_det_id: true
+      input: [ converted_freq ]
+      input_types: [ defs::Hz ]
+      args:
+        - argc: 1
+          arg_types: [ std::string ]
+
+          separate_freq_units:
+            input: 'args[0]'
+            output: [ converted_freq, unit ]
+          output: [ 'args[0]' ]
+        - argc: 2
+          arg_types: [ int, special::freq_unit ]
+
+          convert_to_freq:
+            input: [ 'args[0]', 'args[1]' ]
+            output: converted_freq
+          output: [ 'args[0]', 'args[1]' ]
+
 TIME_COMMAND:
   infer_action: true
   help: ""
@@ -429,6 +464,35 @@ CTB_GET_INDEX:
 
 
 ################# COMMANDS ##################################
+################# FREQ_COMMAND #############
+adcclk:
+  help: "[n_clk] [(optional unit) Hz(default)|KHz|MHz]\n\t[Ctb][Xilinx Ctb] ADC clock frequency."
+  inherit_actions: FREQ_COMMAND
+  actions:
+    GET:
+      function: getADCClock
+    PUT:
+      function: setADCClock
+
+runclk:
+  help: "[n_clk] [(optional unit) Hz(default)|KHz|MHz]\n\t[Ctb][Xilinx Ctb] Run clock frequency."
+  inherit_actions: FREQ_COMMAND
+  actions:
+    GET:
+      function: getRunClock
+    PUT:
+      function: setRunClock
+
+
+dbitclk:
+  help: "[n_clk] [(optional unit) Hz(default)|KHz|MHz]\n\t[Ctb][Xilinx Ctb]  Clock for latching the digital bits."
+  inherit_actions: FREQ_COMMAND
+  actions:
+    GET:
+      function: getDBitClock
+    PUT:
+      function: setDBitClock
+
 ################# TIME_COMMAND #############
 
 period:
@@ -1271,23 +1335,6 @@ asamples:
     PUT:
       function: setNumberOfAnalogSamples
 
-adcclk:
-  help: "[n_clk in MHz]\n\t[Ctb][xilinx Ctb] ADC clock frequency in MHz."
-  inherit_actions: INTEGER_COMMAND_VEC_ID
-  actions:
-    GET:
-      function: getADCClock
-    PUT:
-      function: setADCClock
-
-runclk:
-  help: "[n_clk in MHz]\n\t[Ctb][xilinx Ctb] Run clock in MHz."
-  inherit_actions: INTEGER_COMMAND_VEC_ID
-  actions:
-    GET:
-      function: getRUNClock
-    PUT:
-      function: setRUNClock
 
 dsamples:
   help:  "[n_value]\n\t[Ctb] Number of digital samples expected."
@@ -1317,15 +1364,6 @@ romode:
       function: setReadoutMode
       input_types: [ defs::readoutMode ]
 
-dbitclk:
-  help: "[n_clk in MHz]\n\t[Ctb][xilinx Ctb] Clock for latching the digital bits in MHz."
-  inherit_actions: INTEGER_COMMAND_VEC_ID
-  actions:
-    GET:
-      function: getDBITClock
-    PUT:
-      function: setDBITClock
-
 extsampling:
   help: "[0, 1]\n\t[Ctb] Enable for external sampling signal for digital data to signal by extsampling src command. For advanced users only."
   inherit_actions: INTEGER_COMMAND_VEC_ID
diff --git a/slsDetectorSoftware/generator/commands_parser/commands_parser.py b/slsDetectorSoftware/generator/commands_parser/commands_parser.py
index 9a11cd789..576cbfa21 100644
--- a/slsDetectorSoftware/generator/commands_parser/commands_parser.py
+++ b/slsDetectorSoftware/generator/commands_parser/commands_parser.py
@@ -50,7 +50,6 @@ class CommandParser:
         if len(arg['input_types']) != len(arg['input']):
             raise ValueError(f'Argument {arg} does not have the correct number of inputs')
         if 'separate_time_units' in arg:
-
             if arg['separate_time_units']['input'] == "":
                 raise ValueError(f'Argument {arg} does not have the correct number of inputs for separate_time_units')
             if len(arg['separate_time_units']['output']) != 2:
@@ -60,6 +59,16 @@ class CommandParser:
                 raise ValueError(f'Argument {arg} does not have the correct number of inputs for convert_to_time')
             if len(arg['convert_to_time']['output']) == "":
                 raise ValueError(f'Argument {arg} does not have the correct number of outputs for convert_to_time')
+        if 'separate_freq_units' in arg:
+            if arg['separate_freq_units']['input'] == "":
+                raise ValueError(f'Argument {arg} does not have the correct number of inputs for separate_freq_units')
+            if len(arg['separate_freq_units']['output']) != 2:
+                raise ValueError(f'Argument {arg} does not have the correct number of outputs for separate_freq_units')
+        if 'convert_to_freq' in arg:
+            if len(arg['convert_to_freq']['input']) != 2:
+                raise ValueError(f'Argument {arg} does not have the correct number of inputs for convert_to_freq')
+            if len(arg['convert_to_freq']['output']) == "":
+                raise ValueError(f'Argument {arg} does not have the correct number of outputs for convert_to_freq')
         # if infer_action:
         #     if arg['argc'] in self.argc_set:
         #         raise ValueError(f'Argument {arg} has a duplicate argc')
diff --git a/slsDetectorSoftware/generator/cpp_codegen/codegen.py b/slsDetectorSoftware/generator/cpp_codegen/codegen.py
index dc5e3294f..0c0724cbe 100644
--- a/slsDetectorSoftware/generator/cpp_codegen/codegen.py
+++ b/slsDetectorSoftware/generator/cpp_codegen/codegen.py
@@ -137,6 +137,16 @@ class CodeGenerator:
             if 'convert_to_time' in arg and arg['convert_to_time']:
                 self.write_line(f'auto {arg["convert_to_time"]["output"]} = '
                                 f'StringTo < time::ns > ({", ".join(arg["convert_to_time"]["input"])});')
+            if 'separate_freq_units' in arg and arg['separate_freq_units']:
+                self.write_line(f'std::string tmp_freq({arg["separate_freq_units"]["input"]});')
+                self.write_line(f'std::string {arg["separate_freq_units"]["output"][1]}'
+                                f' = RemoveUnit(tmp_freq);')
+                self.write_line(f'auto {arg["separate_freq_units"]["output"][0]} = '
+                                f'StringTo < defs::Hz > (tmp_freq,'
+                                f' {arg["separate_freq_units"]["output"][1]});')
+            if 'convert_to_freq' in arg and arg['convert_to_freq']:
+                self.write_line(f'auto {arg["convert_to_freq"]["output"]} = '
+                                f'StringTo < defs::Hz > ({", ".join(arg["convert_to_freq"]["input"])});')
             input_arguments = []
             if 'exceptions' in arg:
                 for exception in arg['exceptions']:
diff --git a/slsDetectorSoftware/generator/gen_commands.py b/slsDetectorSoftware/generator/gen_commands.py
index ee4f97a8c..07f563a34 100644
--- a/slsDetectorSoftware/generator/gen_commands.py
+++ b/slsDetectorSoftware/generator/gen_commands.py
@@ -119,7 +119,25 @@ def generate(
                                     f'StringTo < time::ns > ({", ".join(arg["convert_to_time"]["input"])});')
                                 codegen.write_line(
                                     f'}} catch (...) {{  throw RuntimeError("Could not convert arguments to time::ns");}}')
+                            elif 'separate_freq_units' in arg and arg['separate_freq_units']:
+                                codegen.write_line(f'try {{')
+                                # TODO: refactor this repeating code
+                                codegen.write_line(f'std::string tmp_freq({arg["separate_freq_units"]["input"]});')
+                                codegen.write_line(f'std::string {arg["separate_freq_units"]["output"][1]}'
+                                                   f' = RemoveUnit(tmp_freq);')
+                                codegen.write_line(f'auto {arg["separate_freq_units"]["output"][0]} = '
+                                                   f'StringTo < defs::Hz > (tmp_freq,'
+                                                   f' {arg["separate_freq_units"]["output"][1]});')
+                                codegen.write_line(
+                                    f'}} catch (...) {{  throw RuntimeError("Could not convert argument to defs::Hz");}}')
 
+                            elif 'convert_to_freq' in arg and arg['convert_to_freq']:
+                                codegen.write_line(f'try {{')
+
+                                codegen.write_line(
+                                    f'StringTo < defs::Hz > ({", ".join(arg["convert_to_freq"]["input"])});')
+                                codegen.write_line(
+                                    f'}} catch (...) {{  throw RuntimeError("Could not convert arguments to defs::Hz");}}')
                             for i in range(len(arg['input'])):
                                 if not arg['cast_input'][i]:
                                     continue
diff --git a/slsDetectorSoftware/generator/readme.md b/slsDetectorSoftware/generator/readme.md
index e86c4fad5..ab4ed3a9d 100644
--- a/slsDetectorSoftware/generator/readme.md
+++ b/slsDetectorSoftware/generator/readme.md
@@ -302,7 +302,13 @@ write_arg in codegen reads the argument fields and generate c++ code accordingly
   std::string $output[1]$ = RemoveUnit(tmp_time);
   auto $output[0]$ = StringTo<time::ns>(tmp_time, $output[1]$);
   ```
-- convert_to_time: takes three parameters: input[0], input[1], output
+- separate_freq_units: takes three parameters: input, output[0], output[1] each one is a variable name
+  ```cpp
+  std::string tmp_freq($input$);
+  std::string $output[1]$ = RemoveUnit(tmp_freq);
+  auto $output[0]$ = StringTo<defs::Hz>(tmp_freq, $output[1]$);
+  ```
+- convert_to_time and convert_to_freq: takes three parameters: input[0], input[1], output
   ```cpp
   auto output = StringTo<time::ns>(input[0], input[1]);
   ```
diff --git a/slsSupportLib/include/sls/ToString.h b/slsSupportLib/include/sls/ToString.h
index c9eb15f2b..14fda7539 100644
--- a/slsSupportLib/include/sls/ToString.h
+++ b/slsSupportLib/include/sls/ToString.h
@@ -105,6 +105,38 @@ ToString(From t) {
     }
 }
 
+/** Convert frequency with specified output unit */
+template <typename T, typename Rep = double>
+typename std::enable_if<is_frequency<T>::value, std::string>::type
+ToString(T f, const std::string &unit) {
+    double val = static_cast<double>(f.value);
+
+    std::ostringstream os;
+    if (unit == "Hz")
+        os << val << ' ' << unit;
+    else if (unit == "kHz")
+        os << val / (static_cast<double>(1e3)) << ' ' << unit;
+    else if (unit == "MHz")
+        os << val / (static_cast<double>(1e6)) << ' ' << unit;
+    else
+        throw std::runtime_error("Unknown unit: " + unit);
+    return os.str();
+}
+
+/** Convert frequency automatically selecting the unit */
+template <typename From>
+typename std::enable_if<is_frequency<From>::value, std::string>::type
+ToString(From f) {
+    int val = f.value;
+    if (val < 1e3) {
+        return ToString(f, "Hz");
+    } else if (val < 1e6) {
+        return ToString(f, "kHz");
+    } else {
+        return ToString(f, "MHz");
+    }
+}
+
 /** Conversion of floating point values, removes trailing zeros*/
 template <typename T>
 typename std::enable_if<std::is_floating_point<T>::value, std::string>::type
@@ -276,7 +308,7 @@ ToString(const T &container, const std::string &unit) {
     return os.str();
 }
 
-template <typename T>
+template <typename T, std::enable_if_t<sls::is_duration<T>::value, int> = 0>
 T StringTo(const std::string &t, const std::string &unit) {
     double tval{0};
     try {
@@ -301,6 +333,33 @@ T StringTo(const std::string &t, const std::string &unit) {
     }
 }
 
+template <typename T, std::enable_if_t<sls::is_frequency<T>::value, int> = 0>
+T StringTo(const std::string &f, const std::string &unit) {
+    double fval{0};
+    try {
+        fval = std::stod(f);
+    } catch (const std::invalid_argument &e) {
+        throw RuntimeError("Could not convert string to frequency");
+    }
+    auto unitLower = [&] {
+        std::string result = unit;
+        std::transform(result.begin(), result.end(), result.begin(),
+                       [](unsigned char c) { return std::tolower(c); });
+        return result;
+    }();
+
+    if (unitLower.empty() || unitLower == "mhz") {
+        return T(static_cast<int>(fval * 1e6));
+    } else if (unitLower == "khz") {
+        return T(static_cast<int>(fval * 1e3));
+    } else if (unitLower == "hz") {
+        return T(static_cast<int>(fval));
+    } else {
+        throw RuntimeError(
+            "Invalid unit in conversion from string to frequency");
+    }
+}
+
 template <typename T> T StringTo(const std::string &t) {
     std::string tmp{t};
     auto unit = RemoveUnit(tmp);
diff --git a/slsSupportLib/include/sls/TypeTraits.h b/slsSupportLib/include/sls/TypeTraits.h
index 1a153e67b..926b2227d 100644
--- a/slsSupportLib/include/sls/TypeTraits.h
+++ b/slsSupportLib/include/sls/TypeTraits.h
@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: LGPL-3.0-or-other
 // Copyright (C) 2021 Contributors to the SLS Detector Package
 #pragma once
+#include "sls/sls_detector_defs.h"
+
 #include <type_traits>
 #include <vector>
 
@@ -120,4 +122,9 @@ struct has_bool_isValid : std::false_type {};
 template <typename T>
 struct has_bool_isValid<T, std::void_t<decltype(std::declval<T>().isValid)>>
     : std::is_same<decltype(std::declval<T>().isValid), bool> {};
+
+template <typename T> struct is_frequency : std::false_type {};
+
+template <> struct is_frequency<defs::Hz> : std::true_type {};
+
 } // namespace sls
\ No newline at end of file
diff --git a/slsSupportLib/include/sls/sls_detector_defs.h b/slsSupportLib/include/sls/sls_detector_defs.h
index a5ccb2566..f4b4c5c7a 100644
--- a/slsSupportLib/include/sls/sls_detector_defs.h
+++ b/slsSupportLib/include/sls/sls_detector_defs.h
@@ -209,6 +209,14 @@ class slsDetectorDefs {
         std::map<std::string, std::string> addJsonHeader;
     };
 
+    struct Hz {
+        int value{0};
+        explicit Hz(int v) : value(v){};
+        constexpr bool operator==(const Hz &other) const {
+            return (value == other.value);
+        }
+    };
+
 #endif
     enum frameDiscardPolicy {
         NO_DISCARD,
@@ -833,7 +841,6 @@ typedef struct {
 #endif
 
 #ifdef __cplusplus
-
 // TODO! discuss this
 #include <vector> //hmm... but currently no way around
 namespace sls {
diff --git a/slsSupportLib/tests/test-ToString.cpp b/slsSupportLib/tests/test-ToString.cpp
index 76ee87245..e577423e4 100644
--- a/slsSupportLib/tests/test-ToString.cpp
+++ b/slsSupportLib/tests/test-ToString.cpp
@@ -58,6 +58,15 @@ TEST_CASE("conversion from duration to string", "[support]") {
     REQUIRE(ToString(us(-100)) == "-100us");
 }
 
+TEST_CASE("conversion from frequency to string", "[support]") {
+    REQUIRE(ToString(defs::Hz(150)) == "150 Hz");
+    REQUIRE(ToString(defs::Hz(1500)) == "1.5 kHz");
+    REQUIRE(ToString(defs::Hz(1500000)) == "1.5 MHz");
+    REQUIRE(ToString(defs::Hz(150), "Hz") == "150 Hz");
+    REQUIRE(ToString(defs::Hz(150), "kHz") == "0.15 kHz");
+    REQUIRE(ToString(defs::Hz(150), "MHz") == "0.00015 MHz");
+}
+
 TEST_CASE("Convert vector of time", "[support]") {
     std::vector<ns> vec{ns(150), us(10), ns(600)};
     REQUIRE(ToString(vec) == "[150ns, 10us, 600ns]");
@@ -137,6 +146,15 @@ TEST_CASE("string to std::chrono::duration", "[support]") {
     REQUIRE_THROWS(StringTo<ns>("asvn"));
 }
 
+TEST_CASE("string to frequency", "[support]") {
+    REQUIRE(StringTo<defs::Hz>("150", "Hz") == defs::Hz(150));
+    REQUIRE(StringTo<defs::Hz>("150Hz") == defs::Hz(150));
+    REQUIRE(StringTo<defs::Hz>("1.5 kHz") == defs::Hz(1500));
+    REQUIRE(StringTo<defs::Hz>("1.5MHz") == defs::Hz(1500000));
+    REQUIRE_THROWS(StringTo<defs::Hz>("5xs"));
+    REQUIRE_THROWS(StringTo<defs::Hz>("asvn"));
+}
+
 TEST_CASE("string to detectorType") {
     using dt = slsDetectorDefs::detectorType;
     REQUIRE(StringTo<dt>("Eiger") == dt::EIGER);