diff --git a/radio/tests/desymbolizer/Makefile b/radio/tests/desymbolizer/Makefile
new file mode 100644
index 0000000..b9e3d6a
--- /dev/null
+++ b/radio/tests/desymbolizer/Makefile
@@ -0,0 +1,39 @@
+include ./config.mk
+
+DEFINES := -Dradio_float_t=float -Dfir_float_t=float
+CXXFLAGS_release := -O3 -flto
+CFLAGS_release := -O3 -flto
+LDFLAGS_release := -O3 -flto
+TARGET_ARCH := -march=native
+CXXFLAGS += -std=c++20
+CXXFLAGS += -Wno-volatile
+CXXFLAGS += -Wno-deprecated-declarations
+
+DEFINES_debug += -DTEST_DEBUG
+
+PWD := $(realpath .)
+CXX_SRCS += $(PWD)/test_desymbolizer.cpp
+
+LIBS := -lstdc++ -lm -lpthread -lrt 
+LDFLAGS += $(TARGET_ARCH) $(LIBDIR)
+DEFINES += -DPROCESSOR_BUFFER_USE_EXCEPTIONS
+INCLUDES += -I $(LIBSRC_PATH) -I $(BLAZE_PATH)
+
+all: compile app
+app: packages link
+
+.PHONY: Radio Fir Crc Wav
+
+packages: Radio Fir Crc Wav
+	
+Radio:
+	@$(MAKE) -C $(LIBSRC_PATH)/cpp/radio
+Fir:
+	@$(MAKE) -C $(LIBSRC_PATH)/fir
+Crc:
+	@$(MAKE) -C $(LIBSRC_PATH)/crc
+Wav:
+	@$(MAKE) -C $(LIBSRC_PATH)/wav
+
+include $(MAKE_HOME)/compile.mk
+include $(MAKE_HOME)/link.mk
diff --git a/radio/tests/desymbolizer/config.mk b/radio/tests/desymbolizer/config.mk
new file mode 100644
index 0000000..75d89ec
--- /dev/null
+++ b/radio/tests/desymbolizer/config.mk
@@ -0,0 +1,10 @@
+MAKE_HOME ?= /home/jens/work/software/make
+CONFIG ?= debug
+TARGET ?= test_desymbolizer
+BUILD_DIR ?= $(shell pwd)/build/${CONFIG}
+MAKEFLAGS += --no-print-directory
+
+LIBSRC_PATH ?= $(realpath ../../../../../libsrc)
+BLAZE_PATH ?= $(realpath ../../../../../extlib/blaze)
+
+export
\ No newline at end of file
diff --git a/radio/tests/desymbolizer/test_desymbolizer.cpp b/radio/tests/desymbolizer/test_desymbolizer.cpp
new file mode 100644
index 0000000..d244cb8
--- /dev/null
+++ b/radio/tests/desymbolizer/test_desymbolizer.cpp
@@ -0,0 +1,43 @@
+#include <cpp/radio/DeSymbolizer.hpp>
+
+void print_bytes(uint8_t *bytes, size_t size)
+{
+	while(size--)
+	{
+		printf("%02X", *bytes);
+		bytes++;
+	}
+	printf("\n");
+}
+
+void test(DeSymbolizer &dut, size_t numBitsPerSym, symbol_t *syms, size_t numSyms)
+{
+	size_t numbytes;
+	uint8_t bytes[2];
+
+	dut.setNumBitsPerSymbol(numBitsPerSym);
+	for (size_t i=0; i < numSyms; i++)
+	{
+		printf("Symbol %zu\n", i);
+		numbytes = dut.sym2bytes(syms[i], bytes);
+		if (numbytes)
+		{
+			print_bytes(bytes, numbytes);
+		}
+	}
+}
+
+int main()
+{
+	printf("DUT is DeSymbolizer\n");
+
+	DeSymbolizer dut;
+
+	symbol_t syms[] = {0x00000181, 0x00000523, 0x00000781, 0x00000001, 0x00000003, 0x00000003, 0x00000003, 0x00000003};
+
+	test(dut, 2, syms, sizeof(syms)/sizeof(syms[0]));
+	test(dut, 8, syms, sizeof(syms)/sizeof(syms[0]));
+	test(dut, 12, syms, sizeof(syms)/sizeof(syms[0]));
+
+	return 0;
+}